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63 results about "Seakeeping" patented technology
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Seakeeping ability or seaworthiness is a measure of how well-suited a watercraft is to conditions when underway. A ship or boat which has good seakeeping ability is said to be very seaworthy and is able to operate effectively even in high sea states.
Stealth single-hull small waterline area hydrofoil unmanned ship and sailing method
The invention discloses a stealth single-hull small waterline area hydrofoil unmanned ship sailing on water and a sailing method. The upper portion of the stealth single-hull small waterline area hydrofoil unmanned ship is provided with a control cabin, the middle portion comprises posts, and the lower portion is a submerged body. The front section of the submerged body is a submerged body bow, the middle section of the submerged body is a submerged body middle part, and the rear section of the submerged body is a submerged body stern. Two water ballast spaces, two power supply cell boxes and a hydrofoil control mechanism are arranged inside the submerged body middle part of a hull. The two water ballast spaces are symmetrically arranged front and back; the two power supply cell boxes symmetrical front and back are arranged between the two water ballast spaces; and the hydrofoil control mechanism is arranged in the center of the space between the two power supply cell boxes. A pair of hydrofoils is symmetrically arranged on the left side and the right side outside the submerged body middle part of the hull. A main motor, a coupler, a main shaft and a tail vane control mechanism are arranged inside the submerged body stern of the hull. A pair of tail vanes is symmetrically arranged on the left side and the right side outside the submerged body stern of the hull. The stealth single-hull small waterline area hydrofoil unmanned ship has excellent seakeeping, speedability and resistance properties, and can achieve the three navigational statuses of body navigation, winging operation and submerge navigation.
Owner:JIANGSU UNIV OF SCI & TECH +1
Landing craft with fixed and retractable azimuthing drives
InactiveUS20020134290A1Improve mobilityImprove airworthinessCargo handling apparatusFerriesSeakeepingProw
A marine vessel used for loading and offloading vehicles and cargo that has both excellent seakeeping and beaching properties. The vessel is provided with azimuthing or steerable thrusters below the waterline at the bow and stern of the ship, with the stern end thrusters being retractable into the hull during beaching operations. Because the vessel is beached "stern first" the bow may be designed with better wave breaking and seakeeping features than are on prior landing craft designs.
Owner:KVAERNER MASA MARINE
Deepwater semi-submersible platform type wind power plant
InactiveCN104806455AReduce vibration intensityImprove seakeepingWind motor combinationsMachines/enginesOcean bottomSeakeeping
The invention discloses a deepwater semi-submersible platform type wind power plant which comprises a plurality of wind turbines, a deepwater semi-submersible platform used for supporting wind turbines and a hanging chain type anchoring mechanism, wherein the anchoring mechanism is used for anchoring the deepwater semi-submersible platform at the bottom of the sea; the deepwater semi-submersible platform comprises a deck platform, a tuned liquid column damper device and a underwater buoyancy tank, wherein the tuned liquid column damper device is arranged inside the deck platform; the deck platform is connected with the underwater buoyancy tank through a stand column; the bottom of the underwater buoyancy tank is connected with the hanging chain type anchoring mechanism. Aiming at the existing wind power plant frequency fixed defect, the seakeeping of the wind motor system in heavy storm wave can be greatly improved, the vibration strength of the wind motor system local component is greatly reduced, and the economical efficiency of the wind motor system is greatly improved.
Owner:SHANGHAI JIAO TONG UNIV
Deformable planing boat with both rapidity and seakeeping ability
InactiveCN107672737AImprove seakeepingVessel designingHydrodynamic/hydrostatic featuresBody shapeSeakeeping
The invention belongs to the field of high-performance ship design and ship moving posture control and particularly relates to a deformable planing boat with both rapidity and the seakeeping ability.The problem that the high speed and the high seakeeping ability cannot be both taken into account in the prior art is solved. The deformable planing boat comprises a main boat body, a first appendage,a second appendage, inverted-U-shaped sliding rails, a bulbous bow and fixed hydrofoils. Each inverted-U-shaped sliding rail comprises vertical guide rails and transverse guide rails. The tail ends of the transverse guide rails are connected with the vertical guide rails, and the vertical guide rails and the transverse guide rails are mutually perpendicular. The first appendage and the second appendage are connected with the ends, close to the water surface, of the vertical guide rails and located on the two sides of the main boat body correspondingly. The bulbous bow is mounted at the bottomof a boat bow of the main boat body, and the fixed hydrofoils are symmetrically mounted on the two sides of the bulbous bow. By changing the boat body shape, the planing boat adapts to the sea conditions of different grades, under the condition that rapidity is not greatly reduced, the good seakeeping ability is obtained, the application range of the planing boat is greatly enlarged, and the taskcarrying-out ability of the planing boat under the severe sea conditions is greatly improved.
