Reliability analysis of k-out-of-n: G repairable systems considering common cause failure and multi-level maintenance strategy
Reliability analysis of k-out-of-n: G repairable systems considering common cause failure and multi-level maintenance strategy
复制标题
DOI：
10.1177/1748006x221133873
复制
发表时间：
2022-12
期刊：
影响因子：
--
通讯作者：
Qinglai Dong;Pin Liu;Xu-jie Jia
中科院分区：
文献类型：
--
作者：
Qinglai Dong;Pin Liu;Xu-jie Jia
当两个或多个元件由于共同原因而发生故障时，就会发生共同原因故障。出现这种故障的系统往往需要不同的维修员和多级维护策略。研究了考虑共因故障和多级维修策略的n中取k可修系统的可靠性问题。建立了具有多级维修策略的模型，该模型考虑了所有部件和部分部件因共因故障而发生的故障。给出了系统的可用度、平均首次故障时间等可靠性指标。建立了以费用最小为目标的维修优化模型，确定了三级维修策略。文中给出了数值算例，说明了该方法的应用。结果表明，多级维修策略提高了系统的可靠性，降低了共因故障系统的维修成本。
A common cause failure occurs when two or more elements fail due to a shared cause. The system with such failure often needs different repairmen and a multi-level maintenance strategy. The paper studies the reliability of k-out-of-n: G repairable systems considering common cause failure and multi-level maintenance strategy. The models with a multi-level maintenance strategy are established by considering the failure of all and partial components due to common cause failure. The reliability indices of the systems, such as availability and the mean time to first failure, are derived. An optimization maintenance model is established by minimizing the cost, and a three-level maintenance strategy is determined. Numerical examples are provided to illustrate the application. The results show that the multi-level maintenance strategy improves the system reliability and reduces the maintenance costs of systems with common cause failure.