The numerical method of fatigue analysis based on FEA is discussed. And the evaluation of fatigue life in bolster design has been given using I-DEAS.

• 讨论了基于有限元技术的疲劳分析数值方法，并用I-DEAS的疲劳寿命评估模块对货车转向架的摇枕进行了疲劳寿命评估。