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Приходько, О. М., and В. М. Ванько. "Процедура проведення FMEA-аналізу." Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66644.
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Сучасні тенденції розвитку провідних машинобудівних компаній (МК)
направлені на поліпшення якості продукції ще на етапі її проектування.
Одним із найефективніших методів аналізу потенційних відмов та ризиків в
ході проектування продукції у світі є FMEA-аналіз.
FMEA-аналіз - це системна методика проведення аналізу ризику відмов,
що призначена для визначення потенційних видів відмов продуктів і
процесів, оцінки ризику, пов'язаного з цими видами відмов, ранжування
проблем відповідно до їх вагомості.
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Sohail, Owais Arshad. "Object Oriented Failure Modes & effect Analysis : Climate System of Hybrid Vehicles." Thesis, Karlstads universitet, Institutionen för ingenjörsvetenskap, fysik och matematik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-35750.
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In order to make the product more reliable and efficient, the failures and their occurrence related to the products should be reduced if not eliminated. To achieve that, the approach of Failure Modes Effects Analysis (FMEA) is used in the process development phase where all the aspects of the product failure are generated and studied. With the passage of time the systems began to become more complex and alone FMEA not good enough approach for the complex systems. To handle a complex system is a hard and tedious job which requires more expertise. In complex systems the individual system might have overlaps, their boundaries are often unclear. The computation of information and its transmission between the components is extensive. Object Oriented FMEA resolves these issues by identifying the structure and screening a proper boundary of the system. It looks deeply in to the operational environment and external shared resources. It then decomposes its functions and behaviors in to separable physical, logical and attributes objects. The OO-FMEA approach obeys to the objectives of modern product development process and its principles. This approach makes it comparatively much easier to analyze the complex auto-motive systems that are built in extensive electrical architecture. The systems components perform their task while being interacted, linked or even independent. In this thesis the OO-FMEA approach is implemented on the Climate System of the SPA Hybrid.
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Baitar, Rami. "Riskanalys av elsystem med funktions-FMEA." Thesis, KTH, Data- och elektroteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-146712.
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Riskanalysverktyget failure mode and effects analysis (FMEA) som analyserar kompo-nenter och signaler är beroende av att designen av fordonets elsystem finns tillgängligt och utförs därför sent i utvecklingsprocessen av elsystem. Detta medför att vissa fel inte analyseras i tid och kanske måste designas bort i efterhand vilket kan leda till ökad sy-stemkomplexitet samt längre och dyrare utvecklingsprocesser.Målet med examensarbetet är att genom en litteraturstudie ta reda på om det finns me-toder eller arbetssätt som gör att Scania tidigt i utvecklingsprocessen av elsystem kan genomföra funktionsanalyser i sitt riskanalysarbete med FMEA samt analysera dessa.Resultatet av detta examensarbete visar att det är möjligt att påbörja FMEA-arbetet tidigt i utvecklingsprocessen av elsystem om ingenjörerna utgår från ett funktionsperspektiv i riskanalysarbetet där de listar och rangordnar de funktioner som tillsammans realiserar en eller flera funktionaliteter samt deras felmoder, feleffekter, feldetektering, allvarlighet, sannolikhet och frekvens. Med hjälp av en FFMEA kan ingenjörerna tidigt i utveck-lingsprocessen av elsystem snabbt och effektivt hantera de identifierade säkerhetskritiska funktionerna.En befintlig funktionalitet på Scania har brutits ned i funktioner och en FFMEA har genomförts på dessa som en demonstration på hur en FFMEA kan genomföras och se ut.The risk analysis tool failure mode and effects analysis (FMEA) that analyzes the com-ponents and signals of a electrical system is design dependent and are therefore per-formed late in the development process of electrical systems. This could lead to that some errors are not analyzed in time and may need to be designed away which can lead to increased system complexity as well as longer and more expensive development proc-esses.The objective of this study is that through a literature review identify if there are any methods or approaches that enables Scania to implement a functional hazard analyzes early in the development process of electrical systems and to analyze these.The results of this thesis shows that it is possible to start the FMEA process early in the development process of the electrical system if the engineers have a functional perspec-tive in mind when performing the risk analysis where they list and rank the functions that is provided by the electrical system and their failure modes, failure effects, failure de-tection, severity, probability and occurrence.By using a function based FMEA, the engineer(s) can identify and promptly handle the safety critical functions early in the development process of a electrical system.A existing functionality at Scania has been broken down into functions and a functional hazard analysis has been performed on these as a demonstration of how a function based FMEA can be carried out and look like.
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Düsing, Christa, and David Prust. "Supplementary failure mode and effect analysis (FMEA) for safety application standards DIN EN ISO 13849 safety function-fmea." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71272.
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In the automotive industry, the Safety Function-FMEA according to ISO 26262 and its application to functional safety relevant systems is a well-established process in the form of Automotive Safety Integrity Levels (ASILs). These represent the failure mitigation that must be applied to ensure an acceptable residual risk of malfunctioning behaviour. The DIN EN ISO 13849 (ISO 13849) already describes a process to reduce risks for machines which starts with a Hazard And Risk Analysis (HARA) as described in DIN EN ISO 12100 and concludes with the Safety Requirements Specification (SRS). The SRS is a functional and technical safety concept defining requirements and guidelines to make
sure the design conforms to defined safety goals. ISO 13849 lists important faults and failures for various technologies. The defined Safety Functions (SFs) can be classified in corresponding categories that lead to the particular hardware/system structure. This applies to mechatronic systems consisting of at least one sensor, one control unit and one actuator to monitor the system and effect a response in case of failure. Compared to the methods described in ISO 13849, the Safety Function-FMEA allows systematic identification of additional failures resulting from combinations of effects, rather than only listing the main failure causes. Based on the complexity of the machines it is highly recommended to perform a Safety Function-FMEA as a complementary method to assess and improve the overall safety of machinery.
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Macháč, Miroslav. "Použití metody FMECA pro prevenci chyb v průmyslovém podniku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230078.
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This thesis is focused on using FMECA in a manufacturing company. Analysis was developed in conjunction with a manufacturing company and its main goal is to decrease number of scrap. FMECA helped to find the most critical possible defects and then some actions for decreasing number of scrap were suggested.
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Potěšilová, Hana. "Procesní FMECA analýza kartonového stojanu." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-233188.
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The thesis deals with application of method FMECA to the manufacturing process of cardboard stand. The aim of work is to describe cardboard stand manufacturing, identify fault conditions and their consequences in particular manufacturing processes. In order to increase reliability of cardboard stands, we have designed measures based on analysis of criticality.
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Wikdahl, Alexander, and Andreas Eriksson. "Produktutvecklingav friktionssvetshuvuden genom K-FMEA och DFA2." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-64737.
