摘要
本文根据疲劳破坏的基本特性,利用数理统计方法研究了滚动轴承疲劳寿命的概率分布。K—S检验和χ~2检验均表明滚动轴承疲劳寿命服从三参数Weibull分布,其三个参数互相独立并且不是恒定值,利用本文研究结果可进行滚动轴承疲劳寿命预测,并便于可靠性分析。
In this paper, the probability distribution of fatigue life of ball bearing is researched by mathematical statistics method. The K-S test and x^2 test indicate that the three-parameter Weibull distribtuion is suitable for fatigue life of bearing, the three parameters are independent each other and are not constant. On the basis of research result of this paper, fatigue life of bearing can be predicted and its reliability can be analysed.
关键词
滚动轴承
疲劳寿命
可靠性
rolling bearing
fatigue life
reliability
