Power extraction from floating elastic plates

S. Michele, F. Buriani, E. Renzi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We present a novel mathematical model to investigate the extraction of wave power by flexible elastic floaters. The model is based on the method of dry modes, coupled with a matched eigenfunction expansion. Our model results compare satisfactorily with preliminary data obtained from a demonstrator device, developed at the University of Groningen. We show that the role of elasticity is to increase the number of resonant frequencies with respect to a rigid body, which has a positive effect on wave power output. The mathematical model is then extended to irregular incident waves, described by a JONSWAP spectrum. Our results show that the peak capture factors decrease in irregular waves, as compared to the monochromatic case. However, the system becomes more efficient at non-resonant frequencies. This work highlights the need to scale-up experimental investigations on flexible wave energy converters, which are still a small minority, compared to those on rigid converters.

Original languageEnglish
Title of host publication14th European Wave and Tidal Energy Conference
Subtitle of host publicationEWTEC 2021
Number of pages9
Publication statusPublished - 5 Sept 2021
Externally publishedYes
Event14th European Wave and Tidal Energy Conference, EWTEC 2021 - Virtual, Online
Duration: 5 Sept 20219 Sept 2021

Publication series

NameProceedings of the European Wave and Tidal Energy Conference
PublisherEuropean Wave and Tidal Energy Conference
ISSN (Print)2706-6932


Conference14th European Wave and Tidal Energy Conference, EWTEC 2021
CityVirtual, Online

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