# 円筒状コイル可動形リニア直流モニターの推力/入力比に関する考察Considerations on Thrust-to-Input Ratio of a Cylindrical Moving Coil Type Linear DC Motor

## 抄録

Linear DC motors (LDMs) are widely used for servo-actuator, compressor and so on. High-efficiency LDMs are strongly desired for compressors. To realize the LDMs with high-efficiency characteristics, decreasing the copper losses, namely, thrust-to-input ratio, <i>F</i>/<i>P</i>, must be increased. This paper describes an optimization method for the <i>F</i>/<i>P</i> of a moving coil type LDM. The following results are obtained:<br>(1) Simplified expression for the <i>F</i>/<i>P</i> of the LDM is derived from the permeance analysis method. The effects that dimensions of the LDM influence the <i>F</i>/<i>P</i> of the LDM are investigated through the simplified expression for the <i>F</i>/<i>P</i>. As a result, the optimum dimension of the LDM for maximizing the <i>F</i>/<i>P</i> exists.<br>(2) When the static thrust is 100 N, the measured <i>F</i>/<i>P</i> of the initial LDM is 7.9 N/W, and the errors by using the simplified expression for the <i>F</i>/<i>P</i> and the finite element method (FEM) are 33% and 8%, respectively. Derived simplified expression for the <i>F</i>/<i>P</i> is useful because the <i>F</i>/<i>P</i> can be calculated easily.<br>(3) An improved LDM, which has 26% higher <i>F</i>/<i>P</i> than those of the initial LDM, is designed by using the permeance analysis method and the FEM.

## 収録刊行物

• 電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society

電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society 118(4), 444-449, 1998-04

The Institute of Electrical Engineers of Japan

## 各種コード

• NII論文ID(NAID)
10002878220
• NII書誌ID(NCID)
AN10012320
• 本文言語コード
JPN
• 資料種別
ART
• ISSN
09136339
• NDL 記事登録ID
4436406
• NDL 雑誌分類
ZN31(科学技術--電気工学・電気機械工業)
• NDL 請求記号
Z16-1608
• データ提供元
CJP書誌  CJP引用  NDL  J-STAGE

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