An Evaluation of Structural Integrity and Fatigue Strength for the Bogie Frame of Monorail

모노레일 대차 프레임에 대한 구조 안전성 및 피로강도 평가

  • Received : 2010.02.05
  • Accepted : 2010.07.06
  • Published : 2010.10.26

Abstract

In this paper, the structural integrity and fatigue strength for the bogie frame of Monorail being developed in domestic was evaluated. Presently, the standard of evaluation for the bogie frame of monorail was not regulated. Therefore, the evaluation of the structural integrity and fatigue strength for the bogie frame was performed on the basis of the UIC 615-4 standard. The structural integrity of the designed bogie frame was evaluated by displacement and Von-Mises stress under each load conditions. And the fatigue strength was evaluated by combined main in-service load conditions specified at UIC 615-4 standard and it was compared with result of fatigue analysis using winLIFE v3.1 with the function of batch processing. The results shows that the structural integrity and fatigue strength of the designed bogie frame was satisfied, and the fatigue analysis using batch processing was more effective than conventional fatigue analysis using combined load conditions.

본 논문은 국내에서 개발중인 모노레일 대차 프레임에 대해 구조 안전성 및 피로강도를 평가하였다. 현재 모노레일 대차 프레임에 대한 평가기준은 없는 실정이며, 이에 구조 안전성 및 피로강도 평가는 유럽규격인 UIC 615-4 기준을 적용하여 수행하였다. 이때, 설계된 대차 프레임에 대해 각 하중조건에서의 변위 및 Von-Mises 응력 결과를 통해 구조 안전성을 평가하였다. 그리고 피로강도는 UIC 615-4 기준의 규정에 따라 조합 주 운용하중조건에 의해 평가되고, 일괄처리 기능을 갖는 winLIFE v3.1을 이용한 피로해석 결과와 비교 검증하였다. 본 연구를 통하여 설계된 대차 프레임은 구조적 안전성 및 피로강도를 만족하였으며, 일괄처리 기능을 갖는 피로해석은 조합하중을 이용한 기존 피로해석보다 더 효율적임을 확인하였다.

Keywords

References

  1. K.R. Chung, S.K. Yoon, Y.H. Choi (2006) A Study on the Development Strategies for the Light Rail Transit Industry, Journal of the Korean Society for Railway, 9(1), pp. 95-101.
  2. Y.M. Ahnm, S. Y. Jeon (2008) The Plan of Minimization to the Station of Monorail, Autumn Conference of Korean Society for Railway, pp. 45-49.
  3. T.H. Park, M.H. Park, S.E. Park, S.W. Jo (2007) Optimum Design of Straddle type Light Rail Transit PSC Beam Girder Bridges, Conference of Korean Society of Civil Engineers, pp. 2496-2499.
  4. J.S. Hong, S.H. Ryu, H.Y. Lee, H.C. Hwang (2008) Standard Specification Research for Monorail Type LRT, Autumn Conference of Korean Society for Railway, pp. 436-440.
  5. B. Wang (2003) Constructability Analysis of Monorail Project, Pre-Project Planning & Constructablility Analysis.
  6. C.H. Lee, C.W. Kim, M. Kawatani, N. Nishimura, T, Kamizono (2005) Dynamic Response Analysis of Monorail Bridges under Moving Trains and Riding Comfort of Trains, Engineering Structures, Vol. 27, pp. 1999-2013. https://doi.org/10.1016/j.engstruct.2005.06.014
  7. S. Taketoshi, H. Motomi, Y. Soichiro, T. Takayuki (2005) China's first urban monorail system in chongqing, Hitachi Review, Vol. 54, pp. 193-197.
  8. Y.M. Ahn (2009) The construction of Korea's First High-technology Transportation System Monorail of Daegu Urban Railroad Line No.3, Korean Society of Civil Engineers, 57(11), pp. 66-72.
  9. J.S. Kim, N.P. Kim (2005) An Analytical Study on Fatigue Strength Evaluation Procedure for the Bogie Frame of Tilting Railway Vehicle, Journal of the Korean Society for Railway, 8(4), pp. 321-329.
  10. K.J. Park, H.Y. Lee, K.S. Lee, W.K. Kim (2000) Fatigue Strength Evaluation of a Bogie Frame for Standard Electric Multiple Unit(1), Journal of Korean Society for Railway, 3(3), pp. 145-151.
  11. W.J. Kim, S.Y. Song, G.S. Park, H.S. Park (2007) Evaluation of Static and Fatigue Strength applying European Standard for the Bogie Frame of Diesel Multiple Unit, Autumn Conference of Korean Society for Railway, pp. 797-804.
  12. KS R9210, Truck Frames for Railway Rolling Stock-General Rules for Design.
  13. Truck Frames for Railway Rolling Stock-General Rules for Design. Japanese Industrial Standard (JIS) E 4207.
  14. UIC Code 615-4 : Motive Power Units Bogies and Running Gear Bogie Frame Structure Strength Tests (2003).