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Engineering Analyses of NCSX Modular Coil and Its Supporting Structure for EM Loads.

DE2004820121

Publication Date	2003
Personal Author	Fan, H. M.; Williamson, D.
Page Count	12
Abstract	NCSX modular coil is a major parts of the NCSX coil systems that surround the highly shaped plasma and vacuum vessel. The flexible copper cable conductors are used to form modular coil on both sides of the 'tee' beam, which is cast inside the supporting shell structure. The Engineering analyses comprise sequentially coupled-field analyses that include an electromagnetic analysis to calculate the magnetic fields and EM forces, and a structural analysis to evaluate the structural responses. In the sequential EM-structural analysis, nodal forces obtained from the EM analysis were applied as 'nodal force' loads in the subsequent stress analysis using the identical nodal points and elements. The shell model was imported directly from Pro/ENGINEER files in order to obtain an accurate structural representation. The Boolean operations provided by the ANSYS preprocessor were then applied to subdivide the solid model for more desirable finite element meshing. Material properties of the modular coil were based on test results. Analyses using the ANSYS program to evaluate structural responses of the complicated modular coil systems provided a clear understanding of the structural behaviors and the directions for improving the structural design.
Keywords	Modular structures Coils Plasma Structural analysis Engineering Loads (Forces) Analyses T shape Shells (Structural forms) Electromagnetism Magnetic fields Evaluation Boolean functions Finite element analysis NCSX coil systems Copper cable conductors EM (Electromagnetic) Vacuum vessel ANSYS code
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Princeton Univ., NJ. Plasma Physics Lab.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200415

Engineering Analyses of NCSX Modular Coil and Its Supporting Structure for EM Loads.

Engineering Analyses of NCSX Modular Coil and Its Supporting Structure for EM Loads.
DE2004820121

Publication Date	2003
Personal Author	Fan, H. M.; Williamson, D.
Page Count	12
Abstract	NCSX modular coil is a major parts of the NCSX coil systems that surround the highly shaped plasma and vacuum vessel. The flexible copper cable conductors are used to form modular coil on both sides of the 'tee' beam, which is cast inside the supporting shell structure. The Engineering analyses comprise sequentially coupled-field analyses that include an electromagnetic analysis to calculate the magnetic fields and EM forces, and a structural analysis to evaluate the structural responses. In the sequential EM-structural analysis, nodal forces obtained from the EM analysis were applied as 'nodal force' loads in the subsequent stress analysis using the identical nodal points and elements. The shell model was imported directly from Pro/ENGINEER files in order to obtain an accurate structural representation. The Boolean operations provided by the ANSYS preprocessor were then applied to subdivide the solid model for more desirable finite element meshing. Material properties of the modular coil were based on test results. Analyses using the ANSYS program to evaluate structural responses of the complicated modular coil systems provided a clear understanding of the structural behaviors and the directions for improving the structural design.
Keywords	Modular structures Coils Plasma Structural analysis Engineering Loads (Forces) Analyses T shape Shells (Structural forms) Electromagnetism Magnetic fields Evaluation Boolean functions Finite element analysis NCSX coil systems Copper cable conductors EM (Electromagnetic) Vacuum vessel ANSYS code
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Princeton Univ., NJ. Plasma Physics Lab.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200415