Importance of flexural mode shapes in dynamic analysis of high-speed trains traveling on bridges-Reference-Cited by-同舟云学术

Importance of flexural mode shapes in dynamic analysis of high-speed trains traveling on bridges

Published:2013-04-16 Issue:10 Volume:20 Page:1565-1583
ISSN:1077-5463
Container-title:Journal of Vibration and Control
language:en
Short-container-title:Journal of Vibration and Control

Author:

Younesian Davood¹,Marjani Seyed Rahim¹,Esmailzadeh Ebrahim²

Affiliation:

1. Center of Excellence in Railway Transportation, School of Railway Engineering, Iran University of Science and Technology, Iran

2. Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, Canada

Abstract

The effects of railway car-body flexibility on the dynamic analysis of high-speed trains traveling on bridges are studied. The flexible car-body is modeled as a uniform beam supported by the primary and secondary suspensions. A parametric sensitivity study is carried out to examine the effects of different parameters, namely the track irregularity, rail joint, traveling speed and the wheel flat, on the dynamic responses of the car-body and bridge. The rail surface roughness is regenerated by its power spectral density. Different types of rail joint geometries and wheel imperfections are mathematically modeled and included in the numerical simulation. It is found that the flexural mode shapes of the body structure can remarkably affect the calculated ride comfort index especially in the low frequency range.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Mechanics of Materials,Aerospace Engineering,Automotive Engineering,General Materials Science

Link

http://journals.sagepub.com/doi/pdf/10.1177/1077546312466882

Reference26 articles.

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