Dynamic properties of an individual wheelset drive of a railway vehicle | Zendy

Skála Ondřej | Zendy; Zeman Vladimír | Zendy

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Dynamic properties of an individual wheelset drive of a railway vehicle

Author(s) -

Skála Ondřej,

Zeman Vladimír

Publication year - 2008

Publication title -

pamm

Language(s) - English

Resource type - Journals

ISSN - 1617-7061

DOI - 10.1002/pamm.200810381

Subject(s) - bogie , ballast , vibration , structural engineering , track (disk drive) , axle , frame (networking) , transient (computer programming) , nonlinear system , engineering , automotive engineering , computer science , mechanical engineering , physics , acoustics , electrical engineering , quantum mechanics , operating system

Spatial vibrations of an individual wheelset drive supported by rubber silent blocks in a two–axle bogie's frame of a railway vehicle are studied. The method, used for a creation of a mathematical model, is based on a decomposition of the wheelset drive into subsystems — a drive assembled from an engine and a gear transmission, a flexible composite hollow shaft and a flexible wheelset. Subsystems are modeled in local configuration spaces and they are mutually connected by deformable couplings. An adhesive characteristic in a wheel–rail contact is described using the Kalker's theory. The nonlinear mathematical model respects spatial vibrations of the drive's components and the flexible wheelset, a deformable rail ballast and it is used for investigating transient dynamic responses on different types of excitations. Experimentally investigated spatial bogie's frame displacements or displacements derived from a total model of the bogie caused by spatial irregularities of the rail track are main sources of excitations. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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