轨道客车空气弹簧扭转试验台的设计及应用研究

Design and Application Research of Railway Vehicles Air Spring Torsion Test Bench

对空气弹簧扭转刚度这一影响轨道车辆通过曲线的重要参数进行研究,简要分析了空气弹簧的结构原理,设计了一套空气弹簧扭转试验台。对试验台的结构与原理进行了介绍,利用该试验台研究了相同垂向载荷条件下不同扭转振幅,以及不同垂向载荷条件下相同扭转角度等工况对空气弹簧扭转刚度的影响,结果表明:在相同垂向载荷条件下,扭转刚度随扭转振幅增加而变小,在相同扭转角度条件下,扭转刚度随垂向载荷增加而变大。试验设计达到预期目的,相应研究成果可为空气弹簧的研发和试验参考。

Torsion stiffness of air spring,the important parameter of influencing railway vehicle curve-passing performance,was researched.The structure principle of air spring was introduced,and an air spring torsion test bench was designed.Based on the test bench,the influence of the conditions of different torsion vibration amplitude under the same vertical load and the same torsion angle under different load on air spring torsion stiffness was studied.The results showed that：under the same vertical load,torsion stiffness was decreasing with the torsion vibration amplitude increasing,while,under the same torsion angle,torsion stiffness was increasing with the vertical load increasing.The research results provided the reference for air spring development and experiment.