基于时域分析的汇流行星排内齿圈振动仿真与试验研究

Inner Ring Gear Vibration of Confluence Planetary Row Based on Time Domain Analysis Simulation and Experimental Research

针对汇流行星排在履带车辆综合传动装置工作中产生的振动问题,基于动力学传动理论综合考虑时变啮合刚度、扭转刚度、啮合阻尼等因素的影响,建立了汇流行星排齿轮系统直齿轮行星传动的平移-扭转模型,仿真计算分析内齿圈振动位移量与输入转速之间的对应关系。设计并搭建汇流排振动试验台进行200~1 500 r/min转速工况试验,分析了不同转速工况下内齿圈的时域特征与转速的变化规律。研究结果表明:转速越大,汇流行星排的内齿圈振动量越大,转速在200~1 000 r/min时X向与Y向振动变化不明显;在1 000~1 500 r/min时X向与Y向振动更加强烈,模型仿真结果与试验数据变化趋势一致,验证了所建模型的准确性。

In view of the vibration problem caused by the convergence of the planets in the tracked vehicle,the influence of time-varying meshing stiffness,torsional stiffness and meshing damping is considered based on the dynamics drive theory. The translation-torsion model of the system spur gear planetary transmission simulates the correspondence between the vibration displacement of the Inner ring gear and the input speed. The results show that the larger the input speed,the larger the ring gear vibration of the confluent planetary row. The X-direction vibration and Y-direction vibration change are not obvious when the input speed is 200 ~ 1 000 r/min. The X-direction is 1 000 ~ 1 500 r/min. The vibration and Y-direction vibration are more intense,and the model simulation results are consistent with the experimental data change trend,which verifies the reliability of the model.