はりの差分近似解を用いた境界近傍での制振制御(機械力学,計測,自動制御) Active Vibration Control of Beam near Boundary by Finite Difference Approach(Mechanical Systems)

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A wave absorbing control of beam near boundary by finite difference (FD) approach is presented. The FD equation of motion of the boundary node under the influence of the boundary condition is compensated to be the same as that of the inner node free from the boundary condition by using the characteristic solutions. The control strategy consists of a real-time convolution integral of the measured boundary node displacement and the time domain transfer function between adjacent nodes (characteristic solution). The real transfer function has two arbitrary constants. Control for beams has been investigated for these arbitrary constants considering the causality. Some suitable combinations of the arbitrary constants can realize both wave control and the fixed boundary node displacement smaller than the static one. Comparison between the FD approach and the impedance matching control for cantilevered beam shows that they have equivalent performance. We also confirmed the effectiveness of the wave controller by the time domain simulation.

収録刊行物

  • 日本機械学会論文集 C編

    日本機械学会論文集 C編 76(770), 2536-2544, 2010

    一般社団法人 日本機械学会

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各種コード

  • NII論文ID(NAID)
    110007817370
  • NII書誌ID(NCID)
    AN00187463
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03875024
  • NDL 記事登録ID
    10884035
  • NDL 雑誌分類
    ZN11(科学技術--機械工学・工業)
  • NDL 請求記号
    Z16-1056
  • データ提供元
    CJP書誌  NDL  NII-ELS  J-STAGE 
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