Title: Dynamic response of railroad vehicles: a frequency domain approach

Authors: K.V. Gangadharan, C. Sujatha, V. Ramamurti

Addresses: Mechanical Department, National Institute of Technology Karnataka, Surathkal, 575 025, India. ' Mechanical Engineering Department, Indian Institute of Technology Madras, Chennai, 600 036, India. ' Mechanical Engineering Department, Anna University, Chennai 600 025, India

Abstract: A very elaborate Finite Element (FE) model and a rigid body model of a typical electrical multiple unit trailer coach are described. These models were used to find the dynamic response to track irregularities in the frequency domain. The Power Spectral Density (PSD) of track irregularities was used as input to the system. The influence of different track irregularities on dynamic response and coupling between vertical and lateral dynamics was investigated. Extensive experiments were carried out, and analytical results were compared with the measured response.

Keywords: railroad vehicles; dynamic analysis; railways; rail power spectral density; PSD; random vibration; finite element method; FEM; modelling; rigid body models; India; multiple unit trailer coaches; electrical units; track irregularities; frequency domain.

DOI: 10.1504/IJHVS.2008.017984

International Journal of Heavy Vehicle Systems, 2008 Vol.15 No.1, pp.65 - 81

Published online: 25 Apr 2008 *

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