Battery failed to work through vibration test as the response exceeded its tolerance. By FEM method,
constrained damping technology was optimized to redesign the battery bracket, and then tests were performed. Results
show that the battery’s times of resonance apex of power spectrum density dropped from 28 to 14 after bracket was
treated by constrained damping layer, and the battery worked successfully, indicating the efficiency of constrained
damping technology when used to isolate vibration for structures such as board and shell.