한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제11권4호
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  • Pages.22-30
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  • 2001
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
권호 표지

무한 탄성 평판상의 기준점에 전달되는 진동인텐시티의 능동제어

Active Control of Vibrational Intensity at a Reference Point in an Infinite, Elastic Plate

  • 김기만 (금오공과대학교 기계공학과)
  • 발행 : 2001.07.01
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초록

In this paper, active control of vibrational intensity at a reference point in an infinite, elastic plate was discussed. The plate is excised harmonically by a vibrating source, which has a vertical point force. The optimal condition of controller was investigated to minimize the vibrational intensity being transmitted from the vibrating source to a reference point. Hence the method of feedforward control was employed for the control strategy and then the cost function was evaluated to find the optimal control force. Three types of control force (Vertical force, Moment, and Coupling force (a set of vertical force and moment) ) and controller's positions were examined to define the optimal condition of the controller. The vibrational intensity at a reference point was found to be reduced down to a zero level, compared with the uncontrolled case. Especially maximum reduction of vibrational intensity was achieved when the controller was collinearly positioned between a vibrating source and a reference point.

키워드

참고문헌

  1. Statistical Energy Analysis of Dynamical Systems : Theory and Applications. Lyon, R.H.
  2. J. Acoust. Soc. Am. v.47 no.2 Measurement of Power Flow in Uniform Beams and Plates Noiseux, D.U.
  3. J. Acoust. Soc. Am. v.80 no.4 Relationship Between Vibrational and Acoustical Intensity for an Infinite Plate Piaud, J.B.;Nicolas, J.
  4. J. of Vibration and Acoustics v.112 Power Flow and Mechanical Intensity Calculations in Structural Finite Element Analysis Hambric, S.A.
  5. J. Acoust. Soc. Am. v.92 no.2 Total Power Flow From a Vibrating Rigid Body to a Thin Panel Through Multiple Elastic Mounts Pan, J.
  6. J. Acoust. Soc. Am. v.99 no.1 Measuring the Structural Intensity and Force Distribution in Plates Zhang, Y.;Mann Ⅲ, J.A.
  7. J. Acoust. Soc. Am. v.103 no.4 Input mobilities and power flows for edge-excited, semi-infinite plates Kauffmann, C.
  8. 한국소음진동공학회지 v.8 no.4 동일 평면상에서 연성된 직사각형 평판의 진동파워흐름해석 박도현;홍석윤;길현권
  9. J. Acoust. Soc. Am. v.96 no.3 Vortex Structural Power Flow in a Thin Plate and the Influence on the Acoustic Field Tanaka, N.;Snyder, S. D.;Kikushima, Y.;Kuroda, M.
  10. Proceedings of the Conference Active v.95 Active Control of Structural Intensity in Connected Structures Nam, M.;Hayek, S.I;Sommerfeldt, S.D.
  11. J. of Sound and Vibration v.208 no.1 Active Powr Minimization and Powr Absorption in a Plate with Force and Moment Excitation Bardou, O.;Gardonio, P.;Elliott, S. J.;Pinnington, R.J.
  12. Sound, Structures, and Their Interaction Junger, M.C.;Feit, D.
  13. Advanced Engineering Mathematics Kreyszig, E.