正态型寿命分布设备的可用性分析  

Availability Analysis for Equipment with Normal Life Distribution

作　　者：陈旭[1,2] 张书锋 李岳[1,2] 陈循[1,2] 汪亚顺 CHEN Xu;ZHANG Shufeng;LI Yue;CHEN Xun;WANG Yashun(College of Intelligence Science and Technology,National University of Defense Technology,Changsha 410073,Hunan,China;Science and Technology on Integrated Logistics Support Laboratory,National University of Defense Technology,Changsha 410073,Hunan,China)

机构地区：[1]国防科技大学智能科学学院,湖南长沙410073 [2]国防科技大学装备综合保障技术重点实验室,湖南长沙410073

出　　处：《兵工学报》2024年第3期986-996,共11页Acta Armamentarii

摘　　要：设备可用性的解析计算方法具有过程直接、结果准确的优点,但其建模过程复杂,目前研究相对较少,而多采用随机过程或仿真的方法进行分析。针对寿命服从正态分布的设备,考虑预防性维修与视情维修情形,推导出设备使用可用度与瞬时可用度的解析求解方法,模拟设备的工作与维修过程,构建了设备使用可用度与瞬可时用度的仿真分析方法。采用不同寿命分布参数的设备进行算例验证,结果表明两种方法具有较好的一致性,可为正态型寿命分布设备的预防性维修与视情维修方案评价与优化提供技术途径。Analytical calculation method for the analysis of equipment availability has the advantage of direct deduction process and accurate prediction of results,but it has been rarely reported due to the complexity of modeling process.Current availability analysis is mostly based on stochastic process or simulation methods.Considering preventive maintenance and condition-based maintenance,an analytical calculation method is proposed to calculate the operational availability and instantaneous availability of equipment,of which life is assumed to follow normal distribution.A simulation method is also constructed to determine the operational availability and instantaneous availability by simulating the working and maintenance process of the equipment.The analytical and simulation methods agree well with each other by comparing the availabilities of equipment with several set of different life distribution parameters.The proposed analytical method could provide support for the evaluation and optimization of preventive maintenance and condition-based maintenance schemes for equipment with normal life distribution.

关 键 词：设备 使用可用度 瞬时可用度 预防性维修 视情维修 

分 类 号：TJ07[兵器科学与技术—兵器发射理论与技术]