2973results about "Hydrodynamic/hydrostatic features" patented technology

A mooring system for a floating offshore wind power platform, a monitoring system, and a monitoring method. The mooring system comprises a static mooring system and a dynamic mooring system. The static mooring system comprises three mooring cable bundles. Upright columns (1) are consistent with the centers of the mooring cable bundles. The dynamic mooring system comprises a power unit, propeller units (4), and a control unit. A group of propeller units (4) is installed below each upright column (1) of the platform, and each group of propeller units (4) comprises one to four propeller units (4). The monitoring system monitors the platform in real time, obtains the real-time motion level and mooring tension of the platform, and on the basis of offset and inclination requirements and mooring tension requirements of the platform in a real-time motion state, calculates the power required by the propeller units (4) for execution. A conventional mooring method is combined with a power positioning system to reduce the load on the mooring cables and reduce the maximum offset and the inclination angle of the platform foundation, benefiting both the efficiency and service life of dynamic cables and wind turbines.

A craft includes a hull, a wing, a hydrofoil, and a control system. The wing is configured to generate upwards aero lift as air flows past the wing to facilitate wing-borne flight of the craft. The hydrofoil is configured to generate upwards hydrofoil lift during a first mode of operation as water flows past the hydrofoil to facilitate hydrofoil-borne movement of the craft through the water. While the craft is hydrofoil-borne, the control system is configured to determine the upwards aero lift generated by the wing. The control system is further configured to control the hydrofoil to generate downwards hydrofoil lift to counteract the upwards aero lift generated by the wing that maintains the hydrofoil at least partially submerged in the water while the determined upwards aero lift is below a threshold lift.

The invention discloses an intelligent water quality real-time monitoring and early warning unmanned ship and an unmanned ship system, and relates to the field of water quality monitoring and unmanned ships, and the unmanned ship adopts a modular structure and comprises a cabin which is internally provided with a GNSS module, a communication module and a main control module; the double ship bodies are fixed to the two sides of the cabin respectively, and lithium battery packs used for storing energy and supplying power are arranged in the two ship bodies; the top plate is fixed on the top surface of the cabin, and a GNSS antenna, an environment sensing module and a solar panel for converting solar energy into electric energy to assist power supply are arranged on the top plate; the two propellers are fixed to the two sides of the rear portion of the bottom of the cabin respectively and used for providing power for the unmanned ship. The lifting mechanism is arranged in the cabin, carries a water quality monitoring module and is used for driving the water quality monitoring module to ascend and descend. The system realizes the functions of water quality real-time monitoring, environment perception, automatic obstacle avoidance and the like, and has the advantages of modular design, high intelligent level and wide application scenarios.

The invention provides an energy-saving navigation method and system for a combined fleet under intelligent control, and relates to the technical field of data processing, and the method comprises the steps: collecting environment data and ship state data of fleet navigation in real time, carrying out the preprocessing, removing redundant data, obtaining a navigation data set, and obtaining a navigation data set according to the navigation data set; calculating a channel influence value, a sea condition influence value and a wake flow influence value, determining a resistance influence value of each ship according to the values, calculating the required power of each ship, obtaining a required power data set, calculating the compensation power of each ship, analyzing the limitation of the channel on the compensation power of the ships, balancing the distribution of the compensation power among the ships, and obtaining an energy-saving scheme. And the compensation power of each ship is adjusted in real time, the navigation efficiency of the fleet is monitored, execution data are obtained, whether the navigation efficiency reaches preset efficiency or not is analyzed, the resistance influence value of each ship is updated, and a power distribution scheme is adjusted. The propulsive power of the fleet can be intelligently controlled, and energy consumption is saved.

The invention discloses an ecological pontoon device and method for removing heavy metal in a water body, and relates to the technical field of sewage treatment.The ecological pontoon device comprises an overwater moving platform, a power propeller, a self-cruising module assembly, a heavy metal ion removing assembly and a control system, and the power propeller is installed at the bottom of the overwater moving platform; the self-cruising module assembly is mounted on the water mobile platform; the heavy metal ion removal assembly comprises an acrylic square groove formed in the water moving platform, ecological filler filled in the acrylic square groove and a micro diaphragm water pump installed between the acrylic square groove and the water moving platform, and the micro diaphragm water pump is suitable for pumping water from the lake into the acrylic square groove. The water is filtered by the ecological filler and is pumped back to the lake body again; the control system is electrically connected with the power propeller and the self-cruise module assembly. According to the method, heavy metal ions in the water body can be effectively removed, and the efficiency can be remarkably improved while the cost is reduced.

