This paper presents the numerical analysis and optimization of the wave energy converter, Sea Wave Energy Extraction Device (SeaWEED), which is considered as an improved attenuator consisting of four modules connected by rigid truss structures. A potential-flow-based frequency-domain program based on the Lagrange multiplier method was developed to predict the hinged motions and the power takeoff (PTO) of SeaWEED. The numerical method was validated by using experimental data. Optimization studies were further carried out by considering various parameters, including damping coefficients of the PTO systems, lengths of truss structures, and draft of the device. The uniform design method was used for sampling, and the response surface method was employed for surrogate construction. An optimal combination of parameters was determined for an intended operation site.

This content is only available via PDF.
You do not currently have access to this content.