Owner:HARBIN ENG UNIV
General Purpose Submarine Having High Speed Surface Capability
InactiveUS20080127878A1Prevent surfaceReduce resistanceAuxillariesVessel ventillation/heating/coolingGeneral purposeSeakeeping
The present invention provides a submarine that is capable of surface operation with its passenger compartment completely or predominately above the waterline. The vessel is capable of high-speed, long-range surface navigation and seakeeping.
Owner:MARION HYPER SUBMERSIBLE POWERBOAT DESIGN
High speed emergency rescue and disaster relief boat capable of upturning and side-swaying hydrofoils
InactiveCN102673729AImprove efficiencyReduce propulsion powerHydrodynamic/hydrostatic featuresSeakeepingEmergency rescue
The invention provides a high speed emergency rescue and disaster relief boat capable of upturning and side-swaying hydrofoils. A front hydrofoil fixed on a vertical fulcrum bar is mounted on the middle portion of a boat bow, the upper end of the fulcrum bar is connected with a rotation shaft which is connected with a worm and gear, the worm drives the rotation shaft to rotate and enables the front hydrofoil mounted on the fulcrum bar to be turned upwards and contracted on the underbelly of the boat; pod-shaped counter rotating oar pulling type hydrofoil combination propulsion devices are on the port side and the starboard side of a stern portion of the boat respectively, the two propulsion devices are respectively connected with side swaying mechanisms, worms and gears of the side swaying mechanisms drive the two propulsion devices to sway upwards symmetrically along arc-shaped guide rails arranged on a stern blanking plate, or sway downwards to the original position, and the swaying angel is instructed by an angle instructor. The high speed emergency rescue and disaster relief boat has the advantages that when the boat sails with hydrofoils, the boat is propelled by counter rotation oars, and efficiency can be as high as more than 70%. When the boat punches the beach, the front hydrofoil is turned upwards, and the back hydrofoil is swayed laterally; and when the boat gets off the beach, the propulsion devices are rotated for 180 degrees to achieve automatic beach getting off. Accordingly, propelling power is reduced greatly, and effects of high speed energy conservation and good seakeeping are achieved.
Owner:无锡东方长风船用推进器有限公司
Multi-navigation-state in-water aircraft
ActiveCN106428421AIncrease thrustIncrease speedVessel superstructuresUnmanned surface vesselsSeakeepingNacelle
The invention provides a multi-navigation-state in-water aircraft. The multi-navigation-state in-water aircraft comprises a main boat body, wherein a streamline superstructure is arranged on the main boat body; a lifting integrated mast is mounted in the superstructure; adjustable hydrofoils are symmetrically mounted on two sides of the front part of the superstructure; electric propulsion devices are symmetrically mounted on two sides of the rear part of the superstructure; an airtight driving control cabin, a fuel oil and battery cabin, a main engine cabin and a floating state adjusting cabin are arranged in the main boat body; a water inlet and a water outlet which communicate with each other are separately formed in the front part and the rear part of the main boat body; a cabin air inlet and a cabin air outlet which communicate with the main engine cabin are separately formed in the integrated mast; a surface propeller propelling device is arranged at the rear part of the main boat body; and the main boat body adopts a boat type of a single all-knuckle deep-V-shaped planing boat and the deadrise angle of a stern is 18 degrees. The multi-navigation-state underwater boat disclosed by the invention takes account of the high-speed performance of a water surface boat, the high seakeeping of a semi-submerged boat and the invisibility of a submerged boat; a large amount of water surface sensor equipment and a large amount of underwater sensor equipment can be picked up; and the multi-navigation-state in-water boat can be widely applied in the field of marine scientific research.
