Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Reliability and maintenance"”.
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Stent Reliability and Maintenance: Integrating Probabilistic and Physics-of-Failure Models
… raised new challenges to the failure analysis and reliability study of such new devices. More than one million stents are implanted in human arteries each year. These devices are subject to a wide range of stress due to biological and procedural factors. Fatigue and structural damage can occur …
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A Bivariate Renewal Process and Its Applications in Maintenance Policies
… in operation usually have different performance and effectiveness. In this case the existing models of the univariate measures of system effectiveness are inadequate and incomplete. For example, the univariate availability measures for these same-aged systems are all the same even though with …
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Definition and evaluation of a synthesis-oriented, user-centered task analysis technique: the Task Mapping Model
… system is an aggregate of communicating modules, and there are several different types of communication among these modules (direct, indirect, and global). Therefore, understanding the interfaces among these modules can characterize the system and are a major factor in the system's complexity. …
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Definition and validation of interface complexity metrics
… system is an aggregate of communicating modules, and there are several different types of communication among these modules (direct, indirect, and global). Therefore, understanding the interfaces among these modules can characterize the system and are a major factor in the system's complexity. …
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Accelerated Methods For Determining The Oil Deterioration In An Internal Combustion Engine
… of this investigation is to consider, test and compare methods for extracting lubricating oil for subsequent chemical analysis from an operating internal combustion engine. Following on from the development of the tube base sampling system in the early 198O’s, the project initially concerned …
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Fatigue and fracture reliability and maintainability process for structural systems.
… oscillatory stresses are vulnerable to fatigue and/or fracture failure. But some fatigue and fracture design factors are subject to considerable uncertainty. Therefore, probabilistic and statistical methods are appropriate as tools for making design decisions and reliability assessments of …
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Improving construction machine engine system durability in Latin American conditions
Between 2016 and 2030, the Latin America region needs to spend $7 trillion dollars (Bridging global infrastructure gaps, 2016). Thus, for the foreseeable future, the Latin American market will experience high demand for construction equipment such as backhoes, excavators, crawler-dozers, and …
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As melhores práticas de gestão para a melhoria da fiabilidade operacional
… dos equipamentos em risco de avariar. Tratando-se de um processo produtivo contínuo do tipo flow shop onde a maximização da disponibilidade dos equipamentos é privilegiada o atendimento das notificações efectuadas à manutenção para a detecção de falhas ou para a reparação das avarias segue …