Reliability and maintenance for performance-balanced systems operating in a shock environment
Reliability and maintenance for performance-balanced systems operating in a shock environment
复制标题
DOI：
10.1016/j.ress.2019.106705
复制
发表时间：
2020-03
期刊：
影响因子：
--
通讯作者：
Xiaoyue Wang;Xian Zhao;Siqi Wang;Leping Sun
中科院分区：
文献类型：
--
作者：
Xiaoyue Wang;Xian Zhao;Siqi Wang;Leping Sun
由于工程实际应用的需要，平衡系统的研究近年来得到了发展。平衡的概念在不同的角度不同，更多的平衡系统的可靠性问题需要进一步研究。该系统由多个具有两阶段寿命的组件组成。当系统中处于不良运行状态的部件位置集中在某一特定范围内时，部件的高度非均匀运行状态将加速整个系统的失效过程。将这种真实的工程情况解释为系统失去性能平衡，建立了具有三个性能不平衡竞争准则的性能平衡系统。采用两步有限马尔可夫链嵌入方法，推导出冲击环境下部件和整个系统的概率指标。针对该模型设计了组合维修策略，并以最小化平均维修费用为目标建立了优化模型。基于电池组系统的数值算例，验证了性能平衡系统的适用性和所提方法的有效性。
Due to practical engineering applications, the research on balanced systems has moved into development in recent years. The concept of balance differs from various perspectives and more reliability problems on balanced systems need to be further investigated. The system consists of multiple components with two-stage lifetime. When the locations of the components which are in poor operation stage concentrate in a particular range in the system, the high level of non-uniformed operation states of the components would speed up the failure process of the whole system. The interpretation of this real engineering situation is defined as that the system loses the performance balance and then the performance-balanced system with three competing criteria of system performance imbalance is established in this paper. A two-step finite Markov chain imbedding approach is employed to derive probabilistic indices both for components and whole system which operate in a shock environment. A combined maintenance policy is designed for the proposed model and an optimization model is constructed by minimizing mean maintenance cost. Numerical examples based on a battery pack system have served the purpose to present to applicability of the performance-balanced systems and the effectiveness of the proposed approach.