Test method of acoustic vibration transfer function of suspension absorber vehicle body attaching points

The invention provides a test apparatus of an acoustic vibration transfer function of suspension absorber vehicle body attaching points. The apparatus comprises a force hammer, a microphone, a data acquisition front end, a processing device, and a tool part, the tool part is arranged on a front suspension absorber and a rear suspension absorber, the free boundary test state of an acoustic vibration test is simulated, and the acoustic vibration transfer functions of the front suspension absorber and the rear suspension absorber are tested by knocking the tool part by the force hammer. According to the usage of the tool part, on one hand, the attaching points of the front suspension absorber and the rear suspension absorber of a test vehicle are close to the boundary condition of the real vehicle and are the same as the CAE simulation boundary condition; on the other hand, the test of the acoustic vibration transfer function in the X, Y and Z directions is facilitated. By employing the test method, the acoustic