DOI QR코드

DOI QR Code

능동음향진동제어를 위한 센서와 액추에이터의 동위치화 연구

Collocation of Sensor and Actuator for Active Control of Sound and Vibration

  • 발행 : 2004.03.01

초록

The problem considered in this paper is about the collocation of sensor and actuator for the active control of sound and vibration. It is well-known that a point collocated sensor-actuator pair offers an unconditional stability with very high performance when it is used with a direct velocity feedback (DVFB) control, because the pair has strictly positive real (SPR) property. In order to utilize this SPR characteristics, a matched piezoelectric sensor and actuator pair is considered. but this pair suffers from the in-plane motion coupling problem with the out-of-plane motion due to the piezo sensor and actuator interaction. This coupling phnomenon limits the stability and performance of the matched pair with DVFBcontrol. As a new alternative, a point sensor and distributed piezoelectric actuator pair is also considered, which provides SPR property in all frequency range when the pair is implemented on a clamped-clapmed beam. The use of this sensor-actuator pair is highly expected for the applications to more practical active control of sound and vibration systems with the DVFB control strategy.

키워드

참고문헌

  1. Active Control of Vibration Fuller,C.R.;Elliott,S.J.;Nelson,P.A.
  2. Feedback Control Theory Doyle,J.C.;Francis,B.A.;Tannebaum,A.R.
  3. Robust Control: The Parametric Approach Bhattacharyya,S.P.;Chapellat,H.;Keel,L.H.
  4. Active Control of Sound Nelson,P.A.;Elliott,S.J.
  5. Vibration Control of Active Structures: An Introduction (2nd Ed.) Preumont,A.
  6. Journal of Acoustical Society of America v.111 no.2 Active Vibroacoustic Control with Multiple Local Feedback Loops Elliltt,S.J.;Gardonio,P.;Sors,T.H.;Brennan,M.J. https://doi.org/10.1121/1.1433810
  7. Journal of Guidance and Control v.2 no.3 Direct Velocity Feedback Control of Large Space Structures Balas,M.J. https://doi.org/10.2514/3.55869
  8. Journal of Acoustical Society of America v.111 no.6 Coupling Analysis of a Matched Piezoelectric Fluoride Sensor and Actuator Pair for Vibration Control of a Smart Beam Lee,Y.S.;Gardonio,P.;ElliottS,J. https://doi.org/10.1121/1.1476921
  9. Journal of Acoustical Society of America v.98 no.4 Active Control of Sound Radiation using Volume Velocity Cancellation Johnson,M.E.;Elliott,S.J. https://doi.org/10.1121/1.413332
  10. Journal of Sound and Vibration v.194 no.5 Some Observations on Physical Duality and Collocation of Structural Control Sensors and Actuators Sun,J.Q. https://doi.org/10.1006/jsvi.1996.0394
  11. Signal Processing for Active Control Elliott,S.J.
  12. Modal Testing: Theory and Practice Ewins,D.J.
  13. Discrete-time Signal Processing Oppenheim,A.V.;Schafer,R.W.
  14. Transmission and Response Sound and Structural Vibration: Radiation Fahy,F.