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Reduced order modelling of liquid-filled pipe systems

Persson, Peter LU ; Persson, Kent LU and Sandberg, Göran LU (2016) In Journal of Fluids and Structures 61. p.205-217
Abstract

In the design of vibration-sensitive structures, large three-dimensional numerical models are frequently used, those occasionally being too large to be simulated in a practical manner. More specifically, the analyses of vibrating complex water-pipe systems require efficient model order reduction strategies. In the paper, a numerical procedure for model order reduction of a water-pipe system housed in a vibration-sensitive research facility is presented. The finite element model employed includes a water-pipe system where fluid-structure interaction effects are accounted for. The reduced model is developed using component mode synthesis and a reduction of the interface degrees of freedom, enabling time-efficient dynamic analyses. The... (More)

In the design of vibration-sensitive structures, large three-dimensional numerical models are frequently used, those occasionally being too large to be simulated in a practical manner. More specifically, the analyses of vibrating complex water-pipe systems require efficient model order reduction strategies. In the paper, a numerical procedure for model order reduction of a water-pipe system housed in a vibration-sensitive research facility is presented. The finite element model employed includes a water-pipe system where fluid-structure interaction effects are accounted for. The reduced model is developed using component mode synthesis and a reduction of the interface degrees of freedom, enabling time-efficient dynamic analyses. The model was proven to be time-efficient and to generate output of high accuracy.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Component mode synthesis, Finite element method, Fluid-structure interaction, Interface reduction, Liquid-filled pipes
in
Journal of Fluids and Structures
volume
61
pages
13 pages
publisher
Elsevier
external identifiers
  • scopus:84957887069
  • wos:000371551800012
ISSN
0889-9746
DOI
10.1016/j.jfluidstructs.2015.10.012
language
English
LU publication?
yes
id
1349e160-940a-4abb-9e2d-c7329e75bbad
date added to LUP
2016-06-16 10:03:57
date last changed
2017-04-02 04:29:12
@article{1349e160-940a-4abb-9e2d-c7329e75bbad,
  abstract     = {<p>In the design of vibration-sensitive structures, large three-dimensional numerical models are frequently used, those occasionally being too large to be simulated in a practical manner. More specifically, the analyses of vibrating complex water-pipe systems require efficient model order reduction strategies. In the paper, a numerical procedure for model order reduction of a water-pipe system housed in a vibration-sensitive research facility is presented. The finite element model employed includes a water-pipe system where fluid-structure interaction effects are accounted for. The reduced model is developed using component mode synthesis and a reduction of the interface degrees of freedom, enabling time-efficient dynamic analyses. The model was proven to be time-efficient and to generate output of high accuracy.</p>},
  author       = {Persson, Peter and Persson, Kent and Sandberg, Göran},
  issn         = {0889-9746},
  keyword      = {Component mode synthesis,Finite element method,Fluid-structure interaction,Interface reduction,Liquid-filled pipes},
  language     = {eng},
  month        = {02},
  pages        = {205--217},
  publisher    = {Elsevier},
  series       = {Journal of Fluids and Structures},
  title        = {Reduced order modelling of liquid-filled pipe systems},
  url          = {http://dx.doi.org/10.1016/j.jfluidstructs.2015.10.012},
  volume       = {61},
  year         = {2016},
}