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임경채(K. C. Lim),조동수(D. S. Cho),박우철(W. C. Park),기창두(C. D. Kee) 한국정밀공학회 2005 한국정밀공학회 학술발표대회 논문집 Vol.2005 No.10월
According to the mechanical-electrical coupling characteristics and the electrical impedance property of resistor-inductorcapacitor(RLC) series resonant circuit, the mechanical impedance analysis of a bimorph piezoceramic patch shunted with a series RLC resonant circuit is conducted. The displacement transfer function of a cantilever beam bonded with a piezoelectric shunt damping module is deduced in the case of single mode vibration of the beam. By the use of vibration damping theory of tuned mass damper system, the parameter optimization of piezoelectric shunt damping system is performed. The optimal resonant state of the shunting circuit can be obtained when the resistor and conductor are optimally adjusted. Test results show that the vibration control effect is well improved with optimized piezoelectric shunt system.