Smart structures have a wide range of potential applications in aerospace engineering, such as vibration and noise suppression, shape adaption and aeroelastic control of lifting surfaces. Piezoelectric materials are largely used as smart materials due to the their capability to perform both as sensors and actuators. Composite structures embedded with piezoelectric materials confer the low density, superior mechanical and thermal properties of composite materials along with sensing and vibration control. The aim of this thesis is the study of the dynamic behaviour and vibration attenuation of carbon nanotube reinforced composite plates, integrated with piezoelectric layers at the bottom and top surfaces.