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Vibration Analysis of Underground Tunnel at High-Tech Facility

Negreira, Juan LU ; Persson, Kent LU ; Bard, Delphine LU ; Austrell, Per Erik LU and Sandberg, Göran LU (2010) NSCM 23 In 23th Nordic Seminar of Computational Mechanics (NSCM 23)
Abstract
MAX-lab is a national laboratory operated jointly by the Swedish Research Council and Lund University. Nowadays it consists of three storage rings and one electron pre-accelerator. Due to the improvement of nanotechnology, a new storage ring is needed. Hence, MAX IV will be 100 times more efficient than already existing synchrotron radiation facilities, becoming a leading facility for studies of particles at a nano-level4.



MAX IV will consist basically in one circular-storage-ring and one linear underground tunnel (Linac) next to it. Both the ring and the Linac converge at one point, where the electrons have already almost reached the speed of light after being accelerated along the tunnel and are then shot into the... (More)
MAX-lab is a national laboratory operated jointly by the Swedish Research Council and Lund University. Nowadays it consists of three storage rings and one electron pre-accelerator. Due to the improvement of nanotechnology, a new storage ring is needed. Hence, MAX IV will be 100 times more efficient than already existing synchrotron radiation facilities, becoming a leading facility for studies of particles at a nano-level4.



MAX IV will consist basically in one circular-storage-ring and one linear underground tunnel (Linac) next to it. Both the ring and the Linac converge at one point, where the electrons have already almost reached the speed of light after being accelerated along the tunnel and are then shot into the ring so they can begin to spin around. The beam line is then bent with magnets in order to produce the so-called synchrotron light.



In this investigation, the vibration levels at the Linac were analyzed. Since this construction will be used for high precision measurements, it will be asked to have a very strict vibration requirement where only very low vibration levels will be allowed.



Real finite element models of the Linac were established in order to analyse the influence of the surrounding vibration sources (e.g. traffic) on the tunnel. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Vibrations, MAX-IV, Finite Element Method
in
23th Nordic Seminar of Computational Mechanics (NSCM 23)
pages
4 pages
conference name
NSCM 23
language
English
LU publication?
yes
id
276ca356-3eda-46af-a319-226c34dfcd9f (old id 3172902)
date added to LUP
2012-11-20 10:12:25
date last changed
2016-04-16 10:46:07
@misc{276ca356-3eda-46af-a319-226c34dfcd9f,
  abstract     = {MAX-lab is a national laboratory operated jointly by the Swedish Research Council and Lund University. Nowadays it consists of three storage rings and one electron pre-accelerator. Due to the improvement of nanotechnology, a new storage ring is needed. Hence, MAX IV will be 100 times more efficient than already existing synchrotron radiation facilities, becoming a leading facility for studies of particles at a nano-level4. <br/><br>
<br/><br>
MAX IV will consist basically in one circular-storage-ring and one linear underground tunnel (Linac) next to it. Both the ring and the Linac converge at one point, where the electrons have already almost reached the speed of light after being accelerated along the tunnel and are then shot into the ring so they can begin to spin around. The beam line is then bent with magnets in order to produce the so-called synchrotron light.<br/><br>
<br/><br>
In this investigation, the vibration levels at the Linac were analyzed. Since this construction will be used for high precision measurements, it will be asked to have a very strict vibration requirement where only very low vibration levels will be allowed.<br/><br>
<br/><br>
Real finite element models of the Linac were established in order to analyse the influence of the surrounding vibration sources (e.g. traffic) on the tunnel.},
  author       = {Negreira, Juan and Persson, Kent and Bard, Delphine and Austrell, Per Erik and Sandberg, Göran},
  keyword      = {Vibrations,MAX-IV,Finite Element Method},
  language     = {eng},
  pages        = {4},
  series       = {23th Nordic Seminar of Computational Mechanics (NSCM 23)},
  title        = {Vibration Analysis of Underground Tunnel at High-Tech Facility},
  year         = {2010},
}