DAI Zong-liang, LI Xiao-bing, WANG Hui-jie. Multiple performance degeneration reliability evaluation of missile based on Copula function[J]. 2018, 37(3): 65-67+71.
DAI Zong-liang, LI Xiao-bing, WANG Hui-jie. Multiple performance degeneration reliability evaluation of missile based on Copula function[J]. 2018, 37(3): 65-67+71. DOI: 10.13873/j.1000-9787(2018)03-0065-03.
基于Copula函数的导弹多性能退化可靠性评估
摘要
针对导弹系统多性能退化中的各性能参数的关系问题
提出了一种评估导弹多性能退化可靠性的数学模型。根据多性能退化失效机理
建立了多性能退化可靠性模型
利用引入的Copula函数描述各性能之间的关系
建立了基于Copula函数的多性能退化可靠性评估模型
并通过实例仿真对导弹系统的可靠性进行了评估。结果表明:模型在保证准确可信的基础上
有效减小了计算量
为评估系统多性能退化可靠性模型研究提供了一种新方法
具有较好的推广性和实用性。
Abstract
Aiming at problem of relationship between characteristic parameters in multi-performance degradation of missile system
a math model for evaluation of multi-performance degradation reliability of missile is proposed.According to theory of multi-performance degradation failure
model for multi-performance degradation reliability is set up. Use introduced Copula function to depict relationship between performances. Model for evaluation of multi-performance degradation reliability based on Copula function is set up
reliability of missile system is evaluated by example simulation. The result shows that under the premise of assuring accuracy and credibility
the model effectively reduces computation of model for multi-performance degradation reliability. It provides a new method for research on evaluation of multi-performance degradation reliability of system
has good generalization performance and practicability.