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왕상(Xiang Wang),강은지(Eunji Kang),장희석(Heeseok Chang),이수진(Soojin Lee),최덕준(Dukjun Choi),국무성(Musung Guk),홍태호(Taeho Hong),강희종(Heejong Kang),안영재(Youngjae Ahn) 한국자동차공학회 2014 한국 자동차공학회논문집 Vol.22 No.1
Tolerance accumulation has serious effect on the performance of an assembled body. This paper proposes the method which analyzes tolerance accumulation using Monte Carlo Simulation. This method can predict tolerance distribution of fully assembled body using the dimensional tolerance distribution of each part to be assembled. In this analysis, it is assumed that the tolerance of each part has the nominal distribution or uniform distribution. This analysis method is applied to ECV(External Control Valve), and the accumulated tolerance of the fully assembled ECV is obtained from the analysis. The results show that initial tolerance given to each part do not meet the design requirement of ECV. Hence, the tolerances of each part are modified and the additional analysis with the modified tolerances yields the results which satisfy the design requirements of ECV.