无缝道岔钢轨温度力与位移影响因素分析

基于有限单元法的无缝道岔计算理论 ,分析在不同轨温变化情况下无缝道岔中钢轨的受力与变形 ,比较不同号码的可动心轨道岔、固定辙叉无缝道岔的受力与变形特点。探讨道床阻力、扣件阻力、间隔铁阻力以及限位器子母块间隙对钢轨受力与变形的影响。

An analysis of factors affecting temperature stress and displacement of jointless turnouts

Based on finite element computational theory on jointless turnouts, the paper analyzes track stress and track deformation with varying track temperature, and compares the stressing and deforming features of movable\|point frog of different codes with that of jointless turnouts with fixed frog. The paper also explores the impact of track bed resistance, fastening resistance, filler resistance, and spacing between master block and slave block of the limit device on track stress and track deformation.