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Vibration Suppression of Laminated Composite Beams With Embedded Piezoelectric Layers Using Third Order Shear Deformation Theory

Publish Year: 1389
Type: Conference paper
Language: English
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ISME18_460

Index date: 22 June 2010

Vibration Suppression of Laminated Composite Beams With Embedded Piezoelectric Layers Using Third Order Shear Deformation Theory abstract

Analytical solutions of laminated composite beams with piezoelectric layers are presented in this study. The piezoelectric layers playing the role of sensor and actuator are used for the vibration suppression of the composite beams. In this model a constant velocity feedback control algorithm is used to achieve a mechanism of active control of the structure free vibration. A formulation of the problem based on third order shear deformation theory (TSDT) is presented and analytical solutions of the equations are developed for simply supported boundary conditions.An analytical study is performed to get equivalent beam equations that are of elastic type. Controlled eigenfrequencies of the smart beam are obtained using this analytical model. Shear and axial effects are considered in extracting the transverse eigenfrequencies.The effect of lamination scheme, feedback control gain, thickness and placement of the piezoelectric layers on vibration attenuation is investigated.

Vibration Suppression of Laminated Composite Beams With Embedded Piezoelectric Layers Using Third Order Shear Deformation Theory Keywords:

Vibration Suppression of Laminated Composite Beams With Embedded Piezoelectric Layers Using Third Order Shear Deformation Theory authors

Ali Abbaszadeh Bidokhti

PhD student, Member of young researcher club, Islamic Azad University, Tehran-North Branch

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