An example method includes: determining wave data corresponding to a floating ground station of an airborne wind turbine, wherein an aerial vehicle is coupled to the floating ground station via a tether; determining, based on the wave data, an oscillation profile of the floating ground station; and operating the aerial vehicle to fly in a closed path with: (a) a looping period that matches the period of wave-influenced oscillation of the floating ground station, and (b) a looping phase that aligns with the oscillation phase of the floating ground station such that movement of the aerial vehicle on a downstroke portion of the closed path corresponds to forward displacement of the floating ground station, and movement of the aerial vehicle on an upstroke portion the closed path corresponds to reverse displacement of the floating ground station.

An example method includes: determining a period of natural oscillation of a floating ground station in an airborne wind turbine with an aerial vehicle coupled to the ground station via a tether, and wherein each natural-oscillation period comprises forward and backward displacement of the floating ground station with respect to the aerial vehicle; and operating the aerial vehicle to fly in a substantially circular path with a looping period that matches the natural-oscillation period of the floating ground station, and a looping phase that aligns with the oscillation phase of the floating ground station such that movement of the aerial vehicle on a downstroke portion the circular path corresponds to forward displacement of the floating ground station, and movement of the aerial vehicle on an upstroke portion the circular path corresponds to reverse displacement of the floating ground station.

The present invention relates to a hydraulic height adjusting device for installing a heavy-weight structure to secure stable horizontal bearing power against a horizontal load of a heavy-weight upper structure. The present invention includes a lower frame which is installed on a top surface of the carrier and is provided with a plurality of receiving portions formed in an upwardly opened shape; and a hydraulic cylinder which is disposed in and engaged to the respective receiving portions of the lower frame, the hydraulic cylinder being moved in a vertical direction to adjust the height of the upper structure, in a state in which an upper end thereof supports the upper structure. The receiving portion is provided with a support guide which is interposed between an inner wall of the receiving portion and the hydraulic cylinder to annually enclose the hydraulic cylinder and thus prevent the hydraulic cylinder from being tilted.

Systems and methods are presented for deploying and using a floating platform using articulated spar legs used as a type of hull, each of the spar legs attached to the floating platform by an articulated connection. Each of the articulated spar legs being moveable from a horizontal to a vertical position, horizontal for transport and vertical for deployment of the floating platform. The articulated spar legs serve to support the floating position of the floating platform. The articulated spar legs are moved from horizontal to vertical position by controlling ballast imposed upon or within spar legs. Each of the articulated spar legs are moveable from a vertical to a horizontal position with a ballast changing method. Systems and methods are presented for extracting natural renewable energy from the environment surrounding the floating platform with energy capture devices modularly affixed to the platform and energy capture devices incorporated into the articulated spar legs.

A fluid cargo handling system includes a quick release manifold system mounted on a floating marine platform. The quick release manifold system has a first valve in fluid communication with the first end of a first fluid transfer hose to control fluid flow within the first fluid transfer hose. A first coupler is attached to the first valve. The first coupler has a first port in fluid communication with the first valve, a second port, a purging fluid inlet and a waste fluid outlet. A drain tank is in fluid communication with the first coupler via the waste fluid outlet, and a pressurized fluid source carried is in fluid communication with the first coupler via the purging fluid inlet.

A fluid cargo handling system includes a marine manifold tower system and a floating marine platform on which is carried a liquid manifold assembly which is coupled to a cryogenic liquid transfer hose extending from the floating marine platform to the marine manifold tower system. The cryogenic liquid transfer hose is also connected to a cryogenic hose manifold assembly mounted on the marine manifold tower system. The marine manifold tower system includes an elongated tower having a first end secured to the seabed and a second end supporting the cryogenic hose manifold assembly, elevating the cryogenic hose manifold assembly above the water surface. The floating marine platform moves between a first position adjacent the marine manifold tower system and a second position, spaced apart from the marine manifold tower system, where the floating marine platform is in fluid communication with a fluid cargo transport vessel.

The present invention relates to a hydraulic height adjusting device for installing a heavy-weight structure to secure stable horizontal bearing power against a horizontal load of a heavy-weight upper structure. The present invention includes a lower frame which is installed on a top surface of the carrier and is provided with a plurality of receiving portions formed in an upwardly opened shape; and a hydraulic cylinder which is disposed in and engaged to the respective receiving portions of the lower frame, the hydraulic cylinder being moved in a vertical direction to adjust the height of the upper structure, in a state in which an upper end thereof supports the upper structure. The receiving portion is provided with a support guide which is interposed between an inner wall of the receiving portion and the hydraulic cylinder to annually enclose the hydraulic cylinder and thus prevent the hydraulic cylinder from being tilted.

A wave energy converter includes a buoyant body and an acceleration tube with a working cylinder and working piston movable therein, a mooring system, and at least one energy collecting device including a hydraulic pump in the form of a hydraulic cylinder having a jacket and an internal pump piston connected to at least one piston rod, which forms a mechanical connection between the buoyant body and the working piston in the working cylinder, wherein at least one float body having a buoyancy in the body of water where the wave energy converter operates is connected to the working piston and wherein the buoyancy of the float body is adapted to maintain the working piston in a desired vertical operating range in the working cylinder when the wave energy converter.

An anchoring system for floating platform which eliminates the pitch and roll movements of the floating platform using anchoring lines (200) attached to the seabed (5), which are supported by several pulleys or rotary fixing means (2, 3) of the floating platform (100) and are all joined in a common counterweight (1) hanging from the floating platform (100). Each anchoring line (200) comprises a direct subline (200d) and a cross subline (200c), which maintain the counterweight (1) always located in correspondence with the central axis (300) of the floating platform (100). It also describes a novel method for installing the floating platform at its destination without the aid of special ships.

The invention relates to a device for fixing floating bodies (1, 1) with a pile (2) which can be fixed at one end to a ground (G) and in the region of the other end of which the floating body (1, 1) can be fixed. For the purpose of providing advantageous fixing conditions, it is proposed that the pile (2) is designed as a telescopic tube (3).