Baroli, Davide

Zilian, Andreas

Open Repository and Bibliography - Luxembourg

ICMAMS 2018First International Conference on Mechanics of Advanced Materials and StructuresTurin, 17-20 June 2018www.icmams.comANALYSIS OF FSI-DRIVEN ENERGY HARVESTINGDEVICES USING PARAMETERISED REDUCED-ORDERMODELSA. Zilian1,* and D. Baroli11 Institute of Computational Engineering, FSTC, University of Luxembourg, Luxembourg* Corresponding author: andreas.zilian@uni.luA specific class of energy harvester devices for renewable energy resources allowsconversion of ambient fluid flow energy to electrical energy via flow-induced vibra-tions of a piezo-ceramic composite structure positioned in the flow field. This energyconverter technology simultaneously involves the interaction of a composite struc-ture and a surrounding fluid, the electric charge accumulated in the piezo-ceramicmaterial and a controlling electrical circuit. In order to predict the efficiency andoperational properties of such future devices and to increase their robustness andperformance, a mathematical and numerical model of the complex physical system isrequired to allow systematic computational investigation of the involved phenomenaand coupling characteristics.The presentation will discuss a monolithic modelling approach that allows si-multaneous analysis of the harvester, which involves surface-coupled fluid-structureinteraction, volume-coupled electro-mechanics and a controlling energy harvestingcircuit. Based on a finite element discretisation of the weighted residual form of thegoverning equations, time- and frequency-domain analysis enables investigation ofdifferent types of structures (plate, shells) subject to exterior/interior flow with vary-ing parameters, and attached electrical circuits with respect to the electrical poweroutput generated. Consequently, options for parametric reduced-order modelling offlow-driven energy harvesters will be discussed.References[1] S. Ravi, A. Zilian, Time and frequency domain analysis of piezoelectric energyharvesters by monolithic finite element modeling, Int. J. for Numerical Methodsin Engrg, 112(12):1828–1847, 2017.[2] S. Ravi, A. Zilian, Monolithic modeling and finite element analysis of piezo-electric energy harvesters, Acta Mechanica, 228(6):2251–2267, 2017.[3] S. Ravi, A. Zilian, Numerical Modeling of Flow-Driven Piezoelectric EnergyHarvesting Devices, in: Computational Methods for Solids and Fluids, Springer,2016.

Analysis of FSI-driven energy harvesting devices using parameterised reduced-order models

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Analysis of FSI-driven energy harvesting devices using parameterised reduced-order models

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