Study on the Stress of 500 MHz NMR Magnet Coils With Detailed FE Model

Author

Zhang, Hongjie ; Wang, Qiuliang ; Li, Xiaqing ; Wang, Wei ; Ma, Jinglan

Author_Institution

Beijing Inst. of Petrochem. Technol., Beijing, China

Volume

21

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

2304

Lastpage

2307

Abstract

A superconducting magnet was developed for high magnetic field nuclear magnetic resonance by the Institute of Electrical Engineering, Chinese Academy of Sciences. The superconducting coils are fabricated with various superconducting wires in diameter to improve the performance of the magnet. For adjacent coils mechanically dependent, large difference in diameter of superconducting wires will increase the electromagnetic stress between one coil and the neighbor. In the paper, a detailed finite element model for solenoid magnets was developed using the program ANSYS and employed to solve the stress caused by the diameter change of superconducting wires. The reasonable range of the diameter of superconducting wires of adjacent coils is presented.

Keywords

finite element analysis; nuclear magnetic resonance; superconducting coils; superconducting magnets; ANSYS program; NMR magnet coils; finite element model; frequency 500 MHz; high magnetic field nuclear magnetic resonance; solenoid magnets; superconducting coils; superconducting magnet; superconducting wires; Coils; Magnetomechanical effects; Solenoids; Stress; Superconducting filaments and wires; Superconducting magnets; Wire; Detailed finite element model; difference in the diameter of superconducting wires; nuclear magnetic resonance; superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2092405

Filename

5672814