An unmanned ocean vehicle apparatus having a hull, solar array, hydrofoil, and electric thruster is operable on a surface of a body of water to travel from one point to another with long range capabilities. The unmanned ocean vehicle can further be placed in a more compact configuration, incorporating a mechanism to alternate between operational mode and collapsed storage mode to facilitate physical storage or shipment of the vehicle. Methods are described for optimizing travel and determining favorable movements of the unmanned ocean vehicle by calculating current and predicted conditions at certain waypoints using a combination of a sensor, a computer, and a control system. The physical support of hydrofoils, a drag reducing system, capsize-prevention technique, and a three-dimensional arrangement of solar panels provides efficient power management, optimal route strategy, and sustainability of the vehicle's high speeds in wildly varying ocean conditions.

This invention introduces a kinetic energy recovery wind-wave integrated system for offshore wind power generation. The system consists of a semi-submersible platform equipped with a fan and an internal wave energy device. The device includes a shell housing a Power Take-Off (PTO) system, featuring a permanent magnet synchronous linear motor and an active controller. The motor's stator is fixed inside the shell, while its mover is connected to a counterweight block outside the stator, linked to the shell's top via a spring. Limiters are installed at both ends of the shell to restrict the counterweight block's movement. This system utilizes the wave energy device to absorb kinetic energy, which otherwise affects wind turbine stability, and converts it into usable electrical energy via the PTO system. This enhances the stability and safety of offshore wind turbine power generation.

The invention relates to the technical field of ship construction, in particular to a container ship wind shield and a ship. The container ship wind shield is of a curved-plate-shaped structure surrounding a bow of a ship body, a container on the ship body is arranged behind the container ship wind shield, the container ship wind shield comprises a wind guiding part, the width of the wind guiding part is gradually increased from the front to the rear of the ship body, and the width of the wind guiding part is larger than that of the ship body. The air guide part gradually inclines towards the direction close to the ship body from bottom to top; the height size of the air guide part is firstly increased and then reduced from the middle to the two sides, so that the top of the air guide part forms a biconvex structure in the vertical direction; or the top of the air guide part is bent towards the direction away from the container and then bent towards the direction close to the container from the middle to the two sides, so that the top of the air guide part is a plane with an M-shaped structure. According to the wind shield, airflow is smoother and is attached to the container, the disturbance range is small, the purpose of reducing wind resistance is achieved, and energy consumption in the ship running process is effectively reduced.

A semi-submersible crane vessel for use in assembling a wind turbine and for installation by means of a crane of the vessel of the assembled wind turbine on a foundation. At an assembly station, the hull of the vessel is provided with a mast-receiving well that is sunk into, or through, the hull, preferably a well that extends into, or through a support column of the hull, which well is configured to receive therein at least a portion of the mast of the wind turbine during an assembly step of the wind turbine. For example, the mast-receiving well has a depth of at least 15 meters, e.g. at least 30 meters, measured from the deck of the deckbox structure.

A hydrofoil board having a hydrofoil and individually controllable flaps configured to be controlled to stabilize the board in a level position even when incurring waves. The flaps are spaced from the hydrofoil to generate a gap, and direct fluid flowing under the hydrofoil through the gap, and over the flaps. The flaps control the pitch and direction of the hydrofoil board when propelled in motion. A processor uses an internal measurement unit (IMU) to obtain orientation and acceleration information of the hydrofoil board. A global positioning system (GPS) unit is also used as an additional speed and location sensor. The processor combines IMU data with a user / rider's input, such as selected speed and direction via handheld wireless controller, and individually controls the flap motors to position the flaps, and the propulsion motor to set speed. In one example, the controller is configured to bring the hydrofoil board to a complete and stabile stop.

