关键词: 电动汽车, 电驱动总成系统, 随机振动, 仿真分析, 振动实验

Abstract: Vibration is inevitable in the electric vehicle driving process. As the core component of the vehicle, the random vibration performance analysis of electric drive assembly is necessary to ensure the safety traffic. According to the industry standard, the random vibration characteristics of three-in-one assembly structure were analyzed by means of simulation analysis and experimental test. The structural stiffness weakness was identified, and the vibration energy amplification level and mechanism of key parts were explored. With the help of experimental data, the damping parameters of simulation model were modified. The study provides the basis for the vibration resistance level assessment of the electric drive assembly system.

Key words: electric vehicle, electric drive assembly system, random vibration, simulation analysis, vibration experiment