Owner:HARBIN ENG UNIV
Water traffic transportation tool
ActiveCN103121495AImprove seakeepingImprove wind and wave resistanceHydrodynamic/hydrostatic featuresSeakeepingStern
The invention relates to a water traffic transportation tool. The water traffic transportation tool comprises a boat bottom (1), boat sides (2), a deck (3), a surge guide groove (4) and a wave pressing and guiding baffle (5). The surge guide groove is arranged in a space between the bottom which vertically indents into the boat bottom and the deck and extends from the bow to the stern, the transverse section of the surge guide groove is arc-shaped, and the ceiling of the longitudinal section is low at the front and high at the back. The top transverse section of the wave pressing and guiding baffle is arc-shaped, and the ceiling of the longitudinal section is low at the front and high at the back. The water traffic transportation tool can be designed into forms of single, double and trisome. The water traffic transportation tool has good hydrodynamics characteristics, is capable of getting rid of large resistance of water greatly so as to improve ship speed and ship course stability, in addition, the boat can turn stably and quickly with small turning radius and the danger of overturn can not happen, and therefore maneuverability, flexibility and seakeeping of the water traffic transportation tool are improved greatly.
Owner:陈振诚
Anti-corrosion mobile floating island
ActiveCN106564571ASmooth sailingReduce shockWatercraft hull designShip vibration reductionSeakeepingEngineering
The invention relates to an anti-corrosion mobile floating island. The anti-corrosion mobile floating island comprises a working platform, a plurality of first buoys, a plurality of second buoys and a connecting component, wherein the connecting component is used for fixedly connecting the working platform, the plurality of the first buoys and the plurality of the second buoys; the connecting component comprises a plurality of first connecting units; and each first connecting unit comprises a first connecting column and a second connecting column, wherein two ends of the first connecting column are fixedly connected with the working platform and the side surface of one first buoy, respectively; the radial section of the first connecting column is elliptical; elliptical semi-major axis where the first connecting column is placed is vertical to the axial direction of the first buoy; two ends of the second connecting column are fixedly connected with the side surface of one first buoy and the side surface of one second buoy, respectively; the radial section of the second connecting column is elliptical; the elliptical semi-major axis where the second connecting column is placed is vertical to the axial direction of the first buoy; and the axial direction of the second connecting column of each first connecting unit is coincided with the axial direction of the first connecting column. The anti-corrosion mobile floating island provided by the invention has the advantage of good seakeeping capability.
Owner:深圳市海斯比浮岛科技开发有限公司
Vessel with a multi-mode hull
ActiveUS7231880B2Improve airworthinessIncreasing the payload of the shipWatercraft hull designVessel partsHull structureCarrying capacity
A ship having a multi-mode hull where the draft, seakeeping, and payload-carrying capacity are varied to match the requirements of the required mission. For example, the ship has a hull with first and second hull portions and with an interconnecting hull structure, and has a ballasting system within the hull portions and operable to adjust the draft of the vessel in conjunction with the payload carried by the ship so that the ship can perform a designated mission. The hull is designed to have an adjustable hull depth according to the payload carried to perform the mission and augmented by the ballasting system so as to optimize draft, and thus hull mode, to meet mission requirements. As a result, the ship operates in four distinct modes as follows: very shallow draft (logistics mode), shallow draft (catamaran mode), moderate draft (SWATH mode), and deep draft (stealth / low-freeboard mode).
Owner:LOCKHEED MARTIN CORP
Sharp-bilge planing boat type with constant wetted length
InactiveCN103661791AExpand the range of conditions of useGood longitudinal movement stabilityHull stemsStern postsSeakeepingBilge
The invention discloses a sharp-bilge planing boat type with constant wetted length. A boat body curved surface is a fairing space closed curved surface formed in a controlling mode with a designed water line, a midship longitudinal section line, an angle folding line, an upper boundary line, a stern transverse section line, a midship section line, a folding angle line longitudinal inclined angle, a stern inclined rising angle and a midship inclined rising angle as characteristics. The sharp-bilge planing boat type has the advantages that the wetted length is constant and unchanged no matter how the ship state changes at various kinds of ship speed; the resistance performance is greatly reduced than that of a traditional planing boat when sailing in states of water draining, transiting and taking off; the resistance performance is close to that of the traditional planing boat when sailing in a planing state; maneuverability, seaworthiness and seakeeping are greatly improved. The sharp-bilge planning boat type can be used in sea conditions 1-2 grades higher than the traditional planing boat. Further, due to the fact that the wetted length remains unchanged, the sharp-bilge planning boat type is more favorable for people to utilize the length Froude number to analyze and study the performance of the sharp-bilge planning boat type theoretically.
