Affiliations: [a] Shaanxi Engineering Research Center of NDT and Structural Integrity Evaluation, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China | [b] Institute of Chemical Material, China Academy of Engineering Physics, Mianyang, Sichuan, China | [c] Southwestern Institute of Physics, Chengdu 610041, Sichuan, China
Correspondence:
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Corresponding author: Zhenmao Chen, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China. Tel./Fax: +86 29 8266 8736; E-mail: [email protected].
Abstract: In this work, a numerical method using a direct coupling algorithm is proposed for electromagneto-thermo-mechanical (EMTM) coupling analysis of structures in strong magnetic and thermal field. Both the electromagneto-mechanical (EMM) coupling effect and thermal effect are considered in the structural dynamical analysis. To realize this algorithm, a direct coupling element including degrees of freedom of displacement, temperature and electromagnetic fields is developed on the platform of the ANSYS user programmable features and verified by the comparison between the experimental data and simulation results of a typical EMTM problem. Finally, the EMTM dynamic response of a simplified model of the HL-2M vacuum vessel during plasma vertical disruption events is simulated. According to the simulation results, the EMTM coupling effect is found significant and necessary to be considered for the design and safety evaluation of Tokamak structures.
