Optimal piezoelectric shunt damper using enhanced synthetic inductor: simulation and experimental validation

Suhaimi, Muhammad Nazri and Wahid, Azni Nabela and Nordin, Nor Hidayati Diyana and Md Nor, Khairul Affendy (2022) Optimal piezoelectric shunt damper using enhanced synthetic inductor: simulation and experimental validation. IIUM Engineering Journal, 23 (1). pp. 424-433. ISSN 1511-788X E-ISSN 2289-7860

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Abstract

Piezoelectric material has the ability to convert mechanical energy to electrical energy and vice versa, making it suitable for use as an actuator and sensor. When used as a controller in sensor mode, the piezoelectric transducer is connected to an external electrical circuit where the converted electrical energy will be dissipated through Joule heat; also known as piezoelectric shunt damper (PSD). In this work, a PSD is used to dampen the first resonance of a cantilever beam by connecting its terminal to an RL shunt circuit configured in series. The optimal resistance and inductance values for maximum energy dissipation are determined by matching the parameters to the first resonant frequency of the cantilever beam, where R = 78.28 kΩ and L = 2.9 kH are found to be the optimal values. To realize the large inductance value, a synthetic inductor is utilized and here, the design is enhanced by introducing a polarized capacitor to avoid impedance mismatch. The mathematical modelling of a cantilever beam attached with a PSD is derived and simulated where 70% vibration reduction is seen in COMSOL. From experimental study, the vibration reduction obtained when using the piezoelectric shunt circuit with enhanced synthetic inductor is found to be 67.4% at 15.2 Hz. Results from this study can be used to improve PSD design for structural vibration control at targeted resonance with obvious peaks

Item Type:	Article (Book Review)
Additional Information:	8703/96472
Uncontrolled Keywords:	vibration control; piezoelectric shunt damper (PSD); synthetic inductance
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA630 Structural engineering (General) T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User:	Dr. Azni Nabela Wahid
Date Deposited:	25 Jan 2022 16:51
Last Modified:	08 Feb 2022 10:24
URI:	http://irep.iium.edu.my/id/eprint/96472

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