Owner:JIANGSU UNIV OF SCI & TECH
Offshore and intertidal-zone amphibious wind electricity operation and maintenance trimaran
The invention discloses an offshore and intertidal-zone amphibious wind electricity operation and maintenance trimaran. The offshore and intertidal-zone amphibious wind electricity operation and maintenance trimaran comprises an amphibious trimaran main side body and an amphibious trimaran superstructure located on the amphibious trimaran main side body; the front end of an amphibious trimaran side body is provided with a left front wheel and a right front wheel, and the left front wheel and the right front wheel are each provided with a front wheel deploying and retracting system; the rear end of the amphibious trimaran side body is provided with a left rear wheel and a right rear wheel, and the left rear wheel and the right rear wheel are each provided with a rear wheel deploying and retracting system; the left front wheel, the right front wheel, the left rear wheel and the rear right wheel are each provided with a hydraulic motor; the tail part of an amphibious trimaran main body is provided with a propeller and a rudder, and the propeller is driven by a power device; and a hydraulic motor electromotor pump is arranged in the amphibious trimaran main body. The offshore and intertidal-zone amphibious wind electricity operation and maintenance trimaran possesses the waterborne performance of good stability, seakeeping, rapidity and the like of a trimaran, has the characteristic that a wheel-type vehicle can move on land at a certain speed, and thus ensures the normal work of wind turbine generators in a wind power plant in intertidal zones.
Owner:JIANGSU UNIV OF SCI & TECH
Movable multifunctional buoy with liftable sensing platform
InactiveCN110341888ABig spaceLower center of gravitySustainable transportationNavigational aid arrangementsSeakeepingBuoy
The invention discloses a movable multifunctional buoy with a liftable sensing platform. The movable multifunctional buoy with the liftable sensing platform comprises a buoy hull, a control system, the liftable sensing platform, a propulsive control system, a communication navigation and positioning system, an external sensing system and an energy system; the buoy hull consists of a submerged body, an upper platform and a middle strut; and geometrical shape values of the buoy hull are all comprehensively calculated and determined in an optimized manner by taking buoy hull operability, seakeeping, rapidity and monitoring function characteristics into consideration. According to the movable multifunctional buoy with the liftable sensing platform, multiple data such as wind speed, wind direction, pressure, temperature, humidity, water temperature, pH value and oxygen content can be monitored; the monitoring of water surface environment and navigation of a ship can be realized; a better effect can be realized under cooperation of the movable multifunctional buoy and the liftable sensing platform; and meanwhile, as the propulsive control system is additionally arranged on the movable multifunctional buoy with the liftable sensing platform, the buoy possesses multiple abilities such as automatic returning and pollution source tracking under close cooperation of the propulsive controlsystem and the communication navigation and positioning system; and therefore, defects and shortcomings of a traditional buoy are effectively solved, and large-range monitoring and operation under high oceanic condition are realized.
Owner:JIANGSU UNIV OF SCI & TECH
Water rescue pentamaran
InactiveCN105947104AEasy to climbIncrease the chance of being rescuedLife-buoysHydrodynamic/hydrostatic featuresSeakeepingMarine engineering
The invention discloses a water rescue pentamaran which comprises a main ship body, two front auxiliary ship bodies and two rear auxiliary ship bodies. A casting device is arranged at the front end of the top of an upper building. The casting device comprises a box, a life-saving ball, a life-saving ball hitting mechanism and a casting pipeline. The box is fixed to the front end of the top of the upper building. The life-saving ball hitting mechanism is fixed to a bottom plate in the box. When the life-saving ball rolls to the bottom of the casting pipeline, the life-saving ball is thrown out of the box along the casting pipeline and then falls onto the water surface far away from the box after being hit by the life-saving ball hitting mechanism rotating at a high speed. According to the water rescue pentamaran, the area of a deck is large, and the stability, seakeeping and maneuverability of the water rescue pentamaran are all superior to those of a traditional mono-hull rescue ship. By the adoption of the casting device, long-distance casting of the life-saving ball can be achieved, a compressed carbon dioxide ball in a hollow ball can release carbon dioxide in time so that a plurality of inflatable handles uniformly distributed on the peripheral surface of the hollow ball can be inflated rapidly and unfolded, the rescue time is shortened, the rescue efficiency is improved, and the probability that a drowning person is rescued is increased.
