At the same time, analyze the welding deformation of straight-line segment model of side rail, and compare the results with test data, verify this method is efficient.

同时，针对汽车纵梁部分直线段模型进行焊接变形分析，并与试验数据进行了对比，验证了该方法的有效性。

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This paper discusses vibration test method for urban rail passenger car body structure.

介绍了城市轨道客车车体结构的振动试验方法。

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The paper mainly adopt the method of hertz simulation, and m ak e the test about wheel and rail wear on JD-1 simulative test machine.

通过采用赫兹试验模拟的方法，在JD - 1轮轨模拟试验机上进行了车轮轮对与钢轨磨损的试验研究。

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