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Dissertations / Theses on the topic 'Machinery - Maintenance and repair'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 January 2023

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1

Gatang'i, Peter Gatheru. "Effective management of machinery in government-operated hospitals." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/1237.

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The methodology and the processes that are followed in the maintenance of government-operated district hospitals in the Eastern Cape Province of South Africa are outlined while the strategies that are employed to roll-out the maintenance plan have been investigated. The challenges in managing hospital maintenance are identified so that it can be improved and advice be given on the strategies currently being used. The objectives of the research were to determine the effectiveness of machinery maintenance in government-operated district hospitals. The study has been carried out by investigating

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2

El, Hayek Mustapha Mechanical &amp Manufacturing Engineering Faculty of Engineering UNSW. "Optimizing life-cycle maintenance cost of complex machinery using advanced statistical techniques and simulation." Awarded by:University of New South Wales. School of Mechanical and Manufacturing Engineering, 2006. http://handle.unsw.edu.au/1959.4/24955.

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Maintenance is constantly challenged with increasing productivity by maximizing up-time and reliability while at the same time reducing expenditure and investment. In the last few years it has become evident through the development of maintenance concepts that maintenance is more than just a non-productive support function, it is a profit- generating function. In the past decades, hundreds of models that address maintenance strategy have been presented. The vast majority of those models rely purely on mathematical modeling to describe the maintenance function. Due to the complex nature of the

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3

Conrad, George R. "Development of course outlines for a maintenance technician training program." CSUSB ScholarWorks, 1985. https://scholarworks.lib.csusb.edu/etd-project/415.

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4

Clark, David. "Terotechnology : its application to the Australian coal mining industry." Thesis, Queensland University of Technology, 1995. https://eprints.qut.edu.au/36236/1/36236_Clark_1995.pdf.

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Tererotechnology evolved between 1970 and 1975. In 1968 PA Management Consultants Ltd., was commissioned by the then Minister of Technology of the UK to carry out a study of engineering maintenance in British manufacturing industry. It reported that:- a) the total direct cost of engineering maintenance was approximately 1, 100 Million Pounds per annum (circa 1968) b) improved productivity of maintenance staff could have led to a reduction in maintenance expenditure of around 250 Million Pounds per annum. c) better maintenance could have saved about 300 Million Pounds per annum of lost pr

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Elwany, Alaa H. "Sensor-based prognostics and structured maintenance policies for components with complex degradation." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/37198.

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We propose a mathematical framework that integrates low-level sensory signals from monitoring engineering systems and their components with high-level decision models for maintenance optimization. Our objective is to derive optimal adaptive maintenance strategies that capitalize on condition monitoring information to update maintenance actions based upon the current state of health of the system. We refer to this sensor-based decision methodology as "sense-and-respond logistics". As a first step, we develop and extend degradation models to compute and periodically update the remaining life

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6

Saxena, Abhinav. "Knowledge-Based Architecture for Integrated Condition Based Maintenance of Engineering Systems." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16125.

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A paradigm shift is emerging in system reliability and maintainability. The military and industrial sectors are moving away from the traditional breakdown and scheduled maintenance to adopt concepts referred to as Condition Based Maintenance (CBM) and Prognostic Health Management (PHM). In addition to signal processing and subsequent diagnostic and prognostic algorithms these new technologies involve storage of large volumes of both quantitative and qualitative information to carry out maintenance tasks effectively. This not only requires research and development in advanced technologies but a

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7

Matejová, Alexandra. "Návrh na zlepšenie starostlivosti o dlhodobý hmotný majetok v strojárenskej výrobe." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2015. http://www.nusl.cz/ntk/nusl-224849.

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This master thesis focuses on the issue of tangible fixed assets management in the company HP spol. s r.o. which manufactures plastic bags and various technical parts. This thesis is based on the current state of the company and with attention to key areas such as care of the tangible fixed assets, organization and operation maintenance. The aim of the company analysis is to identify weaknesses and their resulting opportunities. In the next section are presented solutions to problems which were identified by analysis. Economic evaluation of the proposals with their benefits and timetable is ca

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8

Klopper, Marthinus Ferreira. "The life expectancy of heavy earthmoving equipment on a sand dune mine in a highly corrosive environment." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/80762.

