双频激振下带V形缺口轴的疲劳寿命研究

化春键,李冬冬,蒋毅,俞建峰,陈莹

Study on fatigue life of shaft with V-notch under dual-frequency excitation

Chun-jian HUA,Dong-dong LI,Yi JIANG,Jian-feng YU,Ying CHEN

表2 带V形缺口轴疲劳破坏实验结果

Table 2 Experimental results of fatigue failure of shaft with V-notch

序号 θ/(°) r/mm d/mm y/s 1 120 0.2 2 24.2 2 90 0.2 3 13.5 3 90 0.3 2 21.4 4 90 0.4 1 26.2 5 60 0.2 2 21.3 6 120 0.3 1 24.9 7 90 0.3 2 21.2 8 60 0.3 3 16.3 9 90 0.2 1 21.8 10 90 0.4 3 20.1 11 120 0.4 2 27.0 12 90 0.3 2 21.4 13 90 0.3 2 21.2 14 60 0.4 2 26.8 15 90 0.3 2 20.8 16 60 0.3 1 23.4 17 120 0.3 3 17.9