论文标题

可维修组件的系统动态维护政策,受相互依赖的竞争故障流程约束

Dynamic maintenance policy for systems with repairable components subject to mutually dependent competing failure processes

论文作者

Yousefi, Nooshin, Coit, David W., Xiaoyan, Zhu

论文摘要

在本文中,研究了可维修的多组分系统,其中所有组件都可以在系统中单独维修。 The whole system is inspected at inspection intervals and the failed components are detected and replaced with a new one, while the other components continue functioning.在系统中单独更换组件会使他们的初始年龄在每个检查时间都不同。 Different initial age of all the components have affect on the system reliability and probability of failure and consequently the optimal inspection time, which is for the whole system not individual components.提出了动态维护政策,以根据所有组件的初始年龄找到下一个检查时间。每个组件都考虑了两个降级的竞争失败过程和冲击过程。在我们的论文中,降解过程与冲击过程之间存在相互依赖。 Each incoming shock adds additional abrupt damages on the cumulative degradation path of all the components, and the shock arrival process is affected by the system degradation process.提出了一个现实的数值示例,以说明提出的可靠性和维护模型。

In this paper, a repairable multi-component system is studied where all the components can be repaired individually within the system. The whole system is inspected at inspection intervals and the failed components are detected and replaced with a new one, while the other components continue functioning. Replacing components individually within the system makes their initial age to be different at each inspection time. Different initial age of all the components have affect on the system reliability and probability of failure and consequently the optimal inspection time, which is for the whole system not individual components. A dynamic maintenance policy is proposed to find the next inspection time based on the initial age of all the components. Two competing failure processes of degradation and a shock process are considered for each component. In our paper, there is a mutual dependency between the degradation process and shock process. Each incoming shock adds additional abrupt damages on the cumulative degradation path of all the components, and the shock arrival process is affected by the system degradation process. A realistic numerical example is presented to illustrate the proposed reliability and maintenance model.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源