ICONE19-43747 Numerical Simulation of Dynamic Response of a Typical Tokomak Structure during Plasma Disruption with Consideration of Electromagneto-mechanical Coupling

In this paper, a numerical method is proposed for simulating dynamic response of a ferromagnetic structure immersed in a strong magnetic field aiming at applications to the in vessel Tokamak structure of RAFM steel. The magnetic damping coupling effect and the magnetic stiffness coupling effect are considered in the numerical simulation. For simple, the static magnetic field is supposed very strong and the material is considered saturated in this work, i.e., the material is of air permeability but with a strong residual magnetization. To demonstrate the validity of the numerical method, the dynamic response of a ferromagnetic plate immersed in a transient transverse magnetic field with in-plane magnetic field component is simulated with the developed numerical code and compared with the simulated results with ANSYS. The good consistency of numerical results and simulation results demonstrated the validity of the proposed method and the corresponding numerical code.

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Dynamic analysis of a ferromagnetic structure in strong magnetic field with electromagneto-mechanical coupling

Yuan

Pei

et al. 2014

International Journal of Applied Electromagnetics and Mechanics

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A method for electromagneto-thermo- mechanical direct coupling analysis and its application to Tokamak structures

Ma¹,

Zhao²,

Ma³

2017

International Journal of Applied Electromagnetics and Mechanics

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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.

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ICONE19-43747 Numerical Simulation of Dynamic Response of a Typical Tokomak Structure during Plasma Disruption with Consideration of Electromagneto-mechanical Coupling

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Dynamic analysis of a ferromagnetic structure in strong magnetic field with electromagneto-mechanical coupling

Dynamic analysis of a ferromagnetic structure in strong magnetic field with electromagneto-mechanical coupling

A method for electromagneto-thermo- mechanical direct coupling analysis and its application to Tokamak structures

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