Mooring Stability Study for Novel Wave Energy Converter Based on Regular Wave

Abstract

The mooring system not only plays a vital role in keeping wave energy generators floating stably, but also affects the success of engineering design. Combining wave force theory and the hydrological data obtained from the field measurements of a certain sea area in the Bohai Sea, the Stokes second-order wave theory was adopted to design the mooring system of a new type of power-generating device. At the same time, the study uses the Aqwa software to gather the dynamic data of a power-generating device in a real test, and then makes models and carries out regular wave tests so as to verify the viability of the mooring system and the stability of the whole power-generating device. All of this work will provide a theoretical basis for the manufacture of an engineering prototype and its reliable supply of power.

Modeling and Numerical Simulation of Semitensioned Mooring Line under Taut-Slack State

“…Ivan and Neven [5] developed a fnite element model considering the diameter and axial deformation of the mooring line, which can calculate hydrodynamic force more accurately when simulating the cable's large motion. Meng et al [6] designed a mooring system of wave energy converter by using the second-order Stokes theory and verifed the stability of the mooring system and the whole device through model experiments. Behbahani-Nejad and Perkins [7] studied longitudinal-transverse coupled waves propagating along elastic cables.…”