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对 18号单开道岔外锁闭装置建立有限元接触计算模型 ,分析心轨的变形对道岔锁闭钩的受力影响 ,给出不同载荷作用下锁闭钩中的应力随车轮行进距离的变化规律。
The finite element contact calculation model is established for the external locking device on the 18th single turnout. The influence of the deformation of the center rail on the locking force of the locking switch of the switch is analyzed, and the change of the stress in the locking hook with the traveling distance of the wheel under different loadings is given law.