Experimental modelling of eddy currents and deflection for tokamak limiters

Conference · Sat Nov 01 00:00:00 EST 1986 · Fusion Technol.; (United States)

OSTI ID:6905815

Hua, T Q; Knott, M J; Turner, L R; Wehrle, R B

During plasma disruptions in a tokamak fusion reactor, eddy currents are induced in the limiters and other conducting structures surrounding the plasma. Interactions between these currents with the toroidal field causes deflection and stress in the structural components. The structural motion in the strong magnetic field induces additional eddy current opposing the initial eddy current and modifying subsequent structural dynamics. Therefore, the motion and current are coupled and must be solved simultaneously. The coupling between current and deflection in cantilevered beams was investigated experimentally. The beams provide a simple model for the limiter blade of a tokamak fusion reactor. Several test pieces and various magnetic field conditions were employed to study the extend of the coupling effect from weak to strong coupling. Experimental results are compared with analytical predictions.

• Research Organization: Argonne National Lab., 9700 South Cass Avenue, Argonne, IL 60439
• OSTI ID: 6905815
• Report Number(s): CONF-860652-; TRN: 87-007672
• Journal Information: Fusion Technol.; (United States), Vol. 10:3; Conference: 7. topical meeting on the technology of fusion energy, Reno, NV, USA, 15 Jun 1986
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
EDDY CURRENTS
MATHEMATICAL MODELS
LIMITERS
TOKAMAK TYPE REACTORS
PLASMA DISRUPTION
COUPLING
DATA ANALYSIS
DYNAMICS
MAGNETIC FIELDS
RESEARCH PROGRAMS
STRESSES
TOROIDAL CONFIGURATION
ANNULAR SPACE
CONFIGURATION
CURRENTS
ELECTRIC CURRENTS
MECHANICS
SPACE
THERMONUCLEAR REACTORS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing