Electromagnetic and structural coupled analysis with the effect of large deflection
- Kyushu Inst. of Technology, Iizuka, Fukuoka (Japan). Dept. of Mechanical System Engineering
In the designs of future fusion reactors and magnetic levitated vehicles, thin shell conducting structures are located in a high electromagnetic field. The transient magnetic field induces the eddy current on the conductive structure. While the Lorentz force by the eddy current and the magnetic field is loaded to the thin shell structure, the electromotive force by the deflection velocity and magnetic field reduces the eddy current. Therefore, the electromagnetic and structural coupled analysis is required for the design of these components. This paper describes a coupled finite element analysis for the eddy current and the structure. A formulation is presented considering the effect of the large deflection of shell structures by the total Lagrangian formulation. Both matrix equations for the eddy current and the structure are solved simultaneously using coupling sub-matrices. A coupled problem of a cantilever bending plate is analyzed. Based on the analysis results, the influence of the large deflection on the coupling effect is discussed. The condition that the large deflection analysis is required is examined through some parametric analyses.
- OSTI ID:
- 462653
- Report Number(s):
- CONF-960725--
- Journal Information:
- IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 2Pt2 Vol. 33; ISSN IEMGAQ; ISSN 0018-9464
- Country of Publication:
- United States
- Language:
- English
Similar Records
Coupling between angular deflection and eddy currents in the FELIX plate experiment
Experimental modelling of eddy currents and deflection for tokamak limiters