On the bending vibration of a train driving wheelset

7th Modern Technologies in Industrial Engineering

工业技术（总论）

Mazilu, T.^1 ; Gheti, M.A.^1

Politehnica University of Bucharest, Department of Railway Vehicles, 313 Splaiul Independentei, Bucharest

060042, Romania^1

关键词: Analytical method;    Bending vibrations;    Frequency response functions;    Mechanical model;    Railway vehicles;    Steady state;    Uniform beams;    Wheel/rail contact forces;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/591/1/012059/pdf
DOI  :  10.1088/1757-899X/591/1/012059

学科分类：工业工程学

来源: IOP

【 摘 要 】

The driving wheelset is used on the traction railway vehicle to support a part of the vehicle's weight and for traction and braking purpose. The driving wheelset consists of the axle on which the two wheels and the driving gear are rigidly attached. The bending vibrations in the driving wheelset may be caused by variations of the vertical wheel/rail contact force. In this paper, a mechanical model of the driving wheelset, consisting of a free-free uniform beam with three rigid bodies, representing the axle, the two wheels and the driving gear, is considered. Using an analytical method for solving the equations of motion for the model, the steady-state harmonic behaviour of the bending vibrations is analysed. The frequency response function and the impact of the position of the driving gear upon this function are pointed out.