점용접되는 차체 부품의 공차 해석 기법A Tolerance Analysis Method for Spot-welded Deformable Auto Body Parts
- Other Titles
- A Tolerance Analysis Method for Spot-welded Deformable Auto Body Parts
- Authors
- 소현철; 임현준; 지해성; 김국생; 박봉준; 유인석
- Issue Date
- 2006
- Publisher
- 한국자동차공학회
- Keywords
- Sensitivity; Covariance; Measure point; Variation; Sources of variation; 민감도; 공분산; 측정점; 오차; 오차원
- Citation
- 한국자동차공학회 논문집, v.14, no.2, pp.23 - 31
- Journal Title
- 한국자동차공학회 논문집
- Volume
- 14
- Number
- 2
- Start Page
- 23
- End Page
- 31
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/24939
- ISSN
- 1225-6382
- 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.
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Collections - College of Engineering > Department of Mechanical and System Design Engineering > 1. Journal Articles
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