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1137results about "Hydrodynamic/hydrostatic features" patented technology
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Underwater multi-mode mobile robot equipped with flexible bionic gripper
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.
Owner:LANZHOU JIAOTONG UNIV
Inertial hydrodynamic pump and wave engine
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.
Owner:LONE GULL HOLDINGS LTD
System and method for reducing drag on the hull of a vessel
PendingUS20260015064A1Watercraft hull designHydrodynamic/hydrostatic featuresClassical mechanicsAir cavity
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.
Owner:KARMOUS KHALED M
Internal combustion engine compressed air and electric supercharger ship bubble anti-drag air supply control system
PendingCN120902871AInternal combustion piston enginesExhaust apparatusAir compressionVapor–liquid separator
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.
Owner:HARBIN ENG UNIV
Gondola for high-speed multibeam echosounder surveying by semi-displacement or planing hull vessels
PendingUS20250319952A1Navigational aid arrangementsHydrodynamic/hydrostatic featuresStructural engineeringHull
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.
Owner:FNV IP BV
Human powered hydrofoil vehicle
PendingUS20250340269A1Rotary propellersMuscle power acting propulsive elementsControl theoryMechanical engineering
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.
Owner:TIGERFISH FOILS LTD
System and method for enhanced marine vessel efficiency using integrated hull optimizations
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.
Owner:AIRGLIDE AI INC
Multiple chine pontoon boat
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.
Owner:POLARIS IND INC
Floating body for offshore wind turbine
A floating body for an offshore wind turbine includes: one first column; two second columns; two lower hulls connecting the first column to each of the second columns; and a beam member connecting the two lower hulls. The beam member is disposed within a height range between an upper surface and a lower surface of each lower hull.
Owner:MITSUBISHI SHIPBUILDING CO LTD
Floating platform stabilization system and method of installation
A floating platform system can be provided to facilitate mounting of and for supporting a structure on a floating platform. For example, the floating platform system can include the floating platform. The floating platform system can also include a ballast receiving volume inside the floating platform for receiving a ballasting liquid. The floating platform system can further include a mounting surface on the floating platform for mounting a structure. Additionally, the floating platform can include a downwardly-oriented stabbing guide.
Owner:TECHNIP ENERGIES FRANCE SAS
Mounting plate assembly and system
An assembly adapted for mounting a water engagement device to a marine vessel may include a transom plate, an actuator plate and a clamping assembly. The transom plate may be adapted to be connected to the marine vessel. The actuator plate may include a flange that is disposed under a bottom side of the transom plate. The clamping assembly is configured to engage the transom plate and the actuator plate to connect the actuator plate to the transom plate.
Owner:SEAKEEPER INC
A self-adapting cleaning device for a ship lifting fin
ActiveCN120327717BVessel cleaningVessel movement reduction by foilsMarine engineeringStructural engineering
The application discloses a kind of ship lifting fin plate self-adapting cleaning device, belong to ship equipment technical field, including fixed plate, the fixed plate is connected with fin plate by suspension assembly, the fin plate outside is provided with deep well, the deep well side wall is provided with cleaning assembly, the cleaning assembly includes the slide rail mounting bracket of the deep well side wall, the slide rail mounting bracket is installed with slide rail, the slide rail is installed with push rod, the push rod is connected with sanding wheel, the whole device is provided with control component.The application adopts the above-mentioned ship lifting fin plate self-adapting cleaning device, push rod is adjusted sanding wheel and fin plate adhesion degree by spring and hydraulic equipment, symmetrically arranged sanding wheel is combined with slide rail and can fully cover fin plate surface, improve cleaning efficiency;Real-time monitoring data is obtained by torque sensor and flexible pressure sensing array, and the cleaning strength is intelligently adjusted by using fuzzy PID algorithm, which can ensure the cleaning effect and avoid damaging the anticorrosive coating of fin plate.
Owner:CHINA THREE GORGES UNIV
Underwater vehicle cavitation resistance reduction optimization method and system based on AI deep reinforcement learning
ActiveCN121859763AImplement dynamic adaptive optimizationSolve the problem of difficulty in adapting to actual underwater operating scenariosGeometric CADDesign optimisation/simulationAdaptive optimizationSimulation
The invention provides an underwater vehicle cavitation resistance reduction optimization method and system based on AI deep reinforcement learning, and belongs to the technical field of deep reinforcement learning, and the method comprises the steps: determining a first resistance reduction scheme according to a preset path, morphological parameters and a deep reinforcement learning model, and carrying out the correction through combining with an actual driving path to obtain a second scheme, image sensors are arranged according to the morphological parameters, images are collected and analyzed to obtain real-time cavitation resistance reduction parameters, and the multiple parameters and the second scheme are fused to generate an optimization scheme. Dynamic self-adaptive optimization of the drag reduction scheme is achieved, and the drag reduction efficiency and the navigation stability are improved.