Owner:JIANGSU UNIV OF SCI & TECH
Navigation state variable unmanned boat
InactiveCN104627327AImprove seakeepingGood ability to withstand wind and wavesPropulsive elementsHydrodynamic/hydrostatic featuresSeakeepingNacelle
The invention aims to provide a navigation state variable unmanned boat which comprises a boat body. An upper deck is arranged above the main boat, an integration mast is mounted on the upper deck, a fuel oil cabin, a hermetic engine cabin and a propulsion unit cabin are arranged in the boat body, a water inlet and a water outlet which are communicated are respectively arranged in the front and the rear of the boat body, a cabin intake and exhaust port communicated with the engine cabin is arranged in the integration mast, a propulsion unit is arranged in the propulsion unit cabin, a propeller is arranged in the rear of the propulsion unit, and the boat body is a full-beveled deep V-shaped planning boat type adopting single bodies and single decks and with the oblique ascending angle of the stern being 180 degrees. High speed of a surface boat and concealment of a submarine are taken into consideration, capabilities of better seakeeping and storm defending during low-speed semi-submersible sailing are achieved, abundant sensor equipment can be carried, and the unmanned boat is widely applicable to the field of marine research.
Owner:HARBIN ENG UNIV
Carrier type high-speed water three-body unmanned platform
InactiveCN105035256AIncrease the areaIncrease the use of spaceHull decksSeakeepingMarine engineering
The invention provides a carrier type high-speed water three-body unmanned platform. The carrier type high-speed water three-body unmanned platform comprises a flight deck, a ship body and piece bodies of planing boat structures, wherein the piece bodies are symmetrically arranged on the two sides of the ship body. The flight deck is arranged above the ship body and the two planing boat piece bodies and connected with the piece bodies. A multi-shaft aircraft is arranged on the flight deck or in the ship body. According to the carrier type high-speed water three-body unmanned platform, a high-speed single semi-planing wave-piercing ship and a double-body planing boat are combined, the area of the flight deck is enlarged, stability is improved, seakeeping and speedability are improved, and the low sensitivity to load changes of the platform is guaranteed; meanwhile the high-speed water unmanned platform and the multi-shaft aircraft are combined, the use distance of the multi-shaft aircraft is increased, the use space of the high-speed water unmanned platform is enlarged, and the use flexibility and maneuverability of the overall carrier type high-speed water three-body unmanned platform are improved.
Owner:SHANGHAI JIAO TONG UNIV
Speed boat model with constant wetted length and round bilge
InactiveCN103612704AExpand the range of conditions of useWet length unchangedVessel partsHydrodynamic/hydrostatic featuresSeakeepingBilge
The invention discloses a speed boat model with a constant wetted length and a round bilge. A curved surface of a boat body of the speed boat model is a closed curved surface with a fair space, and the closed curved surface with the fair space is generated on the basis of characteristics of a designed waterline, a midship longitudinal section line, an upper boundary line, a stern transverse section line, a midship transverse section line, a stern bottom oblique lift angle and a midship bottom oblique lift angle. The speed boat model has the advantages that the wetted length of the speed boat model is constant under the conditions of various speeds no matter how a sailing state of the speed boat model is changed; resistance of the speed boat model is greatly reduced as compared with resistance of the traditional speed boat with a round bilge when the speed boat model sails in drainage, transition and take-off states; resistance of the speed boat model is close to resistance of the traditional speed boat with the round bilge when the speed boat model sails in a gliding state, but the maneuverability, the seaworthiness and the seakeeping of the speed boat model are greatly improved, and the speed boat model can be used under sea conditions which are upgraded by (1-2) levels as compared with the traditional speed boat with the bilge; as the wetted length of the speed boat model constantly keeps unchanged, the speed boat model is favorable for theoretically analyzing and researching the performance of speed boats with round bilges by the aid of length Froude numbers.
Owner:JIANGSU UNIV OF SCI & TECH
Small water plane twin-hull platform
InactiveCN105644705AReduce weightSolve the strength problemHydrodynamic/hydrostatic featuresAnchoring arrangementsSeakeepingSea waves
The invention relates to the technical field of marine engineering equipment, in particular to a small water plane twin-hull platform. The small water plane twin-hull platform comprises an upper layer building, a supporting structure and an underwater floating body, wherein the upper layer building is located on the underwater floating body, and the underwater floating body supports the upper layer building through the supporting structure; the supporting structure is a truss-type structure; and the underwater floating body comprises two small water plane sheet bodies which are arranged at the two ends of the truss-type structure correspondingly. The truss-type structure serves as the supporting structure, the problems on the aspects of strength and rigidity of a large-span structure are effectively solved, and the performance of the platform is improved. As the small water plane twin-hull platform is in a semi-submersible state when fixed and working and the water plane position is of the truss-type structure, the wind and wave resistance is improved. Meanwhile, as the underwater floating body includes the small water plane sheet bodies, the whole platform has good sailing performance in the sailing process, the interference function of sea waves is obviously weakened, and the small water plane twin-hull platform has good seakeeping performance, maneuverability and shipping-direction stability.
