考虑不完美维修的定期检测与备件策略联合优化

发布时间：2018-11-12 19:07

【摘要】：针对退化过程服从三阶段故障过程的单部件系统提出了定期检测与备件订购策略联合优化.该策略下,根据检测时系统的状态执行不同的维修活动:当系统处于正常状态,不执行任何维修活动;若识别轻缺陷进行不完美维修并采用比例役龄回退模型描述不完美维修效果;若识别严重缺陷则更换系统.当更换系统时需考虑备件状态:若处于存货状态则立即更换,若正处于途中则到货时更换,若未订货需立即订货并在到货时刻更换.考虑所有更新事件采用更新报酬理论建立以最小化单位时间内期望成本为目标的模型,同时优化检测周期和订货点.最后,设计枚举优化算法和离散仿真算法求解模型,并在算例分析中验证模型的有效性和适用性.
[Abstract]:The joint optimization of periodic inspection and spare parts ordering strategy is proposed for a single component system with three stages of failure in degenerate process. Under this strategy, different maintenance activities are performed according to the state of the system when the system is detected: when the system is in a normal state, it does not perform any maintenance activities; If the light defects are identified for imperfect maintenance and the proportional service age regression model is used to describe the imperfect maintenance effect, if serious defects are identified, the system is replaced. When changing the system, the spare parts should be considered: if in stock, immediately, if in transit, when the goods arrive, if not ordered immediately and at the time of arrival. Considering all update events, a model with the aim of minimizing the expected cost per unit time is established by using the update reward theory, and the inspection period and the order point are optimized simultaneously. Finally, the enumeration optimization algorithm and discrete simulation algorithm are designed to solve the model, and the validity and applicability of the model are verified in the example analysis.
【作者单位】：东北大学工商管理学院;东北大学秦皇岛分校;北京科技大学东凌经济管理学院;
【基金】：国家自然科学基金(71701038) 教育部人文社会科学研究项目(16YJC630174) 中央高校基本科研业务费(N152303004) 河北省高等学校科学技术研究项目(QN2017104)~~
【分类号】：F274

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