Towards a model for prediction of railway tread brake noise
Towards a model for prediction of railway tread brake noise
A model for complex linear stability analysis of railway tread brakes has been developed. It accounts for inertial effects due to wheel rotation as well as damping provided by tangential wheel-rail contact forces. Kinematic constraint equations are used to model the normal brake-wheel contact. For a brake-wheel friction coefficient higher than 0.2, unstable vibrations develop for several system eigenmodes in the frequency range above 6 kHz. The required level of brake-wheel friction at onset of instability is influenced by the wheel profile and the tangential wheel-rail contact damping. The present work constitutes the first step in the development of a prediction model for railway tread brake noise.
damping, Friction, friction materials, Linear stability analysis, railroad rolling stock, rails, structural dynamics, vehicle wheels, friction coefficient, vibrations (mechanical), fewquency ranges, inertial effects, Kinematic constraints, onset of instabilities, prediction model, wheel-rail contact forces, wheel-rail contacts, brakes
3543-3556
Torstensson, P.T.
4714e40e-0ae3-481b-b78d-6454926c695c
Pieringer, A.
31bd6b3b-3087-49e8-8ab3-e9c79465d7f8
Baeza, L.
09dc5565-ad4b-49af-a104-d4b6ad28e1b0
2014
Torstensson, P.T.
4714e40e-0ae3-481b-b78d-6454926c695c
Pieringer, A.
31bd6b3b-3087-49e8-8ab3-e9c79465d7f8
Baeza, L.
09dc5565-ad4b-49af-a104-d4b6ad28e1b0
Torstensson, P.T., Pieringer, A. and Baeza, L.
(2014)
Towards a model for prediction of railway tread brake noise.
In Proceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
A model for complex linear stability analysis of railway tread brakes has been developed. It accounts for inertial effects due to wheel rotation as well as damping provided by tangential wheel-rail contact forces. Kinematic constraint equations are used to model the normal brake-wheel contact. For a brake-wheel friction coefficient higher than 0.2, unstable vibrations develop for several system eigenmodes in the frequency range above 6 kHz. The required level of brake-wheel friction at onset of instability is influenced by the wheel profile and the tangential wheel-rail contact damping. The present work constitutes the first step in the development of a prediction model for railway tread brake noise.
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More information
Published date: 2014
Venue - Dates:
26th International Conference on Noise and Vibration Engineering, ISMA 2014: Including the 5th International Conference on Uncertainty in Structural Dynamics, USD 2014, , Leuven, Belgium, 2014-09-15 - 2014-09-17
Keywords:
damping, Friction, friction materials, Linear stability analysis, railroad rolling stock, rails, structural dynamics, vehicle wheels, friction coefficient, vibrations (mechanical), fewquency ranges, inertial effects, Kinematic constraints, onset of instabilities, prediction model, wheel-rail contact forces, wheel-rail contacts, brakes
Organisations:
Dynamics Group
Identifiers
Local EPrints ID: 408789
URI: http://eprints.soton.ac.uk/id/eprint/408789
PURE UUID: 9a89313b-0f47-40a8-b164-444b6588620e
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Date deposited: 28 May 2017 04:01
Last modified: 15 Mar 2024 14:12
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Contributors
Author:
P.T. Torstensson
Author:
A. Pieringer
Author:
L. Baeza
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