차륜 플랜지 형상변화가 철도차량 주행안전성에 미치는 영향 검토
A Study on the Characteristics of Running Safety according to Variation Railway Vehicle Wheel Load Deviation
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The wheel profile is important factor for running stability of high speed train. In this study, analysis was performed using VI-rail according to vehicle and line condition for two KTX powered vehicle - in order to examine the safety of the vehicle depending on the thickness of the wheel flange. The evaluation of the derailment coefficient, the ratio of wheel unloading, and the running behavior of the car-body and the bogie were less than the reference limits in the entire speed range in both flange thicknesses in the running stability evaluation. The wear index and vibration acceleration of the flange thickness 27mm were slightly larger than those of 29mm.
Abstract
The wheel profile is important factor for running stability of high speed train. In this study, analysis was performed using VI-rail according to vehicle and line condition for two KTX powered vehicle - in order to examine the safety of the vehicle depending on the thickness of the wheel flange. The evaluation of the derailment coefficient, the ratio of wheel unloading, and the running behavior of the car-body and the bogie were less than the reference limits in the entire speed range in both flange thicknesses in the running stability evaluation. The wear index and vibration acceleration of the flange thickness 27mm were slightly larger than those of 29mm.
참고문헌 (8)
- 일본기계학회편, "철도차량의 다이나믹스" (1994)
- 철도기술연구원, "차량의 안정성" (1997)
- 이승일, "KTX 동력차의 헌팅운동 해석", 대한기계학회논문집 A, 28(6), pp.755~762 (2004), 대한기계학회
- 이정화, "철도차량용 차륜의 최적형상 설계에 관한 연구", 대한기계학회 논문집 A권, 23(12), pp.2260~2266 (1999)
- 일본국유철도 기술개발실, "윤축" (1970)
- "고속철도차량 매뉴얼"
- Mechanical Dynamics, "VI-RAIL User's Guide" (2010)
- "철도차량기술기준(고속철도차량)", ~ (2015)