System for testing vibration attenuation of suspension of rail vehicle

The invention relates to a system for testing vibration attenuation of a suspension of a rail vehicle, and belongs to parameter detection equipment of a rail vehicle. The system is designed to meet the requirement for detection of vibration attenuation characteristics of a rail vehicle. The system consists of mobile quick-falling release lifting devices, a China railways high-speed (CRH) bullet train, a falling test ground and rail device and a test system. The mobile quick-falling release lifting device comprises a falling arm assembly, a jack , a manual oil pump and a mobile vehicle; the CRH bullet train comprises a CRH bullet train body, a windshield and a bogie assembly; the falling test ground and rail device mainly comprises a falling test ground and a falling test rail; and the test system comprises a displacement detection system and an acceleration detection system, wherein the displacement detection system consists of a drawing wire encoder, a magnetic stand and a magnetic stand fixed steel plate, and the acceleration detection system consists of an acceleration sensor.