The utility model relates to the technical field of marine culture harvesting equipment, in particular to a double-body culture harvesting platform which comprises a left ship body, a right ship body, a connecting plate, a portal frame and a rope guide mechanism, the left ship body and the right ship body are distributed side by side, one end of the left ship body is connected with one end of the right ship body through the connecting plate, and the other end of the left ship body is connected with the portal frame through the rope guide mechanism. The other side between the left ship body and the right ship body is open and connected through a portal frame, a rope guiding mechanism for guiding a rope is installed on the portal frame, one end of the rope enters from one side of the rope guiding mechanism, and the other end of the rope extends out from the other side of the rope guiding mechanism and extends out from the lower portion of a connecting plate between the left ship body and the right ship body; the device has the advantages of simple structure, convenience in use, high stability, high culture harvesting efficiency and the like.

The invention refers to a floating offshore structure incorporating a water motion stabilization system. The structure comprises: a platform, at least one floater joined to the platform, each floater having at least an internal chamber and having a closed upper end and an open bottom end, and wherein the floaters are positioned such that the open bottom end is submerged when the offshore structure is deployed on the sea, so that a water column can oscillate inside the chamber of each floater. Each floater has a valve arranged such that in its open position it communicates an upper part of the chamber of the respective floater with the ambient air, and in its closed position it serves for controlling the volume of air enclosed within the chamber of each floater. The invention improves water motion dampening effect, so as to improve stabilization particularly of Floating Offshore Wind Turbine Platforms, thereby, improving the efficiency of wind turbines and enlarging their operation range.

The invention relates to a preparation method of a'microstructure-liquid-like surface 'underwater drag-reduction, noise-reduction and antifouling multifunctional composite coating, and belongs to the field of underwater equipment. The multifunctional composite coating provided by the invention comprises an anti-drag microstructure arranged on the surface of a substrate and a liquid-like surface arranged on the surface of the anti-drag microstructure, and the liquid-like surface retains the original morphology of the anti-drag microstructure. According to the micro-structure, the distance between the wall face and a turbulent vortex can be increased, the frequency and strength of a flow vortex pair can be restrained, and resistance reduction is achieved; and on the liquid-like surface, resistance reduction can be achieved by enabling fluid to generate wall face slippage and reducing the speed gradient of the fluid on the boundary. The two mechanisms of action are different but do not interfere with each other, and a better drag reduction effect can be achieved through the synergistic effect. Meanwhile, the composite coating can achieve the noise reduction effect by reducing the turbulence intensity of the wall face. In addition, the liquid-like surface can resist adhesion of marine organisms, the integrity of the microstructure is guaranteed, and therefore the long-term drag reduction effect is achieved.

A gate system for a pontoon boat is provided. The gate system may comprise a gate, a guide, and a guide interface member.

The invention relates to the technical field of fleet navigation state management, and discloses an intelligent combined fleet navigation state management method and system, and the method comprises the following steps: S101, collecting ship feature data and environment feature data of P ships in a pure electric unmanned fleet in the navigation process, and representing the data through a first feature sequence; s102, preprocessing the first feature sequence to obtain a second feature sequence; s103, constructing a fleet collaborative topological graph according to the second feature sequence, constructing a fleet energy consumption prediction model according to the fleet collaborative topological graph, and outputting the power consumption of P ships in the fleet in a second preset time period; and S104, optimizing the control parameter combination based on an improved genetic algorithm to obtain an optimal control parameter combination. According to the invention, through dynamic collaborative optimization, intelligent management of battery endurance and carbon emission, and deep fusion of formation optimization and energy-saving design, the navigation efficiency, green development capability and task execution effect of the unmanned fleet are comprehensively improved.

Disclosed herein is a buoyant structure for offshore deployment. The buoyant structure comprises a first deck having a first channel through the first deck; a second deck having a second channel through the second deck, wherein the first deck and second deck are coupled to each other and arranged spaced apart from each other; and a plurality of floatable substructures coupled to and around at least one of the first deck and the second deck, the plurality of floatable substructures arranged spaced apart from one another, wherein the first channel and the second channel are aligned to receive at least a portion of a tower of a wind turbine.

Disclosed is a method of reducing drag on the hull of the vessel by creating a Coanda flow on the hull by jetting a fluid onto the hull or surface continuous with hull at a location above the waterline in the vessel. The Coanda flow extends below the waterline, entraining air below the waterline and adjacent to the hull. The Coanda flows generated by the free jets impacting targets embedded in wear plates can be created in any direction relative to the vessel forward direction. An air cavity is also created by the jetted fluid. A system for reducing drag is also disclosed, wherein the system includes a pump in fluid communication with a source of fluid, power source connected to the pump and at least one nozzle positioned above the waterline of the vessel and oriented towards the hull of the vessel so as to jet the fluid thereon.

