Title :
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
fDate :
6/1/2011 12:00:00 AM
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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2092405
