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On the crosswind stability of high speed railway vehicles
Author(s) -
Wetzel Christian,
Proppe Carsten
Publication year - 2006
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200610152
Subject(s) - crosswind , train , reliability (semiconductor) , probabilistic logic , automotive engineering , stability (learning theory) , interoperability , computer science , reliability engineering , engineering , aerospace engineering , power (physics) , physics , cartography , quantum mechanics , artificial intelligence , machine learning , geography , operating system
The crosswind stability against overturning is a major national design criterium for high‐speed railway vehicles. Due to the increasing interoperability in Europe it has also become an important international task. Especially modern light‐weight trains are at risk to fail and counter‐measures as for example wind‐fences or adding extra weight in the underbelly are always very expensive. In recent years efforts were made to derive an uniform rule in certifying railway vehicles. In this case especially probabilistic methods were proposed. These probabilistic technics are common design criteria for wind turbines. This paper presents a sophisticated method to compute the reliability of railway vehicles under strong crosswind. In consideration of the given gust signal and the high‐frequency, turbulent fluctuations of the wind the response of a simplified train model is computed. The major failure criterium to determine the reliability is the lowest wheel‐rail contact force of the railway vehicle. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)