The present invention relates to semi-submersible vehicle useful in bad weather operation comprising: 1- Two buoyant tubes (2) with equipment for balancing ballast water and moving the vessel, including electronic equipment; 2 - Two solid ballast tubes (3), which are the heavy keel of the vehicle attached to each one of the hull (2), 3 - Horizontal and vertical interconnecting struts (5); 4 - Two payload capsules (1) which are detachable; 5 - Upper deck (6) including (A) navigation lights, (B) sensors, (C) floaters, (D) tanks vent heads and (E) engine intake and exhaust ports; and 6 - Small water plane area upper structure (4), linking the deck (6), buoyant tubes (2), transfer intake, exhaust (4A), and vent lines, as well as power and data lines.

This invention introduces a unique two-piece nozzle used to provide air to the hull bottom of a ship, reducing the drag of water friction while in motion. The unique base assembly will mount flush in the bottom portion of a hull of a ship, creating no additional drag when closed. The unique interchangeable and modular nozzle design will allow for maintenance and or development of various designs in the water, without requiring a drydock visit. A flap portion of the nozzle insert will open when air is supplied, releasing small air bubbles to a ship's hull. The flap portion of the nozzle insert may incorporate various materials and passive closing schemes to adjust the air plastron. The present invention creates and maintains an air curtain, called plastron, delivering air underneath a ship hull through an array of nozzles.

The invention discloses a cultivation work ship with a ship body capable of being opened and closed, and relates to the technical field of cultivation work ships, the cultivation work ship comprises the ship body, a plurality of permeable nettings and a sealing assembly, a containing cavity is formed in the ship body, openings communicated with the containing cavity are formed in the two sides of the ship body, and the multiple permeable nettings divide the containing cavity into a plurality of cultivation areas; the sealing assembly is rotatably mounted to the hull for opening or sealing the opening. The water-permeable netting is arranged to divide the containing cavity into a plurality of culture areas, so that different types of fishes can be cultured, frequent water change between seawater and the plurality of culture areas can be achieved through the opening in the culture mode, the culture effect is guaranteed, automatic water change is achieved through the seawater, and the culture efficiency is improved. The breeding cost is reduced; the opening is sealed by driving the sealing assembly to rotate, so that the integrity of the appearance of the ship body is improved, the sailing resistance can be reduced, and the sailing speed is increased.

The invention discloses a hydrofoil ship and a hydrofoil ship control method.The hydrofoil ship comprises a ship body, a hydrofoil mechanism and a propelling mechanism, the propelling mechanism is used for providing power for the ship body, the hydrofoil mechanism further comprises a supporting column, a telescopic driving part arranged above the supporting column, a main wing and a flap, and the main wing and the flap are arranged below the supporting column; the main wing is fixedly connected with the supporting column and symmetrically extends out of the two sides of the supporting column, the telescopic driving part is in transmission connection with the flap, one side of the flap is hinged to the main wing, and the telescopic driving part can drive the flap to swing around the main wing so as to change the posture and / or position of the ship body. The hydrofoil ship control method is used for controlling the hydrofoil ship. By means of the method, the ship posture can be rapidly adjusted, and the ship body can be rapidly balanced.

In crafts that have a hydrofoil, a locking mechanism can be used to lock the hydrofoil in place (e.g., in a retracted position or in a deployed position). However, the forces experienced by the hydrofoil, especially when in the deployed position, can cause strain on the locking mechanism, which can lead to jamming or failure. The embodiments presented herein provide a locking mechanism that can be used to avoid this problem. In one embodiment, the locking mechanism uses a pin that is movable along a single axis for engaging / disengaging a. portion in a catch that is shaped to receive the pin. In another embodiment, a rear strut of the craft is rotatable, allowing the rear strut to both support the rear hydrofoil and act as a. rudder of the craft when in water.

A system for removing contaminants from a body of water includes a vessel including floating contaminant cleanup and recovery equipment, that includes an intake port capable of removing contaminants from a body of water and transporting same to the vessel. The system may include a conveyor capable of removing contaminants from the body of water and transferring same to the vessel. The system also including lengths of a type of towable contaminant containment booms, connected to each side of the vessel. The system may include equipment having extendable, angularly positionable armatures, or telescopic cranes or tow boats, capable of positioning and maintaining the lengths of contaminant containment booms that are also connected to end portions of same, and extended outward in front of and off to each side of the vessel to gather and channel floating contaminants back to the intake port of the floating contaminant cleanup and recovery equipment.

