基于Copula函数模型的某自行火炮传动系统可靠性分析

Reliability Analysis of Drive System in Self-propelled Gun based on Copula Model

针对自行火炮传动系统可靠性难以准确预测的问题,引入Copula理论,建立了Gumbel Copula函数模型,确定了自行火炮行程与可靠度之间的动态关系,得到了系统平均寿命;经过与子系统相互独立和完全相关情况的比较,验证了Gumbel Copula函数模型对自行火炮传动系统可靠性预测较好。

The Copula theory is applied when the reliability in drive system of self-propelled gun is difficult to be predicted.The Gumbel Copula function model is established,the dynamic relationships of the self-propelled gun range and reliability is established,and MTTF is obtained by reliability function,compared with the mutual independence and the perfect correlation of subsystem,it had a better prediction of the reliability in drive system of self-propelled gun by Gumbel Copula function model.