Sorry, you need to enable JavaScript to visit this website.

Development of a simplified analytical model for a passive inertial system solicited by wave motion

TitoloDevelopment of a simplified analytical model for a passive inertial system solicited by wave motion
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2016
AutoriRinaldi, G., Fontanella A., Sannino Gianmaria, Bracco G., Giorcelli E., Mattiazzo G., and Bludszuweit H.
RivistaInternational Journal of Marine Energy
Volume13
Paginazione45-61
ISSN22141669
Parole chiaveAnalytical models, Froude scaling, MATLAB, Models, Naval architecture, Passive systems, Power takeoffs, SimMechanics, Tanks (containers), Wave energy conversion, Wave energy converters, Wave power, Wave tank
Abstract

This paper presents a theoretical and experimental investigation about the modelling of a 1:45 scale prototype Wave Energy Converter (WEC). An analytical model is implemented to describe its behaviour in a wave tank. The aim is to provide a contribution to modelling tools used for WEC characterisation and design. Hydrodynamic characterisation software is avoided in favour of a simpler and more versatile design tool destined to a wider range of users. Therefore, an alternative approach is presented, based on mechanical analogies and the use of Matlab/Simulink/SimMechanics environment. This analytical model was constructed using linear wave theory, coupled with a non-linear model for the device and its power take-off system (PTO). Assumptions on incident waves and geometric properties of the device were required and implemented on the basis of literature of naval architecture, ships stabilization and control issues. Simulation results were compared and validated with those obtained in the same range of experimental tests of the prototype in wave tank. Trends and values of both investigation techniques show a good agreement, indicating the validity of the methodology adopted and leaving space for future improvements of the same. Finally, as example of application, the model was applied in a show case in order to estimate the energy yield by the WEC if scaled to real size, using Froude scaling. Results are encouraging and show the viability of the proposed design. © 2015 Elsevier Ltd.

Note

cited By 0; Article in Press

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84960925601&doi=10.1016%2fj.ijome.2015.10.003&partnerID=40&md5=51b6d04323abd92b1f4dbc894dbef98f
DOI10.1016/j.ijome.2015.10.003
Citation KeyRinaldi2016