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提出了计算侧磨钢轨强度的有限元力学模型,采用三维有限元单元,分别对不同侧磨量钢轨和新轨进行强度对比计算⒚为研究曲线轨道钢轨调边使用条件提供了强度方面的依据⒚“,”A FEM model for strength computation of side wear rails is presented. Different kinds of side wear rails are analysed and compared using three dimension elements at FEM. A strength criterion is given for the research project on re used condition for rails on curved line.