Reduction of wind-induced vibration of a laminated plate with an active constrained layer

Abstract

An active control method is proposed to reduce the wind-induced vibration of laminated plates by use of a velocity feedback control strategy. A piezoelectric fiber-reinforced composite sensor and actuator are used to achieve effective active damping in the vibration control. The displacements in the time and frequency domains, as well as the power spectral density and the mean-squared value of the transverse response, are formulated under wind pressure at variable control gain. It is observed in the numerical results that the damping performance of the laminated plate can be significantly improved by using an outside active voltage on the constraining layer. The effects of the fiber orientation angles, both in the base laminated plate and the active piezoelectric fiber-reinforced composite constrained layer, are also discussed.