Active vibration control of CNT reinforced functionally graded plates based on a higher-order shear deformation theory

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

27 Scopus Citations
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Detail(s)

Original languageEnglish
Pages (from-to)90-101
Journal / PublicationInternational Journal of Mechanical Sciences
Volume105
Early online date28 Nov 2015
Publication statusPublished - Jan 2016

Abstract

This paper presents the active vibration control of carbon nanotube (CNT) reinforced functionally graded plates using piezoelectric actuator and sensor pairs bonded on the top and bottom surfaces of the host plate. Three types of CNT distributions are considered. In this study, Reddy's higher-order shear deformation theory (HSDT) is applied to evaluate the displacement fields of the host plate. The equation of motion of the whole structural system is formulated by Hamilton's principle. To derive a set of discrete ordinary differential equation, the assumed mode method is used. For the active vibration control, velocity feedback control method is used to design the controller. Responses of the plate subjects to free and forced vibration are determined. The differences of vibrations between the three types of CNT reinforced functionally graded plates are compared. Influence of volume fraction of the CNTs on the vibration amplitude is investigated. The active vibration control effects of the velocity feedback controller are presented and the trend of change in the control effect with placements of piezoelectric patches is also examined.

Research Area(s)

  • Active vibration control, Functionally graded CNT reinforced composite plate, HSDT, Placement of piezoelectric patches, Velocity feedback control

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