We present a piezoelectric energy-harvesting system, which is able to self-tune its
resonance frequency in an energy-autonomous way, in order to extend its efficient operation …

In this paper, a novel smart vibration energy harvester (VEH) is presented. The harvester
automatically adjusts its natural frequency to stay in resonance with ambient vibration. The …

In this paper, a new design of a self-tuning bimorph PZT beam for maximum vibration energy
harvesting is introduced. As is well known, a PZT beam harvester captures the most energy …

In this paper, we present a novel vibration-based piezoelectric energy harvester, capable of
collecting power at multiple operating frequencies and autonomously adapting itself to the …

We report the development of a piezoelectric energy harvester, whose resonance frequency
can be tuned electrically by applying mechanical preloads through piezoelectric actuators …

We experimentally demonstrate a true wide bandwidth vibration energy harvester based on
piezoelectric transduction. Our device is designed to work specifically off-resonance under …

In recent years, harvesting energy from broadband or low-frequency vibrations via
piezoelectric effect has been realized due to worldwide research efforts, however harvesting …

A piezoelectric energy harvester is an electromechanical device that converts ambient
mechanical vibration into electric power. Most existing vibration energy harvesting devices …

A fundamental drawback of vibration-based energy harvesters is that they typically feature a
resonant mass/spring mechanical system to amplify the small source vibrations; the limited …

This paper presents a novel electrically tunable structure which can be used as a resonator
for vibration-based energy harvesters. The adjustment of the resonance frequency is …