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Preliminary Investigation of Magnetic Fluid Active Damper

Research Project

Project/Area Number 09555061
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Fluid engineering
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

UENO Kazuyuki (1998)  Tohoku Univ., Inst.Fluid Sci., Lecturer, 流体科学研究所, 講師 (20250839)

神山 新一 (1997)  東北大学, 流体科学研究所, 教授 (80006171)

Co-Investigator(Kenkyū-buntansha) MATSUMURA Yusuke  Taiho Kogyo, Deputy Research Manager, CE事業部, 技術顧問
OYAMA Tadamasa  Tohoku Univ., Inst. Fluid Sci., Research Associate, 流体科学研究所, 助手 (80006189)
KAMIYAMA Shinichi  Emeritus Professor of Tohoku Univ., 名誉教授 (80006171)
上野 和之  東北大学, 流体科学研究所, 助手 (20250839)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥7,600,000 (Direct Cost: ¥7,600,000)
Fiscal Year 1998: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1997: ¥6,200,000 (Direct Cost: ¥6,200,000)
KeywordsMagnetic fluid / Active damper / Oscillatory motion / Magnetic field / Fluid resistance / Actuator / Neuro-control
Research Abstract

The investigations on the following 5 items are conducted.
(1) Construction of an experimental apparatus for the magnetic fluid active damper
The experimental apparatus was constructed to test the suppression of a piston motion immersed in the magnetic fluid in an oscillating container (cylinder) by the control of the applied magnetic field. The piston is connected to the cylinder through a spring-mass system. The cylinder is oscillated by the exciter With frequency off = 2-10 Hz. The suppression force is induced in the magnetic fluid by applying oscillating magnetic field. The natural frequency of the system is designed to be 5Hz when the kerosene based magnetic fluid with 50% mass concentration of magnetite particles is used. As the controlling method, the neural-network controller system is introduced.
(2) Dynamic characteristics of the magnetic fluid active damper
The dynamic characteristics of the active damper are obtained by using the apparatus explained in the above item (1). Neuro … More -controllers (NC) of series and parallel types are designed to control the piston oscillation. The test results show that it is possible to suppress the oscillation of the piston in this system and to give relatively good results by using the parallel type NC compared to the series type NC in the range of the low frequency smaller than the natural frequency of f = 5Hz. By using the magnetic fluid with iron-nitride particles, more efficient characteristics of the magnetic fluid active damper is obtained in comparison with the usual magnetic fluid with the magnetite particles.
(3) Theoretical study of the magnetic fluid active damper
The theoretical study is conducted to understand the suppression mechanism of the oscillation and the necessary conditions of the complete suppression of the piston motion is obtained.
(4) Study of frequency response curve as a magentic fluid actuator
To investigate the dynamic characteristics of the magnetic fluid actuator, the experimental appatatus was slightly changed. The piston motion induced in the stationary magnetic fluid by the applying oscillating magnetic field. The amplitude of the oscillating motion of the piston is obtained as a function of the frequency and the magentic field strength.
(5) Basic study of the oscillation of a flat plate in the magnetic fluid
The flat plate was selected to analyze simply the fluid force acting on the oscillating body. The evaluation of the viscous damping factor and the added mass coefficient was obtained and compared with the experimental results. It is clarified that an increasing rate of a fluid resistance acting on the plate due to the applied magnetic field is large in the tested magnetic fluid with the iron-nitride particles compared to the one with the magnetic particles. Less

