Academic literature on the topic 'MTM (methods-time measurement)'

Pengukuran kerja merupakan salah satu metode yang dapat digunakan untuk menentukan waktu baku dari suatu pekerjaan. Pada perusahaan penghasil tube lamp diketahui bahwa selama ini terdapat permintaan pelanggan yang tidak terpenuhi dikarenakan tidak adanya waktu dan output baku yang dapat digunakan sebagai acuan dalam melakukan kegiatan produksi. Oleh karena itu, dalam penelitian ini dilakukan pengukuran waktu kerja dengan menggunakan Method Time Measurement (MTM) dan digambarkan pada flow diagram dan operator chart. Berdasarkan hasil analisis pada 11 pekerja di 13 stasiun kerja didapatkan perbedaan antara waktu hasil analisis dengan MTM dan waktu pekerjaan pada kondisi nyata yang direkam dalam video. Selain adanya perbedaan waktu, juga terdapat perbedaan dalam output baku yang dihasilkan, dimana output yang dihasilkan saat ini lebih rendah dibandingkan output baku, sehingga target tidak dapat terpenuhi. Oleh karena itu, dengan penetapan waktu dan output baku ini diharapkan dapat digunakan sebagai acuan dan meningkatkan performansi dari para pekerja untuk memenuhi permintaan pelanggan.

Dieser Beitrag beschreibt eine Möglichkeit, den Faktor Mensch bei der Planung manueller Montagevorgänge in der Mensch-Roboter-Kollaboration (MRK) zu berücksichtigen. Das Ziel ist die echtzeitfähige Prädiktion der Dauer des Montageprozesses auf Mikro-, Meso- und Makro-Ebene der Produktion auf Basis von Methods-Time Measurement (MTM). Darauf aufbauend soll durch Adaption der Montagedauer eine ergonomische Interaktion zwischen Mensch und Roboter geschaffen werden.   This paper describes one way to consider human factors when planning manual assembly processes in human-robot collaboration (HRC). The goal is the real-time prediction of the duration of the assembly process on the micro-, meso- and macro-level of the production based on Methods-Time Measurement (MTM). This prediction is then used for an ergonomic human-robot interaction design by adapting the predicted assembly durations.

This research study assembly process of a study of Wood Joints with Motion Time Study MTM-2 (Methods Time Measurement-2) and DFA (Design for Assembly) an assessment of the ability to assembly in the Feeding and Fitting. with LUCAS Assembly Evaluation Method for the results of the assessment and find the good-bad points of the assessment was applied. Wood Joint Index for this analysis is the feeding and fitting should not exceed 2.5 The pivot of the three groups in terms of feeding Index did not exceed 2.5 The advantages of the assessments, when applied to the wood. In general, the nature of Wood Joints must rely on to tool help in almost all assemble of the joints. Each tool is the difficulty of performing it. And in the Entrance of the parts are in a bad score. Tolerance in the 0.2 to 0.3 mm at the Wood Joint this is limitation is that the scores of these problems. So both of these topics for Wood Joints may be more table to the assessment more accurate and led to the development process for next time.

<p><strong>Purpose:</strong> The article presents a concept of synergy between MTM (Methods Time Measurement) and TWI (Training within the Industry) methods through a case study conducted on elementary logistics processes. MTM brings optimisation into logistics operations and creates quality and efficiency standards. TWI provides the means of application of these standards at work to drive improvement.</p><p><strong>Methodology/Approach:</strong> To show a prospective viability/added value of the MTM and TWI combination, we present a case study involving simple logistics processes. We use the MTM as a standardisation method and the TWI as a variability control and process improvement concept.</p><p><strong>Findings:</strong> The MTM times generally determined as an external regulation, may not reflect the level of skills of workers in a specific company and often create a barrier to internal improvement. The concept of work standardisation based on the MTM method synergised with the TWI creates a dynamic improving system.</p><p><strong>Research Limitation/implication:</strong> Individual variations in the processes need to be accounted for and the terminology of current optimisation method and improvement concept need to be adapted accordingly in the present analysis. The methods of MTM and TWI employed in our study now slowly penetrate the logistics processes.</p><strong>Originality/Value of paper:</strong> The paper introduces a new approach to the methodology of internal logistics improvement. The MTM work standards increase the stability and productivity in logistics. However, they often hinder the change by allowing for only low degree of flexibility. Combining them with the concept of TWI, we can enhance quality and foster the human potential to change.