Owner:BEI JING NORMAL UNIV HONG KONG BAPTIST UNIV UNITED INT COLLEGE
Ventilation drag reduction device and marine ventilation drag reduction system including same
ActiveUS12589833B2Watercraft hull designHydrodynamic/hydrostatic featuresStructural engineeringHigh pressure gas
A ventilation drag reduction device includes a main housing, a first rectification assembly, a second rectification assembly, and a flow isolating assembly; the main housing is composed of a first segment, a second segment, a third segment, and a fourth segment; the first rectification assembly is composed of first rectification plates; the second rectification assembly is composed of at least one second rectification plate; the flow isolating assembly is arranged in a cavity of the third segment; the fourth segment is configured as an outlet end. On the premise that the total construction cost is not obviously increased, high-pressure gas is rectified in a cavity of the main housing, so that the turbidity of the high-pressure gas is reduced, and a stable insulating gas layer is formed at the bottom of a hull; in addition, the present invention further discloses a marine ventilation drag reduction system.
Owner:JIANGSU UNIV OF SCI & TECH +2
Systems and methods for high-speed cargo transport
A vessel for transporting cargo by water comprises one or more propulsion devices with at least one air-breathing engine from the one or more propulsion devices disposed entirely above a surface of the water in a high-speed mode of operation. The least one air-breathing engine is configured to bleed airflow into a fluid circuit. The fluid circuit routes the bleed airflow to one or more fluid outlets disposed entirely below the surface of the water in the high-speed mode of operation. At least some of the one or more fluid outlets release the bleed airflow in the high-speed mode of operation generate a boundary layer along at least a portion of a hull of the vessel to reduce a skin friction drag thereof.
Owner:ARCHIMEDES FREIGHT INC
Providing Feedback on a Mode Transition of a Craft
A craft is provided with a lever that can control the power / speed of the craft and semi-automatically transition the craft in various modes of operation. This makes control of the craft somewhat similar to control of a boat, thereby bringing a maritime flight control experience to a wing-in-ground effect vehicles, hydrofoiling vessels, seagliders, and seaplanes. Further, various audio, visual, and / or haptic devices in the cockpit can provide alerts / feedback to the operator on the use of the lever and mode transitions.
Owner:REGENT CRAFT INC
Modular Electric Hydrofoil Watercraft for Rapid Assembly and Disassembly
The electric hydrofoil watercraft according to the invention provides detachable and hermetic electrical connection via contact pins for cables providing power to underwater propulsion means between above-water platform and one side of the mast and between the fuselage of the hydrofoil and the other side of the mast.
Owner:CPD LTD
Ship with telescopic elevator structure
The utility model belongs to the technical field of hydrofoils, and particularly relates to a ship with a telescopic elevator structure, which comprises a ship body, a bow, a stern, a buoyancy structure, a first arc-shaped strut and a second arc-shaped strut. The buoyant structure includes a first buoyant volume disposed near the bow and a second buoyant volume located between the first buoyant volume and the stern. The present application provides a vessel with a retractable elevator structure, a first buoyancy volume pivotably coupled to a second buoyancy volume along a radial axis to achieve precise directional control, first and second arcuate struts having proximal ends movably connected to the buoyancy structure and distal ends supporting a hydrofoil lift surface, the first arcuate strut and the second arcuate strut expand and contract in an arcuate manner along an external common radial axis, allowing seamless transition between a compact storage configuration and an expanded operating state, improving ship maneuverability, portability and safety.
Owner:DONGGUAN MEDICA TECH CO LTD
Sponson device and jet propelled watercraft
A sponson device attachable to a watercraft body of a jet propelled watercraft includes a bow sponson located forward of a center of gravity of the jet propelled watercraft. The bow sponson protrudes from the watercraft body in a right-and-left direction, and is movable to a first position and a second position to adjust a trim of the watercraft body during turning of the jet propelled watercraft.
Owner:YAMAHA MOTOR CO LTD
Unmanned aerial vehicle taking-off and landing ship and application method thereof
Owner:HUBEI CENT CHINA TECH DEV OF ELECTRIC POWER +1
Operation type water-air cross-domain rope-driven bionic robot and using method thereof
PendingCN121061940AConvertible aircraftsConvertible vehiclesWorking environmentStructural engineering
The invention discloses an operation type water-air cross-domain rope-driven bionic robot and a using method thereof. The robot comprises an aircraft body, a rotor wing arm installed on the aircraft body, an underwater propelling structure and a mechanical arm assembly installed at the bottom of the aircraft body. The rotorcraft arm comprises a rotating device and a rotor assembly, and the rotating device is used for driving the rotor assembly to rotate; the mechanical arm assembly comprises a driving device, a mechanical arm, a driving rope and a mechanical claw installed at the tail end of the mechanical arm, and the driving device is installed at the bottom of the aircraft body and used for driving the tensioning degree of the driving rope; the mechanical arm comprises a plurality of joint sections, and the overall shape of the mechanical arm is changed by adjusting the tensioning degree of the driving rope. According to the mechanical arm, the design of the multiple joint sections is adopted, a flexible bendable structure is formed, the mechanical arm is controlled to be bent and deformed on multiple degrees of freedom through the driving rope, the overall bending flexibility of the mechanical arm is improved, and the mechanical arm can adapt to the complex or narrow working environment.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Floating wind turbine platform
The disclosure relates to a floating wind turbine platform, comprising: a substantially triangular hull configurable to support a wind turbine tower; the hull comprising a first, second and third column, the first, second and third columns being connected by a first, second and third pontoon member, as well as by a first, second and third connector.