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] H.Fukuda: "Study on Active Damper with a Magnetic Fluid" JSME Int.J., Ser.B. 41-4. 822-829 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Kamiyama: "Investigation on Vibration Characteristics of Magnetic Fluid Active Damper" Non-linear Electromagentic Systems, IOS Press. 875-878 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Kamiyama: "Progress on Intelligent Fluid and Engineering" The 5th Japanese-French Seminar on Magnetic Fluids, Akita. 3-5 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Kamiyama: "Investigation on Control of Magnetic Fluid Active Damper" Proc.of Int.Symp.on Hydrodyn.of Mag.Fluids & its Appl.136-139 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 岡本 久美子: "磁性流体アクティブタンパの制御特性に関する研究" 日本機械学会第76期全国大会講演論文集(III). 98-3. 253-254 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 小山 忠正: "窒化鉄磁性流体中の平板の振動特性" 第10回電磁力関連のダイナミックスシンポジウム講演論文集. 98-3. 405-408 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Kamiyama: "Application of Oscillatory Flow of Magnetic Fluid as Active Damper and Actuator" Int.Conf.on ERF, MRS and their Applications, Yonezawa. 116-117 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 神山 新一: "磁性流体アクチュエータ" 日本ロボット学会誌. 15-3. 351-354 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 神山 新一: "流体ミクロシミュレーション" 朝倉書店, 148 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Fukuda: "Study on Active Damper with a Magnetic Fluid" JSME Int.J., Ser.B. 41-4. 822-829 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Kamiyama: "Investigation on Vibration Characteristics of Magnetic Fluid Active Damper" Non-linear Electromag.Systems, IOS Press. 875-878 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Kamiyama: "Progrrss on Intelligent Fluid and Engineering" The 5th Japanese-French Seminar on Magnetic Fluids, Akita. 3-5 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Kamiyama: "Investigation on Control of Magnetic Fluid Active Damper" Proc.of Int.Symp.on Hydrodyn.on Magnetic Fluids and its Appl.136-139 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] K.Okamoto: "Study on Regulating Characteristics of Magnetic Fluid Ac-tive Damper" Proc.of The 76th JSME Fall Annual Meeting. 98-3. 253-254 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Oyama: "Study on the Characteristics of an Oscillating Flat Plate in Iron Nitride Magnetic Fluid" Proc.of 10th Symp.on Electromagnetics and Dynamics. 405-408 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Kamiyama: "Application of Oscillatory Flow of Magnetic Fluid as Active Damper and Actuator" Int.Conf.on ERF,MRS and their Applica-tions, Yonezawa. 116-117 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Kamiyama: "Magnetic Fluid Actuator" J.of the Robotics Soc.Japan. 15-3. 351-354 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S.Kamiyama: Fluid Micro Simulation. Asakurashoten, 148 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Fukuda: "Study on Active Damper with a Magnetic Fluid" JSME Int.J.,Ser.B. 41-4. 822-829 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Kamiyama: "Investigation on Vibration Characteristics of Magnetic Fluid Active Damper" Non-linear Electromagnetic Systems,IOS Press. 875-878 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Kamiyama: "Progress on Intelligent Fluid and Engineering" The 5th Japanese-French Seminar on Magnetic Fluids,Akita. 3-5 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 神山 新一: "知能流体工学の進展" 第10回「電磁力関連のダイナミックス」シンポジウム講演論文集. 98-251. 1-4 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 岡本 久美子: "磁性流体アクティブダンパの制御特性に関する研究" 日本機械学会第76期全国大会講演論文集(III). 98-3. 253-254 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小山 忠正: "窒化鉄磁性流体中の平板の振動特性" 第10回「電磁力関連のダイナミックス」シンポジウム講演論文集. 98-251. 405-408 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Kamiyama: "Application of Osciilatory Flow of Magnetic Fluid as Active Damper and Actuator" Int.Conf.on ER Fluids,MR Suspensions and their Applications. 116-117 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S.Kamiyama: "Investigation on Control of Magnetic Fluid Active Damper" Proc.Int.Symp.on Hydrodyn. of Magnetic Fluids and its Appl.136-139 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 福田 秀章: "磁性流体アクティブダンパに関する基礎研究" 日本機械学会論文集B編. 63-616. 3891-3898 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 佐藤 明: "強磁性コロイド分散系の単純せん断流中での挙動に関するストークス動力学シミュレーション" 日本機械学会論文集B編. 63-613. 3017-3024 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 神山 新一: "磁性流体アクチュエータ" 日本ロボット学会誌. 15-3. 351-354 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 神山 新一: "流体ミクロ・シミュレーション" 朝倉書店, 148 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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