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Main Title: Critical speed and limit cycles in the empty Y25-freight wagon
Author(s): Molatefi, Habibollah
Hecht, Markus
Kadivar, M. H.
Type: Article
Language Code: en
Abstract: In this research, an empty freight wagon with Y25 bogies have been modelled. Non-linear creep forces with spin moment between wheel and rail have been used, and also all impacts and friction forces have been modelled. Non-linear equations of motion and kinematical constraints have been solved in time domain, and limit cycles, saddle nodes, and critical speeds have been shown. Both primary and secondary hunting can be seen in the responses of the wagons. The relation between frequency of oscillations and speed can be seen, also, there are chaotic oscillations. Results show that stiffness in impacts affects calculation time and limit cycles.
Issue Date: 2006
Date Available: 8-Jan-2019
DDC Class: 380 Handel, Kommunikation, Verkehr
Subject(s): freight wagon
Y25 bogie
limit cycle
Journal Title: Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
Publisher: SAGE Publications
Publisher Place: Washington, DC
Volume: 220
Issue: 4
Publisher DOI: 10.1243/09544097JRRT67
Page Start: 347
Page End: 359
EISSN: 2041-3017
ISSN: 0954-4097
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:FG Schienenfahrzeuge » Publications

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