面向维护的机电设备系统多分布可靠性建模与数值计算  

Modeling and Numerical Calculation of Multi-distribution Reliability of Mechanical and Electronic Systems Undergoing Maintenance

作　　者：岳文辉[1] 刘德顺[1] 陈安华[1] 黄良沛[1] 

机构地区：[1]湖南科技大学机械设备健康维护湖南省重点实验室,湘潭411201

出　　处：《中国机械工程》2008年第13期1513-1517,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50775070);国家安全生产监督管理总局资助项目(06-398);湖南省科技计划资助项目(06JT1034)

摘　　要：基于机电设备系统中零件的失效时间分布密度函数,研究了面向维护的具有多种失效时间分布零件的机电系统服役年限模型,发展了机电设备系统多分布可靠性模型。通过数值计算和理论分析,探讨了零件失效时间分布密度函数以及不同分布的零件比例对系统可靠度的影响规律,这对以可靠性为核心的机电设备系统的维修策略的制定和面向维护的机电设备系统设计具有指导意义。Based on the time-to-failure density function of parts,the average service life and reliability model having multi-distribution of mechanical and electronic systems undergoing maintenance were constructed.By means of numerical calculation and analysis of the reliability and replacement,the influence of the parameters of the time-to-failure density function,and the vary proportions of parts on the reliability for mechanical and electronic systems undergoing maintenance were investigated.It is significant to establish reasonable maintenance policies around the reliability and the design undergoing maintenance of mechanical and electronic systems.

关 键 词：维护 系统服役年限 可靠性 零件替换率 维修成本 

分 类 号：TU283.2[建筑科学—建筑设计及理论]