基于EN 13104标准的地铁驱动车轴强度仿真分析

Strength simulation analysis of a metro powered axle based on EN 13104

文章参照EN13104中的材料力学计算方法,对某地铁驱动车轴进行受力分析,在截面尺寸较小、截面弯矩较大、截面突变和过盈配合等区域选取10个危险截面,创新性地引入有限元仿真分析法分别计算出各截面在基础制动载荷工况、牵引载荷工况下的最大应力,并进行强度校核。分析结果显示,各计算截面的最大应力均小于其对应区域的许用应力,即安全系数均大于1。结果表明该车轴强度满足设计要求。

With reference to the material mechanics calculation method in EN13104,stress analysis for a certain powered axle for metro vehicles was carried out.Ten potentially dangerous sections were chosen from areas such as small-section sizes,large bending moments,mutation and interference fit.The finite element simulation analysis method was innovatively introduced to calculate the maximum stress of each section under both local braking load and traction load condition for strength examination.The analysis results showed that the maximum stress of each section was less than its permissible stress,which means that the safety factor is greater than 1,thus convincingly demonstrating that the strength of this powered axle met its design requirements.