Results 1 to 10 of about 6,670,254 (207)

A Magnetically Coupled Piezoelectric–Electromagnetic Low-Frequency Multidirection Hybrid Energy Harvester

Micromachines, 2022
The traditional single electromechanical conversion energy harvester can collect energy only in a single vibration direction. Moreover, it requires high environmental vibration frequency, and its output power is low.
Yongqiang Zhu, Zhaoyang Zhang, Pingxia Zhang, Yurong Tan   +3 more
doaj   +2 more sources

Performance of an omnidirectional piezoelectric wind energy harvester

Wind Energy, 2021
This paper presents a vortex‐induced vibration (VIV)‐based piezoelectric energy harvester that performs well for all wind directions, a so‐called omnidirectional wind energy harvester.
Tianyi Shi, Gang Hu, Lianghao Zou, Jie Song, Kenny C.S. Kwok   +4 more
doaj   +2 more sources

Automatic Resonance Tuning Technique for an Ultra-Broadband Piezoelectric Energy Harvester

Energies, 2022
The main drawback of energy harvesting using the piezoelectric direct effect is that the maximum electric power is generated at the fundamental resonance frequency.
Sallam A. Kouritem, Muath A. Bani-Hani, Mohamed Beshir, Mohamed M. Y. B. Elshabasy, Wael A. Altabey   +4 more
doaj   +2 more sources

Piezoelectric Energy Harvester Technologies: Synthesis, Mechanisms, and Multifunctional Applications. [PDF]

ACS Appl Mater Interfaces
Piezoelectric energy harvesters have gained significant attention in recent years due to their ability to convert ambient mechanical vibrations into electrical energy, which opens up new possibilities for environmental monitoring, asset tracking ...
He Q, Briscoe J.
europepmc   +2 more sources

Piezoelectric Energy Harvester Response Statistics

Micromachines, 2023
Safety and reliability are essential engineering concerns for energy-harvesting installations. In the case of the piezoelectric galloping energy harvester, there is a risk that excessive wake galloping may lead to instability, overload, and thus damage ...
O. Gaidai, Yu Cao, Y. Xing, Junlei Wang
semanticscholar   +1 more source

Research on piezoelectric vibration energy harvester with variable section circular beam

Journal of Low Frequency Noise, Vibration and Active Control, 2021
In order to reduce the natural frequency of the piezoelectric vibration energy harvester, improve performance of the piezoelectric vibration energy harvester, and meet the requirements of energy acquisition in the low-frequency vibration environment, a ...
Tianbing Ma, Yongjing Ding, Xiaodong Wu, Nannan Chen, Menghan Yin   +4 more
doaj   +1 more source

Theoretical Study on Widening Bandwidth of Piezoelectric Vibration Energy Harvester with Nonlinear Characteristics

Micromachines, 2021
In order to make a piezoelectric vibration energy harvester collect more energy on a broader frequency range, nonlinearity is introduced into the system, allowing the harvester to produce multiple steady states and deflecting the frequency response curve.
Zhang Qichang, Yang Yang, Wang Wei
doaj   +1 more source

Impacts of Nonlinear Energy Harvesting and Residual Self-Interference on the Performance of Full-Duplex Decode-and-Forward Relay System

IEEE Access, 2021
In this paper, we investigate the usage of a nonlinear energy harvester at a full-duplex (FD) relay, which can harvest the energy from radio frequency (RF) signals transmitted from the source. We mathematically derive the exact closed-form expressions of
Ba Cao Nguyen, Tran Manh Hoang, Le The Dung, Taejoon Kim   +3 more
doaj   +1 more source

Two-Dimensional Omnidirectional Wind Energy Harvester with a Cylindrical Piezoelectric Composite Cantilever

Micromachines, 2023
To improve the response-ability of the energy harvester to multidirectional wind, this paper proposes a wind energy harvester to scavenge wind-induced vibration energy.
Mingyong Xin, Xueling Jiang, Changbao Xu, Jing Yang, Caijiang Lu   +4 more
doaj   +1 more source

Improved Interface Circuit for Enhancing the Power Output of a Vibration-Threshold-Triggered Piezoelectric Energy Harvester

Energies, 2020
The vibration-threshold-triggered piezoelectric energy harvester is a new type of piezoelectric energy harvester with a two-stage structure, which can generate electricity in a low frequency environment and recognize vibration intensity at the same time.
Jiqiang Liu, Junjie Yang, Ruofeng Han, Qisheng He, Dacheng Xu, Xinxin Li   +5 more
doaj   +1 more source