Flexible piezoelectric PZT/fabric composite material is pliable and tough in nature which is in a lack of traditional PZT patches. It has great application prospect in improving the sensitivity of sensor/actuator made by piezoelectric materials especially when they are used for curved surfaces or complicated conditions. In this paper, glass fiber cloth was adopted as carrier to grow PZT piezoel...

T HE three-dimensional linear theory of elasticity is used to delineate the effect of the thickness, stiffness, and mass density of piezoelectric (PZT) layers on the ® rst ® ve natural frequencies of a simply supported graphite/epoxy laminated plate with PZT layers embedded in it. Platelike smart structures are usually made of PZT patches either embedded in or bonded to the bounding surfaces of...

In this paper, a bio-inspired bending actuator was designed and fabricated using piezoelectric patches and cantilever-shaped beam for controlling nose shape. The aim of this study is to investigate the use of the bending actuator. PZT and single crystal PMN-PT actuators were used to generate translational strain and shear stress. The piezoelectric patches were attached on the clamped cantilever...

In this study, the flexoelectric and piezoelectric distributed sensing signal of toroidal shell is discussed. By considering curvature radii Lamé parameters shell, dynamic strains are derived based on double-curvature shell. Flexoelectric models established. Based direct effect effect, flexoelectric/piezoelectric evaluated respectively. The local neural discussed while sensor patches approach t...

This study is aimed to explore efficiency problems of using PZT patches in active vibration control of beams. The PZT patches are surface-bonded as actuators and strain gages are used as sensors. Distributed moment forcing mode is adopted to derive the control authority of actuators. Uniform beam model is applied when the mass and stiffness of PZT patches are ignored. Stepped beam model is then...