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3D/1D 하이브리드 유한요소 모델을 이용한 동력 분산형 차세대 고속열차 전체차량의 충돌 해석

Collision Analysis of the Next Generation High-speed EMU Using 3D/1D Hybrid FE Model

  • 김거영 (서울과학기술대학교 철도차량시스템공학과) ;
  • 구정서 (서울과학기술대학교 철도차량시스템공학과)
  • Kim, Geo-Young (Department of Rolling Stock System Engineering, Seoul National University of Science & Technology) ;
  • Koo, Jeong-Seo (Department of Rolling Stock System Engineering, Seoul National University of Science & Technology)
  • 투고 : 2011.03.25
  • 심사 : 2011.11.03
  • 발행 : 2012.05.01

초록

In this paper, collision analysis of the full rake for the Next Generation High-speed EMU is conducted using a 3D/1D hybrid model, which combines 3-dimensional (3D) front-end structure of finite element model and 1-dimensional (1D) multi-body dynamics model in order to analyze train collision with a standard 3D deformable obstacle. The crush forces, passengers' accelerations and energy absorptions of a full rake train can be easily obtained through a simulation of a 1D dynamics model composed of nonlinear springs, dampers and masses. Also the obtained simulation results are very similar to those of a 3D model if an overriding behavior does not occur during collision. The standard obstacle in TSI regulation has been changed from a rigid body to a deformable body, and therefore 3D collision simulations should be conducted because their simulation results depends on the front-end structure of a train. According to the obstacle collision analysis of this study, the obstacle collides with the driver's upper structure after overriding over the front-end module. The 3D/1D hybrid model is effective to evaluate a main energy-absorbing module that is frequently changed during design process and reduce the need time of the modeling and analysis when compared to a 3D full car body.

키워드

참고문헌

  1. G. Y. Kim, H. J. Cho and J. S. Koo, "A Study on Conceptual Design for Crashworthiness of the Next Generation High-speed EM," The Korean Society for Railway, Vol.11, No.3,pp.300-310, 2008.
  2. G. Y. Kim, H. J. Cho, J. S. Koo and T. S. Kwon, "A Derivation of the Standard Design Guideline for Crashworthiness of High Speed Train with Power Cars," Transactions of KSAE, Vol.16, No.6, pp.157-167, 2008.
  3. Ministry of Construction and Transportation, Korean Rolling Stock Safety Regulation, MOCT Notification, No.2007-278, 2007.
  4. AEIF/TSI Technical Specification for Interoperability Relating to the Rolling Stock Subsystem of the Trans-european High-speed Rail System, Regulation No.2008/232/EC, Official Journal of the European Union, 2008.
  5. H. S. Han and J. S. Koo, "Simulation of Train Crashes in Three Dimension," The Korean Society for Railway, Vol.5, No.3, pp.187-195, 2002.
  6. P. G. Llana, "Structural Crashworthiness Standard Comparison: Grade-crossing Collision Scenarios, Proceeding of RTDF2009," ASME Rail Transportation Division Fall Technical Conference, Ft. Worth, Texas, USA, RTDF 2009-18030, pp.20-21, 2009.
  7. X. Xue, J. Wood and A. Packham, Modelling Collisions of Rail Vehicles with Deformable Objects, Rail Satety and Standards Board (RSSB), Report No.AEATR-LD82141-2005- Issue 1, 2005.
  8. J. S. Koo, H. J. Cho, D. S. Kim and Y. H. Youn, "An Evaluation of Crashworthiness for the Full Rake KHST Using 1-D Dynamic Model," The Korean Society for Railway, Vol.4, No.3, pp.94-101, 2001.
  9. J. O. Hallquist, LS-Dyna Keyword Theory's Manual Ver.971, Livermore Software Technology Corporation, Livermore, 2007.
  10. J. O. Hallquist, LS-Dyna Keyword User's Manual Version 971, Livermore Software Technology Corporation, Livermore, 2007.
  11. J. W. Kim and J. S. Koo, "A Study on the Techniques to Evaluate Carbody Accelerations after a Train Collision," The Korean Society for Noise and Vibration Engineering, Vol.20, No.5, pp.477-485, 2010. https://doi.org/10.5050/KSNVE.2010.20.5.477
  12. E. L. Fasanella and K. E. Jackson, Best Practices for Crash Modeling and Simulation, Technical Report NASA/TM-2002-211944, Langley Research Center, Hampton, Virginia, U.S.A, 2002.