• Towards computing ratcheting a...

Result: Towards computing ratcheting and training in superconducting magnets

Title:
Towards computing ratcheting and training in superconducting magnets
Authors:
FERRACIN, P, CASPI, S, LIETZKE, A. F
Source:
The 2006 applied superconductivity conference, Seattle, WA, August 27-September 1, 2006. Part II of three partsIEEE transactions on applied superconductivity. 17(2):2373-2376
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2007.
Publication Year:
2007
Physical Description:
print, 13 ref 2
Original Material:
INIST-CNRS
Subject Terms:
Electronics, Electronique, Electrical engineering, Electrotechnique, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Electronique, Electronics, Electronique des semiconducteurs. Microélectronique. Optoélectronique. Dispositifs à l'état solide, Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices, Dispositifs à ondes acoustiques, piézoélectriques, piézorésistifs, Acoustic wave devices, piezoelectric and piezoresistive devices, Electrotechnique. Electroenergetique, Electrical engineering. Electrical power engineering, Matériel électrique divers, Various equipment and components, Electroaimants, Electromagnets, Aimant, Magnet, Imán, Apprentissage, Learning, Aprendizaje, Champ intense, High field, Campo intenso, Comportement thermique, Thermal behavior, Comportamiento térmico, Electroaimant supraconducteur, Superconducting magnet, Electroimán supraconductor, Etude comparative, Comparative study, Estudio comparativo, Force Lorentz, Lorentz force, Fuerza Lorentz, Frottement, Friction, Frotamiento, Jauge contrainte, Resistance strain gauge, Gauge tensión, Mesure déformation, Deformation measurement, Medición deformación, Modèle 3 dimensions, Three dimensional model, Modelo 3 dimensiones, Méthode numérique, Numerical method, Método numérico, Méthode élément fini, Finite element method, Método elemento finito, Processus irréversible, Irreversible process, Proceso irreversible, Refroidissement, Cooling, Enfriamiento, Trempe, Quenching, Temple, Ratcheting, superconducting magnet, training
Document Type:
Conference Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Lawrence Berkeley National Lab, Berkeley, CA 94720, United States
ISSN:
1051-8223
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=19016752
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Electrical engineering. Electroenergetics

Electronics
Accession Number:
edscal.19016752
Database:
PASCAL Archive

Further Information

The Superconducting Magnet Group at Lawrence Berkeley National Laboratory (LBNL) has been developing 3D finite element models to predict the behavior of high field Nb3Sn superconducting magnets. The models track the coil response during assembly, cool-down, and excitation, with particular interest on displacements when frictional forces arise. As Lorentz forces were cycled, irreversible displacements were computed and compared with strain gauge measurements. Additional analysis was done on the local frictional energy released during magnet excitation, and the resulting temperature rise. Magnet quenching and training was correlated to the level of energy release during such mechanical displacements under frictional forces. We report in this paper the computational results of the ratcheting process, the impact of friction, and the path-dependent energy release leading to a computed magnet training curve.