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Thesis (MBA)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT: Richards Bay Minerals (RBM) went through a restructuring process in 2002. The effect that these changes had on the life expectancy of the heavy earthmoving equipment (HEME) at the company’s sand dune mining operation situated at Richard’s Bay on the north coast of KwaZulu-Natal, was unknown. This study explores these, and various other factors, that influence the life expectancy of the HEME in this highly corrosive environment. During the last number of years there has been no equipment replacement philosophy at RBM and this ha

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9

Van, den Berg Gideon. "Hidden Markov models for tool wear monitoring in turning operations." Diss., Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-05302005-114238/.

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10

Tada, Mariko. "Design and development of a standardized Mitsubishi PLC program troubleshooting and repair training manual for machine maintenance personnel at TTAI." Online version, 2004. http://www.uwstout.edu/lib/thesis/2004/2004tadam.pdf.

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11

Skálová, Hana. "Návrhy na zlepšení hospodaření s dlouhodobým hmotným majetkem." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2012. http://www.nusl.cz/ntk/nusl-223653.

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This thesis is focused on analysis of production facilities utilization and maintenance in the company RAMET C.H.M. a.s. located in Kunovice. In this thesis, there is performed the analysis of present property condition, machinery and equipment used within radar antenna production. Within property maintenance, there are introduced planned and unplanned processes of servicing activities and machine and equipment repair. In a part of proposal for solution, there are recommended processes for keeping up production capabilities based on extensive analysis of size property influence on production v

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12

Chaloupková, Veronika. "Návrhy na zlepšení hospodaření s dlouhodobým hmotným majetkem." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2017. http://www.nusl.cz/ntk/nusl-319433.

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This Master thesis deals with the management of long-term tangible property in the company Česko-slezská výrobní, a. s., which is engaged in manufacturing of portable and sanitary cabins. The thesis is divided into three parts. The first part describes the theoretical background, which forms the theoretical base of the whole thesis. The second part is focused on analysis of the current situation of long-term tangible property in the company and property maintenance. The result of the analysis is identification of weaknesses and opportunities for development. In the last part are proposed solut

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13

Leme, Murilo Oliveira. "Metodologia de manutenção preditiva para motores elétricos baseada em monitoramento de variáveis físicas e análise multicritério." Universidade Tecnológica Federal do Paraná, 2017. http://repositorio.utfpr.edu.br/jspui/handle/1/2905.

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Este trabalho apresenta o desenvolvimento de uma metodologia de manutenção preditiva para motores elétricos, que utiliza a técnica de monitoramento de variáveis, transmissão de dados pela rede elétrica (Powerline Communication) e um tratamento com os métodos multicritério para classificação (ELECTRE TRI e AHPSort) e ordenação (ELECTRE II) dos motores que apresentam condição de falha incipiente, além do aproveitamento das instalações elétricas existentes para a aquisição de dados do funcionamento de motores elétricos tais como: tensão, corrente, temperatura e vibração. Essas informações podem s

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14

Joseph, Mathews. "Failure analysis in a paper mill and a coal conveyor system." Thesis, Queensland University of Technology, 1996. https://eprints.qut.edu.au/36003/1/36003_Joseph_1997.pdf.

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This thesis aims at explaining two different methods by which failure analysis can be conducted . The two methods were used in two totally different circumstances. One was the failure study conducted at the Petrie Mill of Australian Paper and the other was a study of conveyor belt failures based on the author's experience at Neyveli Lignite Corporation Limited. The bottom line is to stress the need for separate strategies depending on the nature of industry or the machinery and the importance of documenting the actual Failure Analysis however it may be done. This will help in further de

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15

Carson, Christian Tyler. "DNA viruses and the cellular DNA repair machinery /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2005. http://wwwlib.umi.com/cr/ucsd/fullcit?p3175282.

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Gilk, Jiří. "Návrhy na zlepšení hospodaření s dlouhodobým majetkem." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2012. http://www.nusl.cz/ntk/nusl-223503.

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This dissertation solves the problems with management of capital goods in the company FORMIRA, s.r.o. The dissertation is elaborated from the analysis of present situation in the plant, whereas the heed is oriented to the most important areas, especially the organization and service activity and maintenance of assets. The result of performed analysis is the identification weak points. Proposals are submitted in the second part of the dissertation, in order to solve the problems found by presented analysis. The economical evaluation of the proposals and determinations of assumptions for the app

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17

Černá, Pavlína. "Návrhy na zlepšení hospodaření s dlouhodobým hmotným majetkem." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2014. http://www.nusl.cz/ntk/nusl-224615.

