Vibration Control by Magnetostrictive Actuator Coupled with Negative Inductance Circuits

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抄録

The stiffness of magnetostrictive materials can be controlled by the feedback action of the negative inductance circuits connected to the coils surrounding them. The effect is analogous to that of piezoelectric materials whose stiffness can be controlled by the negative capacitance circuits connected to them. The applied sinusoidal strain of the central rod in a magnetostrictive actuator induces the sinusoidal electric current in the surrounding coil. The current is increased or decreased by the feedback from the circuits, resulting in the corresponding increase or decrease in the strain under the fixed applied stress. The apparent dynamic elastic coefficient is thus arbitrarily controlled. If the actuator is placed between a shaker and a heavy mass, the resonant frequency of the system decreases or increases depending on the type of the negative inductance circuit. The transmissibility of vibration through the actuator is thus controlled in the respective frequency range.

収録刊行物

  • Japanese journal of applied physics. Pt. 1, Regular papers & short notes

    Japanese journal of applied physics. Pt. 1, Regular papers & short notes 42(11), 7124-7128, 2003-11-15

    公益社団法人 応用物理学会

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各種コード

  • NII論文ID(NAID)
    10012564932
  • NII書誌ID(NCID)
    AA10457675
  • 本文言語コード
    EN
  • 資料種別
    ART
  • 雑誌種別
    大学紀要
  • ISSN
    0021-4922
  • NDL 記事登録ID
    6753159
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A375
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE  JSAP 
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