2234results about "Hydrodynamic/hydrostatic features" patented technology

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.

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.

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 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.

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.

The invention relates to a catamaran hull system to improve performance characteristics. The catamaran hull system comprises a hull having a bow and a stern, at least one transverse step, and a posi-flow inductor system. The posi-flow inductor system includes an interior inductor channel extending vertically up the hull and terminating above a waterline when the hull is at rest, and a posi-flow cover plate attached to the hull and covering the interior inductor channel to form a posi-flow duct. This catamaran hull system provides a solution that reduces suction, improves air flow to the transverse step, and enhances overall hull efficiency. Overall, it offers improved performance, stability, and handling characteristics for catamaran vessels.

A lift-propulsion assembly and a watercraft. The watercraft includes a buoyant body having upper and lower surfaces on respective upper and lower sides thereof; a lift-propulsion system including a mast connected to the buoyant body, the mast having a proximal end and a distal end, the mast extending from the lower side of the buoyant body; and the lift-propulsion assembly. The assembly includes an assembly frame connected to the distal end of the mast; a propulsion unit for providing thrust to the watercraft, the propulsion unit being connected to the assembly frame; a hydrofoil for providing lift to the watercraft, the hydrofoil being selectively connected to the assembly frame; and a manually-operable attachment system connecting the hydrofoil to the assembly frame.

The invention discloses an underwater multi-mode mobile robot equipped with a flexible bionic gripper, which integrates three operation modes of propeller propulsion, six-foot crawling and target object grabbing, and realizes'movement-attachment-operation 'integrated collaboration. The robot main body adopts a five-thruster vector layout and has a five-degree-of-freedom motion capability; and six groups of three-degree-of-freedom mechanical feet and two groups of three-degree-of-freedom mechanical arms are arranged outside, and a cruising mode, a crawling mode or a grabbing mode can be automatically switched according to tasks. A coordination dual-network hydrogel bionic sucker and a flexible gripper are integrated at the foot end and the arm end, and controllable adsorption and desorption are achieved through a diaphragm pump. The control system generates a rhythm signal based on the central mode generator, and coordinates multi-module actions of paddles, legs and arms in combination with inverse kinematics solution. The robot is suitable for tasks such as wide water area cruising, complex terrain exploration, environment maintenance and seabed sampling, has high maneuverability and high integration degree, and provides an innovative platform for underwater fine operation.

A unitary hermetically sealed device is disclosed for providing self-contained electric propulsion drive power to a motor boat or sailboat, where the entire propulsion system is contained in a separable pressurized hermetic enclosure attached to the underside of the vessel and also acts as a keel of the vessel, and which simplifies production, provides improved safety from high voltages, and prevents drive system maintenance or repair when the vessel is located in the water. The rigid hermetically sealed device functions as a skid-plate to avoid damage to the softer typically fiberglass hull when running the vessel aground or when running up onto or off of the beach or onto or off a trailer.

A buoyant hydrodynamic pump is disclosed that can float on a surface of a body of water. Wave-driven oscillations result in periodic upward ejections of water inside a downwardly projecting tube that can be collected in a reservoir. Water within such a reservoir may return to the body of water via a turbine, thereby generating electrical power, or the device's pumping action can be used for other purposes such as water circulation, propulsion, dissolved minerals extraction, or cloud seeding.

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. The fluid is jetted onto the hull or surface continuous with the hull at a location above or below the waterline of the vessel. The fluid is jetted from within a habitat positioned at least partially below the waterline, the habitat being vented to atmosphere. The habitat has an open end below the waterline. The Coanda flow extends entrains air below the waterline and adjacent to the hull. An air cavity or sheet is created by the jetted fluid. A system for reducing drag is also disclosed.

The invention relates to the technical field of power energy and ship resistance reduction, and discloses an internal combustion engine compressed air and electric supercharger ship bubble resistance reduction air supply control system which comprises an internal combustion engine set, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger, an electric supercharger and an electric supercharger, and the internal combustion engine set serves as a power source of the whole system and generates excessive compressed air by delaying the closing moment of an intake valve during conventional operation; the gas-liquid separator is arranged on one side of the internal combustion engine set and used for separating liquid impurities of the compressed air and discharging the liquid impurities regularly; the filter is arranged on the side, away from the internal combustion engine set, of the gas-liquid separator and used for further filtering the compressed air; the first gas storage tank is arranged on the side, away from the gas-liquid separator, of the filter. Compressed air of the internal combustion engine and exhaust gas of the internal combustion engine are used for replacing traditional independent air compression equipment, the effect of reducing the requirement for additional compression equipment is achieved, the problem that a traditional ship bubble drag reduction air supply system is high in energy consumption is solved, the energy utilization efficiency of ship operation is improved, and the overall energy consumption cost is reduced.

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

A hydrofoil board having a hydrofoil configured to be automatically controlled to stabilize the board in a level position even when incurring waves. The hydrofoil includes a pair of individually controllable flaps that control the pitch and direction of the hydrofoil board when propelled in motion. A processor uses an inertial 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.

Unlocking insights from Geo-Data, the present invention relates to improvements in sustainability and environmental developments: together we create a safe and livable world. Described are systems and techniques for high-speed multibeam echosounder (MBES) surveying using a gondola attached to a semi-displacement or planing hull vessel. A housing encloses a multi-head MBES transducer array, with a nose fairing extending from a maximum width of the housing and a tail fairing extending from a minimum width of the housing. A hydrofoil strut segment has first and second hydrofoil surfaces orthogonal to the housing, and includes at a first distal end a coupling for flush attachment to an upper surface of the housing and at a second distal end a coupler portion for attachment to the semi-displacement or planing hull vessel. The first and second hydrofoil surfaces can generate opposing hydrodynamic forces during high-speed MBES surveying by the semi-displacement or planing hull vessel.