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This thesis focuses on issue of tangible fixed assets management in the company DT – Vyhybkarna a strojirna a.s. in the Prostejov city. This company produces, installs and restores turnout trackwork for railways, trams and underground tracks. The first part of this thesis analyses current situation of tangible assets and its handling, based on the evaluation of the maintenance department. Afterwards it defines weak parts and reveals shortages, on which an improvement suggestions for optimalizing and melioration of that state is made. At the end of this thesis is made an economic evaluation of

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18

Al-kaabi, Hamad A. "Airlines' maintenance, repair and overhaul (MRO) configurations." Thesis, Cardiff University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437225.

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Osman, Mohamud Maria, and Ubilla Fernanda Sanchez. "Ultraljudsutbildningar för medicintekniska ingenjörer : Behovsinventering, inköpsprocedurer och effekter." Thesis, KTH, Medicinteknik och hälsosystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298194.

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Denna studie syftar till att undersöka hur ultraljudsutbildningar för ingenjörer köps in, vad de innehåller, hur de genomförs, utvärderas och vilka resultatutbildningarna leder till. Totalt intervjuades sex sjukhus runt om i Sverige där elva medicintekniska ingenjörer och fyra verksamhetschefer deltog. En kvalitativ metod användes i studien i form av semistrukturerade intervjuer som grund för att analysera frågeställningarna. Resultatet visade att utbildningar köps in i upphandling av nya ultraljudsmaskiner och genomförs under garantiåren. Utbildningarna hålls av leverantörerna och de brukar v

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20

Bridges, Michael R. "Optimally funding Army Installation repair and maintenance activities." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA341063.

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Thesis (M.S. in Operations Research) Naval Postgraduate School, September 1997.<br>"September 1997." Thesis advisor(s): Robert F. Dell. Includes bibliographical references (p. 43-44). Also available online.

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21

Nikou, Vasilios 1972. "Welded repair and maintenance in the space environment." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/91796.

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Thesis (Nav.E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2003.<br>Includes bibliographical references (leaves 73-75).<br>by Vasilios Nikou.<br>Nav.E.<br>S.M.

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22

Kelly, Annette. "Comparative analysis of intermediate level maintenance repair process." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02Jun%5FKelly.pdf.

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23

Jimoh, Mohammed Tajudeen. "A vision for MPC performance maintenance." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4739/.

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Model predictive control (MPC) is an advanced control that has found widespread use in industries, particularly in process industries like oil refining and petrochemicals. Although the basic premise behind MPC is easy to comprehend, its inner workings are still generally viewed or regarded as too advanced for actual plant operator understanding. This lack of understanding is exposed when MPC performance deteriorates sometime after commissioning, as is often the case in some commercially operated process plants. Currently operators might have difficulty over reasoning about MPC performance degr

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Proença, Sara Salgueiro. "Organization of the maintenance : method to implement a maintenance management system and methodology for efficient maintenance on heavy machinery." Master's thesis, Instituto Politécnico de Setúbal. Escola Superior de Tecnologia de Setúbal, 2019. http://hdl.handle.net/10400.26/31375.

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Relatório de Dissertação do Mestrado em Engenharia de Produção<br>Este trabalho dá início à construção de um método para implementação de um sistema de gestão da manutenção e é também um estudo de organização e disponibilidade de máquinas pesadas. A pesquisa tem como fundamento base a manutenção e todas as questões inerentes a esta. Irá descrever e salientar a importância da manutenção e resolução de problemas nos dias de hoje nas empresas. Para o sector específico da manutenção de máquinas pesadas, apresento uma proposta de organização com o objetivo de fazer melhor uso dos recursos humanos

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25

Toves, Peter Rocky. "Evaluating Success Factors in Implementing E-Maintenance in Maintenance, Repair, and Overhaul (MRO) Organizations." ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/767.

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Despite more than a decade-long process to transition aircraft maintenance practices from paper-to electronic-based systems, some organizations remain unable to complete this transition. Researchers have indicated that while organizations have invested resources in technology improvements, there remains a limited understanding of the factors that contribute to effectively managing technology-enabled change. The purpose of this case study was to identify and explore socio-technical (ST) factors that inhibit an effective transition from a paper-based system to an electronic-based system for airc

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Luyt, Leslie. "Automated grid fault detection and repair." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1006693.

