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207results about How to "Improve seakeeping" patented technology

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

Annular lower floating body semi-submersible platform

InactiveCN102963507ALarge heave stiffnessLarge recovery moment of inertiaFloating buildingsAnchoring arrangementsMarine engineeringEngineering
The invention discloses an annular lower floating body semi-submersible platform. The annular lower floating body semi-submersible platform is provided with a lower floating body (1) and an upper ship body (2) which are connected through stand columns (3), wherein the lower floating body (1) is a regular hexagonal annular column body; the stand columns (3) are pentagonal column bodies and are uniformly distributed on the six corners of the lower floating body (1); the upper ship body (2) is a hexagonal frustum with a flare; and a moon pool (9) is arranged in the center of a box-type deck (8) of the upper ship body (2). The annular lower floating body semi-submersible platform is excellent in motion performance, has the characteristic of unconditional stability, is wide in application range of operation water depth, good in overall structure strength, light in weight, low in manufacturing cost and low in operation energy consumption, and can be applied to deepwater oil and gas exploitation under harsh marine environment conditions.
Owner:DALIAN SHIPBUILDING IND

Floating fan base with flare type tension legs, marine wind-driven generator and construction method

ActiveCN103818523AStable stateOvercome the defect of excessive horizontal movementFinal product manufactureWind motor supports/mountsWind drivenEngineering
The invention discloses a floating fan base with flare type tension legs, a marine wind-driven generator and a construction method. The floating fan base comprises a top supporting platform, a bottom supporting structure, at least three hollow stand columns and a ballast regulating system, wherein the top supporting platform is used for supporting a pylon, blades and a wind-driven generator set; the bottom supporting structure is connected with multiple tension legs; the top supporting platform is connected with the bottom supporting structure via the hollow stand columns, the hollow stand columns are arranged around the vertical center line of the floating fan base, and each stand column inclines outwards from a lower end to an upper end relative to the vertical center line of the floating fan base; the ballast regulating system is arranged in the stand columns and / or the bottom supporting structure. The marine wind-driven generator of the base with the structure has excellent movement performance, integral wet towing can be performed, and the floating fan base and the marine wind-driven generator are convenient to manufacture, assemble and mount.
Owner:XINJIANG GOLDWIND SCI & TECH

Stabilizing apparatus combined by T-shaped hydrofoil and rotor foils

The invention belongs to the field of retractable and foldable hydrofoils of ships, and specifically relates to a stabilizing apparatus combined by a T-shaped hydrofoil and rotor foils. The stabilizing apparatus is designed to solve the problem of stabilization of high-speed ships at a low speed or at the zero speed, and the see-keeping and seaworthiness of the high-speed ships at the low speed are improved. The stabilizing apparatus is formed by a pillar, horizontal main foils, flaps, and the rotor foils, the upper end of the pillar 1 is fixed at the bottom of a ship, the lower end of the pillar 1 is vertically connected to the horizontal main foils 2, and the rotor foils 3 are cylindrical structures positioned in auxiliary foil cabins at the inner parts of the horizontal main foils and are driven by a hydraulic cylinder and a motor. When the high-speed ship is in the low speed, the conventional stabilization device can hardly produce a stabilization effect, and the sea-keeping of a hull is also affected by the shaking movement at the low speed and the zero speed. According to the stabilization apparatus, the problem of sea-keeping of the high-speed ships at the low speed is improved, the discomfort of passengers is reduced, the working environment of working personnel is improved, and the service quality of the working personnel is improved.
Owner:HARBIN ENG UNIV

Semi-submersible unmanned vehicle submarine three-dimensional terrain detection device and method

The invention provides a semi-submersible unmanned vehicle submarine three-dimensional terrain detection device and method. The device comprises a semi-submersible unmanned vehicle composed of a floating body and a main hull, wherein an antenna is installed above the floating body, a multi-beam sonar terrain detection system, an attitude sensor, a sound velocity profiler, an inertial navigation system, a main control computer and a battery are installed on the main hull, and the multi-beam sonar terrain detection system comprises a processing extension, a transmitter, a receiver, a transmittedsound array, a received sound array and a sonar host. According to the device, task planning and scanning are performed through the semi-submersible unmanned vehicle carrying the multi-beam sonar terrain detection system, a water depth value is obtained through calculation according to back-and-forth time of sound waves, the angle of arrival of a beam and data obtained after time synchronous correction is performed by use of 1PPS, and a submarine three-dimensional terrain map is generated. The device has the advantages that a wave region is avoided, communication and positioning are not limited, the self-stability and invisibility are excellent, the measurement range is wide, measurement speed is high, and measurement efficiency is high.
Owner:HARBIN ENG UNIV

