Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Tolerance Analysis Method for Spot-welded Deformable Auto Body Parts

점용접되는 차체 부품의 공차 해석 기법

  • So, Hyun-Chul (Department of Mechanical Engineering, Graduate School, Hongik University) ;
  • Kim, Kuk-Saeng (Department of Mechanical Engineering, Graduate School, Hongik University) ;
  • Yim, Hyun-June (Department of Mechanical and System Design Engineering, Hongik University) ;
  • Jee, Hae-Seong (Department of Mechanical and System Design Engineering, Hongik University) ;
  • Park, Bong-Jun (Manufacturing Technical Center, GM DAEWOO Auto & Technology) ;
  • Yoo, In-Suk (Manufacturing Technical Center, GM DAEWOO Auto & Technology)
  • 소현철 (홍익대학교 대학원 기계공학과) ;
  • 김국생 (홍익대학교 대학원 기계공학과) ;
  • 임현준 (홍익대학교 기계.시스템디자인공학과) ;
  • 지해성 (홍익대학교 기계.시스템디자인공학과) ;
  • 박봉준 (지엠대우 자동차 생산기술연구소) ;
  • 유인석 (지엠대우 자동차 생산기술연구소)
  • Published : 2006.03.01
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Abstract

Tolerance analysis of auto body requires the consideration of its compliance because of potentially significant deformation during the spot-weld assembly process. In this paper, a relatively recent method for such analyses is briefly introduced as one can find in the literature. In this method, it is important to take into account of the covariance between the sources of variation as they are closely located, which is the case in most auto body assembly. However, it is often impossible to know such covariance, for example, when a new car is being developed. Therefore, a mechanics-based method is proposed in this paper to estimate the covariance among the sources of variation by finite element analyses and simple statistical computations. The proposed method is illustrated by applying it to a three-dimensional model of real front wheel housing.

Keywords

References

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