Based on the heuristic nonlinear creep model, this investigation derives the nonlinear coupled differential equations of the motion of a 24 degrees-of-freedom car system that moves on curved tracks. To analyse the effects of the major system parameters on the vehicle dynamics, the 24-DOF system is reduced to a 14-DOF model. Generally, analytical results reveal that the critical hunting speed derived using the 14-DOF model normally exceeds that evaluated using the 24-DOF model. Finally, the desired regions of suspension parameters in which critical hunting speeds exceed 300 km/h obtained using the 14-DOF and 24 DOF models are presented.
Hunting stability analysis of a full high-speed railway vehicle on curved tracks
International Journal of Heavy Vehicle Systems (IJHVS) (Internet) ; 19 , 2 ; 151-171
2012
21 Seiten, 6 Bilder, 17 Quellen
Aufsatz (Zeitschrift)
Englisch
Hunting stability analysis of a full high-speed railway vehicle on curved tracks
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