A control system for a piezoelectric beam actuator, which had one or two inputs, was subject of numerical and laboratory research. The actuator prismatic shape with rectangular cross-section consisted layer carrying substrate made from PCB-FR4 patches Macro Fiber Composite P1 type. MFC were glued on both sides the substrate. An article presents comparison quality signal (one-input actuator) sig...

This paper presents fuzzy logic based independent modal space control (IMSC) and fuzzy logic based modified independent modal space control (MIMSC) of vibration. The rule base of the controller consists of nine rules, which have been derived based upon simple human reasoning. Input to the controller consists of the first two modal displacements and velocities of the structure and the output of ...

The objective of this work is to characterize the nonlinear dependence piezoelectric d15 shear coefficient a composite actuator on static electric field and include effect in finite element (FE) simulations. Levenberg-Marquardt least squares optimization algorithm implemented MATLAB was applied acquire parameters. constant integrated with piezoceramic patches obtained be 732 pC/N at 198 V. expe...

This article presents a new self-powered wireless failure detection method that uses different signal transmission rates from piezoelectric energy harvesters. Reliable sensor network has been challenging due to the power supply issue, often covered by batteries need regular replacement. Piezoelectric harvesting is an excellent option sensors in vibrational environment, but level limited input e...

in this paper, a numerical solution procedure is presented for the forced vibration of a piezoelectric nanowire under thermo-electro-mechanical loads based on the nonlocal elasticity theory within the framework of timoshenko beam theory. using hamilton’s principle, the nonlocal governing differential equations are derived. the governing equations and the related boundary conditions are discreti...

1 Introduction Energy harvesting (EH) research area has been emerged to build self-powered wireless electrical devices such as wireless sensors by collecting ambient or wasted energy. This EH technology is highly demanding because wireless sensors are increasingly used in the areas of structural health monitoring (SHM), building automation, and so on. The battery, a current power source for wir...

In recent times, vibration based energy harvesting has drawn attention of many researchers worldwide. This is due to advancement in Microelectromechanical (MEM) devices and wireless sensors with power requirements in range of microwatts-milliWatts; hence vibration energy sources have promising potentials for such demands. Thus, many attempts were made by researchers to develop different system ...