한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2003년도 춘계학술대회 논문집
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- Pages.755-761
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- 2003
KTX 헌팅운동 해석
Analysis on the Hunting Motion of the KTX
- 발행 : 2003.05.01
초록
The dynamic analysis of the KTX can predict the dynamic motions which occurred in test drive. In this study an analytical model of the KTX is developed to find the critical speed. The numerical analysis for the nonlinear equation motions of 17 degrees of freedom show the running stability and the critical speed due to the hunting motion of the KTX. Also, the vibration modes of the KTX are calculated using the ADAMS/RAIL software, which show that the critical speed occurs for the yawing modes of the car body and the bogie. Finally, this paper shows that the critical speed of the KTX could be changed with the modifications of the design parameters of wheel conicity and wheel contact point.
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