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Optimization of Iron Core Structure for Controlling Induced Electric Field Distribution Using the Continuum Design Sensitivity Analysis (CDSA)  

Park Joon-Goo (경북대학교 전자전기컴퓨터학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers D / v.55, no.8, 2006 , pp. 397-400 More about this Journal
Abstract
An optimized iron core structure of stimulating coil are presented in order to control the induced electric field distribution using the Continuum Design Sensitivity Analysis (CDSA) combined with a commercially available generalized finite element code (OPERA). The results show that a Figure-Of-Eight (FOE) coil as well as a circular coil with the proposed iron core structure can increase induced electric field intensity by more than two times and make better field localization, compared with those of existing stimulation coil with a air core. After considering manufacturing constraints, a practical iron core structure based on the proposed optimized one is proposed and its performance is analyzed.
Keywords
Design Sensitivity Analysis; Finite Element Code (OPERA); Induced Electric Field; Optimized Iron Core;
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