Affiliation:
1. Брянский государственный технический университет
2. Bryanskiy gosudarstvennyy tehnicheskiy universitet
Abstract
The computer simulation of railway wheel pair (WP) dynamics taking into account elasticity allows analyzing WPs highfrequency oscillations and vibroaccelerations of crew part units connected with them, modeling strain gage wheel pairs, estimating the WP deformation impact upon force distributions in gears of locomotive drives, and also solving other ur-gent problems.
In the paper there are offered two approaches to the analysis of the dynamics of elastic WPs within the limits of which their finite element models with the rotating and nonrotating grid are under consideration. The WP kinematics is presented as a sum of its motion as an absolute solid together with the jointed co-ordinates (C) and small elastic removals regarding co-ordinates given which are calculated on the basis of the results of WP modal analysis. A wheel profile kinematics is described taking into account unit elastic motions. There are presented algorithms for the calculation of generalized forces of moving loads in the wheelrail contact taking into account WP elasticity.
Both approaches are realized in the “Universal mechanism” program. The first results of modeling confirming the correctness of the methods offered are shown.
Publisher
Bryansk State Technical University BSTU
Subject
General Earth and Planetary Sciences,General Environmental Science
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