Hysteresis nonlinearity of piezoelectric actuator deteriorates its control performance. Unlike traditional model-based control scheme, this paper employs a novel adaptive control algorithm without modeling of hysteresis to achieve a precise tracking control. The piezoelectric actuator system in question consists of models in the form of a linear time-invariant dynamic system in series with a di...

The active vibration suppression of a flexible link manipulator using a smart structure (piezoelectric actuator) is investigated. For this purpose, a Finite Element (FE) model is developed for the modal and transient analysis of a cantilever beam and a flexible link manipulator. The novelty of this work is in the development of an accurate finite element model of a piezoelectric and beam/manipu...

This study demonstrates a technology, ‘‘Piezoelectric Windmill’’, for generating the electrical power from wind energy. The electric power-generation from wind energy is based on piezoelectric effect and utilizes the bimorph actuators. Piezoelectric Windmill consists of piezoelectric actuators arranged along the circumference of the mill in the cantilever form. Using the camshaft gear mechanism...

Although widely investigated, novel electromechanical actuators with high overall actuation performance are still in urgent need for various practical and scientific applications, such as robots, prosthetic devices, sensor switches, and sonar projectors. In this work, combining the properties of unique environmental perturbations-actuated deformational isomerization of polydiacetylene (PDA) and...

A beam containing a piezoelectric layer or layers is used for harvesting from various processes. The structure of the made by gluing material on one side (unimorph) both sides (bimorph) carrying substrate. Two layers, glued substrate, may be electrically parallel series connected. This paper presents an experimental analysis impact and connections two Macro Fiber Composite (MFC) MFC patches in ...

An actuator is a device that converts input energy into mechanical energy. According to various types of input energy, various actuators have been advanced. Displacement in the electromagnetic, hydraulic and pneumatic actuators achieve by moving a piston via electromagnetic force or pressure, however the piezoelectric actuator (piezoceramic plates) displace directly. Therefore, accuracy and spe...

In recent years, micro electro-mechanical system (MEMS)-based biomedical devices have been investigated by various researchers for biomedicine, disease diagnosis, and liquid drug delivery. The micropump based are of considerable significance accurate delivery diagnosis. the present study, design aspects piezoelectric actuated used extraction blood sample presented. A pentagonal microneedle, whi...

Hysteresis is an important nonlinear effect exhibited by piezoelectric actuators and its control has been drawing considerable attention. This paper presents the development of an inversion based model predictive control to compensate for piezoelectric actuator hysteresis. Experiments were carried out to verify the effectiveness of the developed control method. The result obtained shows that th...