A folyamatosan változó és növekvő kereslet csökkenti a termékek piacra jutásának idejét, így a termelési rendszer rendkívüli kihívásokkal néz szembe. Fontos feladat ezért, hogy a mérnökök pontosan megtervezzék a szerelési folyamatot, amelyhez segítséget nyújtanak az MTM-módszerek. A tanulmány célja az MTM (Methods Time Measurement) elemző módszer bemutatása, amely a munkafolyamatot alapmozdulatokra bontja, és a mozdulatokhoz meghatározott időértékeket rendel. Az alapvető elképzelés a módszer alkalmazása során az, hogy ha a munkafolyamatot a lehető legkisebb részegységekre bontjuk, ezek időszükséglete az egyéntől nem, csak az alkalmazott módszertől függ. Ennek segítségével a munkafolyamat akár elméletben még a tényleges gyártás előtt leírható, és lehetőség nyílik a folyamatos javításra, fejlesztésre. A módszer használatával egy adott szerelési munkafolyamatot fejlesztettünk, amely a cikkben egy esettanulmányon keresztül bemutatásra is kerül.

Objective: The aim of this article is to analyze the influence of the variability of the standard time in the simulation of the assembly operations of manufacturing systems. Background: Discrete event simulation (DES) has been used to provide efficient analysis during the design of a process or scenario. However, the modeling activities of new configurations face the problem of data availability and reliability when it comes to seeking standard times that are effective in representing the actual process under analysis, especially when the process cannot be monitored. Method: The methods-time measurement (MTM) is used as a source of standard times for simulation. Assembly activities were performed at a Learning Factory facility, which provided the necessary structure for simulating real production processes. Simulation performances using different variability of standard times were analyzed to define the impact of data characteristics. Results: The MTM standard time presented an error of approximately 5%. The definition of the data variability of standard times and the statistical distribution impacts were shown in the simulation results, with errors above 6% being observed, interfering with the model reliability. Conclusion: Based on the study, to increase the adherence of a simulation to represent a real process, it is recommended to use triangular distributions with central values greater than those established via the MTM for the representation of the standard times of new assembly processes or scenarios using DES. Application: The study contributions can be applied in assembly line design, providing a reliable model representing real processes and scenarios.

Obtaining the cycle time of robots mostly comes along with a simulation of the system. Setting up those simulations is time intensive and the costs for corresponding tools are often too high for small and medium sized enterprises. For manual assembly there are systems like MTM (methods-time-measurement) to calculate the cycle time in an easier way without using expensive software. For robotic applications like handling, assembly, welding, machining, and painting, such methods do not exist. This paper describes a method of a robot cycle time estimation. Starting with an analysis of the processes regarding their finite process elements, the robot tasks are divided into general elements and process related elements. In a second step, all elements are analysed regarding their characteristics and described in a mathematical way. Finally, the elements are combined to a calculation system.

This paper discusses the deployment of American-style management systems in Japan after World War Ⅱ. One of the major American management methods implemented in many countries after the war was industrial engineering (IE), an advanced form of scientific management originating in the United States. Such American methods played an important role in production management and rationalization as well as the Ford system. The primary issue was the implementation of the work factor (WF) method and Methods Time Measurement (MTM) for the deployment of IE. Thus, this paper examines the deployment of IEin Japan in relation to the problems of work measurement and method engineering, the role of industrial engineers, and the influence of institutions on the implementation and promotion of IE, such as the Japan Iron and Steel Federation. Through these discussions, this paper clarifies the Japanese characteristics regarding the deployment of IE and their significance.

