WN齿轮副耦合振动及动态应力仿真的研究

The Study of Coupling Vibration and Dynamic Stress Simulation for WN Gear Pair

基于WN弧齿轮传动特征建立了多自由度切-径-轴及系统误差耦合振动动力学模分析型。利用PROE建立齿轮三维实体模型,通过PROE软件和Ansys软件数据接口将WN弧齿轮三维模型导入Ansys软件中进行了3维冲击动力接触模拟分析,利用施加载荷进行了WN弧齿轮的应力分析,仿真出WN齿轮齿面接触的等效应力云图。在ANSYS/LS-DYNA中构建了齿轮钢柔性体动态接触模型,以用于齿轮转动的动态分析,结果表明WN弧齿轮的切向与轴向方向的振动明显大于径向的振动。

Based on double arc gear characteristics and considering system error, a multi-degree-freedom （Tangential -Radial-Axial） coupled vibration dynamics analysis model was established. In this article, we established the three-dimensional solid model by using PROE, imported the arc gear three-dimensional model into Ansys software through the data interface of Ansys software and PROE software and conducted a three-dimensional simulation anasys of the impact of dynamic contact. By applying load, it conducted a stress analysis for double arc gear and gain the double arc gear＇s the effective stress clouds. Meanwhile, the rigid-flexible body of gear dynamic contact model based on ANSYS / LS-DYNA was established and the dynamic simulation anasys for WN gear was analyzed. The results demonstrated that the tangential and axial vibration of double arc gear is significantly greater than the radial vibration.