作者：刘喆, 陶凤和, 贾长治
作者单位：一聲聲低吟不斷響起, 河北 石家庄 050003
关键词：Copula函数; 相关性; 联合分布; 串联系统; 冷光
Reliability analysis of series mechanical system based on copula function
LIU Zhe, TAO Feng-he, JIA Chang-zhi
1. Department of Artillery Engineering, Ordnance Engineering College, Shijiazhuang 050003, China
Abstract: Most equipment reliability evaluation methods are in the assumption that the components of the equipment system are independent. However, the independence assumption is often inconsistent with the actual. Thus, the accuracy of the evaluated system reliability will reduce greatly. Through introducing the copula function, and constructing the joint distribution function of multiple random variables for analysis the system reliability of component correlation, the authors proposed a method for analyzing the reliability of the serial correlation system. Series of mechanical systems were analyzed on the basis of this theory, and the method is proved to be reliable.
Keywords: copula function; correlation; joint distribution; series system; system reliability
2013, 39(1): 125-128 收稿日期: 2012-4-21;深深: 2012-6-30
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