Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2001.11a
  • /
  • Pages.459-464
  • /
  • 2001
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Vibration Sensing and Control of a Plate Using Optical Fiber Sensor

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  • 김도형 (한국과학기술원 항공우주공학과) ;
  • 한재흥 (한국전자통신연구원) ;
  • 양승만 (한국과학기술원 항공우주공학과) ;
  • 김대현 (한국과학기술원 항공우주공학과) ;
  • 이인 (한국과학기술원 항공우주공학과) ;
  • 김천곤 (한국과학기술원 항공우주공학과) ;
  • 홍창선 (한국과학기술원 항공우주공학과)
  • Published : 2001.11.01
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Abstract

Vibration control of a plate using an optical fiber sensor and a PZT actuator is considered in this study. An aluminum plate with attached Extrinsic Fabry-Perot Interferometer (EFPI) and PZT actuator is prepared for experimental investigation. Vibration level of EFPI that can represent the mechanical strain without severe distortion is validated by forced vibration experiment. A numerical model of the plate is constructed based on the experimentally obtained frequency responses, and an optimal controller is designed for the multi-modal vibration suppression. It is found that the vibration 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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