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I och med ökad konkurrens och ökade kundkrav behöver företag bedriva produktutveckling med en rapid approach. ESAB:s sätt att svara upp mot dessa krav har resulterat i ett brett produktsortiment av friktionssvetshuvuden. Deras långsiktiga mål är därför att inrätta en ny standard för att reducera kostnader. Planen är därför att aktivt bedriva produktutveckling tillsammans med universitet och högskolor runt om i landet. Detta produktutvecklingsprojekt kan beskrivas som en första etapp i ett hållbart produktutvecklingsarbete på ESAB mot ett långsiktigt mål om att sätta en ny standard inom FSW. Syftet med detta examensarbete är att analysera två friktionssvetshuvuden: FSW LEGIO 4UT och FSW LEGIO 5UT genom K-FMEA och DFA2. Därigenom kartlägga vilka potentiella brister som finns i de befintliga konstruktionerna och belysa var bristerna finns. Analysresultatet ska tillsammans med produktutvecklingsteori, forma ett informationsunderlag för bedrivande av fortsatt produktutvecklingsarbete. Tillvägagångssättet har bedrivits genom tre faser: 1) uppstart/förarbete, 2) genomförande och 3) avslut/presentation. Vetenskapssynen har präglats av positivism med vissa inslag av hermeneutik. Forskningsmetoden har både vad gäller datainsamling, analysmetodik och utvärderingsmetodik varit kvalitativ. Undersökningsansatsen har varit av abduktiv art medan undersökningsinriktningen har varit kombinerad explorativ och deskriptiv. Först analyserades ritningsunderlag, komponentlistor, STEP-filer och produktspecifikationer för sammanlagt åtta svetshuvuden. Ett strategiskt urval av tre gjordes för att sedan ytterligare exkludera ett av dessa. En djupdykning gjordes i det empiriska underlaget som gav upphov till två hypoteser: 1) komponenter som under drift är i rörelse torde vara högst belägna att utsättas för fel, 2) svetshuvudena kan möjligen komprimeras volymmässigt och komponenter reduceras till antalet. En semi-strukturerad fokusgruppintervju genomfördes för fyra respondenter med teknisk expertis på området. Resultatet av denna gjorde att hypoteserna kunde bekräftas. Detta empiriska datamaterial ställdes mot befintlig teori rörande K-FMEA och DFA2. Vidare utfördes K-FMEA enligt teorin i sju steg på såväl systemnivå som komponentnivå. Sedan gjordes detsamma för DFA2 vars arbetssätt sker i fyra steg. Resultatet av denna studie påvisar att de allra mest kritiska komponenterna rör spindeln, spindelhuset och lager. Påfrestningar finns också i hydrauliken som har tilldelats höga kriticitetstal. Det finns även feltyper med hög risk relaterat till tillverkning och montering. Vad gäller DFA2 visade resultatet att de befintliga konstruktionerna har låg grad av monteringsvänlighet. Detta då flera monteringsriktningar används, flera komponenter är stora, tunga och svårhanterade. En del komponenter har svåråtkomlig monteringsplats. Vidare behövs för vissa komponenter extra hjälpmedel och verktyg för att kunna genomföra monteringen. Rekommendationen till ESAB i en potentiell andra etapp av detta produktutvecklingsarbete, vore att komplettera denna studie med andra produktutvecklingsverktyg och kostnadskalkyler. Detta för att se till att göra rätt från början och eliminera risker för eventuella efterföljande kostsamma justeringar.With increased competition and increased customer requirements, companies need to pursue product development with a rapid approach. ESAB’s way of responding to these demands has resulted in a wide product range of friction welding heads. Their long-term goal is therefore to set a new standard to reduce costs. The plan is to actively conduct product development together with universities in Sweden. This product development project can be described as a first step in sustainable product development work at ESAB towards a long-term goal of setting a new standard within FSW. The purpose of this thesis is to analyze two friction welding heads: FSW LEGIO 4UT and FSW LEGIO 5UT through K-FMEA and DFA2. Thereby, identify the potential shortcomings found in the existing constructions and highlight where the shortcomings exist. The analysis results, together with product development theory, will form an information base for the pursuit of continued product development. The approach has been conducted through three phases: 1) start-up/pre-work, 2) implementation, and 3) completion/presentation. The science view has been characterized by a positivistic nature with elements of hermeneutic in some respects. The research method has been qualitative in terms of data collection, analysis methodology and evaluation methodology. The research effort has been abductive, while the research focus has been a combination of exploratory and descriptive. First, drawing documents, component lists, STEP files and product specifications were analyzed for a total of eight friction welding heads. A strategic selection of three was made to further exclude one more. An in-depth dive into the empirical evidence was made which gave rise to two hypotheses: 1) Components that move relative to others in welding operation, are most likely to be subject to errors; 2) These friction welding heads may possibly be compressed in terms of volume, and the components reduced to the number. A semi-structured focus group interview was conducted with a total of four respondents who have technical expertise in the field. The result of the interview allowed the hypothesis to be confirmed. The empirical data was put against the existing theory regarding K-FMEA and DFA2. Furthermore, K-FMEA was performed according to the theory in seven stages at both system level and component level. Then the same was done for DFA2, whose mode of operation takes place in four stages. The result of this thesis shows that the most critical components relate to the spider, spider house and the bearings. There are also stains in hydraulics that have been awarded high risk priority numbers. Along with that, failure modes with high risk frequencies related to manufacturing and assembly are identified. When it comes to DFA2, the result shows that the existing designs has low degree of assembly ease. This is because several mounting directions are used, several components are large, heavy and difficult to handle. Some components also have difficult access point. In addition, external equipment such as fixtures and tools, are needed to install some components. The recommendation to ESAB in a potential second step of their product development work, would be to complement this study with other product development tools and cost calculations. This to make sure to do right from the start and eliminate risks for any subsequent costly adjustments.
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Приходько, О. М., and В. М. Ванько. "Застосування FMEA - аналізу для поліпшення якості продукції." Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/62385.
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Проаналізувавши досвід закордонних виробників, можна зробити
висновок, що сучасні тенденції розвитку провідних машинобудівних
компаній (МК) направлені на поліпшення якості продукції ще на етапі її
проектування. Саме виключення ризиків відмов на етапі проектування
продукції і є найголовнішою актуальною проблемою для вітчизняних
підприємств МК. Одним із найефективніших методів аналізу потенційних
відмов та ризиків у світі є FMEA-аналіз.
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Sesma, Vitrián Elena. "Beitrag zur Ermittlung von Kosten und Nutzen der präventiven Qualitätsmethoden QFD und FMEA." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973143878.
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DALOSTO, Diogo Nunes. "Uma abordagem para FMEA baseada em métodos quantitativos." reponame:Repositório Institucional da UNIFEI, 2018. http://repositorio.unifei.edu.br/xmlui/handle/123456789/1659.
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Esta Tese apresenta uma abordagem para FMEA baseada em métodos quantitativos, através da análise do sistema de medição por atributos de Repetitividade e Reprodutividade (R&R). Com base em uma revisão sistemática da literatura sobre o FMEA, observou-se que diversas pesquisas apontam que os seus resultados possuem viés de subjetividade, posto que são gerados segundo interpretação e conceito de pessoas, que são por sua própria natureza, tendenciosas. A partir desta premissa, desenvolveu-se esta pesquisa com o escopo dividido em duas partes, na qual a primeira tem o objetivo de avaliar quantitativamente a subjetividade presente no processo de atribuição das notas do FMEA para os índices de Severidade, Ocorrência, Detecção e o RPN. Assim, por meio dos índices R&R de concordância ICC (Interclass Correlation Coefficient), índice de Kappa e uma concepção de matriz de confiabilidade para o índice de Kendall, analisou-se quantitativamente quatro casos de FMEA, dos quais inferiu-se que seus resultados, do ponto de vista estatístico, apresentaram subjetividade no processo de atribuição de notas. A partir destes resultados, desenvolveu-se a segunda parte do escopo da pesquisa, onde efetuou-se uma análise crítica sobre o FMEA, estabelecendo-se quais fatores causam a subjetividade nesta ferramenta e impactam na sua confiabilidade. Em vista disso, com o propósito de minimizar a subjetividade da ferramenta, propõem-se um novo modelo, chamado de “FMEA R&R”, estabelecendo-se diretrizes e uma estrutura metodológica para corroborar estatisticamente o FMEA. A fim de validar o FMEA R&R, empregou-se o modelo em um caso real da indústria, concluindo-se que o modelo minimiza a subjetividade e aumenta a eficiência do FMEA, em termos de confiabilidade para tomada de decisão e gerenciamento de riscos.
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Лебединська, О. М., and Олена Михайлівна Проскурня. "Актуальність застосування методу FMEA в клінічних дослідницьких центрах." Thesis, Національний фармацевтичний університет, 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/25031.
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Gonçalves, Patrícia Raquel Rodrigues. "Aplicação da FMEA no desenvolvimento de novos produtos." Master's thesis, Universidade de Aveiro, 2010. http://hdl.handle.net/10773/5335.
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Mestrado em Engenharia e Gestão IndustrialO processo de Desenvolvimento de Novos Produtos desempenha um papel crucial na competitividade empresarial. Com o presente Relatório de Estágio pretende-se transmitir a experiência vivida na melhoria do processo de Desenvolvimento de Novos Produtos na Oliveira & Irmão S.A., que por razões de simplicidade será designada por OLI, onde se aplicou a metodologia do Failure Mode and Effect Analysis (FMEA) a um produto – placas de comando para autoclismos – com o objectivo de identificar os principais modos de falhas do produto e suas consequências a nível de desenvolvimento de novos produtos. Neste relatório de Estágio foi dada ênfase ao desenvolvimento de novos produtos, à metodologia de gestão de projectos e à FMEA, que cobrem o segundo capítulo. A principal vantagem do trabalho executado é a de poder aplicar os resultados obtidos aos mesmos tipos de produtos dentro da categoria Placas de Comandos. Por outro lado, com a experiência obtida, poder-se-á aplicar a FMEA aos restantes grupos de produtos, bem como ao processo produtivo de forma a melhorar a produtividade da empresa. No presente estudo foi possível detectar a existência de duas situações diferentes. A primeira envolvendo uma diferenciação de modos de falha por graus de risco e uma segunda por graus de severidade. Foram obtidos doze modos de falha relevantes, dos quais três são respeitantes a graus de severidade elevados. Dos modos de falha detectados ficaram por resolver os relacionados com a cromagem das peças, sobretudo pelo facto de a OLI não ter competência nucleares nesta área e recorrer à subcontratação da mesma. Todos os restantes modos de falha foram analisados e as acções correctivas definidas, sempre que possível no processo de desenvolvimento de novos produtos.
