报告题目：Preventive Maintenance for Heterogeneous Parallel Systems with Two Failure Modes

报告所属学科：管理科学与工程

报告人：肖辉（西南财经大学）

报告时间：2020年10月20日 08:30

报告地点：腾讯会议 ID 982 974 272

报告摘要：

Parallel structure is widely used in many industrial systems such as pump system, production systems and computing systems. Designing the optimal maintenance strategy for these parallel systems can minimize the operation cost while achieving a satisfying system availability. Previous studies have proposed various maintenance models for parallel systems. However, little research has considered the multiple failure modes that widely exists in many real industrial systems. This research considers a parallel multi-state system that consists of heterogeneous components subject to two types of failures: a one-stage catastrophic failure and a two-stage delay-time failure. Inspections are conducted periodically to identify the state of each component. Three maintenance policies are studied in this research to meet different performance requirements. To find the optimal inspection interval, we analyze the renewal process of the system to minimize the long-term expected cost per unit time. A simulation procedure is proposed to evaluate the long-term expected cost per unit time. Numerical experiments are carried out to illustrate the applications of the proposed maintenance policies. The discussion provides useful insights on choosing the best policy under different system performance requirements.

报告人简介：

肖辉，博士毕业于新加坡国立大学，现为西南财经大学“光华杰出学者计划”青年杰出教授。主要从事系统可靠性建模与优化、仿真优化、维修决策分析与优化等方面的研究。已在《IEEE Transactions on Automatic Control》、《Automatica》、《IISE Transactions》、《Naval Research Logistics》、《European Journal of Operational Research》、《IEEE Transactions on Reliability》、《Reliability Engineering & System Safety》等管理科学与工程领域国际权威期刊上发表SCI论文35篇。主持国家自然科学基金面上、青年项目，四川省科技厅应用基础项目、中央高校基本业务经费项目等课题。研究成果先后获得国际“何潘清漪”优秀论文、四川省第十八次社会科学优秀成果、西南财经大学优秀科研成果等奖励。现担任国际知名SCI期刊《Asia-Pacific Journal of Operational Research》、《Journal of Simulation》的副主编，中国工程院院刊《Frontiers of Engineering Management》的特邀通讯专家，以及中国管理科学与工程学会、中国运筹学会可靠性分会等学术团体的理事。