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With the rise in interest in the field of grid and cloud computing, it is becoming increasingly necessary for the grid to be easily maintainable. This maintenance of the grid and grid services can be made easier by using an automated system to monitor and repair the grid as necessary. We propose a novel system to perform automated monitoring and repair of grid systems. To the best of our knowledge, no such systems exist. The results show that certain faults can be easily detected and repaired.<br>TeX<br>Adobe Acrobat 9.51 Paper Capture Plug-in

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Shaheen, Fadhel Sulaiman. "Targeting the DNA double strand break repair machinery in prostate cancer." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500921.

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Prostate cancer is the most common cancer in males in western societies. In spite of the successful first line treatment using surgery, radiation therapy, antiandrogen treatment or combination therapy the disease progresses towards a hormone refractory state where the only effective treatment is chemotherapy which prolongs overall survival, however it is not curative. The resistance that hormone refractory disease displays highlights the importance of developing new targeted therapies which may be curative or at least may improve the patient's quality of life and overall survival. Current chem

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Lee, Hock Guan. "A study on predictive analytics application to ship machinery maintenance." Thesis, Monterey California. Naval Postgraduate School, 2013. http://hdl.handle.net/10945/37659.

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Approved for public release; distribution is unlimited<br>Engine failures on ships are expensive, and affect operational readiness critically due to long turn-around times for maintenance. Prior to the engine failures, there are signs of engine characteristic changes, for example, exhaust gas temperature (EGT), to indicate that the engine is acting abnormally. This is used as a precursor towards the modeling of failures. There is a threshold limit of 520 degree Celsius for the EGT prior to the need for human intervention. With this knowledge, the use of time series forecasting technique, to pr

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Gamede, Cyril Vuyani. "Boiler maintenance using expert systems." Master's thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/18798.

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This research explores the application of expert systems to the maintenance of boilers, are as follows: and its main objectives [1] To explore the application of expert systems in the maintenance of boilers. [2] To simplify the task of boiler maintenance with the help of expert systems. [3] To improve the skills of boiler maintenance workers through the knowledge 'captured ' or 'preserved' by expert systems. [4] To minimise errors which may cost time, money, effort and possible risk of injury to boiler maintenance personnel. [5] To develop a prototype expert system which can advise and assist

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Cash, M. Alex. "Detection of turn faults arising from insulation failure in the stator windings of AC machines." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/15460.

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31

Li, Huan. "Damage and repair evolution of cold formed linepipe steel." Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/671/.

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The main aim of this research is to model the internal micro damage accumulated during cold deformation and the degree of reduction of damage that can be achieved by heat treatment of linepipe steel. A set of unified viscoplastic constitutive equations was developed to simulate microstructural evolution and the effect on mechanical properties due to cold deformation followed by annealing. In addition, practical experiments have been performed to validate the constitutive equations. Firstly, the industrial motivation for the project was previewed and damage-modelling techniques were reviewed to

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Haidvogel, Robert F. "The Afloat maintenance Command: organizational and funding issues in Navy ship maintenance, repair, and modernization." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23521.

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Approved for public release; distribution is unlimited<br>The goal of current Navy surface ship maintenance and repair strategy is to sustain readiness and to maximize both combat capability and the amount of time ships are available for employment during their lifetime. The established organizational framework of the Navy to perform this task includes a complex array of activities that are effective overall, but at the expense of efficiency. The current drawdown in budget resources requires that the goals of ship maintenance and modernization be met with improved efficiency. The Afloat Mai

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De, Wet Vorster Hendrik. "An analysis of the effectiveness of the asset maintenance plan at Spoornet : case study : class diesel locomotives (traction and rolling stock)." Thesis, Peninsula Technikon, 2001. http://hdl.handle.net/20.500.11838/1019.

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Thesis (MTech (Business Administration))--Peninsula Technikon, 2001<br>Maintenance of locomotives is the main function of Bellville Locomotive Traction Depot in the Western Cape. Therefore, it is important to have a sound maintenance plan in place, to prevent a negative impact on the availability and reliability of locomotive supply for hauling power to train services. The purpose of the research is to determine the causes of the increased frequency of maintenance through a case study relating to 35-class locomotives. The abnormal increased frequency of wheel change and inter-bogie contr

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An, Wei 1963. "Strengthening of concrete beams with composite plastic plates." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/277246.

