한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제21권2호
  • /
  • Pages.45-54
  • /
  • 2013
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지
DOI QR코드

DOI QR Code

Cut-out이 있는 Box형 차체의 하부구조 소재대체 경량화 설계 방법

A Weight-reduction Design Method by Underframe Material Substitution in a Box-type Bodyshell with Cut-outs

  • 조정길 (서울과학기술대학교 철도차량시스템공학과) ;
  • 구정서 (서울과학기술대학교 철도차량시스템공학과) ;
  • 정현승 (한국철도기술연구원 신교통연구본부)
  • Cho, Jeonggil (Department of Rolling Stock Engineering, Seoul National University of Science & Technology) ;
  • Koo, Jeongseo (Department of Rolling Stock Engineering, Seoul National University of Science & Technology) ;
  • Jung, Hyunseung (New Transportation Systems Research Center, Korea Railroad Research Institute)
  • 투고 : 2012.02.17
  • 심사 : 2012.08.24
  • 발행 : 2013.03.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, a theoretical weight-reduction method was suggested to substitute an underframe material of a box-type bodyshell having cut-outs with an alternative light-weight material. To utilize the material substitution method previously developed for a box-type hybrid bodyshell not having cut-outs, we derived a box-type baseline model without cut-outs which is similar to the stiffness condition of a box-type bodyshell having cut-outs. To do this, the thicknesses of roof and walls of the baseline model were determined such that the deflection of the baseline model under a distributed vertical load condition is equal to the sum of the theoretical section deflections of the original box model with cut-outs. Next, to derive a hybrid bodyshell by under-frame material substitution, the material substitution method for a box-type hybrid bodyshell without cut-outs was applied to the box-type baseline model. Finally, we compared the FE simulation results of the derived hybrid bodyshells having cut-outs for various materials with the theoretical results of the suggested method, and we obtained their good correlations.

키워드

참고문헌

  1. W. Brocker and R. D. Rosenberger, "Light Weight Potentials in Coach Body Structures of High-speed Trains," Proceedings of WCRR, Vol.D, pp.713-721, 1997.
  2. D. Swan, C. Nev and J. Carruthers, "Affordable Rail Vehicles," Bodyshells Seminar of Advanced Railway Research Center, UK, 1994.
  3. N. Tagawa, H. Yamashiro and K. Kadota, "Development of New Carbody Structure for High Speed Train," Proceedings of the International Conference on Speed-up Technology for Railway and Maglev Vehicles, Vol.1, pp.477-481, 1993.
  4. T. Suzuki, K. Sato and K. Akutsu, "Weight Reduction of a Railway Car Body Shell by Applying New Material," Proceedings of the International Conference on Speedup Technology for Railway and Maglev Vehicles, Yokonamo, Japan, pp.65-72, 1993.
  5. S. Matsuoka and T. Nakumura, "Development of Carbon Fiber Reinforced Plastic Carbody Shell," Proceedings of the International Conference on Speedup Technology for Railway and Maglev Vehicles, Yokonamo, Japan, 1993.
  6. J. S. Koo, "A Study on the Conceptual Design for the Material Substitution of Rolling Stock Structures," Journal of the Computational Structural Engineering Institute of Korea, Vol.17, No.2, pp.171-181, 2004.
  7. J. S. Koo, H. J. Cho, Y. S. Jeon and S. K. Cheong, "A Study on the Conceptual Design of Carbodies with Shell Type Sections for Weight Reduction Using the Material Substitution," Conference Proceedings of Korean Society for Railway, pp.186-186, 2005.
  8. G. Dioter, Engineering Design, a Material and Processing Approach, McGraw Hill, New York, 1983.
  9. G. Lewis, Selection of Engineering Materials, Pratice Hall, Inc., USA, 1990.
  10. M. F. Ashby, Materials Selection in Mechanical Design, Butterworth-Heinemann, Oxford, 1999.
  11. M. F. Ashby, "Multi-objective Optimization in Material Design and Selection," ACTA Materialia Millenium Issue, Vol.48, pp.359-369, 2000. https://doi.org/10.1016/S1359-6454(99)00304-3
  12. J. S. Koo and H. S. Jung, "A Study on Material Substitution Design and Evaluation Method for Structural Components of Rolling Stocks," Transactions of KSAE, Vol.12, No.4, pp.74-84, 2004.
  13. P. Sirisalee, M. F. Ashby, G. T. Parks and P. J. Clarkson, "Multi-criteria Material Selection in Engineering Design," Advanced Engineering Materials, Vol.6, pp.84-92, 2004. https://doi.org/10.1002/adem.200300554
  14. J. S. Koo and H. J. Cho, "A Method to Estimate the Weight-reduction of Hybrid Bodyshells by Material Substitution," The Korean Society for Railway, Vol.9, No.6, pp.635-643, 2006.
  15. J. G. Cho, J. S. Koo and H. S. Jung, "A Study on Weight-reduction Design of a Hybrid Bodyshell Made by Substituting Underframe Material in a Box-type Carbody," Transactions of KSAE, Vol.19, No.5, pp.100-112, 2011.
  16. D. M. Chun, S. H. Ahn and J. D. Jang, "Construction of Web-based Material Database and Case Study of Material Selection for Automotive Engine Pulley," Transactions of KSAE, Vol.14, No.4, pp.107-114, 2006.
  17. T. S. Kwon, H. Y. Lee, K. S. Lee and S. K. Choi, "Bodyshell Strength Analysis for Standard EMU," The Korean Society for Railway, Vol.9, No.6, pp.455-463, 1998.
  18. Radioss for Linear, Altair Engineering Inc., USA, pp.14-24, 2010.
  19. A. Bedford and K. M. Liechti, Mechanics of Materials, Prentice Hall, Inc., USA, 2002.
  20. 스키야마 다케시, 철도차량과 설계기술, 기전연구사, 2005.