VSD_article_Hubbard_Repo.pdf (464.32 kB)
Models for estimation of creep forces in the wheel/rail contact under varying adhesion levels
journal contribution
posted on 2017-03-24, 09:43 authored by Peter HubbardPeter Hubbard, Christopher Ward, Roger Dixon, Roger GoodallAreas of extremely low adhesion between the wheel and rail can cause critical problems in traction and braking that can manifest in issues such as signals being passed at danger. There is currently a lack of real-time information regarding the state and location of low-adhesion areas across rail networks. The study presented here examines the scientific challenges of understanding the change in vehicle running dynamics with variations in adhesion using the latest thinking of adhesion at micro-slip. This understanding supports the generation of suitable low-order dynamic models for use with a model-based estimator that infers adhesion levels in the wheel/rail contact using signals from modest-cost sensors that could be fitted to in-service vehicles. This paper presents verification of this technique by using simulated inertial measurement produced from a high-fidelity multibody simulation in a series of ‘blind’ tests.
Funding
The authors would like to thank the RSSB and the TSLG for commissioning the project and providing industry led guidance throughout. The authors would also like to thank DeltaRail for supporting model development and providing simulated data from VAMPIRE models.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Vehicle System DynamicsVolume
52Issue
Issue Sup 1Pages
370-386Citation
HUBBARD, P. et al., 2014. Models for estimation of creep forces in the wheel/rail contact under varying adhesion levels. Vehicle System Dynamics, 52 (Supplement), pp.370-386.Publisher
Taylor & FrancisVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2014-03-01Publication date
2014-04-07Copyright date
2014Notes
This is an Accepted Manuscript of an article published by Taylor & Francis in Vehicle System Dynamics on 07/04/2014, available online: http://dx.doi.org/10.1080/00423114.2014.901541. Presented at: 2013 23rd International Association for Vehicle System Dynamics (IAVSD) conference, Qingdao, China, 19-23 August 2013.ISSN
0042-3114eISSN
1744-5159Publisher version
Language
- en