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Identification of a dynamic friction model for railway disc brakes

Ehret, Marc (2021) Identification of a dynamic friction model for railway disc brakes. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. SAGE Publications. doi: 10.1177/0954409721993626. ISSN 0954-4097.

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Official URL: https://doi.org/10.1177/0954409721993626

Abstract

Braking forces occurring during emergency brake applications of passenger trains are generated by disc brake units. The acting friction forces depend on the frictional properties between disc and brake pad and are influenced by relative velocity, temperatures and normal pressure of the contacting surfaces. In this work a mathematical model is developed which aims to link these influencing variables to the instantaneous acting friction coefficient in order to include the characteristic behavior of friction forces in the calculation of longitudinal dynamics of railway vehicles. The model is identified by the use of data recorded on a full-scale dynamometer test rig and verified regarding the estimation of the brake distance.

Item URL in elib:https://elib.dlr.de/140383/
Document Type:Article
Title:Identification of a dynamic friction model for railway disc brakes
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Ehret, MarcMarc.Ehret (at) dlr.dehttps://orcid.org/0000-0001-5027-3865
Date:10 February 2021
Journal or Publication Title:Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1177/0954409721993626
Publisher:SAGE Publications
ISSN:0954-4097
Status:Published
Keywords:dynamic model, friction coefficient, railway disc brakes, dynamometer, numerical optimization
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:other
DLR - Research area:Transport
DLR - Program:V - no assignment
DLR - Research theme (Project):V - no assignment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Vehicle System Dynamics
Deposited By: Ehret, Marc
Deposited On:25 Feb 2021 17:14
Last Modified:25 Feb 2021 17:14

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