The New Product Development process plays a crucial role in business competitiveness. The main goal of the present Internship Report is to transmit the experience lived in the improvement of the New Products Development at Oliveira & Irmão, S.A., that will be designated as OLI by simplicity reasons, where the Failure Mode and Effect Analysis (FMEA) methodology was applied to a product – push plate to in-wall cistern – in order to identify the product’s main failure modes and its consequences at new product development level. In this apprenticeship report the emphasis was placed on the development of new products, on the project’s management methodology and on the FMEA, which cover the second chapter. The main advantage of the executed work is that they could be replicated on the same types of products among the Plates of Commands category. On the other hand, with the obtained experience, FMEA can be applied to the remaining groups of products, as well as to the productive process in order to improve the productivity of the company. In the present study it was possible to detect the existence of two different situations. The first involving the differentiation of the failure modes according to the degrees of risk and the second involving the degree of severity. Twelve important failure modes were obtained, in which three of them are pertaining to high severity degrees. Among the main failure modes, the ones related to chrome are still unsolved, basically because OLI do not have nuclear competencies and resorts to outsourcing. All the remaining failure modes were analyzed and the correction actions defined, as much as possible during the new product development process.
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Janíčková, Bronislava. "Procesní FMECA analýza výroby smrkového lepeného profilu." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241249.
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The thesis is focused on the application of the method FMECA process manufacturing whitewood glued profile. The aim of work is to describe the production, identify fault conditions and their consequences in the fractional sub-processes of production and the analysis of criticality propose measures to increase the reliability of achieving the required quality.
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Garcia, Marlise Dellamora. "Uso integrado das técnicas de HACCP, CEP e FMEA." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2000. http://hdl.handle.net/10183/10884.
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Este trabalho discute a aplicação integrada das técnicas de CEP, FMEA e HACCP. A discussão foi feita com base em um estudo de caso, realizado na empresa Elegê Alimentos, mais especificamente, junto ao processo produtivo do leite longa vida. Esse processo produtivo envolve diversas etapas, que seguem desde o recebimento da matéria-prima até o envase do produto final. O objetivo principal do estudo de caso foi promover melhorias de qualidade e confiabilidade no processo. A partir do aprendizado obtido com o estudo de caso, foi possível elaborar uma proposta para o uso integrado das técnicas mencionadas. A proposta descrita neste trabalho contempla as seguintes etapas: (i) revisão dos pré-requisitos do HACCP, visando promover as primeiras melhorias no processo; (ii) uso do CEP, onde houver dados numéricos, passíveis de tratamento estatístico; (iii) paralelamente, uso do FMEA onde houver muitas operações e atividades; por fim, (iv) uso do HACCP, para assegurar um forte controle sobre os aspectos associados à segurança alimentar.This thesis discusses the integrated application of the techniques known as SPC, FMEA and HACCP. The discussion was based on a case study conducted on Elegê Alimentos. The object of the case study was the production line of the long life milk, which contemplates several stages, from reception of raw material to packaging. The main purpose of the case study was to promote quality and reliability improvements in the production line. The case study was a learning process, allowing the elaboration of a proposal for the integrated application of the mentioned techniques. The proposal described in this work contemplates the following steps: (i) revision of HACCP pre-requisites, searching for initial improvements on the production line; (ii) use of SPC where numeric data is available, allowing statistical analysis; (iii) use of FMEA in processes presenting several operations and activities; and finally (iv) use of HACCP, aiming a strong control on all aspects associated with food safety.
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Miguéis, Bruno Manuel Couto. "Aplicação do FMEA a sistemas de construção de viadutos." Master's thesis, Universidade de Aveiro, 2010. http://hdl.handle.net/10773/3853.
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Mestrado em Engenharia CivilDada a complexidade da construção de tabuleiros de viadutos com recurso ao cimbre ao solo e à viga de lançamento e dos riscos associados a essas operações, procedeu-se ao desenvolvimento de matrizes de avaliação qualitativa de análise de riscos (FMEA – método de análise de falhas e efeitos) à qual se associaram escalas de graduação do grau de risco. Este trabalho incide principalmente na avaliação de riscos desses dois processos construtivos. Iniciou-se pela classificação dos vários tipos de pontes/viadutos e pela análise dos principais processos construtivos aplicados na sua construção. Efectuou-se a análise da sinistralidade no sector da construção e de um método qualitativo de avaliação de riscos, o método de análise de falhas e efeitos (FMEA). Para se obter uma graduação quantitativa do grau de risco aplicaram-se dois métodos de valoração, tendo-se estimado, para um deles, os valores a atribuir à probabilidade da ocorrência com base nos dados da sinistralidade laboral. Da avaliação de riscos efectuada, resultaram valores para os 4 graus de risco (risco muito elevado, risco elevado, risco moderado e risco baixo) cujas consequências são materializadas pela severidade que pode decorrer para o(s) trabalhador(es). Efectuou-se a avaliação de riscos referida na construção do viaduto da ligação ferroviária da linha do Norte ao Porto de Aveiro.
The completion of this work focuses mainly on the risks assessment of two constructive processes of viaducts/bridges: with falsework and launching girder. It was beginning with the classification of the various types of viaducts / bridges and with the analysis of major construction processes applied in its construction. It was studied a qualitative method of assessment of risks, the method of Failure Mode and Effect Analysis (FMEA), and the labour accidents figures. The evaluation of the risk degree took place through two different methods of valuation to permit the comparative analysis of the results. The results obtained to the degradation level led to four types of risks: very elevated, elevated, moderated and low. The severity of each one of these degrees is materialized through the consequences that can occur to the workers. The risks assessment was realized during the construction of the railway viaduct to the seaport of Aveiro.
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Cruz, Simão Pedro Saimeiro. "Implementação de uma FMEA no caso de uma luminária." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/1789.
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Mestrado em Engenharia e Gestão IndustrialNo actual cenário empresarial, o aumento da competitividade sente-se de dia para dia, tornando a importância de todos os sistemas de gestão de qualidade e suas metodologias cada vez maior. Estes assumem um papel fundamental, possibilitando que os produtos proporcionem a satisfação dos seus clientes. Tendo em conta este facto, este trabalho foi realizado com principal incidência na prevenção de possíveis falhas e definição de possíveis acções de correcção, no início da fase de concepção de um produto: o Downligth. Para o referido efeito, foi realizado um estudo utilizando a técnica de Análise de Modos e Efeitos de Falha, também conhecida por FMEA. ABSTRACT: In the current business scenario, the competitiveness increases day-by-day, making the systems of quality management and its methodologies more important. These have a key role, that enabling their products to give satisfaction to their final customers. Given this fact, this work was made with the main focus on prevention of potential failures and definition of possible corrective action, in the moment that the product starts, the design phase. For that purpose, the study was conducted using the technique of Analysis of Modes and Effects of Failure, also known as FMEA.
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Veselý, Milan. "Použití metody FMEA pro prevenci chyb v průmyslovém podniku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230077.
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The subject of this thesis is using of FMEA method and risk assessment in the production process in Eurokov s.r.o. company. In the theoretical part are discussed the detail different types of FMEA and their applications. The practical part is focused on analyze the situation of poor quality for a specific product from Eurokov s.r.o. company. Data is used for application of FMEA form and to specification of precautionary measures for reduction poor quality in the production process.
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Приходько, О. М., and В. М. Ванько. "Застосування FMEA-аналізу, як дієвого інструменту підвищення якості машинобудівної продукції." Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/48149.
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Сьогодні на ринку продукції машинобудівногокомплексу (МК) представлено широкий асортимент товарів різної номенклатури, але не всі вони однаково конкурентоспроможні. Одна із головних причин неконкурентоспроможності товарів на ринку – це їх недостатня якість.
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Souza, Ruy Victor Barbosa de. "Aplicação do método FMEA para priorização de ações de melhoria em fluxos de processos." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18156/tde-15012013-103231/.
