- Volume 21 Issue 2
DOI QR Code
A Study on the Dynamic Analysis of Railway Vehicle by Using Track Coordinate System
트랙좌표계를 이용한 철도차량의 동역학 해석에 관한 연구
- Kang, Juseok (Department of Railway Vehicle System Engineering, Korea National University of Transportation)
- 강주석 (한국교통대학교 철도차량시스템공학과)
- Received : 2012.06.13
- Accepted : 2012.08.29
- Published : 2013.03.01
Rail geometries such as cant, grade and curvature can be easily represented by means of a track coordinate system. In this analysis, in order to derive a dynamic and constraint equation of a wheelset, the track coordinate system is used as an intermediate stage. Dynamic and constraint equations of railway vehicle bodies except the wheelset are written in the Cartesian coordinate system as a conventional method. Therefore, whole dynamic equations of a railway vehicle are derived by combining wheelset dynamic equations and dynamic equations of railway vehicle bodies. Constraint equations and constraint Jacobians are newly derived for the track coordinate system. A process for numerical analysis is suggested for the derived dynamic and constraint equations of a railway vehicle. The proposed dynamic analysis of a railway vehicle is validated by comparison against results obtained from VI-RAIL analysis.
Supported by : 한국연구재단
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