摘要
可修串联系统是一类经典的可靠性模型,在实际系统中较为常见。在假定故障部件不能"修复如新"的条件下,基于几何过程模型研究可修串联系统的最优更换策略。推导出系统经长期运行单位时间内期望效益和期望可用度的表达式,在此基础上以可用度为目标函数,以费用率为约束条件建立维修策略优化模型。给出算例,通过与目前现有结果的比较,验证新模型的合理性。
A series repairable system is one of the classical reliability models and is usually used in practice. An optimal replacement policy for series repairable system is studied assuming that the component after repair is not ＂as good as new＂ by using the geometric process model. The expressions of the longrun expected benefit and the availability per unit time are deduced. Furthermore, the replacement policy model is presented with minimizing the availability rate subject to an appropriate cost rate. Lastly, a numerical example is presented, the results compared with the actual ones approve that the new model is reasonable.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2009年第8期1103-1107,共5页
Acta Armamentarii
关键词
系统评估与可行性分析
串联系统
更新过程
几何过程
不完全维修
更换策略
systematic evaluation and feasibility analysis
series system
renewal process
geometric process
imperfect repair
replacement policy
