摘要
针对工程应用中装备维修和保养两类活动具备不同优先级这一问题,考虑单一维修台可进行维修和保养两类工作,其中维修具有优先权.以多状态温贮备系统为研究对象,采用可近似拟合任意分布的Phase-type(PH)分布构建一种描述能力更强的系统可靠性模型,得出系统稳态可用度、系统故障率、平均故障间隔时间等一系列可靠性指标的解析表达式.最后利用算例验证PH分布的适用性,演示系统可靠性函数随时间的变化趋势,并讨论维修台工作速率对系统故障率、稳态可用度、维修台忙期稳态概率和平均故障间隔时间的影响.算例结果表明,所提模型具有较广泛的应用价值.
Aiming at different priority of equipment preventive maintenance and corrective maintenance in engineering application, this research applyes phase-type distribution to modeling, and investigates a multi-state warm standby system and a single repair facility of the two kinds of service： Preventive maintenance and corrective maintenance with higher priority, and provides an analytic reliability model that is more appropriate to characterize the real situation.Some important reliability features, such as system steady-state availability, system failure rate and mean time between failure（MTBF）, are obtained for certain. Finally, a numerical application is given to illustrate the applicability of Phasetype distribution, and the trend of the system reliability function over time and the influence of the preventive maintenance time and corrective maintenance time on system reliability are discussed, which can demenstrate the strong applied value of the proposed model.
作者
尹东亮
胡涛
陈童
YIN Dong-liang;HU Tao;CHEN Tong(Department of Management Engineering and Equipment Economic,Naval University of Engineering,Wuhan 430033,China)
出处
《控制与决策》
EI
CSCD
北大核心
2018年第11期2029-2036,共8页
Control and Decision
基金
国家自然科学青年基金项目(71501183)
