Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on Weight-reduction Design of a Hybrid Bodyshell Made by Substituting Underframe Material in a Box-type Carbody

Box형 차체의 하부구조를 소재대체 한 하이브리드형 차체의 경량화 설계 연구

  • Cho, Jeong-Gil (Department of Rolling Stock Engineering, Seoul National University of Science & Technology) ;
  • Koo, Jeong-Seo (Department of Rolling Stock Engineering, Seoul National University of Science & Technology) ;
  • Jung, Hyun-Seung (The Railroad Structure Research Division, Korea Railroad Research Institute)
  • 조정길 (서울과학기술대학교 철도차량시스템공학과) ;
  • 구정서 (서울과학기술대학교 철도차량시스템공학과) ;
  • 정현승 (한국철도기술연구원 철도구조연구실)
  • Received : 2011.01.24
  • Accepted : 2011.04.27
  • Published : 2011.09.01
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Abstract

This paper studied on a theoretical approach to predict structural performances and weight -reduction rates of hybrid bodyshells in case that the material of underframe structure is substituted. To choose other light-weight materials to be substituted for the original underframe material, compressive, bending and twisting deformations are considered under constant stiffness and strength conditions, which derive some new weight-reduction indices from a structural performance point of view. Next, these weight-reduction indices were verified using the finite element analyses of some simplified examples. It is shown that the derived indices to estimate the weight-reduction can be utilized as a good criterion for material substitution of the underframe at a basic design stage.

Keywords

References

  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, United Kingdom, 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, Boston, 1983.
  9. G. Lewis, Selection of Engineering Materials, Prentice 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. E. F. Bruhn, Analysis & Design of Flight Vehicle Structures, S. R. Jacobs & Associates, Inc., USA, 1973.
  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.