A Method to Determine the Flexural Rigidity of the Main Dipole for the Large Hadron Collider

The Large Hadron Collider (LHC) superconducting dipole cold mass is a cylindrical structure 15 m long, made of a shrinking cylinder which contains iron laminations and collared coils. This structure, weighing about 28 ton is horizontally bent by 5 mrad. Its shape should be preserved from the assembl...

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Detalles Bibliográficos
Autores principales: La China, M, Cavallari, Giorgio, Ferracin, P, García-Pérez, J, Todesco, Ezio, Scandale, Walter
Lenguaje:eng
Publicado: 2002
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1109/TASC.2003.812655
http://cds.cern.ch/record/599388
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author La China, M
Cavallari, Giorgio
Ferracin, P
García-Pérez, J
Todesco, Ezio
Scandale, Walter
author_facet La China, M
Cavallari, Giorgio
Ferracin, P
García-Pérez, J
Todesco, Ezio
Scandale, Walter
author_sort La China, M
collection CERN
description The Large Hadron Collider (LHC) superconducting dipole cold mass is a cylindrical structure 15 m long, made of a shrinking cylinder which contains iron laminations and collared coils. This structure, weighing about 28 ton is horizontally bent by 5 mrad. Its shape should be preserved from the assembly phase to the operational condition at cryogenic temperature. Hence an accurate comprehension of the mechanical behaviour of the cold mass is required. In particular the flexural rigidity in horizontal and vertical directions represents one of the foremost properties to be aware of. To determine the flexural rigidity, deformations of the cold mass induced by the self weight have been measured and compared with the predictions of an analytical structural model. A particular care has been taken in reducing the experimental error by an appropriate fitting procedure.
id cern-599388
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2002
record_format invenio
spelling cern-5993882023-05-31T13:21:31Zdoi:10.1109/TASC.2003.812655http://cds.cern.ch/record/599388engLa China, MCavallari, GiorgioFerracin, PGarcía-Pérez, JTodesco, EzioScandale, WalterA Method to Determine the Flexural Rigidity of the Main Dipole for the Large Hadron ColliderAccelerators and Storage RingsThe Large Hadron Collider (LHC) superconducting dipole cold mass is a cylindrical structure 15 m long, made of a shrinking cylinder which contains iron laminations and collared coils. This structure, weighing about 28 ton is horizontally bent by 5 mrad. Its shape should be preserved from the assembly phase to the operational condition at cryogenic temperature. Hence an accurate comprehension of the mechanical behaviour of the cold mass is required. In particular the flexural rigidity in horizontal and vertical directions represents one of the foremost properties to be aware of. To determine the flexural rigidity, deformations of the cold mass induced by the self weight have been measured and compared with the predictions of an analytical structural model. A particular care has been taken in reducing the experimental error by an appropriate fitting procedure.LHC-Project-Report-622CERN-LHC-Project-Report-622oai:cds.cern.ch:5993882002-12-12
spellingShingle Accelerators and Storage Rings
La China, M
Cavallari, Giorgio
Ferracin, P
García-Pérez, J
Todesco, Ezio
Scandale, Walter
A Method to Determine the Flexural Rigidity of the Main Dipole for the Large Hadron Collider
title A Method to Determine the Flexural Rigidity of the Main Dipole for the Large Hadron Collider
title_full A Method to Determine the Flexural Rigidity of the Main Dipole for the Large Hadron Collider
title_fullStr A Method to Determine the Flexural Rigidity of the Main Dipole for the Large Hadron Collider
title_full_unstemmed A Method to Determine the Flexural Rigidity of the Main Dipole for the Large Hadron Collider
title_short A Method to Determine the Flexural Rigidity of the Main Dipole for the Large Hadron Collider
title_sort method to determine the flexural rigidity of the main dipole for the large hadron collider
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1109/TASC.2003.812655
http://cds.cern.ch/record/599388
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