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Os diversos conceitos e técnicas de melhoria contínua de processos têm sido aplicados, nos dias de hoje, em indústrias de diversos setores e empresas prestadoras de serviços. Tanto em ambientes de manufatura quanto em ambientes administrativos, muitas empresas têm enxergado a oportunidade de aplicar técnicas de melhoria de processos e de qualidade, como as técnicas da Produção Enxuta e da Gestão da Qualidade. Entretanto, têm-se notado que algumas iniciativas de melhoria falham por não terem sido devidamente planejadas e priorizadas. Por isso, métodos que busquem melhorar a eficácia de iniciativas de melhoria, aumentando a taxa de sucesso das implantações, têm se tornado muito importantes. Este trabalho apresenta uma proposta de adaptação do método FMEA (Failure Mode and Effect Analysis) para a análise de desperdícios abordados pela Produção Enxuta e definição de ações prioritárias para eliminação ou minimização de desperdícios baseado nos critérios de severidade, ocorrência e detecção. O uso da técnica proposta pode auxiliar a minimizar duas das grandes dificuldades no planejamento de implantação ou manutenção de Produção Enxuta, que são a identificação dos desperdícios e a definição de quais serão eliminados ou minimizados prioritariamente. A proposta foi desenvolvida a partir de um estudo de campo, analisando um fluxo de informação de processamento de pedidos em uma indústria, paralelamente ao desenvolvimento de um projeto de Produção Enxuta. A proposta inova também ao propor um índice de risco que prioriza ação sobre as causas que geram desperdícios mais severos. Os resultados obtidos sugerem que a sistemática proposta pode contribuir para a melhoria da eficácia de programas de Produção Enxuta.The concepts and techniques for processes continuous improvement have been applied, nowadays, in industries of a lot of sectors and service provider companies. Both in manufacturing and office environments, a lot of companies have identified the opportunity of applying quality and process improvement techniques such as the ones of Lean Production and Quality Management. However, it has been noticed that some improvement initiatives fail because they are not correctly planned and prioritized. Therefore, methods that aim at increasing improvement initiatives effectiveness, by enhancing the implementation success rates, have become very important. This paper presents a proposal of use of the FMEA (Failure Mode and Effect Analysis) to analyze wastes (to be tackle by Lean Production implementations) and define priorities of improvement actions aimed at minimization or elimination of these wastes based on the criteria of severity, occurrence and detection. The adoption of the proposed technique can aid to mitigate one of the major difficulties in implementing and maintaining Lean production programs, related to which wastes should be eliminate first. The proposal was developed in a field research, based on the analysis of a flow of information for order processing in parallel to the implementation of a Lean Production system. The good results suggest that the proposal can contribute to the effectiveness of Lean Production programs. The paper is finalized with suggestions of improvements of the proposal and possibilities for further applications.
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Srđan, Vulanović. "Razvoj opšteg modela za implementaciju integrisanog sistema menadžmenta na osnovu procene rizika u procesima organizacija." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2014. http://www.cris.uns.ac.rs/record.jsf?recordId=87798&source=NDLTD&language=en.
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Osnovni cilj disertacije je kreiranje modela integrisanogsistema menadžmenta zasnovanog na proceni rizika aktivnostiunutar procesa organizacije. Doktorskom disertacijom jeuspostavljen model koji je, između ostalog, obuhvatio:• Procenu rizika za svaku identifikovanu opasnost uprocesima organizacije, sa aspekta standarda od interesa• Projektovanje dokumentacije integrisanog sistemamenadžmenta na osnovu visine procenjenih rizikaPoređenjem projektovane sa postojećom dokumentacijom, u trirealna preduzeća, zaključeno je da je obim i struktura dokumenataoptimizovana za uspešan menadžment rizicima, što snižavatroškove i omogućava efikasno upravljanje preduzećem.The main objective of the P.h. thesis is to create a model of anintegrated management system based on risk assessment of activitieswithin the processes of the organization. Doctoral dissertation hasestablished a model that, among other things, included :• Assessment of risk for each identified hazard in the processes of theorganization, in terms of standards of interest• Design of documentation for integrated management system based onthe level of estimated riskComparing projected from existing documentation , in the three realcompanies , it was concluded that the scope and structure ofdocuments is optimized for succesfull risk management, which lowerscosts and enables efficient management of the company.
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PALMEIRA, Juliana Nobrega Barbosa. "Aplicação das metodologias FMEA-FUZZY para a gestão de riscos na cadeia de suprimentos em empresas do APL de confecções do agreste pernambucano." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/18729.
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FACEPE
A Cadeia de Suprimentos é uma forma organizacional eficaz que se constitui como componente-chave da competitividade e da efetividade organizacional. Porém, há a probabilidade de as empresas não atingirem o desempenho esperado, com Cadeias de Suprimentos cada vez mais complexas, principalmente devido aos riscos de falhas nas diversas etapas executadas. Nesse sentido, o gerenciamento de riscos na Cadeia de Suprimentos se torna essencial, para que se possam definir as estratégias corretas, buscando diminuir a força desses riscos para que não afetem a continuidade dos negócios. O presente trabalho tem como objetivo avaliar qual é o comportamento de vinte e seis empresas que fazem parte do Arranjo Produtivo Local – APL de Pernambuco diante dos riscos das Cadeias de Suprimentos nas quais elas estão inseridas, com base em entrevistas e aplicações de questionários. Esta pesquisa fez uso da metodologia Failure Mode and Effects Analysis - FMEA associada à lógica Fuzzy para realização de um estudo de caso, priorizando ações de melhoria. Utilizando a FMEA, foi possível caracterizar os modos de falha em ordem de severidade, ocorrência e detecção. Já com a utilização da lógica Fuzzy foi possível reduzir as fragilidades ajudando na tomada de decisão caracterizada por informações e julgamentos imprecisos, o que contribuiu de forma satisfatória para o gerenciamento dos riscos. Os resultados da pesquisa mostraram que, no geral, há ausência de práticas de gerenciamento de riscos nas empresas, porém, com as propostas e ações de melhorias, foi possível identificar ajustes aos processos e avaliar a eficácia das soluções propostas, prevenindo os riscos e aplicando ações preventivas ou corretivas para diminuir ou até mesmo eliminar os efeitos de falhas sobre os processos.
The supply chain management is an effective organizational form that constitutes as a keycomponent of the competitiveness and organizational effectiveness. However, there is the probability that the enterprises do not have the expected performance, with increasingly complex supply chains, mainly due to the failure risks in the various steps performed. In this way, the risk management in the Supply Chain becomes essential for them to be able to define the correct strategies seeking to minimize the risks so the business continuity is not affected. This paper aims to evaluate what is the behavior of the twenty-six enterprises in Local Productive Arrangement (LPA) from Pernambuco in Brazil regarding to the Supply Chain Management risks in which they are inserted, based on interviews and questionnaires applications. This research used the Failure Mode and Effects Analysis - FMEA methodology associated with the fuzzy logic to perform a case study, prioritizing improvement actions. By using FMEA it was possible to characterize the failure modes in severity, occurrence and detection sequence and by using the fuzzy logic it was possible to reduce the fragilities, contributing to the decision making characterized by information and non-precise judgments, which contributed satisfactorily for the risk management. The research results have shown that there is absence of risk management practices in the enterprises. However, with the proposals and improvement actions, it was possible to identify adjustments to the processes and evaluate the efficacy of the proposed solutions, preventing the risks and applying preventive or corrective actions to diminish or even eliminate the failure effects over the processes.
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Puglieri, Fábio Neves. "Revisão e análise ambiental e operacional de métodos de ecodesign baseados em QFD e FMEA." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18156/tde-26112010-153613/.
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A partir da década de 1990, iniciou-se uma difusão de métodos e ferramentas direcionadas à adequação ambiental de produtos, cuja aplicação é realizada em determinadas fases do seu desenvolvimento. Porém muitos destes métodos publicados não integram questões ambientais importantes, como a perspectiva de ciclo de vida, resultando muitas vezes no desenvolvimento de produtos ineficientes do ponto de vista do ecodesign. Assim, este trabalho tem por objetivo analisar alguns destes métodos de modo que possam garantir o desenvolvimento de produtos ambientalmente mais adequados. Para isto foi realizada uma revisão sistemática sobre requisitos para métodos de ecodesign, o que permitiu identificar características que o ecodesign deve atender, tanto do ponto de vista ambiental quanto do operacional. Por meio destes requisitos foram propostos critérios utilizados na análise de 19 métodos de ecodesign baseados no FMEA e no QFD. Como resultado da análise, identificou-se que a grande maioria dos métodos analisados não estão de acordo com o que a literatura sugere.During 1990s decade began a scattering of methods and tools aimed at the environmental suitability of products whose application is performed at certain stages of development. However, many of these published methods do not incorporate important environmental issues, the prospect of life cycle, often resulting in inefficient product development from the standpoint of ecodesign. This study aims to examine some of these methods to ensure the development of more environmentally suitable products. So it was carried out a systematic review of ecodesign requirements for methods, which allowed us to identify characteristics that these methods must meet from the environmental point of view and application. Through these requirements have been proposed criteria used in the analysis of 19 ecodesign methods based on FMEA and QFD. As a result of this analysis, it was identified that most part of the methods reviewed are not in agreement with literature suggestions.
