Title :
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
fDate :
6/1/2006 12:00:00 AM
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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.864305
