Advances on railway yaw damper characterisation exposed to small displacements
by Alberto Conde Mellado, Eduardo Gomez, Jordi Vinolas
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 13, No. 4, 2006

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.

Online publication date: Thu, 03-Aug-2006

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