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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Thanks to the rapid development of digital technology, novel digital ultrasonic detector is becoming the main method of rail test.

随着数字技术的进步，新型数字式钢轨超声探伤仪将成为我国铁路钢轨检测的主要手段。

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