| 제목 |
점용접되는 차체 부품의 공차 해석 기법 |
| 분야 |
생산기술 |
| 언어 |
Korean |
| 저자 |
소현철(홍익대학교), 임현준(홍익대학교), 김국생(홍익대학교), 지해성(홍익대학교), 박봉준(지엠대우오토앤테크놀러지), 유인석(지엠대우오토앤테크놀러지) |
| Key Words |
Sensitivity(민감도), Covariance(공분산), Measure point(측정점), Variation(오차), Sources of variation(오차원) |
| 초록 |
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. |
| 원문(PDF) |
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