基于冲击功离散性的曲轴早期疲劳失效评估方法

李向哲, 梁刚, 郑小梅, 徐聪聪, 许金泉

Assessment Method for Early Fatigue Failure of Crankshaft Based on Dispersion of Impact Energy

LI Xiangzhe, LIANG Gang, ZHENG Xiaomei, XU Congcong, XU Jinquan

表3 不同可靠性下的安全系数、早期疲劳失效概率

Tab.3 Safety factors and early fatigue failure probabilities at different reliability levels

X Re/% n Pf/% 0 50.00 1.00 50.00 1.29 90.00 1.21 10.00 2.33 99.00 1.47 1.00 3.00 99.87 1.70 0.13 3.08 99.90 1.73 0.10 3.62 99.99 1.98 0.01