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This study investigates the feasibility of strengthening reinforced concrete beams with epoxy-bonded Glass-Fiber-Reinforced-Plastic (GFRP) plates. The composite plate is epoxy-bonded to the tension flange of the beam to increase its stiffness and strength. Seven rectangular and one T-beam, retrofitted with composite plates, were tested to failure under symmetrical 4-point bending. The load versus deflection and the load versus strain in the composite plate, steel rebar and the extreme compression fiber of concrete were measured and plotted for the midspan section throughout the entire range of

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盧英明 and Ying-ming Lo. "Analysis of maintenance service figures of domestic towngas appliance." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B31976645.

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Iu, Lai-ling. "Slope mainteannce [i.e. maintenance] and repair works in Hong Kong." Click to view the E-thesis via HKU Scholars Hub, 2005. http://lookup.lib.hku.hk/lookup/bib/B37935392.

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Aman, Shah Shahani. "System level airborne avionics prognostics for maintenance, repair and overhaul." Thesis, Cranfield University, 2016. http://dspace.lib.cranfield.ac.uk/handle/1826/11844.

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The aim of this study is to propose an alternative approach in prognostics for airborne avionics system in order to enhance maintenance process and aircraft availability. The objectives are to analyse the dependency of avionic systems for fault propagation behaviour degradation, research and develop methods to predict the remaining useful life of avionics Line Replaceable Units (LRU), research and develop methods to evaluate and predict the degradation performances of avionic systems, and lastly to develop software simulation systems to evaluate methods developed. One of the many stakeholders

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Tu, Yu-Chen. "Condition-based maintenance cost model." Diss., Online access via UMI:, 2006.

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Lia, Debora. "Role of alphaOGG1 in the Maintenance of Mitochondrial Physiology." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS125/document.

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Les mitochondries sont des structures uniques dans la cellule mammifère. Ces organites portent leur propre génome (ADN mitochondrial, ADNmt) qui se compose d'une petite molécule qui codifie pour 13 polypeptides de la chaîne de transport d'électrons (ETC), 22 ARNt et 2 gènes d'ARNr pour sa propre synthèse protéique. Le MTDNA est proposé pour être plus susceptible au stress oxydatif que le génome nucléaire (ADNn) parce que non seulement il manque d'histones protectrices, mais aussi en raison de sa proximité avec les complexes ETC qui sont les principaux producteurs de ROS dans les cellules de ma

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Kaiser, Kevin Michael. "A simulation study of predictive maintenance policies and how they impact manufacturing systems." Thesis, University of Iowa, 2007. http://ir.uiowa.edu/etd/152.

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Dietz, Anthony, Eric Friets, William Finger, Jerry Bieszczad, Matt Miller, and Lawrence Freudinger. "ONLINE DISTRIBUTED VEHICLE AND MACHINERY HEALTH MANAGEMENT." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/605375.

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International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>Modern aircraft and space vehicles routinely sense and record vast quantities of information relevant to assessing the vehicles’ health. However, limitations imposed by the bandwidth of telemetry and network connections prevent real-time transmission of the complete data set to central stations for analysis. An online health-management system suitable for bandwidth-limited network environments that enables interrogation of the full data set by ground-based ope

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Emovon, Ikuobase. "Multi-criteria decision making support tools for maintenance of marine machinery systems." Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3280.

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For ship systems to remain reliable and safe they must be effectively maintained through a sound maintenance management system. The three major elements of maintenance management systems are; risk assessment, maintenance strategy selection and maintenance task interval determination. The implementation of these elements will generally determine the level of ship system safety and reliability. Reliability Centred Maintenance (RCM) is one method that can be used to optimise maintenance management systems. However the tools used within the framework of the RCM methodology have limitations which m

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Yearby, Shedrick Dashun. "USMC Aviation Maintenance and Repair Cost for the H-1 Upgrade." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/6891.

