低地板车用牵引拉杆疲劳应力分析测试研究  

Fatigue Stress Analysis Test of Traction Rod for Low Floor Tram

作　　者：张会杰 李天一 贺小龙 罗斌[2] 庄征宇 胡伟辉[2] ZHANG Huijie;LI Tianyi;HE Xiaolong;LUO Bin;ZHUANG Zhengyu;HU Weihui(CRRC Qingdao Sifang Co.,Ltd.,Qingdao 266000,China;Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou 412007,China)

机构地区：[1]中车青岛四方机车车辆股份有限公司,山东青岛266000 [2]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《机械工程师》2019年第11期98-100,共3页Mechanical Engineer

摘　　要：对牵引拉杆的结构及疲劳强度进行分析计算。利用CREO软件对其进行三维建模,采用有限元分析软件ABAQUS对牵引拉杆进行强度分析,其疲劳工况分为3个阶段。研究结果表明:疲劳工况±35 kN下,有限元分析最大应力为35.32MPa,4个测点实际最大应力值为28.35 MPa;疲劳工况±42 kN下,有限元分析最大应力为43.17 MPa,4个测点实际应力最大值为35.28 MPa;疲劳工况±49 kN下,有限元分析最大应力为51.23 MPa,4个测点实际应力最大值为57.96 MPa。对比有限元和实际分析计算结果,整体满足疲劳载荷工况要求。The structure and fatigue strength of the traction rod are analyzed and calculated. The CREO software is used for 3 D modeling. The finite element analysis software ABAQUS is used to analyze the strength of the traction rod. The fatigue condition is divided into three stages. The results show that the maximum stress of finite element analysis is 35.32 MPa under the load of ±35 kN, the actual maximum stress value of four points is 28.35 MPa, and the maximum stress of finite element analysis is 43.17 MPa under the load of ±42 kN. The maximum actual stress of the four measuring points is35.28 MPa;the fatigue stress is ±49 kN, the maximum stress of the finite element analysis is 51.23 MPa, and the maximum actual stress of the four measuring points is 57.96 MPa. Comparing the finite element and the actual analysis and calculation results, the overall requirements of fatigue load conditions are met.

关 键 词：低地板车 牵引拉杆 有限元分析计算 应变试验 疲劳试验 

分 类 号：TG405[金属学及工艺—焊接]