한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제21권3호
  • /
  • Pages.50-57
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  • 2013
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  • 1225-6382(pISSN)
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  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
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용접 순서의 변화에 따른 자동차용 Frame의 변형과 잔류 응력 분석

Deformation and Residual Stress Analysis of Automotive Frame Following as Welding Sequency Variation

  • 박태원 (쌍용자동차 선행해석팀) ;
  • 김기주 (서정대학교 자동차과) ;
  • 원시태 (서울과학기술대학교 기계시스템디자인공학과) ;
  • 한창평 (상지영서대학교 자동차과)
  • Park, Tae Won (CAE Team, Ssangyong Motor Co.) ;
  • Kim, Kee Joo (Department of Automobile Engineering, Seojeong College) ;
  • Won, Si-Tae (Department of Mechanical System Design Engineering, Seoul National University of Science & Technology) ;
  • Han, Chang-Pyung (Department of Automobile Engineering, Sangjiyoungseo College)
  • 투고 : 2012.05.16
  • 심사 : 2012.09.18
  • 발행 : 2013.05.01
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초록

The high temperature thermal attacks in welding can affect the residual stress of a frame for automotive assembly accompanying frame deformation. Also the residual stress can induce the negative effect on durability performance of the automobile. In order to analyze the frame deformation, the simplified test frame which had the similar shape (form) of the real automotive frame was fabricated. The contactless optical 3D scanner was used for the shape difference measurement of the frame between before and after the welding. The FE-model of the test frame was composed and the deformation and residual stress simulation were performed. The simulated results were compared with the measured results for the reference of the frame design following as the variation of welding sequency. The deformation shape of the frame by simulation was in good agreement with that by the experimental measurement. In addition, the optimized welding sequency with reduced deformation after welding could be achieved through these analyses.

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참고문헌

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