Cut-corner prism piezoelectric energy harvester based on galloping enhancement mechanism

Optimization of cantilever piezoelectric harvester to triangular shape with material reduction using finite element analysis

“…Various shapes have been studied in the literature, such as circular, rectangular, triangular, trapezoidal, L-shape, E-shape, V-shape, etc. [ [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] , [34] ]. Optimizations of the material and of the effectiveness of piezoelectric harvesters can be studied using finite element method (FEM) software by optimizing the shape and size of the cantilever [ 35 ].…”

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

“…There are various types of devices for collecting vibration energy. These can be classified into electromagnetic harvesting devices [ 9 , 10 , 11 ], electrostatic harvesting devices [ 12 , 13 , 14 ], piezoelectric harvesting devices [ 15 , 16 , 17 ], and frictional electric harvesting devices [ 18 , 19 , 20 ] according to their different principles of power generation. The operating principle of electromagnetic energy harvesting devices is based on Faraday’s law of electromagnetic induction, and their energy recovery devices are simple and do not require separate power supplies [ 21 , 22 ].…”

A collision-free gallop-based triboelectric-piezoelectric hybrid nanogenerator

“…There are various types of energy in the environment, such as solar energy, wind energy, tidal energy, biomass energy, etc., and wind energy is undoubtedly an inexhaustible and very clean energy. So far, energy harvesting technologies have been extensively developed in several types: triboelectric ( Liu et al., 2021 ; Chen et al., 2018 ; Fan et al., 2012 ; Wang et al., 2017 ; Wang, 2014 ), piezoelectric ( Abdelkefi et al., 2014 ; Alhadidi et al., 2020 ; Wang et al., 2021 ; Hu et al., 2018a ), electrostatic ( Mitcheson et al., 2004 ; Basset et al., 2014 ), pyroelectric ( He et al., 2022b ), and electromagnetic ( Avila Bernal and Linares García, 2012 ; He et al., 2022a ; Vicente-Ludlam et al., 2014 ). Compared to several other energy harvesting techniques, the use of piezoelectric and triboelectric is more suitable for this type of low frequency vibration, and a more systematical comparison is shown in Table S1 .…”