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- W2003013072 abstract "Using a heuristic linear creep model, this article derives the governing differential equations of motion for a vehicle travelling on curved tracks. The vehicle is modelled by a 27-degrees-of-freedom (27-DOF) car system, with lateral and vertical displacement, roll and yaw angle of each wheelset and the bogie frames, as well as lateral displacement, and roll and yaw angle of the car body taken into consideration. To analyse the respective effects of major system parameters on vehicle dynamics, the 27-DOF system is reduced to a 14-DOF system by excluding designated subsets of the system parameters. The effects of suspension parameters of a vehicle on the critical hunting speeds were evaluated by the 14- and 27-DOF systems. The results obtained in this study, show that the critical hunting speeds derived using the 14-DOF system are generally higher than those obtained using the 27-DOF system. Additionally, the critical hunting speeds derived using the heuristic non-linear creep model are lower than those achieved using the linear creep model. The effects on derailment quotients of vehicle speeds are evaluated using both linear and non-linear creep models with various suspension parameters. Finally, the effects of vehicle speed on the derailment quotient for sharp curves and low vehicle speed are investigated and compared with both linear and non-linear creep models." @default.
- W2003013072 created "2016-06-24" @default.
- W2003013072 creator A5012321988 @default.
- W2003013072 creator A5048331620 @default.
- W2003013072 date "2011-07-18" @default.
- W2003013072 modified "2023-09-23" @default.
- W2003013072 title "Hunting stability and derailment analysis of a car model of a railway vehicle system" @default.
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- W2003013072 doi "https://doi.org/10.1177/0954409711407658" @default.
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