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http://dx.doi.org/10.5050/KSNVN.2002.12.4.294

Optimal Vibration Control of a Plate Using Optical Fiber Sensor and Piezoelectric Actuator  

Kim, Do-Hyung (한국과학기술원 대학원 항공우주공학전공)
Han, Jae-Hung (한국전자통신연구원)
Yang, Seung-Man (한국과학기술원 대학원 항공우주공학전공)
Kim, Dae-Hyun (한국과학기술원 대학원 항공우주공학전공)
Lee, In (한국과하기술원 항공우주공학전공)
Kim, Chun-Gon (한국과학기술원 항공우주공학전공)
Hong, Chang-Sun (한국과학기술원 항공우주공학전공)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.12, no.4, 2002 , pp. 294-301 More about this Journal
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.
Keywords
Optical Fiber Sensor; Piezoelectric Actuator; Vibration Control;
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