Disclosed is a floating platform integrating wave attenuation with marine energy power generation and a working method thereof, the platform includes a breakwater, a tuned damping wave energy converter, and an offshore floating wind turbine. The breakwater includes double-cylindrical-boxes and connecting bulkheads, and a moon pool area is formed in a middle of the breakwater; the offshore floating wind turbine and the tuned damping wave energy converter are both connected to the breakwater through a connecting rod. A circular groove is formed on an inner side of each of the connecting bulkheads of the breakwater. The breakwater provides the floating base and power generation environment for the offshore floating wind turbine and the tuned damping wave energy converter, and a plurality of the tuned damping wave energy converters can be disposed, and are evenly distributed beneath the offshore floating wind turbine.

The invention provides a water spaceship main hull with small head water resistance, tail water assisting and a rudder braking function. The water spaceship main hull is composed of a square main cabin section with the length of a, the width of b and the depth of c, a main hull head with the top view sharp and round and the side view round corner, a main hull tail with the top view sharp and round and the side view triangular rear view inverted square groove, the brake rudder and a water tumbler drain hole. The device has the effects of energy conservation, safety and high speed. The appearance of the main ship body has a unified resistance-reducing and energy-saving safety standard and does not follow the meaning of a designer any more.

The invention provides a gas anti-drag jet device and a ship. The gas anti-drag jet device comprises a gas supply assembly. One end of the flow guide pipe is connected with the air supply assembly, and the other end of the flow guide pipe is configured to be communicated with a through hole in a ship bottom flat plate; and the flow guide cover is configured to cover the through hole from the side, away from the flow guide pipe, of the ship bottom flat plate, so that a narrow slit is formed by the flow guide cover and the ship bottom flat plate, and the narrow slit is used for allowing gas to be sprayed out and enabling the gas to flow along the ship bottom flat plate. The gas anti-drag air injection device occupies a small area of a flat plate at the bottom of the ship, is easy to arrange, and can reduce the adverse effect of the gas anti-drag air injection device on the performance and structure of the ship body.

Semi-submersible float for offshore wind turbine The invention relates to a semi-submersible float (2) for offshore wind turbine, comprising at least three vertical columns (4, 6), one of which is intended to receive a wind turbine mast, the vertical columns being connected to each other by pontoons (8) each formed by a plurality of flat panels (81 to 84) which are assembled together at edges (10) extending longitudinally between two columns, the edges of the pontoons being rounded and connected at each of their longitudinal ends to a column by means of a transition piece (12). Figure for abstract: Fig. 1.

The invention provides a water spaceship main hull with small head water resistance, tail water assisting and a rudder braking function. The water spaceship main hull is composed of a square main cabin section with the length of a, the width of b and the depth of c, a main hull head with the top view sharp and round and the side view round corner, a main hull tail with the top view sharp and round and the side view triangular rear view inverted square groove, the brake rudder and a water tumbler drain hole. The device has the effects of energy conservation, safety and high speed. The appearance of the main ship body has a unified resistance-reducing and energy-saving safety standard and does not follow the meaning of a designer any more.

A morphing airfoil includes a dynamic flexible skin system that is capable of carrying high level aerodynamic (or fluid) pressure loads over a structural surface. The structural surface can morph and bend in response to control inputs to change a lift force without separate movable control surfaces. A plurality of standoff mounts are attached to an inner surface of anisotropic skin. The standoff mounts include through apertures for receiving a flexible stringer. The anisotropic skin is attached to underlying structure through the flexible stringers. The flexible stringers interface with actuated position control ribs and passive compliant support ribs. A control system causes the underlying support structure to move to a desired location which in turn causes the skin to bend and / or flex without exceeding a stress threshold and thus vary the lift and drag distributions along a span of the airfoil without separate control surfaces.

A novel and advantageous chassis for a pontoon boat is provided. The chassis includes two outer tubes and a center tube. The outer tubes include lifting strakes on a surface facing the center tube. The center tube has two side walls and a bottom surface with one or more chines provided along the bottom surface. The bottom surface may have be V-shaped or may have a flat central surface. Riding surfaces may be provided between the outermost chines and the side walls of the center tube.