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工程力学  2013 

铁路钢轨受力分析模型比较研究

DOI: 1000-4750(2013)06-0093-05, PP. 93-97

Keywords: 铁道工程,钢轨,有限元,三维实体,,枕上压力,铁道工程,钢轨,有限元,三维实体,,枕上压力

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Abstract:

为了更准确地分析钢轨应力和列车荷载作用下的受力特性,该文将钢轨看作三维实体,并考虑扣件支承面积的影响,将其视为均布弹簧,建立了更接近实际的力学模型,分析了钢轨在竖向力作用下的应力和位移,并对枕上应力进行了求解,将结果与传统的点支承梁简化模型进行比较,指出了两者之间的相似之处和差异性;同时指出,三维实体方式建模更有利于指导钢轨和轨枕的细部设计。

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