讲座题目：《Reliability Evaluation for a Circular Con/k/n:FSystemwith a Novel Differential Repair Policy》

主讲嘉宾：高珊教授

讲座主持：王金亭教授

讲座时间：2025年10月30日（星期四）14：00-16：00

讲座地点：沙河校区学院楼四号楼318会议室

讲座摘要：In many industrial environments, some components fail and cannot be repaired immediately. We propose a novel repair policy for addressing component failure issues in a circular consecutive-k-out-of-n:F (abbreviated as Cir/Con/k/n:F) system. This repair policy assigns preemptive priority for repair to the component whose breakdown results in system failure (called emergency repair), while renders an ordinary repair to the failed components without causing failure of the system. The ordinary repairs are recorded by the repairman in the order of their failure, which is said that the broken components are stored in“orbit”. When the repairman becomes idle, he makes the orbital search for failed ones according to the first-failed-first-repair discipline, which can be interrupted by an emergency repair. We carry on an extensive investigation on reliability and queueing indices of the considered model. Specifically, we present a Cir/Con/2/6: F system as an example to give sensitivity analysis for the reliability performance. Numerical inversion of Laplace transform-Stehfest method is adopted to obtain approximate solutions for reliability function. Furthermore, the minimization problem of the CBR is addressed by adopting sequential quadratic programming algorithm. This study offers new insights into balancing the expected total repair cost and associated benefits in the Cir/Con/k/n:F system.

This talk is based on joint research with Jinting Wang and Qin Chen

嘉宾简介：高珊，阜阳师范大学教授，2011年获中南大学博士学位，2012年至2014年在北京交通大学从事博士后研究。主要研究方向包括随机运筹学、可靠性理论等。近年来，先后主持安徽省自然科学基金面上项目、安徽省高校自然科学重大/重点项目、安徽省高校优秀青年骨干人才国内外访学研修项目、中国博士后科学基金面上项目；主持阜阳市政府—阜阳师范学院科研团队横向合作项目，以及安徽省高等学校省级质量工程精品线下开放课程等多项教学研究项目。科研工作曾三次获安徽省自然科学优秀论文奖，在Reliability Engineering & System Safety、European Journal of Operational Research、IEEE Transactions on Reliability、Annals of Operations Research等运筹与管理、可靠性等领域发表学术论文30余篇.

主办单位：管理科学与工程学院