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A Problematic Approach to the Effects of Cross-Winds on Rolling Stock

Carrarini, A. (2004) A Problematic Approach to the Effects of Cross-Winds on Rolling Stock. In: ECCOMAS 2004. 4th European Congress on Computational Methods in Applied Sciences and Engineering, 2004-07-24 - 2004-07-28, Finland.

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Abstract

Strong cross-winds can be a source of critical loads on rolling stock, especially for modern lightweight high-speed trains. In this paper some topics of the risk analysis for the cross-wind stability of railway vehicles are discussed. The main tool used to this aim is multibody simulation. The most important input for it must be delivered by an aerodynamic model of the vehicle and of the operating environment. The fact that the parameters in the aerodynamic model can not be detected with sufficient accuracy or can undergo large fluctuations will be focused. This parametric uncertainty is neglected or not properly covered by the conventional risk analysis, which is mainly deterministic. A probabilistic approach, which can address the question more efficiently, is outlined, discussed and presented on a test case.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2005,
Title:A Problematic Approach to the Effects of Cross-Winds on Rolling Stock
Authors:
AuthorsInstitution or Email of Authors
Carrarini, A.UNSPECIFIED
Date:2004
Journal or Publication Title:ECCOMAS 2004
Editors:
EditorsEmail
Neittaanmäki, P.UNSPECIFIED
Rossi, T.UNSPECIFIED
Majava, K.UNSPECIFIED
Pironneau, O.UNSPECIFIED
Status:Published
Keywords:cross-wind stability, railway vehicles, multibody dynamics, parametric uncertainty, reliability
Event Title:4th European Congress on Computational Methods in Applied Sciences and Engineering
Event Location:Finland
Event Type:international Conference
Event Dates:2004-07-24 - 2004-07-28
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics > System Dynamics and Control (former Control Design Engineering)
Deposited By: Monika Klauer
Deposited On:28 Aug 2007
Last Modified:12 Mar 2010 14:01

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