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Active Control of the Fluid-Coupled Vibration of Thin-Walled Structures

Research Project

Project/Area Number 62460103
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 機械力学・制御工学
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

TANI Junji  Tohoku Univ., Inst. Fluid Science, Prof., 流体科学研究所, 教授 (30006192)

Co-Investigator(Kenkyū-buntansha) OHTOMO Kikuo  Tohoku Univ., Inst. Fluid Science, Assist., 流体科学研究所, 助手 (10006182)
SUDO Seiichi  Tohoku Univ., Inst. Fluid Science, Assist., 流体科学研究所, 助手 (90006198)
YAMADA Motohiko  Tohoku Univ., Fac. Engineering, Asso. Prof., 工学部, 助教授 (90005471)
HASHIMOTO Hiroyuki  Tohoku Univ., Inst. Fluid Science, Prof., 流体科学研究所, 教授 (10006174)
児珠 昭太郎  東北大学, 高速力学研究所, 助手 (60006187)
谷野 哲三  東北大学, 工学部, 助教授 (50125605)
Project Period (FY) 1987 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥5,200,000)
Fiscal Year 1989: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1988: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1987: ¥3,400,000 (Direct Cost: ¥3,400,000)
KeywordsActive Control / Fluid-Coupled Vibration / Thin-Walled Structures / Pipe / Shell / Beam / Tendon Mechanism / Piezoelectric Actuator / 動的不安定現象 / トランスピュ-タ / 能動制御 / 理論 / 実験
Research Abstract

The thin-walled structures such as pipes and shells are easy to become the dynamic instability connected with fluid, that is flutter and divergence. To stabilize the flow-induced vibration of the thin-walled structures, an active control method was proposed in this study.
At first theoretical studies on the dynamic stability and active control of cantilevered pipes conveying fluid were conducted. In order to control the response of the cantilevered pipe, an active control force was derived by the torque produced by a pair of tendons attached to the pipe. And also piezoelectric actuators was used to generate the torque. The problem was solved by means of the Galerkin method, in conjunction with the optimal regulator theory. The numerical simulation of the response of the pipe conveying fluid was also carried out for various conditions. It was found that the active control method using the tendon mechanism and the piezoelectric actuator is effective to stabilize the pipe conveying fluid, even if the control input is limited.
Next, the theoretical results were confirmed by the experiment in which DC servo motors and piezoelectric actuators were used. Also the minimum order state observer and the digital optimum regulator theory were used with personal computers.
Furthermore, the flow-induced vibration of shells was found to be suppressed by the active control.

Report

(4 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • 1987 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] 土岐仁・谷順二: "片持送水管の安定性とその能動制御(テンドンによる安定化の一試み)" 日本機械学会論文集C編. 54. 357-362 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] J.Tani,H.Doki,G.Lin,F.Takahashi,S.Kodama & M.Chiba: "Active Vibration Control of a Cantilever Beam by a Piyoelectric Ceramic Actuator" Proc.IUTAM/IFAC Symp,on Dynamics of Controlled Mechanical Systems. 1. 107-118 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Y.Uematsu,K.Uchiyama,M.Yamada & S.Sanjyo: "Ovalling Oscillations of Thin Circular Cylindrical Shells in a Cross Flon" J.Fluids & Structures. 2. 285-307 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 谷順二・張和炳: "液体を含む有限長回転円筒殻の振動" 日本機械学論文集C編. 54. 2633-2639 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 児球昭太郎・谷順二: "一様流中における角柱の振動(第1報:実験)" 日本機械学会論文集C編. 55. 2713-2717 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 高橋史明・谷順二: "液体ジェットにより横従動力を受ける片持ばりの能動制御" 日本機械学会論文集C編. 55. 1199-1205 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] H. Doki, and J. Tani: "Dynamic Stability and Active Control of Cantilevered Pipes Conveying fluid (An Attempt of Stabilization by Tendon Control Method)." Trans. JSME, Vol. 54, No. 498, pp. 357-362, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Y. Uematsu, K. Uchiyama, M. Yamada and S. Sanjyo: "Overlling Oscillations of Thin Circular Cylindrical Shells, in a Cross Flow." J. Fluids & Structures, Vol.2, No.2, pp. 285-307, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] M. Chiba, J. Tani and N. Yamaki: "Dynamic Stability of Liquid-Filled Cylindrical Shells under Vertical Excitation, Part I: Experiment Results, Part II: Theoretical Results." Earthquake Engineering and Structural Dynamics, pp. 23-36, 37-51, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] F. Takahashi and J. Tani: "Active Control of a Cantilevered Beam Subjected to Transverse Follower Force of a Fluid Jet." Trans. JSME, Vol. 55, No. 513, pp. 1199-1205, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] S. Kodama and J. Tani: "Vibration of a Cantilever Beam with Square Section in Smooth Flow (1st Report, Experiment)." Trans. JSME, Vol. 55, No. 510, pp. 2713-2717, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] M.Chiba,T.Yamashida,H.Sugiyama & J.Tani: "Dynamic Stability of Liquid-Filled Cylindrical Shells under Periodic Shearing Forces" ASME.J.Pressure Vessel Technology. 111. 420-427 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] J.Tani,K.Ohtomo,T.Sakai & M.Chiba: "Hydroelastic Vibration of Partially Liquid-Filled Coaxial Cylindrical Shells" ASME.Sloshing and Fluid Structure Vibration,PVP. 157. 29-34 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] J.Tani,T.Sakai & M.Chiba: "Dynamic Stability of Fluid-Coupted Coaxial Cylindrical Shells under Vertical Excitation" ASME,Sloshing and Fluid Structure Vibration,PVP. 157. 47-53 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] J.Tani & F.Takahashi: "Dynamic Stability and Active Control of a Stepped Pipe Conveying Fluid by Piegoelectric Actuators" Proc,Asia Vibration Conf.89. 233-238 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 高橋史明、谷順二: "流体ジェットにより横従動力を受ける片持ばりの能動制御" 日本機械学会論文集、C編. 55. 1199-1205 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 谷順二、酒井達能、千葉正克: "流体連成二重円筒殻の動的安定性" 日本機械学会論文集C編. 55. 870-877 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 土岐仁、谷順二: 日本機械学会論文集,C編. 54. 357-362 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] J.Tani;H.Doki;G.Liu;F.Takashi;S.Kodama;M.Ghiba: Proc.IUTAM/IFAC Sympo,on Dynamics of Controlled Mechanical Systems. 1. 107-118 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Y.Uematsu;K.Uchiyama;M.Yamada;S.Sanjyo: Journal of Fluids and Structures. 2. 285-307 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 谷順二、張和炳: 日本機械学会論文集,C編. 54. 2633-2639 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 谷順二、寺木潤一: 日本機械学会論文集,C編. 54. 73-79 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 児珠昭太郎、谷順二: 日本機械学会論文集,C編. 55. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 土岐仁;谷順二;児珠昭太郎: 東北大学高速力学研究所報告. 57. 81-95 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 土岐仁;谷順二: 日本機械学会論文集. 54. (1983)

    • Related Report
      1987 Annual Research Report
  • [Publications] J.Tani;H.Duki;G.Iiu;F.Takahashi;S.Kodama;M.Chiba: Proc.IUTAM/IFAC Sympo on Dynamics of Controlled Mechanical Systems. (1983)

    • Related Report
      1987 Annual Research Report
  • [Publications] J.Tani;F.Takahashi;H.Ueda: Proc.Inter.Sympo on Space Technology and Science. 16. (1983)

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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