滚动轴承小样本无失效数据的Bayes可靠性分析

Reliability Analysis About Small Sample Zero Failure Data of Rolling Bearing

采用贝叶斯方法对累积失效概率进行估计,首先用最小二乘法计算出威布尔分布的两个参数,然后利用威布尔分布来计算出其可靠度。通过对一组小样本无失效数据的计算和分析,结果表明此方法符合经验信息,能够满足其性能要求。

This paper utilizes Bayesian methods to estimate the cumulative failure probability.Firstly the least square method is used to calculate the two Weibull distribution parameters,and then Weibull distribution is applied to calculate its reliability.Based on a group of test data calculation and analysis,the results show that this method accords to the information of experience,and is able to meet its performance requirements.