TY - JOUR
T1 - Examination of optimal design method of electromagnetic shield using ON/OFF method
AU - Takahashi, Norio
AU - Nakazaki, Shunsuke
AU - Miyagi, Daisuke
N1 - Funding Information:
This research was supported in part by “The Subsidy to Promote Science and Technology in the Prefectures where Nuclear Power Plants and Other Power Plants are Located”.
Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2009/3
Y1 - 2009/3
N2 - The topology optimization, which determines the optimal topology of nonmagnetic material in which the eddy current flows, such as an electromagnetic shield, by distributing the nonmagnetic conducting materials in the design domain, is attractive for designers of magnetic devices, because an initial conceptual design can be obtained. In this paper, the on/off method which was developed for the static field problem is extended to the dynamic field problem. The method makes them particularly useful in topology optimization, where the parameterization enables all feasible shapes of electromagnetic devices to be explored. We applied the on/off sensitivity method to the steady state linear eddy current problem in order to determine the optimal topology of the electromagnetic shield. As a result, the optimal shape of electromagnetic shield, which we could not imagine beforehand can be obtained using the on/off method.
AB - The topology optimization, which determines the optimal topology of nonmagnetic material in which the eddy current flows, such as an electromagnetic shield, by distributing the nonmagnetic conducting materials in the design domain, is attractive for designers of magnetic devices, because an initial conceptual design can be obtained. In this paper, the on/off method which was developed for the static field problem is extended to the dynamic field problem. The method makes them particularly useful in topology optimization, where the parameterization enables all feasible shapes of electromagnetic devices to be explored. We applied the on/off sensitivity method to the steady state linear eddy current problem in order to determine the optimal topology of the electromagnetic shield. As a result, the optimal shape of electromagnetic shield, which we could not imagine beforehand can be obtained using the on/off method.
KW - Eddy-current problem
KW - Forward difference method
KW - On/off method
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U2 - 10.1109/TMAG.2009.2012738
DO - 10.1109/TMAG.2009.2012738
M3 - Article
AN - SCOPUS:61449095737
SN - 0018-9464
VL - 45
SP - 1546
EP - 1549
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 3
M1 - 4787404
ER -