This thesis shows the results of an experiment in order to test the validity of Methods Time Measurement (MTM) data. MTM, developed in 1948, is one of the most commonly used Predetermined Motion Time Systems to calculate standard time for a task. However, there is limited research on the validity of the MTM data in the literature. Today&rsquo
s technology provides new computerized tools to perform time studies. One of such tools is Real Time Method Study (RTMS). RTMS is a computerized method study tool being developed in METU Technopolis, which uses Image Processing and Machine Learning to conduct time studies automatically. RTMS uses MTM data as a benchmark data to compare observed performance results
therefore validity of MTM data is an important issue for it. In order to test the validity of MTM data an experiment conducted in the Ergonomics Laboratory of the METU Industrial Engineering Department. In this experiment 40 undergraduate students performed four different tasks. These tasks were recorded by a video camera and analyzed frame by frame to calculate normal times for basic motions of MTM. Results are compared with the original MTM data and it is shown that MTM times do not fit the observed data. This study in the end suggests updating MTM data or constructing a new standard time database by using a tool like RTMS.

Orientador: Olivio Novaski
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
Made available in DSpace on 2018-08-03T17:44:04Z (GMT). No. of bitstreams: 1 Sugai_Miguel_M.pdf: 494031 bytes, checksum: 0185658c85f518e2bb3244a68f3f0e86 (MD5) Previous issue date: 2003
Mestrado

Este trabalho apresenta a aplicação de uma metodologia para estudos de postos de trabalho com o objetivo de reduzir desperdícios, aplicar melhorias de layout e consequentemente melhora da ergonomia de um posto de trabalho de uma indústria do ramo automotivo, visando o diagnóstico do processo em questão, encontrando assim, oportunidades para melhoria do mesmo. Para realizar este diagnóstico e identificar as melhorias pretendidas foi utilizada a ferramenta de análise de tempo MTM (Methods-Time Measurement), técnicas de balanceamento, ergonomia e estudo de layout. Atualmente há muitas empresas no mundo que utilizam o MTM (Methods-Time Measurement), que é um sistema de tempos pré-determinados. A eliminação dos desperdícios com a finalidade da redução de tempo é necessária para o aumento da produção que será aplicado em 2012, que tem como objetivo a passagem de 29 veículos por hora para 40 veículos por hora na linha de montagem. Para o estudo de caso, foram selecionados três postos, os quais são nomeados segundo suas operações principais. O primeiro deles, Filme CAPOT, compreende a colocação de filme protetor sobre o capot do veículo na saída da linha de montagem. O segundo, Filme TETO, corresponde à colocação do mesmo filme sobre o teto do veículo. Já o Posto ECOM é onde ocorre a liberação do veículo para comercialização. Utilizando a análise de posto com as ferramentas já listadas, foi possível diminuir o tempo necessário ao operador para que mesmo realize suas atividades e assim aumentar a capacidade produtiva da empresa em 48,9%, ou seja, passa-se de 31,1 para 46,3 veículos por hora. A ergonomia do espaço de trabalho teve sua avaliação global modificada nos postos de colocação de filme de proteção no CAPOT e TETO em função da modificação do layout dos postos propiciando aos operadores menores deslocamentos e posturas de trabalho mais ergonômicas que estão abordadas no corpo do trabalho. Temse também o ganho relacionado ao espaço físico, os três postos utilizavam, juntos, 300,9m do prédio da empresa já na situação proposta necessita-se apenas de 142,6m, uma redução de 52,6%.
This paper presents the application of a methodology for studies of work stations in order to reduce waste, implement improvements to layout and consequently improves the ergonomics of a work station at automotive industry, for the diagnosis of the case in question, finding opportunities for improvement. To make this diagnosis and identify the intended improvements was used a toll for analysis of time called MTM (Methods-Time Measurement), balancing techniques, ergonomics and layout study. Currently there are many companies worldwide that use MTM (Methods-Time Measurement), which is a system of predetermined times. The elimination of waste for the purpose of reducing the time is required for the increased production to be applied in 2012, which intends the passage of 29 vehicles per hour for 40 vehicles per hour on the assembly line. For the case study, we selected three stations, which are named according to their main operations. The first, Filme CAPOT, comprising placing protective film on the top of the vehicle off the assembly line. The second Filme TETO corresponds to placing the same film on the ceiling of the vehicle. Finally the station ECOM is where occurs the release of the vehicle for sale. Using the work station analysis with the tools already listed, it was possible to reduce the time required for the operator to perform the same activities and increase the companys production capacity in 48.9%, from 31.1 to 46.3 vehicles per hour. The ergonomics of the workspace had his overall evaluation changed at the placing protective film on CAPOT and TETO stations, because the modifying the layout of the stations enabling operators to smaller displacements and more ergonomic working postures that are addressed in the body of the work. There is also the gain related to the physical space, the three stations used together 300.9 m of the companys building, and after proposed situation they needs only 142.6 m, a decrease of 52.6%.

