The influence of the damping coefficients to the hunting motion stability of the bogies
Journal Title: Romanian Journal of Acoustics and Vibration - Year 2012, Vol 9, Issue 1
Abstract
Conventional railway vehicle systems exhibit lateral instability phenomenon doe to selfinduced oscillations of the rigid axle wheelsets, which increases component wear and imposes operating speed limits. To improve the stability performances, without increasing the rail-wheel interaction forces above safety limits, elastic joints and dissipative devices are used to connect the wheelset to the bogie frame. Using the linear elastic and damping model, this paper derives the governing differential equations of motion for a bogie with independently rotating wheelsets. The bogie is modeled by a 6 degree-of-freedom (DOF) system which considers the lateral displacement and yaw angle of each wheelset and the lateral displacement and yaw angle of the truck frame. The equations of motion of the mechanical model, were proceeding in a Matlab-Simulink program. In this paper is presented the influence of the damping coefficients of the model on the hunting motion stability of the considered bogie by numerical simulations.
Authors and Affiliations
Daniel BALDOVIN, Simona BALDOVIN
Keywords
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- EP ID EP115308
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