August 27, 2017 to September 1, 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

FEA Model and Mechanical Analysis of the Nb3Sn 15 T Dipole Demonstrator

Aug 30, 2017, 1:15 PM
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m A1 - Superconducting Accelerator Magnets Wed-Af-Po3.01


Charilaos Kokkinos (FEAC Engineering P.C.)


Nb3Sn magnets with a nominal operation field of 15-16 T are being considered for the LHC energy upgrade (HE-LHC) and a post-LHC Future Circular Collider (FCC). To demonstrate the feasibility of 15 T accelerator quality dipole magnets, the US Magnet Development Program (MDP) is developing a single-aperture 15 T Nb3Sn dipole demonstrator based on a 4-layer graded cos-theta coil with 60 mm aperture and cold iron yoke. The main design challenges for 15 T accelerator magnets include large Lorentz forces at this field level. To counteract them, an innovative mechanical structure based on a vertically split iron yoke, locked by large aluminum IC-clamps and supported by a thick stainless steel skin, has been developed at Fermilab. To study the performance of the structure a parametric multi-physics FEA model has been set-up by FEAC. This paper describes the numerical model as well as the results of a sensitivity analysis of the effect of geometrical tolerances and assembly parameters.
*Work is supported by Fermi Research Alliance, LLC, under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy

Submitters Country GREECE

Primary author

Charilaos Kokkinos (FEAC Engineering P.C.)


Igor Novitski (FERMILAB) Mr Sotiris Kokkinos (FEAC Engineering P.C.) Dr Demosthenis Polyzos (University of Patras) Davide Tommasini (CERN) Mr Panagiotis Lymperopoulos (University of Patras) Mr Giannis Apostolidis (FEAC Engineering P.C.) Justin Carlmichael (FERMILAB) Daniel Schoerling (CERN) Mr Konstantinos Loukas (FEAC Engineering P.C.) Alexander Zlobin (Fermilab) Dr Thodoris Gortsas (University of Patras)

Presentation materials