Ride comfort enhancement in railway vehicle by the reduction of the car body structural flexural vibration

5th ModTech International Conference - Modern Technologies in Industrial Engineering

Dumitriu, M.^1

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

060042, Romania^1

关键词: Bending resonance;    Bending vibrations;    Flexural vibrations;    Passive suspension;    Primary suspension;    Railway vehicles;    Secondary suspension;    Vertical suspensions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/227/1/012042/pdf
DOI  :  10.1088/1757-899X/227/1/012042

来源: IOP

【 摘 要 】

The paper approaches the issue of reduction in the vertical bending vibrations of the railway vehicle carbody and the ride comfort enhancement at high velocities, starting from the prospect of isolating the vibrations by the best possible selection of the passive suspension damping in the vehicle. To this purpose, the examination falls on the influence of the vertical suspension damping upon the vibrations regime of the vehicle at the bending resonance frequency and upon the ride comfort. The results of the numerical simulations regarding the frequency response of the carbody acceleration and the comfort index will be therefore used. A value of the secondary suspension damping can be thus identified that will provide the best ride comfort performance. Similarly, the ride comfort can be increased by raising the primary suspension damping ratio.