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This paper studies the transmission synchronization (TS) problem among multiple coupled chaotic systems by considering unknown parameters. In the solving process, we firstly select a special integral sliding surfaces, and then we develop an effective controller with the compensation terms to guarantee the asymptotical stability of all TS error systems. Simultaneously, we design the proper adaptive...
In this paper, a series of FeCuNbSiB/Terfenol-D/PZT (F/M/P) multiphase laminate heterostructures is presented, whose magnetoelectric (ME) coupling characteristics have been investigated. Compared with the traditional Terfenol-D/PZT (M/P) composites, the ME coupling characteristics of the proposed F/M/P heterostructures were significantly improved. The resonant and low-frequency ME voltage coefficient...
In this paper, enhanced acoustoelectric transduction in an acoustic energy harvester using dual Helmholtz resonators has been reported. The harvester uses a pair of cavities mechanically coupled with a compliant perforated plate to enhance the acoustic coupling between the cavity and the plate. The experimental results show that the volume optimization of the second cavity can significantly increase...
In vibration energy harvesting, for the generators to be efficiently applicable over a range of source frequencies, many methods can be adopted, among which the use of array of converters with different resonance frequencies has been reported as particularly effective. However, for a given excitation frequency only one single converter at a time contributes to the power generation, with a corresponding...
The megnetoelectric (ME) effect of magnetostrictive Terfenol-D (Tb1-xDyxFe2-y) and piezoelectric Pb(Zr,Ti)O3 plates bonded on a beryllium bronze substrate is reported. The substrate severs as a frequency determining element and dominates the quality factor (Qm) of the oscillator. The device can be regarded as a driven damped system. Its resonance occurs at multimodes where the Terfenol-D plate...
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