Optimization of Electromagnetic and Magnetic Shielding Using ON/OFF Method

被引：14

作者：

Takahashi, Norio ^{[1
]}

Nakazaki, Shunsuke ^{[1
]}

Miyagi, Daisuke ^{[1
]}

机构：

[1] Okayama Univ, Dept Elect & Elect Engn, Okayama 7008530, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2010年 / 46卷 / 08期

基金：

日本学术振兴会;

关键词：

Eddy current problem; electromagnetic shielding; magnetic shielding; ON/OFF method; step-by-step method; DESIGN; HEAD;

D O I：

10.1109/TMAG.2010.2044383

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The ON/OFF method which was developed for the static field problem is extended to the dynamic field problem. 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 and magnetic shield. As a result, a surprising optimal shape of electromagnetic and magnetic shield, which we could not imagine beforehand can be obtained using the ON/OFF method. A criterion of how to choose the sensitivity with respect to the reluctivity or conductivity is discussed. It is shown that the ON/OFF method can be used for the design of electromagnetic or magnetic shielding, even when the material is the magnetic steel sheet which have two kinds of variables, magnetic permeability and conductivity. The best shielding configuration can be obtained for each frequency by adopting the result with a larger design sensitivity.

引用

页码：3153 / 3156

页数：4

共 5 条

[1] Design of CF-SPT head having large recording field and small stray field using 3-D ON/OFF method [J].

Akiyama, Koji ;

Miyagi, Daisuke ;

Takahashi, Norio .

IEEE TRANSACTIONS ON MAGNETICS, 2006, 42 (10) :2431-2433

[2]

Blank M., 1995, Electromagnetic Fields Biological Interactions and Mechanisms

[3]

Horton W. F., 1995, POWER FREQUENCY MAGN

[4] 3-D topology optimization of single-pole-type head by using design sensitivity analysis [J].

Okamoto, Y ;

Akiyama, K ;

Takahashi, N .

IEEE TRANSACTIONS ON MAGNETICS, 2006, 42 (04) :1087-1090

[5] Examination of Optimal Design Method of Electromagnetic Shield Using ON/OFF Method [J].

Takahashi, Norio ;

Nakazaki, Shunsuke ;

Miyagi, Daisuke .

IEEE TRANSACTIONS ON MAGNETICS, 2009, 45 (03) :1546-1549

← 1 →