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Comparison of Methods Analyzing Bifurcation and Hunting of Complex Rail Vehicle Models

Polach, Oldrich and Kaiser, Ingo (2012) Comparison of Methods Analyzing Bifurcation and Hunting of Complex Rail Vehicle Models. Journal of Computational and Nonlinear Dynamics. DOI: 10.1115/1.4006825.

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Abstract

The stability assessment is an important task in the mechanical design of railway vehicles. For a detailed model of a railway passenger coach, the hunting behavior depending on the running speed, on wheel-rail contact conditions, and on different model configurations is analyzed using two different methods: The path-following method based on a direct computation of limit cycles enables an automatic computation. However, due to the direct computation, which exploits the periodicity of the solution, this method is restricted to strictly periodic behavior. In the brute-force method, an initial disturbance limited to a certain time interval is applied to the model. This method allows the analysis of the behavior independently from the type of the solution, but requires manual intervention. The comparison of the results obtained with both methods shows a good agreement and thereby the reliability of the results and the methods.

Document Type:Article
Title:Comparison of Methods Analyzing Bifurcation and Hunting of Complex Rail Vehicle Models
Authors:
AuthorsInstitution or Email of Authors
Polach, OldrichBombardier Transportation, Winterthur, Schweiz, oldrich.polach@ch.transport.bombardier.com
Kaiser, IngoIngo.Kaiser@dlr.de
Date:October 2012
Journal or Publication Title:Journal of Computational and Nonlinear Dynamics
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1115/1.4006825
Status:Published
Keywords:Schienenfahrzeug, Nichtlineare Dynamik, Grenzzyklus, Pfadverfolgung, Mehrkörpersystem, Stabilität
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Next Generation Train (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics > System Dynamics and Control (former Control Design Engineering)
Deposited By: Ingo Kaiser
Deposited On:17 Sep 2012 13:42
Last Modified:12 Dec 2013 21:46

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