Abstract
Concerning a Wave Energy Converter (WEC), an optimal design is mandatory to exploit all the available energy and to reduce the associated cost. Behind this multi-objective optimization, millions of numerical simulations are performed to statistically predict the WEC behaviour. In this work, a non-linear frequency-domain modelling technique, known as spectral-domain, is proposed to provide a more precise numerical tool in respect to a classic frequency-domain one avoiding the computational burden associated to time-domain simulations. The paper pursues the analytical derivation and numerical experiments of two spectral-domain models of two different Power Take-Off (PTO) systems. The main aim is to develop the equations behind the spectral-domain framework and proof the numerical effectiveness of such a modelling technique compared with its time-domain counterpart.
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Bonfanti, M., Bracco, G. (2022). Non-linear Frequency Domain Modelling of a Wave Energy Harvester. In: Niola, V., Gasparetto, A., Quaglia, G., Carbone, G. (eds) Advances in Italian Mechanism Science. IFToMM Italy 2022. Mechanisms and Machine Science, vol 122. Springer, Cham. https://doi.org/10.1007/978-3-031-10776-4_100
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DOI: https://doi.org/10.1007/978-3-031-10776-4_100
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