Owner:HUBEI OCEAN ENG EQUIP RES INST CO LTD
Method for improving seakeeping of double-body wind power project workboat
The invention discloses a method for improving the seakeeping of a double-body wind power project workboat. A plurality of factors which affect the mounting of a double-body fan and the seakeeping of the double-body fan during navigation are comprehensively considered in the method, the ship form, the main parameters, the general arrangement, the fan lifting position, the anchoring and positioning system and the like of a boat are optionally designed through computation and contrastive analysis, and a double-body wind power project workboat with excellent seakeeping is designed through comprehensive evaluation. According to the method, the ability of resisting an environmental condition of the double-body wind power project workboat during work can be greatly improved, and the work time during mounting of the fan of the workboat is increased; the swaying motion amplitude of a boat body during navigation of the workboat can be enabled to be small, and the safety of the workboat during navigation is increased; and the designed wave load of the boat body is reduced by selecting wave statistical material of a reasonable navigation area, so that the structural design of the boat body is more reasonably optimized.
Owner:BESTWAY MARINE & ENERGY TECH CO LTD
Multi-habitat cross-medium aircraft carrying AUV (Autonomous Underwater Vehicle)
ActiveCN113859530APrevent splashPrevent splashes from enteringUnderwater vesselsSeaplanesSeakeepingMarine engineering
The invention belongs to the technical field of navigation equipment, and aims to provide a multi-habitat cross-medium aircraft carrying an AUV (Autonomous Underwater Vehicle) in order to solve the technical problem that in the prior art, a cross-medium aircraft is used for laying and recycling the AUV in a blank stage, an aircraft body is arranged to be in a dolphin-imitated configuration, and the abdomen of the aircraft body is arranged to be a load bin; deformable hydrofoils are mounted at the wingtips of the wings of the aircraft through the deformation mechanisms, can serve as hydrofoils to provide lift force and can also form a part of the wings to increase the area of the wings. Therefore, sliding motion transition and autonomous continuous sailing are completed between two different media of water and air, the high-performance requirements of multiple habits, high speed, high seakeeping, high concealment and the like can be met, and the reliability and the success rate of recycling the AUV are improved.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI
General purpose submarine having high speed surface capability
InactiveCN101815646AOvercoming challengesLarge variable displacementVessel movement reduction by mass displacementUnderwater vesselsGeneral purposeSeakeeping
The present invention provides a submarine that is capable of surface operation with its passenger compartment completely or predominately above the waterline. The vessel is capable of high-speed, long-range surface navigation and seakeeping.
Owner:MARION HYPER SUBMERSIBLE POWERBOAT DESIGN
Single wave-piercing yacht
InactiveCN103786829ATaking into account the rapidityReduced detectabilityDefensive equipmentOffensive equipmentSeakeepingPolygonal line
A single wave-piercing yacht in the technical field of ships on water comprises a main yacht body, a mixed internally-inclining prow, a square stern and a full-closed upper-layer building. The mixed internally-inclining prow comprises a first column, a full-closed prow deck and a prow freeboard, wherein the first column is of a broken line structure, and the portion located above a waterline and the portion located under the waterline are provided with different sweepback angles. The rapidity and seakeeping of the single wave-piercing yacht are reasonably considered by using the mixed internally-inclining prow, and the yacht can easily pierce waves. By adopting the mixed internally-inclining prow and the full-closed, smooth and wave-piercing upper-layer building, the detectability is reduced, the yacht has good cloaking capacity, and meanwhile the probability that the yacht running in the waves at high speed encounters wave impact can be reduced. The controllability of a thin and long ship form is improved by adopting spray water propulsion. The single wave-piercing yacht can serve as a houseboat, a seaborne high-speed interceptor yacht and the like.
