贮存可用度约束下的可修系统寿命评估与优化  

Life evaluation and optimization for a repairable system under the constraints of storage availability

作　　者：马小兵[1,2] 杨力[1] 

机构地区：[1]北京航空航天大学可靠性与系统工程学院,北京100191 [2]北京航空航天大学可靠性与环境工程技术国防科技重点实验室,北京100191

出　　处：《系统工程与电子技术》2015年第3期572-576,共5页Systems Engineering and Electronics

基　　金：国家自然科学基金(61104133)资助课题

摘　　要：针对长期贮存复杂可修系统的特点,提出一种以可用度为约束的系统贮存寿命评估方法。该贮存系统由三类部件串联构成:第一类部件为高可靠产品,具有给定故障时间分布且不进行检测;第二类部件为等时定检维修产品,且修复如新;第三类部件为定期预防性更换产品,更换周期与检测周期相同。在分析上述三类部件瞬态贮存可用度变化规律基础上,推导了此类系统的平均贮存可用度,并以其作为约束条件,建立了该类系统贮存寿命的评估与优化模型,给出了满足系统寿命最大化的检测与更换策略。According to the character of complex long-term repairable storage systems, a method for evalua ring their storage lives under the restriction oi availability is presented. Such systems are composed of three kinds of serial components. The first kind of component has a high reliability with a given fault time distribution, and there are no inspections scheduled for it. The second kind of component undergoes periodic inspections, and once found failed, it is repaired to a condition as a new one. The third kind of component is preventively replaced periodically with the same cycle as the second kind. By analyzing the transient availability of each component respectively, the average availability of the whole repairable storage system is derived. Using it as a restriction, the evaluation and optimization model for the storage life of the system is established and the optimal maintenance strategy which maximizes the storage life is given.

关 键 词：可修系统 寿命评估 贮存可用度 定期检测 定期更换 

分 类 号：TB114.3[理学—概率论与数理统计]