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Dittmann, Lars Uwe. "Ontologiebasierte Fehlermöglichkeits- und Einflussanalyse : OntoFMEA /." Wiesbaden : Dt. Univ.-Verl, 2007. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016069917&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA.
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Klint, Emilia. "Riskanalys vid produktutveckling : Ett kvalitetsarbete med processtyrning." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-14047.
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Detta examensarbete har utförts på uppdrag av företaget Stegia AB, som vid examenarbetets uppstart behövde hjälp med kvalitetssäkringen av deras projektprocess. Det som först och främst saknades var en dokumenterad riskanalys. Valet gjordes att införa en riskanalys i form av en FMEA som skulle passa till Stegias projekt som ofta skiljer från varandra i storlek och omfattning. FMEAn har utvecklats med hänsyn till den version av Stegias projektmodell, APQP, som användes vid examenarbetets uppstart och är uppbyggd med denna som grund. FMEAn är också utvecklad för att vara så flexibel som möjligt och därför gå att anpassa till flera olikatyper av riskanalyser inom olika branscher. Arbetet har genomförts som en produktutvecklingsprocess och det har varit flera produktutvecklingsverktyg inblandade i processen. Detta dels för att skapa en förståelse för produkten som skulle utvecklas men även för att visa på att studenten lärt sig dessa och behärskar dem tack vare sin utbildning. Resultatet av arbetet är flera dokument som är framtagna för att komplettera och förbättra Stegias projektprocess. Det specifika resultatet som efterfrågades av studenten under examensarbetet resulterade i ett mall-dokument i Excel bestående av två flikar, en med FMEA och en med ett hjälpavsnitt. Förbättringsarbetet med Stegias projektprocess är tänkt att fortsätta efter examenarbetets slut, då de framtagna dokumenten ska testas på flera olika projekt. Syftet och målet med examensarbetet anses ha uppnåtts och vidare utveckling av produkten är möjlig.
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Shebl, Nada Atef. "Promoting patient safety using Failure Mode and Effect Analysis (FMEA)." Thesis, University College London (University of London), 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517951.
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Hidalgo, Erick Miguel Portugal. "Modelo para diagnose de falhas em regulador de velocidade de turbinas hidráulicas." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/3/3151/tde-20102010-162737/.
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O regulador de velocidade tem a função principal de atuar no sentido de aumentar ou diminuir a potência gerada pela turbina quando a velocidade ou freqüência se afasta do valor de referência. Em função da demanda do sistema, o sistema regulador da turbina atua sobre a posição das pás do distribuidor controlando a abertura e conseqüentemente a vazão que chega ao rotor, gerando apenas a energia elétrica necessária para o consumo. O presente trabalho tem como objetivo desenvolver um método para diagnosticar falhas em reguladores de velocidade de turbinas hidráulicas. Baseando-se nas ferramentas de confiabilidade selecionou-se os componentes críticos do sistema para elaborar políticas de manutenção que visam obter maior disponibilidade do sistema. Este trabalho apresenta uma metodologia com as seqüências das atividades que permitem fazer uma análise detalhada e confiável, pois são utilizadas numa ordem lógica e organizada, de forma que o método seja desenvolvido corretamente. A metodologia proposta utiliza as ferramentas de análise de confiabilidade como: Análise de Modos e Efeitos de Falha (FMEA) e Análise de Árvore de Falhas (FTA). O FMEA parte da definição das funções dos sistemas e subsistemas analisados, verificando em seguida as falhas que afetam cada função e todos os modos de falha que levam a cada falha. O FTA é basicamente um método dedutivo que visa identificar as causas ou combinações de causas que possam levar ao evento topo definido.The speed governing system has the primary function of acting to increase or decrease the power generated by the turbine when the speed or frequency deviation from reference value. According to the system demand, the speed governing system turbine operates on the position of the blades of the distributor controlling the opening and therefore the flow that reaches the rotor, generating only the power required for consumption. This work aims at to develop a method to diagnose faults in speed governing system of hydraulic turbines. The tools of reliability selected critical components of the system to develop policies aimed at keeping achieve greater system availability. This work presents a methodology with a sequence of activities allowing one to make a detailed and reliable analysis, because they are used in a logical order and organized so that the model is developed properly. The proposed methodology uses tools such as reliability analysis: Analysis of Failure Modes and Effects (FMEA) and Fault Tree Analysis (FTA). The FMEA part of the definition of the functions of systems and subsystems analyzed, then verifying that the flaws affect every function and all modes of failure that led to each failure. The FTA is basically a deductive method that aims at identifying the causes of combinations of causes that could lead to top event defined.
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Aguiar, Dimas Campos de [UNESP]. "Modelo conceitual para a aplicação de FMEA de processo na indústria automotiva." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/138936.
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Nos últimos anos tem sido possível notar um considerável crescimento no número de empresas e pessoas que aplicam o método de Análise de Modos de Falha e Efeitos, ou FMEA, em análises de processos. Porém, em sua execução há situações de incerteza, com a possibilidade de se promover diferentes tipos de informação, gerando dúvidas se as avaliações estão realmente completas. Este estudo tem como objetivo definir um modelo conceitual para a aplicação FMEA de Processo reduzindo as variações nas interpretações, pontuações e critérios para as decisões. A partir de uma fundamentação teórica, é identificada uma estrutura para construção de FMEA onde as atividades de desenvolvimento são classificadas como qualitativas, quantitativas e corretivas, de acordo com o tipo de análise das avaliações. Um estudo específico é desenvolvido para cada categoria de avaliação, sendo um estudo de caso com a aplicação de FMEA associada aos conceitos de abordagem por processo, referente às análises qualitativas; um levantamento bibliográfico sobre critérios para pontuação em FMEA, referente às análises quantitativas; e um levantamento sobre as regras utilizadas para a recomendação de ações em FMEA de Processo, referente às análises corretivas. Como resultado tem-se uma proposta focada na eliminação de irregularidades na aplicação do FMEA, preenchendo uma lacuna existente entre a teoria e a prática.
In recent years it has been possible to note a considerable growth in the number of companies and people who use the Failure Mode and Effects Analysis, or FMEA, in process analysis. However, in its execution there are uncertainty situations, making possible to promote different types of information, raising questions whether the assessments are really complete. This study aims to define a conceptual model for Process FMEA application, reducing variations in interpretations, scoring and decisions criteria. From a theoretical framework, a structure for FMEA construction is identified, where those development activities are classified as qualitative, quantitative and corrective, according to the type of analysis of the evaluations. A specific study is developed for each category of evaluation. A case study in FMEA application associated with the concepts of process approach is done regarding qualitative analysis; a literature review on scoring FMEA criteria is done regarding quantitative analysis; and a survey on the rules used for recommending actions in Process FMEA is done regarding corrective analysis. As output, a proposal focused on the elimination of irregularities in the implementation of FMEA is done, filling a gap between theory and practice.
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Santos, Carlos Daniel Paiva dos. "Proposta de implementação de uma FMEA no forno de vapor TEKA." Master's thesis, Universidade de Aveiro, 2008. http://hdl.handle.net/10773/1585.