Owner:SHANGHAI JIAO TONG UNIV
Automatic toppling centering device for single point mooring floating type structure
ActiveCN105584603ALower point of actionIncrease the righting momentVessel safetySeakeepingMarine engineering
Disclosed is an automatic toppling centering device for a single point mooring floating type structure. The automatic toppling centering device is characterized in that the automatic toppling centering device is installed between a floating body and a floating body mooring anchor chain and comprises a supporting structure which is installed on the lower end face of the floating body and extends towards the portion below the floating body, a centering swing arm is installed below the supporting structure and movably connected with the supporting structure, a weight is installed below the centering swing arm, and the mooring anchor chain is connected to the portion below the weight. The automatic toppling centering device is simple in structure, easy to produce, manufacture and install, and particularly suitable for being used on the single point mooring ocean floating type structure of the same size, the seakeeping of the floating body in waves is improved, automatic centering can be achieved after the floating body topples, and the safety of the automatic toppling centering device is ensured.
Owner:OCEAN UNIV OF CHINA
A three-hull slotted boat with an axe-shaped bow
PendingCN109018185AImprove wave penetrationGood stealthHydrodynamic/hydrostatic featuresSeakeepingStern
The invention discloses a three-hull slotted boat with an axe-shaped bow, which comprises a main hull, a sheet hull and a slotted channel. The main hull in the middle is larger; The slender hulls on both sides and the main hull are connected at the top and form transistion by a channel. The upper surface of the hull is provided with a deck, the stern of the hull is outwardly provided with an axe-shaped bow from the stern seal plate, the side surface of the axe-shaped bow is provided with a bow post, and the middle part of the side surface of the hull is provided with a freeboard. The seakeeping, stealth, and loading capacity of the hull, and can adapt to harsh sea conditions are improved. This type of boat is suitable for yachts, high-speed rescue boats and high-speed interceptor boats, with high speed and excellent stability. The aspect ratio of the main hull is not less than four, which can greatly reduce the resistance of the main hull when sailing, and at the same time, the aerodynamic lifting force generated by the hull passing through the channel when the hull sails at high speed can further improve the gliding posture and improve the rapidity of the ship while reducing the sailing resistance.
Owner:天津海之星船艇科技有限公司
An amphibious three-body wind power operation and maintenance ship in the intertidal zone
Owner:JIANGSU UNIV OF SCI & TECH
Retractable apron structure of amphibious aircraft
PendingCN109733376AImprove sailing performanceHigh structural responsivenessAir-cushionAircraft convertible vehiclesJet aeroplaneSeakeeping
The invention provides a retractable apron structure of an amphibious aircraft. The retractable apron structure comprises an apron structure and a capsule body retracting device. The apron structure comprises an arc-shaped rigid surface and a capsule body, wherein one end of the arc-shaped rigid surface is hinged to a hull, the other end of the arc-shaped rigid surface is hinged to the capsule body, the capsule body is further hinged to the bottom of the hull, and an exhaust hole channel is arranged at the joint between the capsule body and an air chamber. The capsule body retracting device comprises a connecting rope, a miniature electric hoist and a connecting piece, wherein the miniature electric hoist is arranged at the top end of the air chamber, the connecting piece is arranged on the capsule body, the connecting piece is connected to one end of the connecting rope, and the miniature electric hoist is connected to the other end of the connecting rope. The retractable apron structure of the amphibious aircraft is simple in structure, easy to operate and convenient to inspect and maintain, and can well adapt to two working conditions of an air cushion aircraft, the response ofthe apron structure is higher during sailing at sea, and the seakeeping is good; and the retractable apron design can reduce the flying resistance during flying, and the air cushion aircraft is enabled to have better navigation performance.
