为解决我国轨道车辆空气弹簧自由振动测试的关键技术难题,设计了空气弹簧振动试验台,重点介绍了试验台的设计原理与结构组成,并对我国TMT与进口空气弹簧进行了不同垂向载荷、不同振幅的自由振动特性比对试验。结果表明:2种空气弹簧在不同工况下的共振频率、共振倍率等振动特性基本一致。试验台设计达到预期要求,为我国轨道车辆空气弹簧安全和可靠性研究提供了科研平台。 In order to solve the key technical problems of free vibration test of air spring for rail vehicle in China, the air spring vibration test stand is designed. The design principle and structure of the test stand are introduced emphatically. Different vertical loads are applied to TMT and imported air spring in our country, Comparison of Free Vibration Characteristics with Different Amplitudes. The results show that the vibrational characteristics of the two kinds of air springs under different conditions are basically the same. The test bench design meets the expected requirements and provides a scientific research platform for the research on the safety and reliability of air springs for rail vehicles in China.