Engineering Mechanics

Proceedings Vol. 11 (2005)

ENGINEERING MECHANICS 2005

Copyright © 2005 Institute of Mechanics of Solids, Faculty of Mechanical Engineering, Bruno University of Technology, Brno

 

Polach P., Hajžman M.
pages 255 - +12p., full text

Vertical dynamic properties of the ŠKODA 21 Tr low-floor trolleybus were investigated on an artificial test track when driving with a real vehicle and when simulating driving with a mathematical model along a virtual test track. Driving along the artificial test track was aimed at determining vertical dynamic properties of the real trolleybus and on the basis of them at verifying mathematical models. This paper is an introduction to solving the given problems and deals with comparison of the relative displacements between the axles and the chassis frame measured in the course of driving along the test track with the real empty trolleybus and the relative deflections of air springs determined in the course of simulations with the existing empty trolleybus multibody model. Three variants of the hydraulic shock absorbers model were successively considered for simulations.

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