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Publications
Hallak, T.S., Gaspar, J.F. and Guedes Soares, C. (2023), Dynamics of wave point absorbers connected to a central floating platform, 15th European Wave and Tidal Energy Conference (EWTEC 2023), 4-7 September, Bilbao, Spain, paper 496, pp. 1-7
In this paper, the dynamics and hydrodynamics of multi-body floating systems is investigated considering the interconnection of wave point absorbers with a floating platform and the nonlinear mechanical constraints that arise naturally in hinged structures. To achieve that, a method of constraint linearization is proposed and applied to a realistic case study. The method is based on generalized coordinates and generates a robust first-order dynamic matrix to characterize the multi-degrees of freedom mechanical system. The simulation outputs the motion response for all floating bodies, as well as the constraining forces responses, among other parameters. The method requires knowledge of the geometries of the system but rather few assumptions, namely, to perform the linearization of constraints. The method is illustrated considering the case study of three conical wave point absorbers concentrically attached to a Floating Offshore Wind Turbine platform and on-board hydraulic Power-Take Off system.
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