A Non-Linear Finite Element Model for the LHC Main Dipole Coil Cross-Section

Author

Pojer, Mirko ; Devred, Arnaud ; Scandale, Walter

Author_Institution

Accelerator Technol. Dept., CERN, Geneva

Volume

16

Issue

2

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

1294

Lastpage

1297

Abstract

The production of the dipole magnets for the Large Hadron Collider is at its final stage. Nevertheless, some mechanical instabilities are still observed for which no clear explanation has been found yet. A FE modelization of the dipole cold mass cross-section had already been developed at CERN, mainly for magnetic analysis, taking into account conductor blocks and a frictionless behavior. This paper describes a new ANSYS model of the dipole coil cross-section, featuring individual turns inside conductor blocks, and implementing friction and the mechanical non-linear behavior of insulated cables. Preliminary results, comparison with measurements performed in industry and ongoing developments are discussed

Keywords

accelerator magnets; finite element analysis; friction; storage rings; superconducting cables; superconducting coils; superconducting magnets; synchrotrons; ANSYS model; LHC main dipole coil cross-section; Large Hadron Collider; conductor blocks; dipole cold mass cross-section; dipole magnets production; friction; frictionless behavior; insulated cables; magnetic analysis; mechanical instabilities; mechanical nonlinear behavior; nonlinear finite element model; superconducting dipole magnet; Cable insulation; Coils; Conductors; Finite element methods; Friction; Large Hadron Collider; Magnetic analysis; Magnets; Mechanical cables; Production; Finite element model; LHC; superconducting dipole magnet;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.864305

Filename

1643088