報告題目：Preventive Maintenance for Heterogeneous Parallel Systems with Two Failure Modes

報告所屬學科：管理科學與工程

報告人：肖輝（西南財經大學）

報告時間：2020年10月20日 08:30

報告地點：騰訊會議 ID 982 974 272

報告摘要：

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.

報告人簡介：

肖輝，博士畢業于新加坡國立大學，現為西南財經大學“光華杰出學者計劃”青年杰出教授。主要從事系統可靠性建模與優化、仿真優化、維修決策分析與優化等方面的研究。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》等管理科學與工程領域國際權威期刊上發表SCI論文35篇。主持國家自然科學基金面上、青年項目，四川省科技廳應用基礎項目、中央高校基本業務經費項目等課題。研究成果先后獲得國際“何潘清漪”優秀論文、四川省第十八次社會科學優秀成果、西南財經大學優秀科研成果等獎勵。現擔任國際知名SCI期刊《Asia-Pacific Journal of Operational Research》、《Journal of Simulation》的副主編，中國工程院院刊《Frontiers of Engineering Management》的特邀通訊專家，以及中國管理科學與工程學會、中國運籌學會可靠性分會等學術團體的理事。