对称循环应力下构件的疲劳强度条件 式中σmax 代表拉压杆与梁横截面上最大的工作应力。 式中，τmax 代表横截面上的最大切应力。
笔者通过对回转窑的托轮轴进行力学分析，导出托轮轴等效对称循环应力幅的计算方法；
By mechanical analysis of the shaft of supporting wheel, a formula to calculate symmetrical cycle is derived.
采用轴对称模型和有限元方法，模拟了大秦线长大坡道循环制动条件下货车车轮温度和应力场，结果表明车轮高应力区出现在辐板上，现行制动条件下车轮强度满足使用要求。
The temperature and stress field of wagon wheel under the condition of long ramp way cycle braking in Daqin line have been simulated by using FEM and axial symmetry model.
本文用含接触面的循环对称计算模型进行轮盘-叶片组件的统一有限无应力分析。
The integrated finite element stress analysis for a bladed disk assembly has been carried out, using the cyclic symmetric model with contact surfaces.
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