Magnetic Circuit Design of a Giant Magnetostrictive Actuator and Application to a Direct-Drive Servovalve.
Bibliographic Information
- Other Title
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- 超磁歪アクチュエータの磁気回路設計およびダイレクトドライブサーボ弁への応用
- チョウ ジワイ アクチュエータ ノ ジキ カイロ セッケイ オヨビ ダイレクト
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Abstract
At present, nozzle-flapper-type servovalves are capable of being used for a wide range of flow rate control and quick response control systems for many fluid power applications. However, the users must always keep contamination levels low, due to first-stage flow leakage which has a detrimental effect upon these valves. The DDV (direct-drive servovalve) utilizing a GMM (giant magnetostrictive material) has no first-stage leakage. This paper describes the FEM (finite-element method) analysis and experimental results of a magnetic bias of the GMM, using permanent magnets to produce linear operation under an AC field. Furthermore, it is shown that the DDV exhibits high performance as a new servovalve.
Journal
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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
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TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 60 (570), 479-483, 1994
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390282680870809728
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- NII Article ID
- 130004221089
- 110002393528
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- NII Book ID
- AN00187441
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- ISSN
- 18848346
- 03875016
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- NDL BIB ID
- 3863343
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed