Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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An Analysis of Running Stability of 1/5 Small Scaled Bogie on Small-Scaled Derailment Simulator

소형탈선시뮬레이터상에서의 1/5 축소대차 주행안정성 해석

  • Eom, Beom-Gyu (Dept. of Rolling Stock System Engineering, Seoul Nat'l Univ. of Science and Technology) ;
  • Kang, Bu-Byoung (Woosong Univ.) ;
  • Lee, Hi-Sung (Dept. of Rolling Stock System Engineering, Seoul Nat'l Univ. of Science and Technology) ;
  • Song, Moon-Shuk (Dept. of Railway Vehicle System Engineering, Korea Nat'l Univ. of Transportation)
  • 엄범규 (서울과학기술대학교 철도차량시스템공학과) ;
  • 강부병 (우송대학교) ;
  • 이희성 (서울과학기술대학교 철도차량시스템공학과) ;
  • 송문석 (한국교통대학교 철도차량시스템공학과)
  • Received : 2012.04.25
  • Accepted : 2012.07.17
  • Published : 2012.11.01
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Abstract

To predict the dynamics behavior, running stability, etc. of a railway vehicle and to understand its physical characteristics, analytical methods are used for the testing and manufacturing of a scale model along with numerical simulations in developed countries (England, France, Japan, etc.). The test of the dynamics characteristics of full-scale models is problematic in that it is expensive and time-consuming because an entire large-scale test plant needs to be constructed, difficulties are involved in the test configuration, etc. To overcome these problems, an analytical study involving dynamics tests and computer simulations using a scaled bogie model that applies the laws of similarity was carried out. In this study, we performed stability analysis on a 1/5 small scaled bogie for parameters such as the running speed and carbody weight by using an analysis model. Furthermore, we verified the reliability by using a small-scaled derailment simulator and examined the dynamic characteristic of the 1/5 small scaled bogie.

철도차량의 동적 거동 및 안정성 등을 예측하고 물리적인 특성을 이해하기 위하여 철도선진국인 영국, 프랑스, 일본 등에서는 축소모델 제작 및 시험하는 방법과 컴퓨터 시뮬레이션을 통하여 해석적으로 접근하는 방법이 사용되고 있다. 실물 규모의 동특성 시험은 대규모의 시험설비 구축에 따른 많은 비용과 시간의 소요, 그리고 시험 환경 설정의 어려움 등의 문제점이 발생하게 된다. 이러한 단점들을 극복하고자 상사법칙을 적용한 축소대차 모델을 이용하여 동적 시험 및 컴퓨터 시뮬레이션을 통한 해석적 연구를 수행하고 있다. 본 연구에서는 소형탈선시뮬레이터를 이용한 1/5 축소대차의 주행안정성 시험에서 신뢰성이 검증된 해석모델을 이용하여 주행안정성에 미치는 매개변수 중 주행속도, 차체 하중의 2가지 변수에 따른 1/5 축소대차의 주행안정성 해석을 수행하고, 그에 따른 동적특성을 검토하였다.

Keywords

References

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