Nonlinear dynamics for broadband energy harvesting: Investigation of a bistable piezoelectric inertial generator

A piezoelectric bistable plate for nonlinear broadband energy harvesting

“…2-5 So far, bistable cantilevered beams showing a wider range of high energy conversion have been proposed showing encouraging results in this research direction. 4,6 This paper presents a broadband harvesting concept based on piezoelectric bistable composite plates. Bistable composites have been studied in the past for morphing applications due to their ability to attain two statically stable shapes.…”

Energy harvesting in a quad-stable harvester subjected to random excitation

“…The magnetic moment vector m is dependent on the magnet's volume V and its magnetization vector M. Magnetization vector M is related to the magnet's residual flux density B r , M = B r /µ 0 , where µ 0 = 4π × 10 −7 Hm −1 is the magnetic permeability constant. [16][17][18] Let m i represent the magnetic moment vectors of magnet i (A, B or C), then the potential energy of the magnetic field generated by the three external magnets (A, B and C) upon magnet D can be given by AIP Advances 6, 025022 (2016) FIG. 2.…”

Modeling and analysis of a horizontally-aligned energy harvester

“…Another approach is resonant frequency tuning which can be achieved by changing the mechanical parameters of the structure while widening the bandwidth can be achieved by employing an array of structures with different resonant frequencies [8]. A new approach that has been investigated in recent years is the use of nonlinear dynamical systems and their properties in order to widen the frequnecy band of operation and enhance the harvested power [11] [10]. In this paper, we analyze a new type of nonlinear VEH that uses a double-impact oscillator as its harvesting element.…”