机车车辆转向架构架侧梁的焊接变形有限元分析

天津科技 ›› 2023, Vol. 50 ›› Issue (1): 59-61.

机车车辆转向架构架侧梁的焊接变形有限元分析

孙莉¹, 张腾², 刘晨曦^3,*

1.天津电力机车有限公司天津 300452;
2.核工业西南物理研究院四川成都 610041;
3.天津大学材料科学与工程学院天津 300350

收稿日期:2023-01-09 出版日期:2023-01-25 发布日期:2023-12-27
通讯作者: *

Finite Element Analysis of Welding Deformation of Side Beam of Locomotive and Rolling Stock Bogie Frame

SUN Li¹, ZHANG Teng², LIU Chenxi³

1. Tianjin Electric Locomotive Co.,Ltd.,Tianjin 300452,China;
2. CNNC Southwest Institute of Physics,Chengdu 610041,Sichuan Province,China;
3. School of Materials Science and Engineering,Tianjin University,Tianjin 300350,China

Received:2023-01-09 Online:2023-01-25 Published:2023-12-27

摘要/Abstract

摘要： 对机车车辆转向架构架侧梁的多层多道焊接变形进行模拟,提出一种先局部后整体的固有应变方法,通过局部典型接头的热弹塑性有限元分析得到其固有应变,并将其施加于大型结构上,从而简化了计算流程。模拟结果与实测结果吻合度达到80%,证明该方法能够快速准确地模拟大型构件的焊接变形。

关键词: 大型结构, 焊接变形, 有限元分析, 固有应变

Abstract: The multi-layer and multi-channel welding deformation of the side beam of the locomotive and rolling stock bogie frame is simulated. An intrinsic strain method named of first local and then whole finite element analysis is proposed. The inherent strain of the local typical joint is obtained through the thermal elastoplastic finite element analysis,and applied to the large structure,thus simplifying the calculation process. The coincidence between the simulation results and the measured results is up to 80%,which proves that this method can quickly and accurately simulate the welding deformation of large components.

Key words: large structure, welding deformation, finite element analysis, inherent strain

中图分类号:

TG457.2

孙莉, 张腾, 刘晨曦. 机车车辆转向架构架侧梁的焊接变形有限元分析[J]. 天津科技, 2023, 50(1): 59-61.

SUN Li, ZHANG Teng, LIU Chenxi. Finite Element Analysis of Welding Deformation of Side Beam of Locomotive and Rolling Stock Bogie Frame[J]. TIANJIN SCIENCE & TECHNOLOGY, 2023, 50(1): 59-61.