有轨电车6号道岔尖轨转换有限元分析

发布时间：2018-06-23 10:51

本文选题：有轨电车 + 道岔　；参考：《铁道建筑》2017年01期

【摘要】：为研究有轨电车6号道岔尖轨转换规律,应用有限元软件建立了有轨电车槽型轨尖轨转换模型,分析滑床板摩擦系数、钢轨密贴段刚度、扣板横向刚度和抗扭刚度、扣板位置对尖轨转换过程中尖轨牵引点转换力和最大不足位移的影响。结果表明:随着滑床板摩擦系数的增加尖轨牵引点转换力和最大不足位移均增加,大致呈线性增长趋势;尖轨从反位扳到定位时牵引点转换力与密贴段刚度取值无关,尖轨从定位扳到反位时密贴段刚度较小的情况下尖轨牵引点转换力不发生改变,密贴段刚度达到1 000 k N/m并继续增加时尖轨牵引点转换力急剧增加;随扣板横向刚度和抗扭刚度的增大尖轨牵引点转换力增加,不足位移变化较小;扣板距尖轨跟端越远尖轨牵引点所需转换力越大,尖轨最大不足位移越小。
[Abstract]:In order to study the transformation law of the spire of turnout 6 of trolley car, the transformation model of the tram slot rail is established by using the finite element software. The friction coefficient of the slide bed plate, the stiffness of the rail attachment section, the transverse stiffness of the buckle plate and the torsional stiffness are analyzed. The effect of fastener position on the transfer force and maximum insufficient displacement of the spire traction point in the process of spire conversion. The results show that with the increase of the friction coefficient of the slide-bed plate, the transfer force of the traction point and the maximum insufficient displacement of the spire are both increased, and the trend of linear increase is approximately, and the transfer force of the traction point is independent of the stiffness of the dense attachment section when the spire is pulled from the reverse position to the position. When the stiffness of the dense attachment section is small from the positioning to the reverse position, the transfer force of the rail traction point does not change. When the stiffness of the dense attachment section reaches 1 000 KN / m and continues to increase, the transfer force of the sharp rail traction point increases sharply. With the increase of transverse stiffness and torsional stiffness of the fastener, the change of the insufficient displacement is smaller, and the greater the transfer force is, the smaller the maximum insufficient displacement of the spire is.
【作者单位】：西南交通大学高速铁路线路工程教育部重点实验室;
【基金】：国家杰出青年科学基金(51425804)
【分类号】：U213.63;U492.433

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