A hydrofoil vehicle comprises a frame and at least one foil. The vehicle comprises a moveable control surface configured to control a pitch of the vehicle, in use. A locking mechanism is provided for restricting movement of the control surface when the vehicle is not foiling, for example during launching. In examples, the locking mechanism activates automatically when the hydrofoil vehicle is not foiling. In examples, the vehicle is human powered.

Methods and systems are provided for transient fluidic coupling via reversibly couplable conduits. In one example, a method includes directing a conduit assembly to a receiving port by releasing one or more fluid streams from the conduit assembly. The method may further include fluidly coupling an internal passage of the conduit assembly to the receiving port. The internal passage may extend from the conduit assembly and along a conduit between a pair of free-floating bodies, such as between a wave engine and a tanker ship, so as to exchange one or more fluids, such as an electrolysis reactant and an electrolysis product. The fluidic coupling may be reversible, in that the conduit assembly may be detached from the receiving port to sever the fluidic coupling. In certain examples, the detaching may be actuated by releasing one or more additional fluid streams from the conduit assembly.

The invention relates to a system and apparatus to improve performance characteristics of catamaran hulls. A catamaran hull comprises two sponsons, each sponson having an inner chine, and at least one chine extension attached to the inner chine of at least one sponson. The chine extension extends into a tunnel between the two sponsons and is angled downward from a horizontal plane. This system and apparatus provide a solution that generates lift by increasing the surface area of the chine and allows the catamaran to lean into turns rather than outward. Overall, it offers improved stability, reduced drag, and enhanced maneuverability for catamaran boats, particularly at higher speeds and during turning maneuvers.

A system and method for enhancing marine vessel efficiency through integrated hull optimizations is disclosed. The system includes automated bow thruster covers that reduce hull drag and condition water flow, coupled with strategically positioned air lubrication nozzles that create and maintain an air layer under the vessel. The bow thruster covers may be configured as circular doors or parallel panels, optionally incorporating air discharge ports or working in conjunction with dedicated air jets. An intelligent control system optimizes the integrated components using real-time sensor data and computational fluid dynamic analysis. The system modulates air distribution and cover positions based on sea conditions and vessel speed, maintaining optimal efficiency during operation. External surfaces may incorporate superaerophilic structures to enhance air retention and reduce drag. The comprehensive integration of these components provides improved hydrodynamic efficiency while maintaining full bow thruster functionality when required.

A pontoon boat is provided that includes a deck and a plurality of pontoons running longitudinally beneath the deck and providing buoyancy to the pontoon boat. The plurality of pontoons include a multi-chine configuration that increases the stability of the pontoon boat and provides handling characteristics similar to that of a hulled boat. The plurality of pontoons may include two outer pontoons and a third pontoon positioned laterally intermediate the outer pontoons. The third pontoon may include a plurality of chines, and each of the outer pontoons may include at least one chine. At least a portion of each of the at least one chines of the outer pontoons may be positioned vertically below the plurality of chines of the third pontoon. The chines on the third pontoon may extend longitudinally further than each of the at least one chines of the outer pontoons.

The invention provides a gas drag reduction ship. The gas drag reduction ship comprises a ship bottom flat plate; the at least one group of gas anti-drag air injection mechanisms are arranged at the incident flow end of the inner side of the ship bottom flat plate, the number of the gas anti-drag air injection mechanisms in each group is at least one, when the number of the gas anti-drag air injection mechanisms is one, the gas anti-drag air injection mechanisms are arranged on the middle longitudinal section line of the ship bottom flat plate, and when the number of the gas anti-drag air injection mechanisms is multiple, the gas anti-drag air injection mechanisms are arranged on the middle longitudinal section line of the ship bottom flat plate. The multiple gas resistance-reducing air injection mechanisms are symmetrically arranged relative to the middle longitudinal section line of the ship bottom flat plate, and the gas resistance-reducing air injection mechanisms inject air through the through holes in the ship bottom flat plate; each gas resistance-reducing gas injection mechanism at least corresponds to one flow guide cover, the flow guide covers are arranged in the through holes of the ship bottom flat plate and located on the outer side, a narrow slit is formed by the flow guide covers and the ship bottom flat plate, and the narrow slit is used for allowing gas to be injected out and enabling the gas to flow along the ship bottom flat plate. According to the gas resistance reduction ship, the projection of the gas resistance reduction air injection device in the ship width direction does not need to cover the whole ship width, and the whole ship width coverage of a gas layer can be achieved.

A device for modifying a wake of a marine vessel having a hull. The hull extends between a bow and a transom in a longitudinal direction and between sides in a lateral direction perpendicular to the longitudinal direction. The sides each extend between a top and a bottom in a vertical direction that is perpendicular to the longitudinal direction and to the lateral direction. A panel is movably coupled to one of the sides of the hull and movable into and between a stowed position and a deployed position. In the stowed position, the panel extends along the one of the sides of the hull. The panel moves laterally outwardly away from the one of the sides of the hull when moving toward the deployed position. Moving the panel from the stowed position to the deployed position causes the panel to modify the wake of the marine vessel.