A system and method that reduces wave-making resistance of at least one follower vessel following at least one lead vessel operating in a seaway based on a determination of time-dependent variations in the Kelvin wake waves being generated by the lead vessel when operating in a seaway. By using a time-dependent Kelvin wake wave generation approach, the determination of where to position the follower vessel in a reduced wave-making resistance region may be improved, such as when the lead vessel changes direction and/or speed in the seaway. Such an approach may position the follower vessel based on information associated with the Kelvin wake wave generated by the lead vessel in the past, which the follower vessel approaches this past-generated Kelvin wake wave and is positioned in the reduced wave-making resistance region associated with this past-generated Kelvin wake wave.

A system and method that reduces wave-making resistance of at least one follower vessel following at least one lead vessel operating in a seaway based on a determination of time-dependent variations in the Kelvin wake waves being generated by the lead vessel when operating in a seaway. By using a time-dependent Kelvin wake wave generation approach, the determination of where to position the follower vessel in a reduced wave-making resistance region may be improved, such as when the lead vessel changes direction and/or speed in the seaway. Such an approach may position the follower vessel based on information associated with the Kelvin wake wave generated by the lead vessel in the past, which the follower vessel approaches this past-generated Kelvin wake wave and is positioned in the reduced wave-making resistance region associated with this past-generated Kelvin wake wave.

A method to rapidly form a reconfigurable multihull multiplatform floating vessel includes installing a plurality of pin connectors on a plurality of longitudinal hulls, installing a plurality of joints on the plurality of longitudinal hulls, positioning the plurality of longitudinal hulls with the plurality of pin connectors and the plurality of joints proximate each other, mounting a first moveable planar platform having a first end and a second end with the first moveable planar platform mounted a preset distance above a load line of the first longitudinal hull, mounting a second moveable planar platform having a first end and a second end, forming a platform void extending between pairs of moveable planar platforms to provide increased safety for equipment and personnel on the moveable planar platform by preventing impact together of longitudinal hulls, and forming a hull void extending between pairs of longitudinal hulls.

A method to rapidly form a reconfigurable multihull multiplatform floating vessel includes installing a plurality of pin connectors on a plurality of longitudinal hulls, installing a plurality of joints on the plurality of longitudinal hulls, positioning the plurality of longitudinal hulls with the plurality of pin connectors and the plurality of joints proximate each other, mounting a first moveable planar platform having a first end and a second end with the first moveable planar platform mounted a preset distance above a load line of the first longitudinal hull, mounting a second moveable planar platform having a first end and a second end, forming a platform void extending between pairs of moveable planar platforms to provide increased safety for equipment and personnel on the moveable planar platform by preventing impact together of longitudinal hulls, and forming a hull void extending between pairs of longitudinal hulls.

The present invention relates to a semi-submersible offshore structure. More particularly, the invention relates to a low motion semi-submersible offshore structure that has improved stability in deep water. The low motion semi-submersible experiences relatively lesser heave, pitch and wave motions compared to conventional semi-submersibles when the semi-submersible is operating in harsh offshore environments.

The present invention relates to a semi-submersible offshore structure. More particularly, the invention relates to a low motion semi-submersible offshore structure that has improved stability in deep water. The low motion semi-submersible experiences relatively lesser heave, pitch and wave motions compared to conventional semi-submersibles when the semi-submersible is operating in harsh offshore environments.

A floating wind power generation device comprises: a main buoyant body which has buoyancy and a space portion provided in the center; an auxiliary buoyant body which has buoyancy and is connected to the main buoyant body by being inserted into the space portion of the main buoyant body; a plurality of wind power generators which are vertically provided on top of the auxiliary buoyant body and generate power; a location control means which is connected to the main buoyant body and controls the location of the main buoyant body; an oscillation inhibiting means which is connected to the main buoyant body and enables the main buoyant body to maintain an equilibrium state by absorbing the sea waves; and a dock connection unit which is connected to the main buoyant body and enables a ship to lie at anchor on the sea.

A floating wind power generation device comprises: a main buoyant body which has buoyancy and a space portion provided in the center; an auxiliary buoyant body which has buoyancy and is connected to the main buoyant body by being inserted into the space portion of the main buoyant body; a plurality of wind power generators which are vertically provided on top of the auxiliary buoyant body and generate power; a location control means which is connected to the main buoyant body and controls the location of the main buoyant body; an oscillation inhibiting means which is connected to the main buoyant body and enables the main buoyant body to maintain an equilibrium state by absorbing the sea waves; and a dock connection unit which is connected to the main buoyant body and enables a ship to lie at anchor on the sea.

A multihull multiplatform floating vessel with a plurality of longitudinal hulls, a plurality of pin connectors; each pin connector providing one axis motion, a plurality of joints, each joint providing two axis motion, wherein the first joint is mounted on one hull the second joint is mounted on a second hull and wherein one group of pin connectors is mounted on one hull and a second group of pin connectors is mounted on the second hull. A first moveable planar platform is connected to the hulls and a second moveable planar platform is connected to the hulls by the pin connectors and joints, the platforms spaced apart from each other forming a platform void between pairs of platforms, and a hull void between pairs of hulls increasing safety onboard and decreasing motion of the moveable planar platforms as mounted to the longitudinal hulls.

A multihull multiplatform floating vessel with a plurality of longitudinal hulls, a plurality of pin connectors; each pin connector providing one axis motion, a plurality of joints, each joint providing two axis motion, wherein the first joint is mounted on one hull the second joint is mounted on a second hull and wherein one group of pin connectors is mounted on one hull and a second group of pin connectors is mounted on the second hull. A first moveable planar platform is connected to the hulls and a second moveable planar platform is connected to the hulls by the pin connectors and joints, the platforms spaced apart from each other forming a platform void between pairs of platforms, and a hull void between pairs of hulls increasing safety onboard and decreasing motion of the moveable planar platforms as mounted to the longitudinal hulls.