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Mestrado em Engenharia e Gestão IndustrialCom o passar dos anos e com o aumento da competitividade empresarial, as organizações evoluíram para sistemas cada vez mais complexos. Nestes sistemas, a gestão e controlo da qualidade e respectivas metodologias e processos têm se tornado cada vez mais elaborados, rigorosos e eficazes, na busca incessante da obtenção de um produto tão perfeito quanto possível, e assim atingir a fidelização do maior número de clientes possível de acordo com o segmento de mercado em que se insere. Esta dissertação visa e tenta fazer perceber a problemática das não conformidades existentes em produtos e processos, e demonstrar como é cada vez mais decisivo para o sucesso de uma empresa, ter uma atitude empreendedora e determinada na obtenção do estatuto de qualidade total. Neste contexto, a ideia chave desta dissertação é focar o controlo de qualidade na prevenção de falhas, e na definição de acções preventivas para as eliminar antes de terem lugar. Neste particular, o destaque vai para a Análise de modos e efeitos de falha (FMEA). ABSTRACT: Over the years and with increasing business competitiveness, the organizations developed systems for increasingly complex. In these systems, management and quality control and their methodologies and processes have become more and more elaborate, accurate and effective, in a incessant search of obtaining a product as perfect as possible in accordance with the market segment in which falls. This thesis aims and try to understand the problem of non-compliance with existing products and processes, and demonstrate how it is increasingly crucial to the success of a company have an entrepreneurial attitude to obtain a total quality level. In this context, the thrust of this dissertation is the focus of quality control in the prevention of failures, and definition of preventive and corrective actions to eliminate before they place. In this particular, the emphasis goes to the failure mode analysis and its effects (FMEA).
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Dittmann, Lars. "OntoFMEA ontologiebasierte Fehlermöglichkeits- und Einflussanalyse /." Wiesbaden : Dt. Univ.-Verl, 2007. http://dx.doi.org/10.1007/978-3-8350-9572-4.
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羅應浮. "The FMEA of Project Management." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/17455915145399108663.
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碩士中華大學
工業工程與管理研究所
88
Abstract Due to the facts that technologies are developed rapidly and the environments that organization face vary significantly﹐the traditional functional organization can not provide effective management to achieve predefined objectives in this e-age. Conventional organization stresses vertical relationships, as a result﹐the horizontal communication and coordination between divisions are time-consuming, additionally, the unavoidable departmentalism disables an organization from being adaptive to the twinkling of the environment, especially, when interaction and coordination of divisions are highly required. The project organization is therefore needed to integrate various resources and bridge the division gap to achieve the organization goals. FMEA is a preventive reliability technique which emphasize Discovering possible causes before finalization of finalization of product design and manufacturing. By using reliability block diagram, the effects of the subsystem failure on the system can be revealed to eliminate or minimize the possibility of real occurrence. The control measure can then be deployed to improve the product reliability. Common techniques of FMEA include risk priority number, criticality score, risk level, criticality analysis and matrix method. This study applies the FMEA technique to the project management of Construction and product research and development. The FMEA evaluates and prioritizes the possible failure causes of project tasks Obtained by using the work breakdown structure method ,the completion of the entire project can be assured by taking preventive measures Accordingly. Key words:project management,FMEA.
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Tai, Sino, and 戴志忠. "FMEA on Green Supply Chain." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/40532789179563943100.
Full textAbstract:
碩士國立高雄應用科技大學
商務經營研究所
93
An enterprise facing Non-Tariff Barriers need to manage risks which were caused by international regulations in order to avoid risk.. Both Green Supply Chain Management (GSCM) and Potential Failure Mode and Effect Analysis (FMEA) are used as tools to solve problems. This study aims to explore a case of the domestic mechanical component industry in the advance stage to introduce the green supply chain.. Through partaking in the operation process with Failure Model and Effect Analysis (FMEA) technique practically, it will produce the risk management mechanism, operation mode and executive strategies. The outcome can be the reference for the domestic mechanical component industy. The main conclusions of the research are: 1. The FMEA is effective to use the program of green supply chain in the initial phase. 2. Common sharing risk by insurance is an effective and fair risk distribution and management mechanism. The insurance mechanismwill be a necessary part when the GSCM mode is established. It will provide a perfect way to deal with the problems of back and punish. 3.It is necessary and sufficient to establish the common platform of information interchange so that the transmission cost of the GSCM information will be decreased and the effect of information by using the internet resources that will be improved to enhance the supply chain system’s competitiveness.
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張維寬. "Assessment of Decision using FMEA." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/00116574915564283169.
Full textAbstract:
碩士中華大學
科技管理研究所
90
Abstract The purpose of the study aims to identify some of the deficiencies behind a decision-making analysis proposal for uncovering some of the potential problems associated with certain business activities using the FMEA method with which to derive at preventive measures or locate feasible alternative proposal. While conventional performance assessment measures facts occurred in businesses, yet in a fast changing environment, not only it is essential that businesses need a long-term planning that helps to attain short-term goal but more importantly how best to create a business’ future value. In light of which, the drafting of business strategic objectives and how best to focus resources and energy on such predefined strategic objectives, particularly whether an implementing pan being assessed can bring maximum yield to a business, remain a focal point that most concerns the survival of a business entity. Prior to inducting decision making, the ability for a business management to map out feasible implementing obstacles and a preventive strategy by rationally arranging a priority of sequence in business management can infinitely help improve the quality of such decision-making processes. In the initial planning phase, the FMEA analysis can ensure the dependability of such a decision-making process, and allow a host of proposals to meet a business’s prescribed strategic objectives. Most importantly the induction of FMEA can also help locate the weak links in the overall management, or measures that offer lesser feasibility, together with improvement strategic proposal, to help conserve depleting business resources and enhance business competitiveness at the same time.
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YANG, HUNG-HSIN, and 楊宏信. "Applying FMEA in Pipe Manufacturing Process." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/66434622010853872610.
Full textAbstract:
碩士國立雲林科技大學
工業工程與管理系
104
This research is using Failure Mode and Effects Analysis(FMEA) method, take the the manufacture process of iron and steel plant for example. To analyze the failure point of manufacture process, follow up the key point and focus on the potential risk to propose the solution and improvement. Furthermore, which can not only increase the stability and efficiency of manufacture procedure but also decrease the abnormal loss. Due to research result, the case study shows that by applying the FMEA method which focus on the key manufacture process and propose the improvement solution, can prevent the damage from failure and using Risk Priority Number(RPN) to bring down the range. It can prevent failure happen again and through the FMEA management process, and enhance the group communication and cooperation to form up the experience database for the future.
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KADLECOVÁ, Jana. "Využití metody FMEA u vybraného podniku." Master's thesis, 2005. http://www.nusl.cz/ntk/nusl-43556.
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Hsu, Shen-pao, and 許盛堡. "A QFD and FMEA Integrated Model." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/65061385300446532655.
Full textAbstract:
碩士元智大學
工業工程與管理學系
90
A QFD and FMEA Integrated Model Student：Shen-Pao Hsu Advisors：Dr. Chieh-Yuan Tsai Department of Industrial Engineering & Management Yuan-Ze University Abstract In today’s highly competitive marketplace, the enterprise must satisfy all customers’ need in various products. To satisfy various customers’ need, producing high quality products by lower cost is the challenge that current enterprise needs to face. Therefore, Concurrent Engineering (CE) are getting more concern to achieve the goal. In CE, the Quality Function Deployment (QFD) is often used and discussed. QFD is based on the customer’s need, and transfer the need to the product functions through a serious of matrix operation. However, it is found that QFD can’t efficiently find out the inner problem caused by the production process or feedback from the marketing. For overcoming the problem of QFD, this research is to develop a integrate system, thus, the failure information of products can be feed backed to the developing structure of QFD directly and efficiently, so that corrections can be made in the beginning of the product design. In this research, we establish a CE product developing system that integrates QFD and failure mode and effects analysis (FMEA). FMEA is used to generate the Risk Priority Number (RPN) from product’s failure and effect chart. The RPN can be affected by some managerial parameters such as P value and k value. After getting the RPN, we would get FMEA weight value (Fi) and it would be feedback to QFD directly. In the study of Bike disc brake case, the integrated model of our research can feedback the failure information of products corrected efficiently during design stage. Keyword: Concurrent engineering (CE); Quality function deployment (QFD); Failure mode and effect analysis (FMEA).
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Hung, Chen Tao, and 陳道宏. "FMEA system built for PCBA Testing." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/84383783950318039954.
Full textAbstract:
碩士元智大學
工業工程與管理學系
92
The main study Printed Circuit Board Assembly (PCBA) in this text carries the process improvement and FMEA systems establishment of testing the development in the factory。This system will regard Design FMEA and Process FMEA as to configure，emphasizing the man-machine interface of the easy operation and quickly the data establishes and searches，changing everybody for long time to FMEA at establish the data and data maintenance not easy of bad impression。Use the FMEA method，analyze the test equipment how to reach the high test coverage rate completely should notice the item that have, improve to have no the processing method of the logical arrangement in the past。 The test equipment is necessary absolutely for PCBA manufacturing process。How to use the most efficient，cover the test with the highest rate method to reach to the product work the examination on the quality，is the target of all test engineer''s effort。Under the premise of the concurrent engineering，considers the process that whole test development and abnormal equipments handling is what have the demand。To use FMEA system for PCBA testing will make whole process become more efficient。
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Chang, chia-ming, and 張家銘. "Improvement of Product External Appearance Using FMEA." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/06971748572172762777.