As melhorias ao nível dos processos logísticos permitem a redução do tempo total de abastecimento de materiais às linhas produção e uma melhor coordenação entre a logística e a produção. Toda a organização deve encarar a cadeia de abastecimento como um conjunto de processos e operações inter-relacionadas. Assim, a implementação de operações logísticas mais eficientes e otimizadas são imprescindíveis para a redução dos custos logísticos, a melhoria do desempenho e para o aumento do nível de serviço prestado ao cliente. Prevendo o início da produção do novo modelo da marca Volkswagen, em 2017, o número de peças acolhidas nestes processos irá subir abruptamente, pelo que este projeto surge da necessidade de definir os tempos normalizados para auxiliar o custeio dos processos logísticos de abastecimento à linha de produção da Área da Montagem da Volkswagen Autoeuropa. A determinação do tempo normal por embalagem, em cada processo, teve como alicerce fundamental o método MTM-SOL (Methods-Time Measurement - Standard Operations Logistics). Este permite quantificar os tempos de operação, determinar o melhor método de trabalho com vista à obtenção do menor tempo em cada operação e proporcionar a padronização desse método. A sua aplicação deve ser encarada como um processo de melhoria contínua por se adequar aos conceitos de produção Lean. Ao serem sugeridas propostas de melhorias é possível uma comparação entre o estado atual da operação, em termos de processo e cargas de trabalho, e cenários alternativos de alteração de procedimento ou layouts. O estudo é desenvolvido nos três processos logísticos inerentes ao processo geral de abastecimento de peças à linha de produção, como sejam a receção de embalagens (receiving), o seu armazenamento (put-away) e recolha (picking), aplicados aos três tipos de embalagens standard mais movimentadas em armazém. Sugeriram-se propostas de melhorias nas operações para cada processo logístico que, em conjunto, atingem uma redução no tempo total diário de operação de 512,9 minutos, conduzindo a um aumento da eficiência média de balanceamento dos três processos de 68,1% para 78,9%.