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MBA Professional Report<br>Approved for public release, distribution unlimited<br>This research focuses on the Marine Corps Aviation Maintenance and Repair Cost for the H-1 Upgrade platform. Onsite visits with the Program Manager Air 276 (PMA-276), the Naval Supply Weapons Systems Support (NAVSUP WSS), the Defense Logistics Agency (DLA), and Marine Aviation Logistics Squadron 39 (MALS-39) are conducted to obtain information regarding readiness costs and efficiencies that have impacted the total cost for a transitioning aircraft in Marine aviation. PMA-276, NAVSUP WSS, DLA, and MALS-39 make

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Wood, Thomas L. "Evaluation of project selection techniques for pavement network maintenance and repair." Thesis, Monterey, California. Naval Postgraduate School, 1994. http://hdl.handle.net/10945/25909.

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Different approaches have been suggested for determining the optimal mix of repair projects for a pavement network. These methods range from random selection to sophisticated mathematical optimization models. This paper presents an analysis of several questions regarding the effectiveness of three possible selection methods. First, the performance of three separate single year project selection methods on different size networks is assessed over a broad funding spectrum. The results indicate that as funding levels increase, the benefit obtained by different selection methods converge.

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Coxon, W. D. "Evaluation of models for decision making in inspection and repair maintenance." Master's thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/21151.

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There has been growth in the costs of maintenance over the last 40 years. This can be linked directly to the changes in production technology over that period of time. However. there has also been growth in the field of management science and operations research. Many models have been developed to assist the maintenance function in its decisions. However. it would appear from engineering journals and shop floor practice that these models are not well used. For this research the method of inspection and repair maintenance has been chosen. Mainly because it is one of the most widely used methods

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Konda, Issa 1962. "Tractor repair and maintenance costs and management policies in Burkina Faso." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277842.

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Farm machinery management data were collected in Burkina Faso, for the prediction of repair and maintenance costs. Equations were developed to predict repair and maintenance costs of tractors, cane loaders, generators and motorpumps. The analysis of data revealed that tractor repair and maintenance appears a greater burden than predicted by the American and Australian data. Tractor trade-in was not prescribed by the rule of minimum total cost per unit tractor use. Farm machinery and power units were operated more than twice as long as in the United States. New machine purchase was discouraged

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Toledo, Maria Luiza Guerra de. "Determination of the optimal periodic maintenance policy under imperfect repair assumption." Universidade Federal de Minas Gerais, 2014. http://hdl.handle.net/1843/BUOS-9KRG8A.

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An appropriate maintenance policy is essential to reduce expenses and risks related to repairable systems failures. The usual assumptions of minimal or perfect repair at failures are not suitable for many real systems, requiring the application of Imperfect Repair models. In this work, the classes Arithmetic Reduction of Age and Arithmetic Reduction of Intensity, proposed by Doyen and Gaudoin (2004) are explored. Likelihood functions for such models are derived, and the parameters are estimated, allowing to compute reliability indicators to forecast the future behavior of the failure process.

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Peterson, Reginald E. "Exploring Customers' Perceptions of Third Party Maintenance, Repair, and Operating Programs." ScholarWorks, 2016. https://scholarworks.waldenu.edu/dissertations/2170.

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A survey of 25 industrial manufacturing organizations in the U. S. indicated that 70% of respondents experienced dissatisfaction with their outsourcing programs due to unfulfilled expectations, which caused negative continuance intentions. The purpose of this descriptive case study was to explore the experiences of customers who currently use 3PMRO outsourcing programs to determine what factors affect satisfaction levels in the Southern United States. The conceptual framework for this study was the expectancy disconfirmation paradigm, which connects consumer satisfaction level to the fulfillme

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Barnhart, Cynthia. "Investigation of need for organized maintenance." Virtual Press, 1986. http://liblink.bsu.edu/uhtbin/catkey/450777.

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The benefits of maintenance have been known for centuries, and throughout history these benefits have been the basis for much discussion. Recently such benefits have been formally proposed in terms of scheduled or cyclical maintenance programs. These programs have been developed for important historic buildings; yet the same benefits can be applied to any house. This concept is the basis of this thesis.The thesis begins with a discussion of the obvious need for some maintenance program and describes the recent interest of local governments in some form of maintenance planning, discussing the b

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Swanson, Joel R. "An evaluation of employee exposures associated with aircraft paint stripping using methylene chloride at an aircraft maintenance facility." Online version, 1998. http://www.uwstout.edu/lib/thesis/1998/1998swansonj.pdf.

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