For the problem of drum brake noise and vibration during braking

through the drum brake frequency excitation force calculation process

the structure of the brake is improved.The finite element and experimental verification of the improve structure brake is carried out

thereby a improved method of drum brake noise and vibration suppression structure is obtained.The results show that the improve structure method of the drum brakes can be improved significantly inhibit brake noise and vibration phenomena

structural improvement previous drum brake shoes and the floor under the excitation force components prone resonance phenomenon

and the improved model structure in the vicinity of the exciting force size and no resonance point

by the improved drum brake test

the test results and simulation results is highly correlated.