基于刚柔耦合动力学的地铁车辆车体振动疲劳研究 柯飙.pdf

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Journal of Mechanical Strength Miner 线性累计损伤理论对车体结构关键焊缝的服役寿命进行预测。
关键词 刚柔耦合 动力学 模态应力恢复法 振动疲劳 寿命预测
中图分类号 U270. 1
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Abstract The vehicle body is an important bearing structure of railway vehicles which can bear dynamic loads from
passengers and bogies． The reliability of the structure is directly related to the service safety of the vehicle．Based on the existing
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vehicle body standard EN12663 this paper firstly studies the static strength and fatigue strength of the vehicle body and
identifies the static weak position of the vehicle body under standard load． In order to further identify the weak position of the
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vehicle body under service conditions a rigid - flexible coupling dynamic model of subway vehicle is established based on the
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