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Active Vibration Control Method Using Frequency Controllable Piezoelectric Transducer  

Kim, Jung-Soon (Department of Multimedia Engineering, Tongmyong University)
Kim, Moo-Joon (Department of Physics, Pukyong National University)
Ha, Kang-Lyeol (Department of Physics, Pukyong National University)
Kang, Sung-Hak (General Utility Ltd.)
Publication Information
The Journal of the Acoustical Society of Korea / v.26, no.1E, 2007 , pp. 27-32 More about this Journal
Abstract
Hydraulic actuator and electro-magnetic liner actuator have been used as typical active vibration control methods. However these methods have many kinds of disadvantages such as causing space limit, difficult maintenance, complicate structures, etc. The purpose of this paper was to study on the possibility of active vibration control using piezoelectric transducer. Piezoelectric transducer generated a vibration and GIC (General Impedance Converter) amplifier was adopted to give adjustable vibration signal to transducer and high amplitude of vibration. Resonance frequency of piezoelectric transducer was controlled by GIC amplifier and higher amplitude of vibration was achieved. Finally active vibration control using piezoelectric transducer was performed.
Keywords
Frequency controllable transducer; Active vibration control; General impedance converter; Vibration control; Multi-layered piezoelectric vibrator;
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