Abstract

The basic dynamic simulation techniques such as full-scale test, computer simulation and hybrid simulation are analyzed, and their application in the development of railway vehicles is enumerated. By sing rollers instead of rails, the track irregularity is simulated via roller motion in vertical and lateral direction, and the track curve is simulated via the different rotation of rollers. Therefore the railway vehicle running simulation is achieved by using roller test rig, The difference and relationship between rail and roller of test rig are given, and the design scheme of the roller rig is put forward according to the definition of the track irregularity. The structure and function of the railway vehicle testing roller rig, which locates in Traction Power State Key Laboratory of Southwest Jiaotong University, are introduced. Based upon the railway vehicle test method using roller rig for hunting stability, running response and curve negotiation, the test errors between railway vehicle on roller rig and on track are obtained via theory analysis. The feasibility and rationality of the railway vehicle test using roller rig are validated.

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