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Experimental Study on the Fatigue Strength of a Running Equipment in Railway Applications

철도적용에서 구동장치의 피로강도에 관한 시험적 연구

  • Yoon, Sung Cheol (New Transportation Systems Research Center, Korea Railroad Research Institute) ;
  • Kim, Jeongguk (New Transportation Systems Research Center, Korea Railroad Research Institute)
  • 윤성철 (한국철도기술연구원 신교통연구본부) ;
  • 김정국 (한국철도기술연구원 신교통연구본부)
  • Received : 2016.03.14
  • Accepted : 2016.07.21
  • Published : 2016.09.01

Abstract

The truck that is used as running equipment for tank freight car support is a core structural part that supports the load of the car body and significantly influences the safety of freights and vehicles, as well as their running performance. Running equipment is composed of truck frames, wheels and wheel axles, independent suspensions, and brakes. Among these components, the truck frame supporting the load of the vehicles and freights may be the most important component. This study was carried out to analyze the structure of truck frames and to determine whether they are safe when the maximum vertical load, braking part load, and the front and rear load are applied to truck frames. This was achieved by subjecting the truck frames to stress tests and then measuring the stress on each part. The results of the stress tests showed that truck frames have a safe vehicle load design.

Keywords

References

  1. Kim, J. G., Yoon, S. C., Seo, J. W., and Kwon, S. T., "Structural Safety Assessment of Railway Freight Car during Static Loading," Key Engineering Materials, Vols. 385-387, pp. 653-656, 2008. https://doi.org/10.4028/www.scientific.net/KEM.385-387.653
  2. Yoon, S. C., Kim, J. G., Baik, K. S., Goo, B. C., and Choe, K. Y., "A Study on the Fracture Test in Railroad Truck," Key Engineering Materials, Vols. 488-489, pp. 210-213, 2012.
  3. Yoon, S. C., Kim, W. K., and Kim, J. G., "A Study on the Structural Analysis and Loading Test of the Bogie Frame," Key Engineering Materials, Vols. 326-328, pp. 1087-1092, 2006. https://doi.org/10.4028/www.scientific.net/KEM.326-328.1087
  4. Yoon, S. C., Kwon, S. T., Kim, M. R., and Lee, K. W., "Strength Evaluation of Bogie by Loading Test," Proc. of the Korean Society for Railway of Autumn Conference, pp. 174-179, 2004.
  5. JIS E 4207, "Truck Frames for Railway Rolling Stock-General Rules for Design," 1992.
  6. JIS E 4208, "Test Methods of Static Load for Truck Frames and Truck Bolsters of Railway Rolling Stock," 1988.
  7. Park, K. J., Lee, H. Y., Lee, K. S., and Kim, W. K., "Fatigue Strength Evaluation of a Bogie Frame for Standard Electrical Multiple Unit," Journal of the Korean Society for Railways, Vol. 3, No. 3, pp. 170-176, 2000.
  8. Yoon, S. C., Kim, J. G., and Seo, S. I., "A Study on the Design in Truck of Tank Car," Proc of KSPE Spring Conference, pp. 661-662, 2015.
  9. Ham, Y. S., Chung, H. C., Lee, D. H., and Seo, J. W., "A Study on Improvement Method of Running Safety for Welded Bogie Structure of Railway Freight Car," Korea Railroad Research Institute Research Report, pp 18-19, 2004.
  10. KS R 9210, "General Code of Design for Bogie Stock for Railway Rolling Stock," 1996.
  11. Park, K. J., Kim, W. K., Lee, K. S., and Park, J. S., "Evaluation of Fatigue Strength of the Bogie Frame of the Standard Electrical Multiple Unit," Korea Railroad Research Institute Research Report, pp. 25, 56-57, 1999.