Reliability analysis and condition-based maintenance of systems with dependent degrading components based on thermodynamic physics-of-failure

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• 作者：Qianmei Feng ; Lei Jiang ; David W. Coit
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：86
• 期：1-4
• 页码：913-923
• 全文大小：937 KB
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Production and Logistics
  Mechanical Engineering
  Computer-Aided Engineering and Design
  
• 出版者：Springer London
• ISSN：1433-3015
• 卷排序：86

文摘

In this paper, we present a new reliability model and a unique condition-based maintenance model for complex systems with dependent components subject to respective degradation processes, and the dependence among components is established through environmental factors. Common environmental factors, such as temperature, can create the dependence in failure times of different degrading components in a complex system. The system under study consists of one dominant/independent component and n statistically dependent components that are all subject to degradation. We consider two aspects that link the degradation processes and environmental factors: the degradation of dominant/independent component is not affected by the state of other components, but may influence environmental factors, such as temperature; and the n dependent components degrade over time and their degradation rates are impacted by the environmental factors. Based on the thermodynamic study of the relationship between degradation and environmental temperature, we develop a reliability model to mathematically account for the dependence in multiple components for such a system. Considering the unique dependent relationship among components, a novel condition-based maintenance model is developed to minimize the long run expected cost rate. A numerical example is studied to demonstrate our models, and sensitivity analysis is conducted to test the impact of parameters on the models.KeywordsDependent degrading componentsEnvironmental factorsPhysics-of-failureThermodynamic studyArrhenius relationshipCondition-based maintenance