Vibration suppression of composite laminated beams using distributed piezoelectric patches

• Published in: Smart materials and structures Vol. 19; no. 11; p. 115018
• Main Authors: Foda, M A, Almajed, A A, ElMadany, M M
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.11.2010; Institute of Physics
• Subjects: Applied sciences; Beams (radiation); Beams (structural); Composite beams; Composites; Dynamical systems; Dynamics; Exact sciences and technology; Exact solutions; Forms of application and semi-finished materials; Fundamental areas of phenomenology (including applications); Mathematical analysis; Physics; Piezoelectricity; Polymer industry, paints, wood; Solid mechanics; Structural and continuum mechanics; Technology of polymers; Vibration; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...); Stratified material; Piezoelectric sensor; Voltage; Vibration control; Surface transducer; Green function; Modeling; Steady state; Composite material; Bending vibration; Stationary condition; Exact solution
• ISSN: 0964-1726; 1361-665X
• DOI: 10.1088/0964-1726/19/11/115018

The focus of this paper is to develop an analytical and straightforward approach to suppress the steady state transverse vibration of a symmetric cross-ply laminated composite beam that is excited by an external harmonic force. This is achieved by bonding patches of piezoelectric material at selected locations along the beam. The governing equations for the system are formulated and the dynamic Green's functions are used to obtain an exact solution for the problem. A scheme is proposed for determining the values of the driving voltages, the dimensions of the PZT patches and their locations along the beam, in order to confine the vibration in a certain chosen region where the vibration is not harmful and leave the other chosen region stationary or vibrating with very small amplitudes. Beams with different boundary conditions are considered. Numerical case studies are presented to verify the utility of the proposed scheme.