Active control of laminated composite truncated conical shells using vertically and obliquely reinforced 1-3 piezoelectric composites

• Published in: European journal of mechanics, A, Solids Vol. 32; pp. 1 - 12
• Main Authors: Shah, P.H., Ray, M.C.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Masson SAS 01.03.2012; Elsevier
• Subjects: 1-3 Piezocomposite; Active control; Conical shells; Constraining; Damping; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Laminates; Physics; Piezoelectricity; Shells; Smart structures; Solid mechanics; Structural and continuum mechanics; Vibration; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...); Smart structures; 1-3 Piezocomposite; Conical shells; Active control; Damping; Constitutive equation; Viscoelasticity; Laminate; Conical shell; Passive system; Composite material; Finite element method; Piezoelectric materials; Truncated shape; Constraint theory; Vibration control; Fiber orientation; Intelligent system; Electromechanical properties
• ISSN: 0997-7538; 1873-7285
• DOI: 10.1016/j.euromechsol.2011.08.003

This paper deals with the analysis of active control of vibration of thin laminated composite truncated circular conical shells using vertically and obliquely reinforced 1-3 piezoelectric composite (PZC) materials as the constraining layer of the active constrained layer damping (ACLD) treatment. A finite element model of smart truncated conical laminated shells integrated with the patches of such ACLD treatment has been developed to demonstrate the performance of these patches on enhancing the damping characteristics of thin symmetric and antisymmetric cross-ply and antisymmetric angle-ply laminated truncated conical shells. Velocity feedback control loop has been implemented to activate the patches. The effect of variation of semi-cone angle on the performance of the patches for controlling first few modes of the truncated conical laminated shells has been demonstrated. Emphasis has also been placed on exploring the effect of variation of piezoelectric fiber orientation angle in the constraining layer on the control authority of the ACLD patches. ► ACLD of laminated composite conical shells has been investigated. ► The constraining layer of the ACLD patch is made of 1-3 PZC. ► Performance of the ACLD patch varies with the variation of the semi-cone angle. ► Performance of the ACLD patch varies with the piezoelectric fiber orientation angle.