分布函数的迫近及其在高可靠性评估中的应用  

Approximation of Distribution Function and its Application to the Estimation of High Reliability

作　　者：宫二玲[1] 张金槐[1] 谢红卫[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《电子产品可靠性与环境试验》2010年第3期11-14,共4页Electronic Product Reliability and Environmental Testing

摘　　要：针对高可靠性评估中存在的精度及计算量问题,首先给出了可靠性分布函数的正交多项式序列迫近方法。然后,利用此方法,对并联的指数寿命型系统的可靠性函数进行迫近,所获得的结果易以计算,且具有较高的精度。For addressing the accuracy and calculation problem in reliability estimation, an orthogonal polynomial sequence approximation of the reliability distribution function is presented at first. Then the reliability function of a parallel exponential -life system is approximated using this method. It is shown that the result is quite convenient to compute and has a high precision at the same time.

关 键 词：函数迫近 正交多项式 可靠性评估 指数寿命 

分 类 号：TB114.3[理学—概率论与数理统计]