Semi-Active Vibration Control with Shunted Piezoceramics

• Autorzy: Oleśkiewicz, R. , Neubauer, M. , Krzyżyński, T. , Popp, K.
• Konferencja: Polish-German Workshop on Dynamical Problems in Mechanical Systems (9 ; 4-10.09.2005 ; Paszkówka, Poland)
• Języki publikacji: EN

Abstrakty

EN

Piezoelectric materials because of their unique ability of converting mechanical energy into electrical energy and vice versa can be found in numerous mechanical vibration damping applications. Connecting a suitable shunt branch to the piezoelectric actuator results in an electromechanical vibration damping or absorbing system, depending on the complex impedance describing the external network. A limited performance of the pure passive techniques involving resistive and inductive elements depending only on the electromechanical coupling coefficient can be significantly increased by the use of the negative capacitance element. Such an approach requires external power supply because of the necessary impedance converter built up of the operational amplifiers. The paper presents the recent research on the negative capacitance application in semi passive vibration control systems with piezoceramics, where the different configurations of external RLC-networks are analyzed. The electromechanical system consists of one degree of freedom spring mass damper oscillator with a piezoelectric actuator placed between the mass and the base. The analysis is performed in a general, normalized form, highlighting the influence of the negative capacitance and the general electromechanical coupling coefficient of the piezoceramics. The optimal parameters of the shunt branch resulting in maximal damping and absorbing performance of the system are given in an analytical form. The analytical results have been experimentally verified using a test rig.

• Czasopismo: Machine Dynamics Problems
• Rocznik: 2005
• Tom: Vol. 29, No. 4
• Strony: 109-125
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Oleśkiewicz, R.

• Technical University of Koszalin, Department of Mechatronics,

autor

Neubauer, M.

• University of Hanover, Institute of Mechanics

autor

Krzyżyński, T.

• Technical University of Koszalin, Department of Mechatronics

autor

Popp, K.

• University of Hanover, Institute of Mechanics

Bibliografia

• 1. Behrens, S., Moheimani, S.O.R. Fleming, A.J., 2003, Multiple mode current flowing passive piezoelectric shunt controller, Journal of sound and vibration, 266 929-942.
• 2. Fukada, E., Date, M., Kimura, K., Okubo, T., Kodama, H., Mokry, P., Yamamoto, K., 2004, Sound Isolation by Piezoelectric Polymer Films Connected to Negative Capacitance Circuits, IEEE Transactions on Dielectrics and Electrical Insulation, 11, No. 2.
• 3. Neubauer, M., Kröger, M., Oleśkiewicz, R., 2006, Suppression of Brake Squeal Using Piezoceramics (to be published in Proceedings of BRAKING Conference).
• 4. Neubauer, M., Oleśkiewicz, R., Popp, K., 2005, Comparison of Damping Performance of Tuned Mass Dampers and Shunted Piezoelements, Proceedings of 76th GAMM Annual Meeting 2005 - Luxembourg, 5, 117-118.
• 5. Oleśkiewicz, R., Neubauer M., Krzyżyński, T., Popp, K., 2005, Synthetic Impedance Circuits in Semi-Passive Vibration Control with Piezo-Ceramics - Efficiency and Limitations, Proceedings of 76th GAMM Annual Meeting 2005 - Luxembourg, 5, 121-122.
• 6. Tang, J., Wang, K.W., 2001, Active-passive hybrid piezoelectric networks for vibration control: comparisons and improvement, Smart Mater. Struct., 10, 794-806.