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Automotive Engineering ›› 2020, Vol. 42 ›› Issue (12): 1751-1757.doi: 10.19562/j.chinasae.qcgc.2020.12.019

Previous Articles    

Research on the Analysis Method of Welding Spot Layout Robustness Based on Sensitivity Ranking

Song Haisheng1,2, Chen Zhiyong1, Yang Na2, Yang Changhai1, Shi Wenku1   

  1. 1. Jilin University, State Key Laboratory of Automotive Simulation and Control, Changchun 130022;
    2. Technology Development Department, Faw-Volkswagen Automotive Co.,Ltd., Changchun 130022
  • Received:2020-03-23 Online:2020-12-25 Published:2021-01-13

Abstract: In view of the defects of Monte-Calo robustness analysis method commonly used at present for robustness analysis for welding spot layout, i.e. high cost, low efficiency and the heavy dependance of accuracy on sample number, a novel robustness analysis method based on welding spot sensitivity ranking is proposed with Monte-Calo important sampling theory as reference. Taking a domestic light bus as example, two methods are comparatively verified. The results show that the method proposed in this paper has higher efficiency, lower cost and higher accuracy with fewer samples needed compared with Monte-Calo one

Key words: welding spot, layout, robustness, sensitivity ranking