Theoretical prediction of the damping of a railway wheel with sandwich-type dampers

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Theoretical prediction of the damping of a railway wheel with sandwich-type dampers

Merideno, Inaki / Nieto, Javier / Gil-Negrete, Nere / Gimenez Ortiz, Jose German / Landaberea, Aitor / Iartza, Jon

This paper presents a procedure for predicting the damping added to a railway wheel when sandwich-type dampers are installed. Although there are different ways to reduce the noise generated by a railway wheel, most devices are based on the mechanism of increasing wheel damping. This is why modal damping ratios are a clear indicator of the efficiency of the damping device and essential when a vibro-acoustic study of a railway wheel is carried out. Based on a number of output variables extracted from the wheel and damper models, the strategy explained herein provides the final damping ratios of the damped wheel. Several different configurations are designed and experimentally tested. Theoretical and experimental results agree adequately, and it is demonstrated that this procedure is a good tool for qualitative comparison between different solutions in the design stages.

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Document information

Title :

Theoretical prediction of the damping of a railway wheel with sandwich-type dampers

Contributors:

Merideno, Inaki (author) / Nieto, Javier (author) / Gil-Negrete, Nere (author) / Gimenez Ortiz, Jose German (author) / Landaberea, Aitor (author) / Iartza, Jon (author)

Published in:

Journal of Sound and Vibration ; 333 , 20 ; 4897-4911

Publication date :

2014

Size :

15 Seiten, 40 Quellen

ISSN :

0022-460X

DOI :

https://doi.org/10.1016/j.jsv.2014.05.034

Type of media :

Article (Journal)