The main objective of this study is to develop a fast and validated model predict the motions’ responses spar-buoy wave energy converter based on oscillating water column principle. Experiments former investigations highlighted strong effect heave motion performance OWC whereas oscillations slightly affect motions. Therefore, single degree freedom was adopted simulate structure’s surge, heave, ...

Flash butt welding is a resistance process that offers great advantages due to its high thermal efficiency, simplicity and speed, makes it ideal for mooring chains. Despite advantages, numerous corrosion problems are still being found in practice, both the heat-affected zone weld line. Literature scarce about it, limiting mostly state problem. The majority of studies attribute this preferential...

The main objective of the joint Nansen Legacy and A-TWAIN/SIOS-InfraNor mooring service cruise was recovery deployment projects’ moorings in Barents Sea north Svalbard. Additionally, CTD stations with water sampling for both projects, a Seaglider Legacy, recoveries deployments partner projects were planned depending on sea ice conditions time available.

Sound speed in the oceans depends on temperature, salinity, and pressure and has large seasonal and spatial variations. Since temperature and salinity variations are large compared to pressure, we studied the relative importance of these two parameters on sound speed by analyzing the hourly profiles for one year (16 October 1994 – 22 October 1995) up to 250 m depth from the Woods Hole Oceanogra...

Complex sensitive motions have been observed in ocean mooring systems consisting of nonlinear mooring geometries. These physical systems can be modeled as a system of first-order nonlinear ordinary differential equations, taking into account geometric nonlinearities in the restoring force, quadratic viscous drag, and harmonic excitation. This study examines the controllability of these systems ...

While previous research on software ecosystems (SECO) mostly focused on SECO providers or software developers, recent studies have begun to analyze the user perspective and try to explain switching behavior. However, SECOs are complex and consist of several components. Since current switching theories do not fully account for these complex structures, these need to be adapted. We expand the pus...