【摘要】 为探究SPECT主回转传动齿轮在不同间隙工况下的动力学特性，建立了基于ADAMS的虚拟样机模型。采用多刚体动力学仿真分析方法探究了不同间隙激励下主回转齿轮接触力的变化规律，并采用刚柔耦合动力学分析方法获得了不同间隙工况下最大接触应力的变化规律，最后采用S-N曲线法对主回转齿轮进行了疲劳寿命预测。研究结果为SPECT结构优化设计及运行监测提供了依据。更多还原

【Abstract】 In this article, in order to explore the dynamic characteristics of the SPECT main rotary transmission gear under different clearance conditions, a virtual prototype model is set up based on ADAMS. The multi-rigid-body dynamic simulation is conducted to explore the changes in the contact force on the main rotary gear with different clearance excitations. The rigid-flexible-coupling dynamic analysis is used to work out the variation of the maximum contact stress under different clearance conditions. Finally, the S-N curve method is used to predict the main rotary gear’s fatigue life. The results provide basis for optimizing the design of the SPECT structure and monitoring its operation.更多还原