Full textAbstract:
碩士育達科技大學
資訊管理所
102
With continuous innovation of electronic products, the demand on memory card increases, and consumers also have a higher demand for the quality of the memory cared. Besides the common strategies of low cost and product differentiation, the quality strategy of “meeting customers’ needs” has also become an important link. Poor product quality will result in the loss of business opportunity, market share decline, product liability claims, and loss of customer loyalty, declined in business productivity and costs increase. Therefore, product appearance seems to be an important quality feature. Through the failure mode effect analysis, this study aims to distinguish the seriousness of deficiencies encountered in the appearance quality station, and set the priority sequence of improvements for gradual reduction of deficiencies, in order to achieve quality improvement and increase production rates. The results showed that besides focusing on the adverse effects on memory card products caused by job abnormalities in the production process, the priority sequence of improvement can be determined for the failure risks of the potential failure causes. The sequence of the abnormalities can provide a reference for production line engineers in improving and reducing the reoccurrence of abnormalities, thus lowering the product appearance loss costs and improving quality. It is expected to double the efficiency of memory card production of the company, reduce the waste due to quality improvement, produce products that meet customer needs with fewer resources, and enhance the productivity and quality competitiveness of the enterprise, thus achieving sustained growth and profits of the products. Keyword：Failure Mode and Effect Analysis (FMEA), Business Productivity, Quality
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chen, Jun-jie, and 陳俊傑. "FMEA on the Election Affairs of ROC." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/55188153211627396065.
Full textAbstract:
碩士義守大學
工業工程與管理學系碩士班
93
Since 1950 (the 39th year of the Republic of China), the local election toward democratic politics has been formally been implemented in Taiwan. Over the last few years, especially in Presidential election 2004, election reforming has become the main subject of debate. The Democratic Progressive Party (DPP) obtained more ballots than the Kuomintang (KMT) and President Chen was reappointed in the presidential election 2004. However, the difference ballot between DPP and KMT was only less than 30000, which caused the issues of unfair and unjust election arisen. The above conditions had caused invalid presidential election, an election invalid and ballots recount. The main factors of this unfair election are generalized as below: The presenting voter name in the list and the referendum voter name in the list were exchanged and misapplied; The voter seal didn’t match to the voter name in the list; The voting of non-physical and psychological obstacle elector had been substituted by the teenager relative; Valid ballots and invalid ballots had not been determined according to the rule; The report forms of voting result filled out wrongly; After completed counting, ballots had not been sealed, poorly keeping management, and other mistakes; There were too many of the invalid ballots in the presidential election which had affected what people think about election affairs staff. Moreover, they started to doubt the fairness of election affairs staff. This research employed FMEA (Failure Mode and Effects Analysis) technique which can explain following points: 1. To analyze each potential failure mode and degree of influence in the process of election affairs. 2. To find cause and occurrence in each potential failure mode. 3. To find out method of possible failure mode and its detection. 4. To avoid the failure mode of election affairs or to reduce its occurrence. 5. To reduce the level influence of failure mode. 6. To improve the investigating ability of systematic structure. 7. To enhance the reliability, security, and avoiding unnecessary risk cost of the election affairs By using this method, the fault of election affairs can be transformed into risk analysis and the previous mistakes of election affairs can be improved. Thus, the process of election affairs can be standardized to prevent mistakes, to reduce the dispute of election affairs which might be arisen, to reduce social cost, and to improve the fairness of election affairs bureau. This research will also provide the analysis of election affairs platform and the tool of quantization rules in order to avoid any unnecessary risk of election affairs.
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Chen, Joseph, and 陳文健. "Applying FMEA in Improving the SMT Process." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/17969974521727634170.
Full textAbstract:
碩士大葉大學
工業工程與科技管理學系碩士在職專班
95
The aim of this research is to change impression on uneasiness of data building and data maintain on Process Failure Mode and Effects Analysis system in Electronics Manufacturing Services Failure Mode and Effects Analysis system. So, this research will analyze the problem on manufacturing process by systematical software Failure Mode and Effects Analysis in order to solve the problem efficiently. The way of matrix of serious analysis of systematical software is a system to decide priority of problem solution and add End Effect module for its aim. Fault Tree Analysis is adopted in systematical software that can present all potential FMEA systematically and be figured out the improvement easily for the person concerned. So the manufacture problem can be solved one by one in manufacturing period.
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Hsieh, Meng-Feng, and 謝孟峰. "Applying FMEA for Design of SMT Process." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/g4nesw.
Full textAbstract:
碩士國立虎尾科技大學
工業工程與管理研究所
101
Surface mount technology (SMT) technology is an integral part of today''s production of light, thin, small and high efficiency system in package products. This study for SMT process application failure mode and effects analysis (FMEA) through expert questionnaires prior analysis of potential failure modes, and in accordance with the FMEA implementation steps assessed the risk priority number (RPN) as much as possible in the process development the stage determines priorities failures, avoid future waste manufacturing costs. The results of this study show, failure mode "bumps empty welding" risks due to the bump gas hole factors are assessed out of priority coefficient of 99.75 for the highest, which said this is a critical factor in the SMT process most required priority to prevention of, process design and managers failure to improve prevention reference.
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RUPENDER. "DEVELOPMENT OF A INTEGRATED FTA AND FMEA APPROACH FOR FAILURE ANALYSIS OF SOLAR PHOTOVOLTAIC SYSTEMS." Thesis, 2021. http://dspace.dtu.ac.in:8080/jspui/handle/repository/19749.
Full textAbstract:
There is a need of an alternate source of energy that is both reliable and affordable.
Solar PV system is one of the source which is reliable but it has higher cost. As
technology advances, the cost of harvesting energy decreases, but their lifespan is
determined by several process fault/factors and their mitigation which is true in case
of solar photovoltaic systems. To mitigate the faults, industries use various fault
analysis techniques such as FTA, FMEA, RBD, etc. FMEA is the most commonly
used tools. The results of FMEA are dependent on the knowledge and experience of
the team carrying out the process, which can change the ranking of the faults due to
the vagueness of the ideas of a different team member. In the proposed methodology,
fuzzy logic is used to counter the vagueness of the ideas of a different team member.
The suggested methodology combines the FTA and FMEA approaches as these are
both time-consuming and inefficient when used individually. An integrated FTA and
fuzzy FMEA strategy uses the FTA data as input to the FMEA process, then applies
fuzzy logic to generate the fuzzy RPN value to prioritize the sequence of failure
modes to mitigate first. Twelve failure modes are considered in this work. The results
produced utilizing the integrated technique differed significantly from the standard
method for intermediate failure modes. The proposed methodology can be applied to
any industry, including manufacturing, automobiles, and pharmaceuticals.
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DAI, ZI-XIANG, and 戴子翔. "Analysis of Falling Accident of Construction using FMEA." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/x3j475.
Full textAbstract:
碩士正修科技大學
工業工程與管理研究所
105
In terms of occupational disasters, the construction industry has the highest number of deaths among the industries in Taiwan. According to the “Statistical Table of the Number of Deaths of Major Occupational Disasters by Industries in Taiwan, 2015” published by the Ministry of Labor, the number of occupational deaths of the construction industry is nearly 20% of all industries, and the number one reason is fall accidents. Because of higher investments, high density of division of labor, individual production, higher labor market fluidity, labor-intensive and open-air construction environment, variability in constructions, and low bids of contractors at different levels, the management fee for the safety and health at construction sites is getting lower and lower. This reflects an obvious deficiency of the management and facilities of safety and health at construction sites, and therefore the risks that workers on site face is much higher than those in other industries. Ever since the economic development in Taiwan, there has been a great progress in the construction industry in Taiwan. Fall accidents in the construction industry have taken place frequently in recent years, resulting in serious consequences. Every time when a fall accident happens, all the operating procedures will be stopped to be examined and investigate in terms of fall prevention facilities, all the possible reasons that caused the fall, and aftermath management. This will extend the duration of construction, leading to the increase of costs and losses of owners. In order to prevent fall accidents, this study investigated the reasons for fall accidents with literature review and Failure Mode and Effects Analysis (FMEA) in search of the three main reasons for fall accidents and how to prevent them from happening.According to the analytical results, the three reasons for fall accidents were the lack of safety and health sector, the absence of periodic inspection and upgrades of safety and health prevention devices by owners, and the consideration of operating procedures before engaging in operations that had the danger of falling. These three reasons should be the priorities to be handled.
