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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Optimal Vibration Control of a Plate Using Optical Fiber Sensor and Piezoelectric Actuator

광섬유 센서와 압전 작동기를 이용한 평판의 최적 진동 제어

  • 김도형 (한국과학기술원 대학원 항공우주공학전공) ;
  • 한재흥 (한국전자통신연구원) ;
  • 양승만 (한국과학기술원 대학원 항공우주공학전공) ;
  • 김대현 (한국과학기술원 대학원 항공우주공학전공) ;
  • 이인 (한국과하기술원 항공우주공학전공) ;
  • 김천곤 (한국과학기술원 항공우주공학전공) ;
  • 홍창선 (한국과학기술원 항공우주공학전공)
  • Published : 2002.04.01
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Abstract

Vibration control of a plate using an optical fiber sensor and a piezoelectric actuator is considered in the present study, An aluminum plate with attached Extrinsic Fabry-Perot Interferometer (EFPI) and piezoelectric actuator is prepared for experimental investigation. Vibration level of EFPI that can represent the mechanical strain without severe distortion Is validated by forced nitration experiment. A linear time invariant system model is constructed based on the experimentally obtained frequency responses, and an optimal controller is designed for the multi-modal vibration suppression. Control performance is presented in frequency and time domains. It is found that the nitration level of the first three modes can be greatly reduced. The effect of low-pass filtering used to eliminate high frequency noise on the stability and control performance is also considered.

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References

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