空轨道岔梁有限元分析

发布时间：2018-04-16 13:11

本文选题：空轨 + 道岔梁　；参考：《铁道建筑》2017年09期

【摘要】：以中车青岛四方机车车辆股份有限公司的空轨试验线用单开自动道岔梁为例,应用ANSYS软件建立道岔梁的有限元模型,研究道岔梁的自振频率以及在车辆过直线和过曲线状态下道岔梁的强度和刚度。结果表明:道岔梁的一阶自振频率为8.11 Hz,符合中车青岛四方机车车辆股份有限公司企业标准《悬挂式空轨车辆试验线规划方案》的规定;道岔梁最大变形量为21.1 mm,符合《铁路桥涵设计基本规范》(TB 10002.1—2005)的规定;原设计的道岔梁带条形槽的横向加劲板存在严重的应力集中现象,最大集中应力为918.4 MPa,远大于材料容许应力;对道岔梁横向加劲板结构进行改进后,应力集中现象消除,道岔梁最大等效应力符合规范规定。
[Abstract]:Taking the single open automatic switch beam used in the empty rail test line of Qingdao Sifang Locomotive and Rolling Stock Co., Ltd., as an example, the finite element model of the switch beam is established by using ANSYS software.The natural vibration frequency of the switch beam and the strength and stiffness of the switch beam under the vehicle crossing line and curve state are studied.The results show that the first order natural vibration frequency of the switch beam is 8.11 Hz, which is in accordance with the enterprise standard of Qingdao Sifang Locomotive and Rolling Stock Co., Ltd.The maximum deformation of turnout beam is 21.1 mm, which conforms to the stipulation of "basic Code for Railway Bridge and culvert Design" (TB10002.1-2005).The maximum concentration stress is 918.4 MPA, which is much larger than the allowable stress of the material, and the stress concentration phenomenon is eliminated after the improvement of the transverse stiffened plate structure of the switch beam, and the maximum equivalent stress of the switch beam conforms to the specification.
【作者单位】：中铁山桥集团有限公司;西南交通大学机械工程学院;
【基金】：四川省科技计划(2016HH0032)
【分类号】：U213.6;U441

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