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WU Zhen, WANG Fazhan, AN Gaoling, LIU Taiping, LI Zhen, ZHENG Jianxiao, MA Shan. Research on efficient welding heat source model for large and complex structures[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(10): 61-64.
Citation: WU Zhen, WANG Fazhan, AN Gaoling, LIU Taiping, LI Zhen, ZHENG Jianxiao, MA Shan. Research on efficient welding heat source model for large and complex structures[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(10): 61-64.
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Research on efficient welding heat source model for large and complex structures

  • 1.

    School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

  • 2.

    Weinan Branch' Zoomlion Heavy Industry Science and Technology Co., Ltd., Weinan 714000, China

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  • Received Date: January 11, 2014
    Graphical Abstract
    • Abstract
  • Based on the sectional theory, the segmented moving temperature-controlled volume heat source model was proposed by using weld equivalent temperature as control variables, and it was verified through Q345B flat butt welding model. With calculation time and accuracy as a reference, based on different mesh sizes, the computing efficiency was compared between three kinds of heat source models including the segmented moving temperature-controlled heat source model, the double ellipsoid heat source model and the segmented moving double ellipsoid heat source model. The results showed that the trend of residual stress and deformation of the proposed model was consistent with that of the moving double ellipsoid heat resource model, and its accuracy was similar to that of the segmented moving double ellipsoid heat source model, but the calculation time is shorter. Particularly, the effect was more prominent on the large and complex structures.
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    • References (9)
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