Browse > Article

Analysis on the Snake Motion of One Freight Car for High Speed Running  

이승일 (한국철도대학 차량기계과)
최연선 (성균관대학교 기계공학부)
Publication Information
Journal of the Korean Society for Railway / v.6, no.3, 2003 , pp. 149-155 More about this Journal
Abstract
The development of railway vehicles involves the proper selection of design parameters not only to achieve high speed but also to reduce the vibration of the train. In this study an analytical model of a freight car is developed to find the critical speed. The freight car can generate the snake motion of the lateral and yawing motion of the car body, the bogie, and the wheelset. Numerical analysis for the nonlinear equation motions with 17 degrees of freedom showed the running stability and critical speed due to the snake motion. Also, the vibration modes of the freight car was calculated using ADAMS/RAIL, which showed that the critical speed have the yawing modes of the car body and the bogie. Finally this paper shows that the snake motion of the vehicle can be controlled with the modifications of the design parameters.
Keywords
critical speed; running stability; snake motion; freight car; high speed running; hunting;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 이승일, 최연선, '고속주행용 화차대차의 주행안전성,' 한국철도학회, 제4권, 제3호, pp. 116-122, 2001
2 Galvanetto, U. and Briseahella, L., 'Optimal Axle Distance of a Railway Bogie,' International Journal of Bifurcation and Chaos, Vol. 7, No. 3, pp. 721-732, 1997   DOI   ScienceOn
3 Blader, F. B., 'Dynamic Stability of Cars in Long Freight Trains,' ASME, J. Eng. Industry, pp. 1159-1167, 1974
4 'GETTING STAKTED USING ADAMS/RAIL VERSION 12,' Mechanical Dynamics., 2002
5 Cooperrider, N. K., 'The Hunting Behavior of Conventional Railway Truck,' ASME, J. Eng. Industry, Vol. 94, pp. 752-762, 1972   DOI
6 Carter, F. W., 'On the Stability of Running of Locomotives,' Proceedings of the Royal Society of London, Series A, Vol 121, pp. 585-611, 1968
7 오일근, 정우진, '철도차량의 비선형 사행동 발생 속도 예측,' 한국철도기술, 17호, pp. 78-86, 1998
8 日本機械學會編, '鐵道車輛の タ"イナミクス,' 電氣車硏究會, 1994
9 Wickens, A. H., 'The Dynamics Stability of a Simplified Four-Wheeled Railway Vehicle having Profiled Wheels,' Int. J. Solids and Structures, Vol. 1, pp. 385-406, 1965   DOI   ScienceOn