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Vibration reduction by landscape shaping at high-tech facility.

Persson, Peter LU ; Persson, Kent LU ; Jörstad, Per and Sandberg, Göran LU (2012) 10th World Congress on Computational Mechanics In Blucher Mechanical Engineering Proceedings 1(1). p.1901-1917
Abstract (Swedish)
Abstract in Undetermined

This paper presents a numerical study on the reduction of vibrations in the ground. The influence of landscape shaping to reduce vibration levels induced by traffic is investi-gated by means of the finite element method with dynamic analyses. Both two-dimensional as well as three-dimensional finite element models are employed for the investigations. A har-monic point force is applied where the force is scaled to represent the frequency dependent traffic load. Finally, the vibration reduction effect is evaluated by comparing RMS-values at a number of different evaluation points. It is concluded from the analyses that the two-dimensional and three-dimensional models correlates fairly well. The... (More)
Abstract in Undetermined

This paper presents a numerical study on the reduction of vibrations in the ground. The influence of landscape shaping to reduce vibration levels induced by traffic is investi-gated by means of the finite element method with dynamic analyses. Both two-dimensional as well as three-dimensional finite element models are employed for the investigations. A har-monic point force is applied where the force is scaled to represent the frequency dependent traffic load. Finally, the vibration reduction effect is evaluated by comparing RMS-values at a number of different evaluation points. It is concluded from the analyses that the two-dimensional and three-dimensional models correlates fairly well. The performance of a hill is increased if it is preceded by a valley but when applying more valleys than hills, amplification may occur. When using continuous hills instead of a checkered pattern, the hills seem to cap-ture and guide waves in the direction of the hill. Locally this could reduce vibrations of sig-nificant importance. Applying the constraints given within the numerical example, vibration reductions of approximately 20 % could be seen. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Shaped landscape, Vibration reduction, Wave propagation, Soil dynamics, Finite element method.
in
Blucher Mechanical Engineering Proceedings
volume
1
issue
1
pages
1901 - 1917
publisher
Editora Blucher
conference name
10th World Congress on Computational Mechanics
ISSN
2358-0828
DOI
10.5151/meceng-wccm2012-18588
language
English
LU publication?
yes
id
f2d51cf1-db84-43cd-84e1-57a6b7e83308 (old id 3164283)
date added to LUP
2012-11-13 12:52:32
date last changed
2016-04-16 00:50:01
@inproceedings{f2d51cf1-db84-43cd-84e1-57a6b7e83308,
  abstract     = {<b>Abstract in Undetermined</b><br/><br>
This paper presents a numerical study on the reduction of vibrations in the ground. The influence of landscape shaping to reduce vibration levels induced by traffic is investi-gated by means of the finite element method with dynamic analyses. Both two-dimensional as well as three-dimensional finite element models are employed for the investigations. A har-monic point force is applied where the force is scaled to represent the frequency dependent traffic load. Finally, the vibration reduction effect is evaluated by comparing RMS-values at a number of different evaluation points. It is concluded from the analyses that the two-dimensional and three-dimensional models correlates fairly well. The performance of a hill is increased if it is preceded by a valley but when applying more valleys than hills, amplification may occur. When using continuous hills instead of a checkered pattern, the hills seem to cap-ture and guide waves in the direction of the hill. Locally this could reduce vibrations of sig-nificant importance. Applying the constraints given within the numerical example, vibration reductions of approximately 20 % could be seen.},
  author       = {Persson, Peter and Persson, Kent and Jörstad, Per and Sandberg, Göran},
  booktitle    = {Blucher Mechanical Engineering Proceedings},
  issn         = {2358-0828},
  keyword      = {Shaped landscape,Vibration reduction,Wave propagation,Soil dynamics,Finite element method.},
  language     = {eng},
  number       = {1},
  pages        = {1901--1917},
  publisher    = {Editora Blucher},
  title        = {Vibration reduction by landscape shaping at high-tech facility.},
  url          = {http://dx.doi.org/10.5151/meceng-wccm2012-18588},
  volume       = {1},
  year         = {2012},
}