摘要
采用威布尔分布和混合威布尔分布对影响齿轮传动疲劳寿命的各随机因素进行描述,用最大似然法进行分布参数的估计,并通过最优化方法求得分布参数的最大似然估计值,取得了正确结果。应用表明,这种方法简单实用。
The Weibull distribution and Weibull distribution are adopted to illustrate the random factors that affect gear fatigue life. Distribution parameters are estimated by using maximum likelihood,and the maximum likelihood values are obtained through optimization methods. It has been shown that the approach described is simple and utilizable ,and th,e value of parameters estimation are accurate and reasonable.
出处
《机械设计与制造》
北大核心
2009年第4期21-23,共3页
Machinery Design & Manufacture
关键词
混合威布尔分布
参数估计
疲劳寿命
Mixed weibull
Distribution pa rameters
Estimation fatigue life
