Diseño de un convertidor de energía undimotriz para el archipiélago de galápagos : diseño hidromecánico y estructural de una estructura sumergida con perfil hidrodinámico y doble fuerza de arrastre que permita el control de movimiento de un wec.

Abstract

The work deals with the hydromechanical, and structural design of a double drag force subsea structure, which may be able to modify the roll natural period of a vessel, and make it resonate with the peak period of swells in The Galapagos Islands. These subsea bodies are attached from the sided of a vessel by using cables, its hydrodynamic geometry in addition of considering strcutrual mass, the entrapped water mass inside the object allows the increasing of the mass moment of inertia, and thus, increase the roll natural period. To control the excess of roll motion, drag leaf springs are linked to the perimeter of the subsea bodies, whose structural fatigue limit design is carried out. For a vessel of 14 (m) width, 30 (m) length, and a draught of 2.60 (m), the subsea bodies lead to increase the natural period from 5 (s) to 13 (s) approximately.