部件相依复杂系统可靠性模型及其寿命界限分析

The Reliability Models of System and Limit MTTF with Dependent Components based on Copula

文章应用Copula函数,研究了部件相依的复杂系统可靠性问题,给出了F-G-MCopula函数下一般系统的可靠度、平均寿命、平均寿命误差的表达式,讨论了部件正象限相依下复杂系统的平均寿命与部件独立时系统的平均寿命的关系,并研究了串联与并联系统的界限,通过算例分析了部件相依下对平均寿命的影响程度。

Based on Copuia function,The paper studies systems of reliability with comment components,then solves the probetem about the reliabilties,the average life and the failure rate of systems,and investigetes relation of the average life between depersence and independence with paraller components with the effect of orthant dependence,upper limits of parallet and series system,more-over,analyses the limit of components and the dependerce to the impect of the average life through examples.