Bi-stable energy harvesting based on a simply supported piezoelectric buckled beam

Abstract

Articles you may be interested inNote: High-efficiency energy harvester using double-clamped piezoelectric beams Rev. Sci. Instrum. 85, 026101 (2014); 10.1063/1.4862820Frequency up-converted wide bandwidth piezoelectric energy harvester using mechanical impact Bi-stable piezoelectric energy harvester has been found as a promising structure for vibration energy harvesting. This paper presents a high performance and simple structure bi-stable piezoelectric energy harvester based on simply supported piezoelectric buckled beam. The potential energy function is established theoretically, and electrical properties of the device under different axial compressive displacements, excitation frequencies, and accelerations are investigated systematically. Experimental results demonstrate that the output properties and bandwidth of the bi-stable nonlinear energy harvester under harmonic mechanical excitation are improved dramatically compared with the traditional linear energy harvester. The device demonstrates the potential in energy harvesting application to low-power portable electronics and wireless sensor nodes. V C 2013 AIP Publishing LLC. [http://dx.

Energy Harvesting Estimation from the Vibration of a Simply Supported Beam

“…Erturk and Inman 10 presented the exact analytical solution of a cantilevered piezoelectric energy harvester with Euler-Bernoulli beam assumptions. Xu et al 11 experimentally studied a high performance bi-stable piezoelectric harvester based on simply supported buckled beam. Erturk and Inman 12 evaluated the performance of the bimorph device extensively for the short circuit and open circuit resonance frequency excitations and the accuracy of the model has been shown in all the cases.…”

On square-wave-driven stochastic resonance for energy harvesting in a bistable system

“…Early work on vibrational harvesting mechanisms primarily concentrated on harvesters operating within linear regimes, [1][2][3][4][5][6] after which the exploitation of nonlinear phenomena began to take over, principally because of the limited bandwidth offered by systems operating purely within the linear response region. Variations around the Duffing oscillator provide several interesting possibilities.…”

Simply-supported multi-layered beams for energy harvesting

“…Previous work on simply-supported beam energy harvesters involved using an axial compressive force as a fundamental frequency tuning mechanism (Leland and Wright (2006)) and for bandwidth improvements (Xu et al (2013)). Leland and Wright (2006) conducted modelling and experiments on a simply-supported energy harvester with a compressive axial force.…”

“…Results indicated a 24% reduction in resonant frequency could be realised compared to the unloaded case whilst maintaining reasonable power levels. Xu et al (2013) performed a study on simply-supported buckled devices showing that bi-stable phenomena can increase the bandwidth and power by over 300% through chaotic and periodic snap-through vibration. Although such research has been conducted on simply-supported energy harvesters, to the knowledge of the authors, performance comparisons between devices having different boundary conditions are not available in the open literature.…”