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Lai, Yi-Chun, and 賴怡君. "FMEA utilization research in returned goods risk management." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/7f6hqq.
Full textAbstract:
碩士元智大學
工業工程與管理學系
95
The present paper development the main direction discusses traditional FMEA’s RPN method，The RPN value is calculated by the multiplication of Severity, Occurrence, Detection and comes out to utilize to new product development. Eatablishes the FMEA table list by experience to be the reference direction of new products improvement. But because the traditional FMEA method isn’t treat rejection rate as the reference. So the Top items of return goods always not the critical items be inprovmed in the FMEA table list. This reaserch by traditional FMEA RPN be the base and the standard FMEA edition will do some small develops translates Rejection rate will be a factor and add into RPN’s calculation. Its goal is the hope includes customers’ sound in the consideration scope by FMEA analyzes. The expectation can reduce exterior defeat cost and promote product competitive ability.
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馬福忠. "Improving performance of military construction PCM through FMEA." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/89514214781468859996.
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Lin, Ya-Hui, and 林雅惠. "Empirical Analysis of FMEA and FTA on Reliability." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/43574593265036659302.
Full textAbstract:
碩士國立臺灣科技大學
管理研究所工業管理學程
87
The major objections of this dissertation are two methods of reliability-FMEA (Failure Mode and Effect Analysis) and FTA (Fault Tree Analysis) how to evaluate the failure of the systems, and measure the reliability of the systems. Then we could do to improve the systems by the results of analysis, and to achieve the goal of system design. In chapter 2 and chapter 3, we introduce the basis ideals and methods of analysis of FMEA and FTA. Then, in chapter 4, we use empirical analysis to find out how FMEA evaluate the latent failure mode of system design, what effects on the system, and try to take necessary solutions for the problems of system reliability. On the other side, we discuss how to use FTA to improve the design of the systems, and correct the importance of each component. Finally, we could upgrade FMEA and FTA to the management of economy side. In chapter 5, we will summary our results and make some comments about this research.
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Guan, Jheng-Yu, and 官政宇. "Applying 8D and FMEA in electronic connector improvement." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/20426166188482939817.
Full textAbstract:
碩士國立勤益科技大學
工業工程與管理系
100
Nowadays, the electronics and information industries trend of global competition develops. The manufacturer’s product process requires higher and higher quality in order to conform to the demand of customers. Therefore, under the premise that satisfies the needs of customers and enhances productivity effectively, how to implement and strengthen the methods of quality control to the manufacturing process is the most important issue for enterprise. 8D (8 Disciplines) is a good method to improve some quality problems and is popularly applied to enterprise. Failure Mode and Effects Analysis (FMEA) is an analytical technique that combines the technology and experience of people in identifying the potential failure modes of a product or process and plan for the elimination of these failure causes. FMEA attempts to detect the potential product-related or process-related failure modes. The technique is used to anticipate the cause of failure and prevent them occurring. This research is a case study that uses 8D to find out the roots caused of the defects among place of plastic in the connector for electronic products. Applying 8D step by step and the failure mode and effects analysis find out the defect points and get the great improvement. We use the process capability analysis and statistical analysis to check the before/after improve confirmation and the Importance- Performance Analysis to confirmed the satisfied feedback. Keywords: 8 Disciplines, Failure mode and effects analysis, Electronic Connectors, Importance-Performance Analysis.
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Wen, Ta-Chun, and 温大君. "Novel approaches for reprioritization of failures in FMEA." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/61917783455696008060.
Full textAbstract:
博士國立交通大學
工業工程與管理學系
100
Most current risk assessment methods use the failure mode and effects analysis (FMEA) approach to evaluate the risk of failure. Traditionally, FMEA uses the risk priority number (RPN) to evaluate the risk of failure. However, the RPN method has the serious problem, loses some message which the experts provide to have the valued message, and not consider the ordered weight. In order to improve the method of RPN evaluation, this study proposes two novel approaches. One is integrating 2-tuple and the ordered weighted averaging (OWA) operator in FMEA, and another is integrating 2-tuple and the linguistic ordered weighted geometric averaging (LOWGA) operator in FMEA. The main purpose of this study is to effectively resolve the main shortcomings of RPN evaluation to assure product and process robustness. Two cases of the Color Super Twisted Nematic (CSTN) product design and manufacturing that has been drawn from a professional LCD manufacturer in Taiwan to further illustrate the proposed approaches. After comparing the results that was obtained from the proposed methods with two other approaches, it was found that the proposed approaches do not lose of useful message provided by the experts. Moreover, the proposed methods provided a more accurate and reasonable ranking of the risk of failure.
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Huang, Chun-Lung, and 黃俊龍. "Applying FMEA method to improve product development schedule." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/03534001965763333727.
Full textAbstract:
碩士國立中央大學
工業管理研究所碩士在職專班
96
Due to newly developed technology and product functions upgraded, the life cycle of product becomes short to meet marketing requirement and keep enterprises’ competition. Enterprise must adopt up-to-date technology for new product development to drive new product to market with shortest time. The capability of new product development is very important for enterprise to have the competitions, however, it’s really a complicate system of new product development. Although, new product will bring unlimited business opportunities and appreciable profits, it’s really a tough challenge. We would like to build a mature system of new product development process (NPDP) to control the quality and progress of new product well by applying the concept of Concurrent Engineering (CE) and quality tools for assistance to achieve our target of shortening the period of new product development. In this thesis, we will have a case study of research new product development process from an international company that produce primarily smart phone and try to build a standard process for new product development. We would like to share it with related industry to promote their competitive advantages and profits.
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Li, Yun-ling, and 李芸菱. "A Case Study of FMEA Appling in QS9000." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/5q5r2h.
Full textAbstract:
碩士國立臺灣科技大學
工業管理系
94
QS 9000, the quality control system developed by the US three big car companies ( CRYLSER, FORD, GENERAL ), is a quality guarantee standard which develops in the ISO 9000 foundation, both has included ISO 9001 all requests and contains other requests of the three big companies to suppliers , is a compulsory work standard . In QS 9000, Potential Failure Mode and Effects Analysis (FMEA), holding the pivotal status, one of main core tools and the analysis technique used to confirm the risk credibility, containing the confirmation of product design or the potential failure mode and reason of process, and the valuation to the method creating effects and preventing expiration of effects, and sets up methods determining that which plan to eliminate or reduce defeats is the priority. In this research, it discusses how FMEA evaluates the potential failure mode in the automobile industry component system design by an example, and analyzes RPN aimed at the failure mode, and proposes suggestions to improve, and then do repetitive analysis. In the unceasing circulation, continue to promote the credibility of product design, reduces the rate of mistaking in process or enhances the ability to examine the rate of mistaking, and promote the quality of production.
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Wei, Chih-Ming, and 魏志銘. "Study of FMEA reliability in Server defective products." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/14487967651575842405.
Full textAbstract:
碩士東南科技大學
營建科技與防災研究所在職專班
104
The information industry of Taiwan has entered the era of meagre profit, the information industry industry person must think how to seek survival, create competitive advantage under the environment of competing for so, destabilizing factor, bad to lead or send back goods rate reduce, too can lower costs, raise customer satisfaction and gross profit rate of products. This research will be with one of the biggest information in the world and main supplier of communication products, making a profit glides, regard server host computer board manufacturing as A Company of the main service item and pay probing into for the case year by year. Reason NTF, CID and VID that the host computer board sends back goods that this research utilizes the characteristic to pursue to prove, carry on invalid way and effect analysis (Failure Mode and Effects Analysis, FMEA) ,It is it possible to find out factor on various,and for severity of it, last degree, if you can't survey by degree, estimate whether grade in grades. Adopt the preferential index (RPN) of the risk Assess, classify the highest invalid factor of RPN value as the project improved most preferably. Discover, utilize risk management of the special project to improve countermeasure carrying out and effect according to it. Person who can offer other family property consults the result of this research, except improve and perfect the administrative system, rate, improvement yield rate that the more effectively one reduces the products and sends back goods, improve the international competitiveness of the information industry of Taiwan together.