轮式装甲车辆电驱动轮机电耦合动力学建模与振动特性

为获取轮式装甲车辆电驱动轮机电动力学特性，提出考虑轮毂电机和行星齿轮机构耦合影响的动力学建模与分析方法。基于轮毂电机空间电磁力模型，计算得到电机径向力、切向力和转矩脉动，作为电驱动轮机械系统动态激励；建立考虑柔性壳体的行星齿轮机构动力学模型，实现了轮毂电机及行星齿轮机构机电耦合动力学仿真。结果表明：轮式装甲车辆电驱动轮低阶模态主要是全局模态，高阶模态主要是行星传动系统的局部模态；对于系统振动响应，在低转速区电磁激励的高阶次占主因，而在高转速区低阶次激励占主因。

Modeling and Vibration Characteristics of Electromechanical Coupling Dynamics of Wheel Hub Driving System for Wheeled Armored Vehicle

A dynamic modeling and analysis method considering the coupling effect of drive motor and planetary transmission mechanism is proposed to obtain the electromechanical dynamic characteristics of wheel hub driving system. Based on the spatial electromagnetic force model of driving motor，the radial force，tangential force and torque ripple of the motor are calculated as the dynamic excitation of mechanical system of electric driving wheel. A dynamic model of planetary gear mechanism with flexible shell is established for the electromechanical coupling dynamic simulation of driving motor and planetary gear mechanism.The result shows that the low-order modal of the wheel hub driving system is mainly the global modal， and the high-order modal is mainly the local modal of the planetary transmission system. For the vibration response of the system，the high-order electromagnetic excitation is the main cause in the low speed region，while the low-order electromagnetic excitation is the main cause in the high speed region.