Owner:PRINCIPLE POWER INC
Offshore wind turbine systems and processes for installing same
ActiveUS12571373B2Wind motor assemblyWind motor supports/mountsMarine engineeringClassical mechanics
Offshore wind turbine systems and processes for installing same. The system can include a wind turbine generator that can include a plurality of blades connected thereto. The system can also include a first support arm and a second support arm each having a first end and a second end. The system can also include a support structure that can be configured to float on a surface of a body of water that can include first, second, and third columns. The first end of the first support arm and the first end of the second support arm can each support the wind turbine generator at an elevation above the support structure. The second end of the first support arm can be connected to and supported by the first column. The second end of the second support arm can be connected to and supported by the second column.
Owner:SOFEC INC
Self-adaptive chemical gas production underwater drag reduction layer and preparation method thereof
The invention belongs to the technical field of ocean engineering drag reduction, and relates to a self-adaptive chemical gas production underwater drag reduction layer and a preparation method thereof.The surface of an aircraft is regarded as a gas production place and transformed into an intelligent interface with sensing and feedback capabilities, inert gas generated by reaction of reactants is detained and utilized in situ through microstructure design, and the self-adaptive chemical gas production underwater drag reduction layer is obtained. The independent micro chamber structure avoids diffusion of local failure, the macroscopic flow guide structure relieves the problem of non-uniform gas film distribution, external energy input is not needed, the chemical reaction rate is reversely and adaptively regulated and controlled based on the physical effect generated by gas retention, and therefore a closed-loop passive self-adaptive resistance reduction film layer is formed. Reaction byproducts are environment-friendly water-soluble sodium chloride and water and are removed in a pulse type reaction mode of high-speed water flow scouring and gas retention, so that the risk of permanent blockage is reduced, safety and environment friendliness are achieved, the energy utilization efficiency is high, meaningless waste of gas is avoided, and the cruising ability of fuel is equivalently and greatly improved.
Owner:CHINA SHIPBUILDING INDUSTRY CORPORATION NO725 RESEARCH INSTITUTE
System for handling marine or underwater drones by floating pontoon with removable drone interface module, adapted ship
The invention relates to a system (1, 2) (1, 4) for handling marine (3) or underwater (5) drones, the system (1, 2) (1, 4) comprising a drone interface module (2, 4) and a floating pontoon (1) with two hulls (11) and an arch (10), the pontoon (1) is catamaran-shaped and delimits a downflooded reception space (17), the arch (10) comprises at least one device (12) for attachment to a winch cable, the pontoon (1) comprises devices (13) for detachable attachment to a drone interface module (2, 4) detachably and interchangeably installed in the receiving space (17), the drone interface modules (2, 4) forming an at least partially flooded docking area (23, 42) for the drone (3, 5), the drone interface modules (2, 4) have a lower portion (22, 43) configured to rest stably on a flat surface after the drone interface module (2, 4) has been removed from the pontoon (1).
Owner:EXAIL
Hydrofoil equipped seaglider takeoff
A craft comprises 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.
Owner:REGENT CRAFT INC
Electric water vessel
PendingUS20250346337A1Propulsion power plantsVessel movement reduction by mass displacementPower modeLow voltage
The disclosed invention relates to an electrically powered watercraft that may include a dynamic weight shifting system for reducing power requirements in operation, an electrical system that provides a first low voltage electrical power mode when stationary and a second high voltage electrical power mode when in motion for increased power and range, and an omnidirectional console for control of the watercraft. The electrical system increases power to the electric motors when the watercraft is in gear, while reducing the power level when the watercraft is not in motion. The omnidirectional control console for operation and control of the watercraft may be responsive to the orientation of the console with respect to the watercraft. This construction allows easy docking and close operation to other watercraft and obstructions.
Owner:VOLARE BOATS LLC
Hydrofoil Takeoff and Landing with Multiple Hydrofoils
A craft comprises at least one hull, at least one wing configured to generate upwards acro lift as air flows past the at least one wing to facilitate wing-borne flight of the craft, at least one retractable hydrofoil configured to generate upwards hydrofoil lift during a first mode of operation as water flows past the at least one hydrofoil to facilitate hydrofoil-borne movement of the craft through the water, and a control system that comprises data storage having instruction code stored thereon that causes the control system to during a takeoff operation when the craft is accelerating through the water and is supported by the at least one hydrofoil, control the at least one hydrofoil to generate downwards hydrofoil lift that maintains the at least one hydrofoil submerged at a predetermined hydrofoil depth threshold below the water surface; and when the craft reaches a takeoff condition, cause the least one retractable hydrofoil to release the craft from the water to facilitate wing-borne flight of the craft.
Owner:REGENT CRAFT INC
Catamaran
Owner:HANGZHOU PEISHENG BOAT CO LTD