A Moving Coordinate Numerical Method for Analyses of Electromagneto-Mechanical Coupled Behavior of Structures in a Strong Magnetic Field Aiming at Application to Tokamak Structures  

作　　者：李炜昕 袁振圣 陈振茂 

机构地区：[1]State Key Laboratory for Strength and Vibration of Mechanical Structures,Xi'an Jiaotong University

出　　处：《Plasma Science and Technology》2014年第12期1163-1170,共8页等离子体科学和技术（英文版）

基　　金：supported by National Magnetic Confinement Fusion Program of China(No.2013GB113005);the National Natural Science Foundation of China(Nos.51277139,11321062);the National 973 Program of China(No.2011CB610303)

摘　　要：Analysis of the electromagneto-mechanical coupling effect contributes greatly to the high accuracy estimation of the EM load of many EM devices, such as a tokamak structure during plasma disruption. This paper presents a method for the numerical analysis of the electromagnetomechanical coupling effect on the basis of Maxwell＇s equations in the Lagrangian description and staggered load transfer scheme, which can treat the coupled behaviors of magnetic damping and magnetic stiffness effects at the same time. Codes were developed based on the ANSYS development platform and were applied to solve two typical numerical examples： the TEAM Problem 16 and dynamic behavior analysis of a shallow arch under electromagnetic force. The good consistency of numerical results and experimental data demonstrates the validity and accuracy of the proposed method and the related numerical codes.Analysis of the electromagneto-mechanical coupling effect contributes greatly to the high accuracy estimation of the EM load of many EM devices, such as a tokamak structure during plasma disruption. This paper presents a method for the numerical analysis of the electromagnetomechanical coupling effect on the basis of Maxwell＇s equations in the Lagrangian description and staggered load transfer scheme, which can treat the coupled behaviors of magnetic damping and magnetic stiffness effects at the same time. Codes were developed based on the ANSYS development platform and were applied to solve two typical numerical examples： the TEAM Problem 16 and dynamic behavior analysis of a shallow arch under electromagnetic force. The good consistency of numerical results and experimental data demonstrates the validity and accuracy of the proposed method and the related numerical codes.

关 键 词：plasma disruption induced eddy current electromagnetic loads electromagneto-mechanical coupling lagrangian method 

分 类 号：TL631.24[核科学技术—核技术及应用]