Dissertação de mestrado em Engenharia Industrial
Entre as décadas de 1980 e 1990 o cenário do setor de energia elétrica foi marcado por um conjunto de transformações estruturais e tecnológicas que propiciou nos anos subsequentes, uma ampla corrida pela diversificação dos serviços ofertados. A partir desse novo contexto, com o intuito de manter sua competitividade, a empresa objeto desse estudo identificou a necessidade de automação no processo para inovação tecnológica. Dessa forma, o presente trabalho buscou investigar o processo manual de fabricação de tampas de medidores de uma empresa brasileira do setor de serviços de medidores de energia elétrica e, para tal, analisou o processo para o de inovação tecnológica, bem como a sua execução na prática, utilizando como exemplo, o processo de desenvolvimento de um serviço. O problema encontrado na empresa é o fato da necessidade de vários operários para cumprir o tempo de produção, do ser humano não apresentar constância de produção, possibilidade de lesões por esforço repetitivo, entre outros. Após o devido estudo do processo e análise do problema, foi levantada uma proposta para a automação do processo. Encontram-se inseridas num ambiente de contínuas mudanças advindos do aprimoramento de seus produtos e pelas exigências do mercado. Estas modificações implicam na flexibilidade das linhas de produções e alterações em processos, causa de inúmeros obstáculos à performance da produtividade. O foco do estudo é o recurso ao processo de Methods-Time Measurement, um método de medida do trabalho que utiliza tempos previamente estabelecidos para a execução de procedimentos totalmente influenciáveis pelo elemento humano, em um projeto de melhoria numa linha de produção do setor de tampas dos medidores de energia elétrica da empresa, buscando a eliminação de perdas que causam baixa produtividade, que esta comprometendo o cumprimento do plano de produção e a satisfação dos clientes. Na segunda parte teremos uma abordagem ao balanciamento ou programação da produção, a sua complexidade e indicadores a utilizar. A utilização do MTM em conjunto com as Técnicas de balanciamento de linha de produção permitiu fazer correções, com o menor atraso possível, nas condições de operação do processo, buscando manter um desempenho ótimo, analisar os fatores que influenciam na perda de produtividade da linha e identificar as ferramentas adequadas a cada fase. Após o recolhimento de dados do tempo e movimento no stock, foram analisadas as principais causas, identificando alguns problemas de contribuição para perda de produtividade, como falta de padronização nas atividades de setup, excesse de paragens para ajustes do processo manual e aumento dos defeitos de qualidade, utilizando para isso, gráficos de controle e análise de pareto. O planejamento das ações na fase de automação do processo deve como base a reconfiguração do layout da linha, assim como modernização do processo para flexibilização da produção, principal causa das perdas de produtividades. A implementação da linha continua podem trazer benefícios significativos como redução das paragens para ajustes 22 para 6 minutos, redução no nivel de defeitos em aproximadamente 85%. Tais melhorias tambem permitiram uma redução no número de operadores de 3 turnos para 1 em turno comercial.
Between 1980 and 1990 the scenario of the electric energy sector was marked by a series of structural and technological transformations that in the following years led to a broad rush to diversify the services offered. From this new context, in order to maintain its competitiveness, the company object of this study identified the need for automation in the process for technological innovation. Thus, the present work sought to investigate the manual process of manufacturing meter covers of a Brazilian company in the service sector of electric energy meters and, for this, analyzed the process for the technological innovation, as well as its execution in the Practice, using as an example the process of developing a service. The problem found in the company is the fact of the necessity of several workers to fulfill the production time, of the human being does not present constancy of production, possibility of repetitive effort injuries, among others. After due study of the process and analysis of the problem, a proposal was raised for the automation of the process. They are inserted in an environment of continuous changes resulting from the improvement of their products and the demands of the market. These changes imply the flexibility of production lines and changes in processes, causing many obstacles to productivity performance. The focus of the study is the use of the Methods-Time Measurement process, a work measurement method that uses previously established times for the execution of procedures totally influenced by the human element, in an improvement project in a production line of the lids sector Of the company's electric energy meters, seeking to eliminate losses that cause low productivity, which is compromising compliance with the production plan and customer satisfaction. In the second part we will have an approach to the balance or production scheduling, its complexity and indicators to use. The use of MTM in conjunction with the production line balancing techniques allowed us to make corrections, with the least possible delay, in the process operating conditions, seeking to maintain optimal performance, to analyze the factors that influence the loss of line productivity and Identify the appropriate tools for each phase. After collecting time and movement data in the stock, the main causes were analyzed, identifying some contribution problems for productivity loss, such as lack of standardization in the setup activities, excess of stops for manual process adjustments and increase of the defects of Quality, using for this, control charts and pareto analysis. The planning of the actions in the automation phase of the process should be based on the reconfiguration of the layout of the line, as well as modernization of the process to flexibilize production, the main cause of the losses of productivities. Continuous line implementation can bring significant benefits such as reduction of stops for adjustments 22 to 6 minutes, reduction in defects level by approximately 85%. These improvements also allowed a reduction in the number of operators from 3 shifts to 1 in a commercial shift.

The objective of the research presented is to develop and implement an ontological knowledge representation for Methods-Time Measurement assembly time estimation process. The knowledge representation is used to drive a decision support system that provides the user with intelligent MTM table suggestions based on assembly work instructions. Inference rules are used to map work instructions to MTM tables. An explicit definition of the assembly time estimation domain is required. The contribution of this research, in addition to the decision support system, is an extensible knowledge representation that models work instructions, MTM tables and mapping rules between the two which will enable the establishment of assembly time estimates. Further, the ontology provides an extensible knowledge representation framework for linking time studies and assembly processes.