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机械强度可靠度计算的自适应算法
The Adaptive Algorithm for Calculation of the Reliability of Mechanical Stress/Strength Interference
【摘要】 利用8结点Gauss-Lagendre数值积分公式,采用分段积分方法,导出了当强度和应力分别服从威布尔分布和正态分布时计算可靠度的自适应算法.该方法能够根据要求的可靠度精度,自动控制计算次数并能估计计算可靠度的实际误差.
【Abstract】 The calculation method is studied for calculation the reliability of mechanical Stress/Strength Interference.When the strength obeys Weibull distribution and the stress obeys Gauss distribution,the integration interval of calculation reliability is subdivided to some subdomain.In the subdomain of the integration the numerical integration formula of Gauss Lagendre is applied.The adaptive algorithm is presented in this paper at the request of the calculation reliability accuracy,which can autonomously adjudge the calculation number of time. [
【关键词】 机械强度;
可靠度;
威布尔分布;
正态分布;
自适应算法;
【Key words】 mechanical streghth; reliability; weibull distribution; gauss distribution; adaptive algorithm.;
【Key words】 mechanical streghth; reliability; weibull distribution; gauss distribution; adaptive algorithm.;
- 【文献出处】 沈阳工业学院学报 , 编辑部邮箱 ,1997年04期
- 【分类号】TH123.3
- 【下载频次】39