上海交通大学学报

上海交通大学学报（自然版） ›› 2019, Vol. 53 ›› Issue (3): 260-268.doi: 10.16183/j.cnki.jsjtu.2019.03.002

• 学报（中文） • 上一篇    下一篇

考虑焊接变形的装配偏差分析在动力集中型动车组中的应用

姚利民1，张道刘2，侯秀娟2，刘涛1，李志敏1   

  1. 1. 上海交通大学 上海市复杂薄板结构数字化制造重点实验室， 上海 200240； 2. 中车唐山机车车辆有限公司， 河北 唐山 063035
  • 出版日期:2019-03-28 发布日期:2019-03-28
  • 通讯作者: 李志敏，男，副研究员，博士生导师，电话(Tel.):021-34206542；E-mail: zmli@sjtu.edu.cn.
  • 作者简介:姚利民(1992-)，男，江苏省扬州市人，硕士生，主要研究方向为产品装配质量控制.
  • 基金资助:
    国家自然科学基金（51775346），中车唐山公司项目（5212302-X514-F1701）

Assembly Deviation Simulation Considering Welding Deformation Applied on Electric Multiple Unit

YAO Limin，ZHANG Daoliu，HOU Xiujuan，LIU Tao，LI Zhimin   

  1. 1. Shanghai Key Laboratory of Digital Manufacture for Thin-Walled Structures, Shanghai Jiao Tong University, Shanghai 200240, China; 2. CRRC Tangshan Co., Ltd., Tangshan 063035, Hebei, China
  • Online:2019-03-28 Published:2019-03-28

PDF (PC)

309

摘要： 焊接是列车车体装配过程中应用最为广泛的连接方式，焊接变形会对动车组装配尺寸精度产生较大的影响.针对动车组侧墙窗口模块焊接装配尺寸控制问题，利用热弹塑性有限元法提取3种典型焊接接头的固有应变，并基于固有应变法得到窗口模块的焊后变形量；结合三维尺寸装配偏差分析，最终给出计及焊接收缩量变化的侧墙窗口模块的偏差结果.将模拟结果与实测数据进行对比分析，结果表明：考虑焊接变形因素的装配偏差模拟结果与实际测量值较为吻合，故该方法可对动车组侧墙窗口模块的焊接装配偏差进行有效且准确的预测.

关键词: 焊接变形, 固有应变法, 有限元模拟, 装配偏差分析, 动车组

Abstract: Welding is the most widely used connection mode in the assembly process of the electric multiple unit (EMU) while the deformation induced by welding will have a great influence on the assembly precision. The influence of welding deformation on the assembly precision of the sidewall window module is discussed in this paper. Firstly, the inherent strain of three typical welded joints in the sidewall window module of the EMU is extracted by the thermal elastic-plastic finite element method. Then, the deformation of the sidewall window module is obtained by the finite element simulation based on the inherent strain method. The obtained deformation is considered as a mean shift to amend the 3D assembly variation simulation results of the window module. Finally, the amended simulation results are compared with the measured data. The simulation results of assembly variation considering welding deformation have a good agreement with the actual measured data which indicates that the proposed method is more accurate and feasible for predicting the assembly variation of the sidewall window module of the EMU.

Key words: welding deformation, inherent strain method, finite element simulation, assembly variation simulation, electric multiple unit (EMU)

中图分类号: