Research on new test-rig for measuring parameter of railway bogie

In order to ensure the safe and economic operation of the bogie,the new test-rig is researched to measure the parameters of train bogie.For the characterisc of railway bogie,the measuring principle,the main structure and the function of the new test-rig are presented.Furthermore,the mechanical system,hydraulic pressure and control system and the measuring system are designed.Accordingly,the simultaneous measurement of the suspension stiffness and the geometry parameters are successfully carried out.