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Analysis of Structures Subjected to Moving Loads

Olsson, Mats (1986) In TVSM-1000
Abstract
Analysis of structures subjected to moving loads is presented. In particular, structural effects due to structure-vehicle interaction are studied. The basic equations of the structure-vehicle system are derived by means of continuum mechanics, the finite element method and multibody dynamics.

In order to consider the interaction between structure and vehicle in a straightforward way, a special structure-vehicle finite element is derived in general terms. To the author's knowledge this is a new way to describe the moving load problem.

For the structural part a hierarchical finite beam element is derived. Polynomial terms and, as a special feature, eigenfunctions can be used as hierarchical functions. The element is capable... (More)
Analysis of structures subjected to moving loads is presented. In particular, structural effects due to structure-vehicle interaction are studied. The basic equations of the structure-vehicle system are derived by means of continuum mechanics, the finite element method and multibody dynamics.

In order to consider the interaction between structure and vehicle in a straightforward way, a special structure-vehicle finite element is derived in general terms. To the author's knowledge this is a new way to describe the moving load problem.

For the structural part a hierarchical finite beam element is derived. Polynomial terms and, as a special feature, eigenfunctions can be used as hierarchical functions. The element is capable of handling coupled vibrations and warping torsion. The element has a number of options which makes it flexible in use.

Numerical results are mainly presented in terms of time histories and dynamic magnification factors for structural displacements and moments as functions of different models and parameters. Structural effects due to different vehicle models are studied in particular. In the verification examples, present results show good agreement with theoretical and experimental results of other investigators. To some extent, the present results are compared with structural design codes. (Less)
Please use this url to cite or link to this publication:
author
supervisor
publishing date
type
Thesis
publication status
published
subject
keywords
Moving loads, Bridge, Guideway, Structural dynamics, Structure-vehicle interaction, Finite element method, Modal analysis, Beams, frames, Torsion, Warping, Breaking, Numerical simulations, Dynamic magnification, Design
in
TVSM-1000
issue
TVSM-1003
edition
1
pages
216 pages
publisher
Division of Structural Mechanics, LTH
language
English
LU publication?
no
id
f76cef5b-edbf-4b0f-aa29-5733b5a3121b
date added to LUP
2023-08-03 14:59:15
date last changed
2024-03-25 13:01:13
@phdthesis{f76cef5b-edbf-4b0f-aa29-5733b5a3121b,
  abstract     = {{Analysis of structures subjected to moving loads is presented. In particular, structural effects due to structure-vehicle interaction are studied. The basic equations of the structure-vehicle system are derived by means of continuum mechanics, the finite element method and multibody dynamics.<br/><br/>In order to consider the interaction between structure and vehicle in a straightforward way, a special structure-vehicle finite element is derived in general terms. To the author's knowledge this is a new way to describe the moving load problem.<br/><br/>For the structural part a hierarchical finite beam element is derived. Polynomial terms and, as a special feature, eigenfunctions can be used as hierarchical functions. The element is capable of handling coupled vibrations and warping torsion. The element has a number of options which makes it flexible in use.<br/><br/>Numerical results are mainly presented in terms of time histories and dynamic magnification factors for structural displacements and moments as functions of different models and parameters. Structural effects due to different vehicle models are studied in particular. In the verification examples, present results show good agreement with theoretical and experimental results of other investigators. To some extent, the present results are compared with structural design codes.}},
  author       = {{Olsson, Mats}},
  keywords     = {{Moving loads; Bridge; Guideway; Structural dynamics; Structure-vehicle interaction; Finite element method; Modal analysis; Beams; frames; Torsion; Warping; Breaking; Numerical simulations; Dynamic magnification; Design}},
  language     = {{eng}},
  number       = {{TVSM-1003}},
  publisher    = {{Division of Structural Mechanics, LTH}},
  series       = {{TVSM-1000}},
  title        = {{Analysis of Structures Subjected to Moving Loads}},
  url          = {{https://lup.lub.lu.se/search/files/177857298/web1003.pdf}},
  year         = {{1986}},
}