Analysis and Optimize of the Vibration of Mini-Electrical Vehicle Frame

摘要

Geometry model and finite element model of the mini-electrical vehicle frame are constructed by catia and hypermesh. Then, the natural frequency of the lower mode and vibration mode which belong to the electrical vehicle are calculated by radios. At last, comparing with the excitation frequency of the vehicle, the vibration character is analysed, and then the flaw is optimized though the size optimization. At here, we choose the thick of beam to be design variables. After checking the optimal result of the frame, the optimal frame can fulfill the static force requirements of the vehicle. So, the optimization can elevate the natural frequency of the frame, and the frame will perform better vibration character.