Vehicle High-speed Drive Motor Vibration Fixture Design and Simulation Analysis
Abstract
The new energy vehicle drive motor has a trend of high rotating speed. The vibration test of high speed motor has a close influence on NVH performance, so the vibration fixture design of high speed and high torque motor is very important. Taking the drive motor vibration fixture of electric vehicle as the main object of study, and analyzing the dynamic characteristics of vibration fixture. The vibration fixture is modelled by computer aided design, three-dimensional modeling. According to the mode of the test fixture on the vibration table, the finite element analysis was used for modal analysis of the fixture. Optimizing the structure design, and improving the first natural frequency of vibration fixture. Finally, get a vibration fixture structure with natural frequency far away from the frequency of excitation signal to ensure the drive motor vibration test smoothly. The problem of sample failure and damage caused by resonance is solved.
Keywords
Drive motor, Vibration fixture, Finite element analysis, Natural frequency
DOI
10.12783/dtcse/cmsam2018/26517
10.12783/dtcse/cmsam2018/26517
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