Mouse cage elastic support dynamic stiffness test bench based on rotary vibration exciter

The invention relates to a mouse cage elastic support dynamic stiffness test bench based on a rotary vibration exciter. The test bench comprises a support, a bracket, a fixing ring, the rotary vibration exciter and an eddy current displacement sensor. The bracket is used for bearing the mouse cage, the rotary vibration exciter and the eddy current displacement sensor; threaded holes are formed in the axial direction and the radial direction of the fixing ring, the outer surface of the fixing ring is in clearance fit with the inner surface of the mouse cage, and the fixing ring and the mouse cage are assembled by using an inner hexagonal cone end set screw to penetrate through the radial threaded holes of the fixing ring; an inner hexagon screw and a spring washer penetrate through an axial threaded hole of the fixing ring, so that the rotary vibration exciter and the fixing ring are assembled; the bracket is installed on the support, and the eddy current displacement sensor penetrates through the bracket, is