Article | Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017 | The DLR RailwayDynamics Library: the Crosswind Stability Problem Linköping University Electronic Press Conference Proceedings
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Title:
The DLR RailwayDynamics Library: the Crosswind Stability Problem
Author:
Andreas Heckmann: Institute of System Dynamics and Control, German Aerospace Center (DLR), Germany Gustav Grether: Institute of System Dynamics and Control, German Aerospace Center (DLR), Germany
DOI:
10.3384/ecp17132623
Download:
Full text (pdf)
Year:
2017
Conference:
Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017
Issue:
132
Article no.:
069
Pages:
623-631
No. of pages:
9
Publication type:
Abstract and Fulltext
Published:
2017-07-04
ISBN:
978-91-7685-575-1
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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High crosswinds affect the stability of railway vehicles, in particular if they run on very high speed to reduce traveling time, if they are configured as double-deck cars to increase the number of passenger seats and if they use light-weight design in order to reduce life-cycle costs. This is why crosswind stability is an active field of research within the project Next Generation Train. However, this field relies on the cooperation of two different domains, namely aerodynamics and vehicle dynamics. With this background a crosswind stability tool was implemented in Modelica as a part of the DLR RailwayDynamics Library. This tool gathers data from scaled wind tunnel measurements and multibody data on the railway vehicle in order to rapidly analyze and assess the risk of overturning due to high crosswinds. To a large extent the tool is oriented towards the associated homologation rules and standards. However, the tool is as well supposed to support future advancements of these standards by providing capabilities for the stochastic analysis of the crosswind stability problem.

Keywords: Vehicle dynamics, aerodynamics, railway vehicles, crosswind stability, aerodynamic admittance, stochastic analysis

Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017

Author:
Andreas Heckmann, Gustav Grether
Title:
The DLR RailwayDynamics Library: the Crosswind Stability Problem
DOI:
http://dx.doi.org/10.3384/ecp17132623
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Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017

Author:
Andreas Heckmann, Gustav Grether
Title:
The DLR RailwayDynamics Library: the Crosswind Stability Problem
DOI:
https://doi.org10.3384/ecp17132623
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