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通过对护轨垫板的结构及制造工艺进行优化,设计了一种新型整铸护轨垫板,为了确定新型整铸护轨垫板的力学性能是否满足使用要求,以弹性力学有限元法为理论指导,采用ANSYS大型有限元计算软件对该种新型整铸护轨垫板的强度和疲劳性能进行分析。分析结果表明,新型整铸护轨垫板不但克服了旧式整铸垫板和焊接型垫板所存在的应力集中区应力过大的缺陷,同时有效地减小了垫板横向和竖向的位移。在疲劳强度方面也得到了较好的加强,对提高高速铁路列车过岔速度有较明显的作用。
Through the optimization of the structure and manufacturing process of guard rail, a new type of cast iron guard rail was designed. In order to determine whether the mechanical properties of the new type of cast guard rail meet the requirements, the elastic mechanics finite element method Theoretical guidance, the use of ANSYS large finite element software to analyze the strength and fatigue properties of the new cast-in-rail guard plate. The analysis results show that the new cast-in guard rail not only overcomes the defects of over-stress in the stress concentrating area of the old cast plate and welded pad, but also effectively reduces the horizontal and vertical displacement . The fatigue strength has also been better strengthened, to improve the speed of high-speed railway train crossing a more obvious role.