Investigating negative capacitance shunt circuit for broadband vibration damping and utilizing ACO for optimization

Wahid, Azni Nabela and Asan Gani, Abdul Muthalif and A. M. Nor, Khairul (2016) Investigating negative capacitance shunt circuit for broadband vibration damping and utilizing ACO for optimization. International Journal of Circuits and Electronics,, 1. pp. 168-173. E-ISSN 2367-8879

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Abstract

This paper presents optimization of vibration damping for a rectangular thin plate using a single piezoelectric (PZT) patch shunted with negative capacitance, by utilizing the ant colony optimization (ACO) algorithm. The frequency range to be controlled is presented in the context of statistical energy analysis (SEA) where modal overlap factor (MOF) is considered i.e. MOF<1 (low), 1<MOF<2 (mid) and MOF>2 (high). The effects of two different shunt circuits on the system are studied; series and parallel resistor-negative capacitor (R-C). The governing equation of motion for a PZT patch shunt attached on a thin plate is obtained using Lagrange’s equation, and ACO algorithm is utilized to obtain the optimum spatial coordinate of the PZT patch and resistor values of the shunt circuit for the different frequency regions, targeting for maximum energy reduction of the vibrating thin plate.

Item Type:	Article (Journal)
Additional Information:	3352/53940
Uncontrolled Keywords:	- Piezoelectric shunt damping, Negative capacitance, Statistical Energy Analysis, modal overlap factor, Ant Colony Optimization.
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ210.2 Mechanical devices and figures. Automata. Ingenious mechanism. Robots (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User:	Ir. Ts. Dr Asan Gani Abdul Muthalif
Date Deposited:	11 Jan 2017 10:20
Last Modified:	17 Jul 2017 16:46
URI:	http://irep.iium.edu.my/id/eprint/53940

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