Performance enhancement of piezoelectric energy harvesters from wake galloping

Abdelkefi, Abdessattar; Scanlon, John M.; McDowell, E.; Hajj, Muhammad R.

doi:10.1063/1.4816075

Cited by 137 publications

(52 citation statements)

References 24 publications

(24 reference statements)

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“…However, the dynamic response of vortex-induced piezoelectric energy harvesting systems with more cylinders would be complex because of the interacting effects. Taking two cylinders as an example, Abdelkefi et al [42] studied two vertical piezoelectric energy harvesters arranged in a tandem pattern in the airflow. Both of the harvesters were individually equipped with a circular cylinder and a square section cylinder.…”

Section: Introductionmentioning

confidence: 99%

A Novel Piezoelectric Energy Harvester Using the Macro Fiber Composite Cantilever with a Bicylinder in Water

Song

Shan

et al. 2015

Applied Sciences

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Abstract:A novel piezoelectric energy harvester equipped with two piezoelectric beams and two cylinders was proposed in this work. The energy harvester can convert the kinetic energy of water into electrical energy by means of vortex-induced vibration (VIV) and wake-induced vibration (WIV). The effects of load resistance, water velocity and cylinder diameter on the performance of the harvester were investigated. It was found that the vibration of the upstream cylinder was VIV which enhanced the energy harvesting capacity of the upstream piezoelectric beam. As for the downstream cylinder, both VIV and the WIV could be obtained. The VIV was found with small L/D, e.g., 2.125, 2.28, 2.5, and 2.8. Additionally, the WIV was stimulated with the increase of L/D (such as 3.25, 4, and 5.5). Due to the WIV, the downstream beam presented better performance in energy harvesting with the increase of water velocity. Furthermore, it revealed that more electrical energy could be obtained by appropriately matching the resistance and the diameter of the cylinder. With optimal resistance (170 kΩ) and diameter of the cylinder (30 mm), the maximum output power of 21.86 μW (sum of both piezoelectric beams) was obtained at a water velocity of 0.31 m/s.

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Section: Introductionmentioning

confidence: 99%

A Novel Piezoelectric Energy Harvester Using the Macro Fiber Composite Cantilever with a Bicylinder in Water

Song

Shan

et al. 2015

Applied Sciences

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“…Abdelkefi et al [14] carried out experiments to investigate the effects of wake galloping on the range of flow speeds over which a galloping-based piezo-aeroelastic energy harvester can be effectively used. Two different upstream cylinders and a wide range of spacing between the upstream and downstream cylinders were considered.…”

Section: Introductionmentioning

confidence: 99%

Enhanced mechanical energy extraction from transverse galloping using a dual mass system

Vicente-Ludlam

Barrero-Gil

Velázquez

2015

Journal of Sound and Vibration

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This paper offers a theoretical study of energy extraction through transverse galloping using a dual-mass system. To this end, a two-degree-of-freedom model is developed where fluid forces on the galloping body are described resorting to quasi-steady hypothesis; the model is solved approximately by using the Harmonic Balance Method. Three possible configurations of the dual-mass system have been analyzed. Two of them show an improvement in the efficiency of energy extraction with respect to that of the single mass configuration when the mechanical properties of the dual-mass system are appropriately chosen. In addition, the dual-mass system promotes a broadening of the values of the incident flow velocities at which the efficiency is kept high.

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“…The applicability was demonstrated by Jung et al [41]. Abdelkefi et al [137,138] used a square section downstream bluff body to study EH from wake effects.…”

Section: Vortex-induced Vibrations Generated In Wake Vorticesmentioning

confidence: 98%

Energy harvesting by means of flow-induced vibrations on aerospace vehicles

Ronch

et al. 2016

Progress in Aerospace Sciences

140

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This paper reviews the design, implementation, and demonstration of energy harvesting devices that exploit flow-induced vibrations as the main source of energy.Starting with a presentation of various concepts of energy harvesters that are designed to benefit from a general class of flow-induced vibrations, specific attention is then given at those technologies that may offer, today or in the near future, a potential benefit to extend the operational capabilities and to monitor critical parameters of

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Performance enhancement of piezoelectric energy harvesters from wake galloping

Abstract: A.; Scanlon, J. M.; McDowell, E.; et al., "Performance enhancement of piezoelectric energy harvesters from wake galloping," Appl. Phys. Lett. 103, 033903 (2013); http:// dx

Cited by 137 publications

References 24 publications

A Novel Piezoelectric Energy Harvester Using the Macro Fiber Composite Cantilever with a Bicylinder in Water

A Novel Piezoelectric Energy Harvester Using the Macro Fiber Composite Cantilever with a Bicylinder in Water

Enhanced mechanical energy extraction from transverse galloping using a dual mass system

Energy harvesting by means of flow-induced vibrations on aerospace vehicles

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