2014
DOI: 10.1088/0964-1726/23/4/045015
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Effect of hydrodynamic interaction on energy harvesting in arrays of ionic polymer metal composites vibrating in a viscous fluid

Abstract: In this paper, we investigate underwater energy harvesting of a parallel array of nominally identical ionic polymer metal composites (IPMCs) subjected to low frequency base excitation in water. The IPMCs are connected in parallel and shunted with a varying resistor. We model the IPMCs as slender beams with uniform cross section undergoing small oscillations in an otherwise quiescent viscous fluid. We utilize a boundary element approach to compute the hydrodynamic loading on each structure, which is due to the … Show more

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Cited by 31 publications
(21 citation statements)
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References 65 publications
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“…There are a few examples of passive IPMC array systems, primarily designed for applications of energy harvesting. Porfiri et al produced two passive IPMC array systems for energy harvesting: a turbine system with IPMCs on the airfoils that spins while in a flow channel (Cellini et al 2014a) and an IPMC array that vibrates when moved through the water (Cellini et al 2014b). Though it has been shown that passive IPMC systems are possible, an active system is best in order to recreate the flying-fish wing more accurately.…”
Section: Development Of Hardware For Driving An Ipmc Actuator Arraymentioning
confidence: 99%
“…There are a few examples of passive IPMC array systems, primarily designed for applications of energy harvesting. Porfiri et al produced two passive IPMC array systems for energy harvesting: a turbine system with IPMCs on the airfoils that spins while in a flow channel (Cellini et al 2014a) and an IPMC array that vibrates when moved through the water (Cellini et al 2014b). Though it has been shown that passive IPMC systems are possible, an active system is best in order to recreate the flying-fish wing more accurately.…”
Section: Development Of Hardware For Driving An Ipmc Actuator Arraymentioning
confidence: 99%
“…[57][58][59][60] Recent applications of IPMC sensing capabilities span the measurement of force, flow, shear loading, curvature, structural health monitoring and energy harvesting. [61][62][63][64][65][66][67][68][69] IPMCs generate charges when experiencing a mechanical load or deformation. If the polymer is not deformed, the distribution of cations inside the polymer is uniform and no output voltage is detected.…”
Section: -19mentioning
confidence: 99%
“…The power harvested at the radian frequency x is optimized at [8,12,61] R opt load ðxÞ ¼ jZðxÞj ð25Þ…”
Section: Electrical Responsesmentioning
confidence: 99%
“…While the very first efforts on IPMC-based energy harvesting have focused on in-air vibrations [10,61], underwater energy harvesting has been recently studied by several authors, who have contributed to an improved understanding of the process of energy transduction in these materials [4,8,12,13,18,19,29]. Underwater flexural vibrations of an IPMC undergoing base excitation have been analyzed in [8].…”
Section: Introductionmentioning
confidence: 99%
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