Automobile modal test sample installation platform

Disclosed is an automobile modal test sample installation platform. A test unit installation beam is mounted on a support frame and provided with a device capable of fixing a suspension device which is connected to a to-be-tested sample, and a vibration exciter is installed on a vibration exciter installing and adjusting flat rack and connected to the to-be-tested sample via a vibration exciter rod. The platform is convenient for installing the to-be-tested sample, capable of adjusting rigidity and damping of a suspension system, adjusting the length, the width and the height according to overall dimensions of a test subject, and flexibly adjusting top and bottom positions and angles of vibration exciter installation by means of the vibration exciter installing and adjusting flat rack. Compared with the prior art, the platform has the advantages of light weight, simple and stable structure, flexibility and changeability, easy adjustment, wide application range, capability of being relatively well applicable t