摘要
以某电动车用动力总成为研究对象,结合齿轮动力学与电机电磁学知识,对其在额定转速下的内部动态激励进行理论分析和数值模拟。得到了考虑外电路作用下的电磁激励,包括电磁力和转矩波动,以及齿轮动态啮合激励,包括齿轮时变啮合刚度、误差和啮合冲击激励。研究工作为电动车用动力总成系统动力学分析提供了基础条件。
The vibration and noise characteristics of electric vehicles are quite different from those of internal combustion engines.The calculations of the internal excitations of the motor-reducer integrated drive system are the foundation of dynamic analysis.In this paper,the internal dynamic excitations of a certain electric powertrain in rated revolution are calculated by a theoretical analysis and numerical simulation method on the basis of gear dynamics and electromagnetism,including the electromagnetic radial force,torque ripple and external circuit in the motor,and the gear time varying meshing stiffness,meshing error and meshing impact in the gear system.This research lays the foundation for dynamic analysis of the electric powertrain.
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2014年第3期496-502,591,共7页
Journal of Vibration,Measurement & Diagnosis
基金
国家高技术研究发展计划("八六三"计划)资助项目(2011AA11A265)
国家自然科学基金资助项目(51205290)
中央高校基本科研业务费专项资金资助项目(1700219118)
关键词
动力总成
电磁激励
啮合刚度
啮合误差
啮合冲击
外电路
electric powertrain
electromagnetic excitation
meshing stiffness
meshing error
meshing impact
external circuit
