Mark Sterling
An investigation of the aerodynamic admittances and weighting functions of trains
Sterling, Mark; Baker, Chris; Bouferrouk, Abdessalem; O'Neil, Hugh; Wood, Stephen; Pearce, Wayne; Crosbie, Ewan
Authors
Chris Baker
Abdesselam Bouferrouk Abdessalem.Bouferrouk@uwe.ac.uk
Senior Lecturer in Engineering
Hugh O'Neil
Stephen Wood
Wayne Pearce
Ewan Crosbie
Abstract
Increasing train speeds combined with the predicted reduction in the weight of new trains ensures that the effect of crosswinds on train stability is of continued interest to the rail industry. Changes in the approaching wind velocity can in turn lead to changes in both the lift and side force on a vehicle. Calculations of the wind induced force can either be undertaken in the frequency domain with knowledge of aerodynamic admittance characteristics or in the time domain using aerodynamic weighting functions. This paper investigates the applicability of developing a universal aerodynamic admittance function and a corresponding analytical weighting function for a variety of train types based on a range of experimental data. It is suggested that only two variables are required to parameterise both the admittance and weighting functions. It is also argued that for certain train types one of these variables can be considered as a constant across a wide range of yaw angles.
Presentation Conference Type | Conference Paper (unpublished) |
---|---|
Conference Name | BBAA VI International Colloquium on Bluff Bodies Aerodynamics & Applications |
Start Date | Jul 20, 2008 |
End Date | Jul 24, 2008 |
Publication Date | Jul 20, 2008 |
Deposit Date | Jan 21, 2015 |
Peer Reviewed | Peer Reviewed |
Keywords | trains, aerodynamics, weighting |
Public URL | https://uwe-repository.worktribe.com/output/1010760 |
Publisher URL | http://bbaa6.mecc.polimi.it/papers.html#papers |
Additional Information | Title of Conference or Conference Proceedings : BBAA VI International Colloquium on Bluff Bodies Aerodynamics & Applications |
Contract Date | Nov 15, 2016 |
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