Authors: Alberto Conde Mellado, Eduardo Gomez, Jordi Vinolas
Addresses: CEIT and Tecnun, University of Navarra, Manuel de Lardizabal 15, 20018 San Sebastian, Spain. ' CEIT and Tecnun, University of Navarra, Manuel de Lardizabal 15, 20018 San Sebastian, Spain. ' CEIT and Tecnun, University of Navarra, Manuel de Lardizabal 15, 20018 San Sebastian, Spain
Abstract: This paper focuses on the behaviour of a railway yaw damper when it is subjected to small displacements. These operating conditions occur on high-speed tracks where a high degree of infrastructure maintenance assures low excitation levels of the vehicle. The dynamic response of the typical spring/dashpot in-series model is compared with experimental results of a damper in a wide range of operating conditions. The correlation of the results shows the limitations of this conventional damper model, and some simple modifications are proposed. The variations introduced to produce a |modified| damper model do not add complexity to the conventional model, but extend the operating range for which it has a good correlation with experimental results.
Keywords: damper modelling; railway vehicle dynamics; yaw dampers.
International Journal of Heavy Vehicle Systems, 2006 Vol.13 No.4, pp.263 - 280
Published online: 03 Aug 2006 *Full-text access for editors Access for subscribers Purchase this article Comment on this article