Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Performance Tests of a High Capacity Buffer Coupling System using a Hydraulic Device

유압 장치를 이용한 철도 연결기용 고용량 충격완충기의 성능시험

  • Kim, Namwook (Department of Mechanical Engineering, Hanyang University) ;
  • Park, Yeong-il (Department of Mechanical System Design Engineering, Seoul National University of Science & Technology)
  • 김남욱 (한양대학교 기계공학과) ;
  • 박영일 (서울과학기술대학교 기계시스템디자인공학과)
  • Received : 2016.01.19
  • Accepted : 2016.02.19
  • Published : 2016.02.29
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Abstract

Coupling systems under train's collision should take the impact by absorbing the impact energy caused from the collision, so the systems are very important parts for the safety of the trains. However, it is not easy to evaluate the performance of the system because it requires a huge testing facility, which is able to control the impact and to handle many safety issues. In this paper, test results are provided, which are obtained from collision tests of a single train having a coupling system in the front, and the results are analyzed in order to understand the characteristics and the dynamic behaviors of energy absorbing materials in the coupling system, such as a hydraulic buffer, and two rubber buffers. The results show that the force of each component could be empirically described by the compression displacement and velocity. The analyzed results will be applied to simulation models, and advanced studies wouuld be available if the simulation models are well validated with the test results.

Keywords

References

  1. H. -m. Jang, N. Kim and Y. -i. Park, "Comparison of Simulation Models for Train Buffer Couplings", Transactions of KSEA, Vol. 18, No. 4, pp. 107-144, 2010.
  2. N. W. Kim, H. M Jang, K. N. Kim and Y. I. Park. "Equivalent Model of Coupling System Based on Experimental Results", KSAE Conference, Vol. 4, pp. 1061-1065, 2008.
  3. K. Ahn and B. Ryu, "A Modeling of Impact Dynamics and its Application to Impact Force Prediction", J. of Mech. Sci. and Tech., Vol. 19, No. 1, pp. 422-428, 2005. https://doi.org/10.1007/BF02916163
  4. Y. Kajita, T. Kitahara, Y. Nishimoto and H. Otsuka, "Estimation of Maximum Impact Force on Natural Rubber During Collision of Two Steel Bars", 1st European Conf. on Earthquake Engineering and Seismology, Geneva, Switzerland, 2006.
  5. C. Cracium, A. Mitu, C. Cruceanu and T. Sireteanu, "Modeling the Buffers Hysteretic Behavior for Evaluation of Longitudinal Dynamic In-train Forces", SISOM 2012 and Session of the Commission of Acoustics, Bucharest, 2012.
  6. J. H. Choi, "Performance Simulation of High Capacity Hydrostatic Buffer with Silicone Gum", 2015 KSR Spring Conference Proceedings, 2015.
  7. A. Gent, "A New Constitutive Relation for Rubber", Rubber Chemistry and Technology Journal, Vol. 69, No. 1, pp. 59-61, 1996. https://doi.org/10.5254/1.3538357
  8. Z. Guo, "Computational Modeling of Rubber-like Materials Under Monotonic and Cyclic Loading", Ph.D. Thesis, Delft University of Technology, 2006.
  9. M. Durali and M. Bahabadi, "Investigation of Train Dynamics in Passing Through Curves Using A Full Model", 2004 ASME/IEEE Joint Rain Conf., Maryland, USA, 2004.
  10. J. S Koo and D. H. Song, "Collision Analysis of the Full Rake TGV-K for Crashworthiness", KSR Conference, pp. 361-368, 1998.

Cited by

  1. Collision tests and model development of a train coupling system using a high-capacity energy absorber vol.232, pp.9, 2018, https://doi.org/10.1177/0954409718766930