|来源：学院办公室 阅读次数：515 发布时间： 2017-07-14|
报告题目：Reliability Modeling and Optimization for Systems of Degrading Components
报告人：David W. Coit
New system reliability models and analysis tools have been developed for systems of degrading components. System reliability analyses, involving multiple failure processes, are important and challenging research topics, particularly when failure processes, such as degradation processes and random shocks, are competing and dependent. When component degradation models are extended to complex systems with multiple components, different perspectives of dependency are needed for system reliability modeling. In this research, potential dependence patterns are investigated among multiple failure processes within and among components in systems and probabilistic models are developed to assess system reliability performance. For the reliability modeling of complex systems, if one component in the system degrades or fails prematurely, it is possible that other components will also degrade or fail prematurely given the shared working environment, which means component failure times are dependent. Existing system reliability models are extended to perform quantitative analyses for system reliability considering that the damages to the two failure processes caused by shocks are dependent. The research is organized into several scenarios, i.e., dependent failure processes are considered in different ways. Stochastically dependent component degradation processes are also studied, and extended gamma process models are used to model the dependent degradation process. Based on these new reliability models, different maintenance policies are derived to provide cost effective maintenance plans.
David W. Coit博士现为美国罗格斯大学工业与系统工程系教授，主要从事系统可靠性建模及优化，能源系统优化等方面的研究，在国际知名期刊（如Reliability Engineering and System Safety、IEEE Transactions on Reliability等）发表学术期刊论文90篇，国际会议论文90篇，近五年论文总计被引用5028次，H指数为36（Google Scholar统计，2012年至今）；曾主持美国海军/海军航空司令部项目、美国国家科学基金、美国能源部国家能源技术实验室项目、美国陆军研究发展工程中心等重要科研项目共计18项。由于Coit教授在工业工程、能源系统可靠性研究等领域的杰出贡献，曾被多个国际会议邀请做大会特邀报告（Keynote Speaker），并获得可靠性与维修性学术年会（RAMS）P. K. McElroy award，Alain O. Plait award以及Willian A. J. Golomski award等最佳学术讲座和最佳论文奖。Coit教授现担任国际知名期刊IIE Transactions部门主编，Journal of Risk and Reliability副主编以及Reliability Engineering and System Safety、International Journal of Reliability and Quality Performance等著名期刊编委。