Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Tolerance Accumulation Analysis of ECV by Monte Carlo Simulation

몬테칼로 시뮬레이션을 이용한 ECV의 공차누적분석

  • Wang, Xiang (Department of Mechanical Engineering, Myongji University) ;
  • Kang, Eunji (Department of Mechanical Engineering, Myongji University) ;
  • Chang, Heeseok (Department of Mechanical Engineering, Myongji University) ;
  • Lee, Soojin (Department of Mechanical Engineering, Myongji University) ;
  • Choi, Dukjun (Department of Mechanical Design, Gyeonggi College of Science and Technology) ;
  • Guk, Musung (Research Institute, Dongil Machinery) ;
  • Hong, Taeho (Research Institute, Dongil Machinery) ;
  • Kang, Heejong (Research Institute, Dongil Machinery) ;
  • Ahn, Youngjae (Research Institute, Dongil Machinery)
  • 왕상 (명지대학교 기계공학과) ;
  • 강은지 (명지대학교 기계공학과) ;
  • 장희석 (명지대학교 기계공학과) ;
  • 이수진 (명지대학교 기계공학과) ;
  • 최덕준 (경기과학대학교 기계설계과) ;
  • 국무성 (동일기계공업 연구소) ;
  • 홍태호 (동일기계공업 연구소) ;
  • 강희종 (동일기계공업 연구소) ;
  • 안영재 (동일기계공업 연구소)
  • Received : 2013.04.04
  • Accepted : 2013.08.12
  • Published : 2014.01.01
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Abstract

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.

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References

  1. D. J. Choi, Fixture Design and Drawing, pp.50-55, Iljinsa, Seoul, 1993.
  2. H. S. Choi, Theory of Tolerance, pp.40-149, Seongandang, Gyeonggi, Korea, 1993.
  3. H. S. Chang, W. Y. Won, D. J. Choi, J. S. Kim, J. H. Kim, T. H. Nahm and H. J. Kang, "The Effect of Annular Projection Collapse on Tolerance of ECV Assembly," J. of KWJS, Vol.30, No.1, pp.78-84, 2012. https://doi.org/10.5781/KWJS.2012.30.1.78
  4. D. J. Choi, B. C. Son, W. H. Seong and H. S. Chang, "Analysis of Geometric Dimensioning & Tolerancing Propagation using Monte Carlo Simulation," Proceeding of KSME, Vol.2, No.1, pp.850-855, 1995.
  5. Y. W. Bang, D. J. Choi, H. S. Chang and J. S. Yang, "Design of Plasma Cutting Torch by Tolerance Propagation Analysis," J. of KWJS, Vol.18, No.3, pp.122-130, 2000.
  6. T. W. Park and H. S. Sohn, "Quality Improvement of Vehicle Drift Using Statistical Six Sigma Tools," Int. J. Automotive Technology, Vol.6, No.6, pp.625-633, 2005.
  7. C. Y. Lin, W. H. Huang, M. C. Jeng and J. L. Doong, "Study of an Assembly Tolerance Allocation Model Based on Monte Carlo Simulation," J. of Materials Processing Technology, Vol.70, Issues 1-3, pp.9-16, 1997. https://doi.org/10.1016/S0924-0136(97)00034-4
  8. J. K. Tahk, "Accumulated Tolerance Analysis for Optimal Tolerance Design," KSAE Fall Conference Proceedings, pp.1743-1752, 2005.
  9. J. Y. Lee, "Tolerance Analysis of Spline Shaft Assembly," J. of Korea Society of Precision Engineering, Vol.27, No.12, pp.75-83, 2010.
  10. K. W. Chase and W. H. Greenwood, "Design Issues in Mechanical Tolerance Analysis," Manufacturing Review, ASME, Vol.1, No.1, pp.50-59, 1988.
  11. R. Cvetko, K. W. Chase and S. P. Magleby, "New Metrics for Evaluating Monte Carlo Tolerance Analysis of Assemblies," Proceedings of the ASME International Mechanical Engineering Conference and Exposition, 1998.
  12. J. K. Patel, "Tolerance Limits - A Review," Communications in Statistics - Theory and Methods, Vol.15, Issue 9, pp.2719-2762, 1986. https://doi.org/10.1080/03610928608829278