汽车变速箱齿轮可靠性试验数据分布参数估计  

Distribution parameter estimation for the reliability test data of transmission gears

作　　者：姜雪[1] 赵继俊[1] 

机构地区：[1]哈尔滨工业大学船舶工程学院,威海264209

出　　处：《机械设计与制造》2009年第4期21-23,共3页Machinery Design & Manufacture

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.

关 键 词：混合威布尔分布 参数估计 疲劳寿命 

分 类 号：TH132.41[机械工程—机械制造及自动化] O211.31[理学—概率论与数理统计]