Owner:HARBIN ENG UNIV +2
Small-waterplane three-body wing ship
ActiveCN114771717AOvercome the disadvantage of deep draftCompact structureWatercraft hull designHydrodynamic/hydrostatic featuresSeakeepingFishery
The invention relates to a small waterplane three-body wing ship which comprises an overwater ship body, a main sliding submerged body is installed on the bottom face of the overwater ship body through a main supporting column in the front-back length direction, and the top face of the overwater ship body is transited to a horizontal plane structure from a streamline structure which is low in front and high in back. Front wings are symmetrically mounted at the front part of the overwater hull towards two sides, ground-effect wings are symmetrically mounted in the middle of the overwater hull towards two sides, and the area of the ground-effect wings is larger than that of the front wings; side sliding submerged bodies are mounted on the bottom surfaces of the single ground-effect wings through side supporting columns to form a three-body ship type; the side sliding submerged bodies are located on the two sides of the main sliding submerged body and located at the same height, the tail end of each side sliding submerged body is provided with a side water propeller power device, the tail end of the main sliding submerged body is provided with a main water propeller power device, and the top face of each ground-effect wing is provided with an air duct propeller power device. Therefore, the small waterplane area ship technology, the planing boat technology and the ground-effect wing unloading technology are combined and integrated to construct a brand-new three-body ship type, and the three-body ship type has the three capacities of high speed, high seakeeping and shallow water sailing.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
Supercavitation high-speed ship
ActiveCN110615061AGuaranteed stabilityIncrease water surface areaNavigational aid arrangementsWatercraft hull designCircular discSeakeeping
The invention relates to a supercavitation high-speed ship, and belongs to the technical field of high-speed ship application. The supercavitation high-speed ship comprises underwater submerged bodies, a support structure and a ship body. Each underwater submerged body is composed of two rotary bodies, wherein the heads of the rotary bodies are provided with the disc cavitators, and the middle cylindrical sections are provided with the annular cavitators. The support structure is connected with the two underwater submerged bodies and is in lap joint with the ship body. The cross section of theship body is designed into a deep V shape with a small waterline surface, so that the wave-making resistance can be reduced, and the seakeeping of the ship is improved. When the ship body is at a static or low-speed stage, a rotating device is rotated to put down a flat plate, so that the waterline area is increased through the arrangement of the flat plate, and the stability at the static and low-speed movement is maintained. After the ship body reaches a certain speed, the rotating device tightens a steel wire rope to retract the flat plate to be tightly attached to the surface of the shipbody, so that the wave-making resistance and the friction resistance caused by the flat plate are reduced. And meanwhile, through the manual ventilation and the auxiliary effect of the disc cavitators, the middle annular cavitators and the ventilation devices, the supercavitation bubbles are generated to wrap the submerged bodies, and the frictional resistance of the submerged bodies is reduced.
Owner:HARBIN ENG UNIV
Bow outline of ship
ActiveCN101332859BReduce stallImprove general performanceWatercraft hull designHull stemsShip wavesSeakeeping
The invention discloses a bow line of a ship. The bow linear of a ship is characterized in that in the longitudinal profile of the ship, most part of the bow vertical line of the ship which takes thedesigned sea gauge as a center is vertically downward; in the transverse profile of the ship, the largest semi-width location of the bow to the bow vertical line in the range of 3 percent of the lengthof the ship is arranged between 60 to 90 percents of the designed sea gauge. The bow line of the ship has the beneficial effects that the invention absorbs the advantages of the bulbs designs of thes hips with low and high speeds as well as combines the advantages of the two to form a line which has no bulbs, but simultaneously considers the two effects of commutation and wave absorption of thebulbs; simultaneously the optimizing design on the aspect of seakeeping is carried out on the bow as the problem of larger stall ratio that is currently faced in large ship waves is considered, whichalsoleads the bow of the ship to have the advantages of smaller stall ratio in wave as well.
Owner:JIANGNAN SHIPYARD GRP CO LTD
Ship floating body device with high seakeeping performance
ActiveCN111942521ASmall water surface areaReduce sensitivityWatercraft hull designClimate change adaptationSeakeepingMechanical engineering
The invention discloses a ship floating body device with high seakeeping performance. The ship floating body device comprises a upper-layer building, a plurality of stand columns arranged at the bottom of the upper-layer building and a plurality of float cylinders arranged on the stand columns in a sleeving mode. Each stand column is provided with a vibration reduction device, and the vibration reduction devices are located between the upper-layer building and the float cylinders. A base is arranged at the bottom of the stand column and connected with the float cylinder in a sliding mode. A plurality of springs are arranged between the inner wall face of the top of the float cylinder and the outer wall face of the top of the base, and a plurality of springs are arranged between the inner wall face of the bottom of the float cylinder and the outer wall face of the bottom of the base. The overwater part and the underwater part of the ship floating body device are separated and are connected through the stand column with the small waterline surface, so that the waterline surface area of the ship body is reduced, and the sensitivity of the ship floating body device to waves is reduced.Besides, the vibration reduction devices and the springs are installed on the stand columns, the floating body motion response under the wave effect can be reduced, and therefore the stability of theupper-layer building is further improved.
Owner:SOUTH CHINA UNIV OF TECH
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