吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (6): 1704-1709.doi: 10.13229/j.cnki.jdxbgxb201406026

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Modeling heat source of dynamic welding with local coordinate curve path

XU Tao1, LIU Guang-jie1, 2, GE Hai-chao1, ZHANG Wei1, YU Zheng-lei3   

  1. 1.College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
    2.College of Computer Science and Technology, Changchun Normal University, Changchun 130032, China;
    3.College of Agricultural Engineering,Jilin University,Changchun 130022,China
  • Received:2013-11-21 Online:2014-11-01 Published:2014-11-01

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Abstract: There exist several problems in the production and stress analysis of bogie frame of railway passenger cars. It is very difficult to establish the dynamic welding heat source model and implement the processing. To solve the problems, the theory of space welding path is investigated and the shifting mode of the welding heat source coordinate is defined. Then, the welding heat source coordinate model is established by parameter inputting and operating in software ANSYS. A loading method of the plane curve path, space curve path and bogie frame of passenger car model is proposed. Numerical simulation is used to perform the moving heat source model and welding curve path method, thus to understand the welding process and control the residual stress deformation by choosing reasonable production process. The welding process simulation can be realized efficiently and exactly. Therefore, the theory proposed is of significance in theoretical research and engineering application.

Key words: fluid power transmission and control, welding simulation, heat source model, curving path

CLC Number: 

  • TG441
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