| Issue |
MATEC Web Conf.
Volume 112, 2017
21st Innovative Manufacturing Engineering & Energy International Conference – IManE&E 2017
|
|
|---|---|---|
| Article Number | 07013 | |
| Number of page(s) | 6 | |
| Section | Mechanical and Manufacturing Equipment, Devices and Instrumentation, Design and Analysis | |
| DOI | https://doi.org/10.1051/matecconf/201711207013 | |
| Published online | 03 July 2017 | |
On the stick-slip vibration in the suspension of a freight wagon
1 University Politehnica of Bucharest, Department of Railway Vehicles, Splaiul Independenţei 313, Bucharest, Romania
2 S.N.T.F.C. ‘CFR CĂLĂTORI’ S.A., Blvd. Dinicu Golescu 38, Bucharest, Romania
* Corresponding author: trmazilu@yahoo.com
Damping based on the dry friction is frequently in suspensions of the freight wagons. The paper presents some aspects of vertical vibration of freight wagons. It uses a simple model considering that the vehicle was reduced to a mass suspended on a wheel, moving at constant speed on a rigid track with harmonic irregularity. Stick-slip vibration can occur due to the friction and it is characterized by sudden changes in the wheel acceleration affecting the ride quality. The paper shows the influence of stick-slip vibration on the wheel-rail dynamic force.
© The Authors, published by EDP Sciences, 2017
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