Naval vessel bottom flexible heavy punch stabilization device capable of improving naval vessel seakeeping performance and firing accuracy

The invention relates to a naval vessel bottom flexible heavy punch stabilization device capable of improving the naval vessel seakeeping performance and firing accuracy, and belongs to the naval vessel equipment invention. The naval vessel bottom flexible heavy punch stabilization device consists of a heavy punch, a flexible casing pipe and a winch. The naval vessel bottom flexible heavy punch stabilization device has an extremely simple structure, all works are completely handed to natural force-gravity to finish, and the naval vessel bottom flexible heavy punch stabilization device can be easily repaired and maintained and has an extraordinary function; the gravity of a naval vessel can be quickly moved down at any time and place, rolling and pitching can be quickly responded at any time and place, and a centralizing moment of force can be provided for the naval vessel at any time and place; the naval vessel bottom flexible heavy punch stabilization device can be applied to any offshore naval vessels, such as small vessels, aircraft carriers and ocean platforms; the seakeeping performance of the naval vessel can be improved to cope with violent storm and roaring waves; and meanwhile, the naval vessel weapon attacking accuracy and the takeoff and landing safety of a carrier plane in the fight can be greatly improved.
Owner:徐积勉

Hydrofoil and planing combined boat with retractable front hydrofoil

The invention discloses a hydrofoil and planing combined boat with a retractable front hydrofoil, which comprises a boat body and a propulsion device at the stern of the boat body; the bottom surface of the stern of the boat body serves as a planing surface; the mid-front part of the boat body is a single hull; the mid-rear part of the boat body takes a tri-body boat shape and comprises a middle boat body and side boat bodies; the two sides of the bottom of the middle boat body extend outwards to form arc-shaped grooves which constitute lateral splashing water channels; the front hydrofoil is arranged under the bottom of the mid-front part of the boat body through vertical pillars on the two sides; a pillar axially-moving mechanism is arranged in the boat body; and when the front hydrofoil goes up to the highest position to be inside the bottom of the boat body completely, the planes on the two sides of the front hydrofoil are clung to the two sides of the front part of the boat body to become a part of the outer surface of a fairing of the boat body. The hydrofoil and planing combined boat combines high speed of a planing boat and good seakeeping property and small wave making property of a hydrofoil, overcomes the defect that the planing boat or the hydrofoil is not suitable to rush to a shallow, effectively solves the problem of severe lateral splashing caused by single-hulled or twin-hulled planing, and can serve as a hydrofoil as well as a planing boat.
Owner:JIANGSU UNIV OF SCI & TECH

Hovercraft without lift fan

The invention aims at providing a hovercraft. The hovercraft comprises a ship hull and a ship power device, wherein the ship hull comprises a main ship hull and two sub-ship hulls; and the bottom surface of each sub-ship hull is lower than that of the main ship hull. The two sub-ship hulls are symmetrically arranged below the front part of the bottom surface of the main ship hull in parallel, and an interval is formed between the two sub-ship hulls. The outer side surfaces of the sub-ship hulls and the outer side surface of the main ship hull are aligned or are of the same side surface, and the aligned side surfaces or the same side surface extend / extends to the lower parts of the bottom surfaces of the main ship hull and the sub-ship hulls for constituting a main side wall. The inner side surfaces of the sub-ship hulls extend to the lower parts of the bottom surfaces of the sub-ship hulls for constituting sub-side walls. During navigation of the hovercraft, the main side wall and the sub-side walls are partially inserted into water and jointly form three lift spaces which are independent respectively and open forwards with the bottom surfaces of the main ship hull and the two sub-ship hulls respectively. The hovercraft eliminates the lift fan of the traditional hovercraft, but a high-pressure air cushion can be effectively formed at the bottom parts of the ship hulls during the navigation; and the hovercraft further has the advantages of small navigation resistance, high propulsion efficiency and high navigation speed.
Owner:SHANGHAI LIZARD BOAD TECH CO LTD

High-speed catamaran

The invention provides a high-speed catamaran which comprises two sheet bodies arranged in parallel and a main cabin connected onto the tops of the sheet bodies. The high-speed catamaran further comprises two bulbnoses, an air suction device and a plurality of micro-bubble generating devices, wherein the two bulbnoses are connected to the bottom of the main cabin through struts and are vertically arranged on a bow and a stern of the catamaran, the air suction device is mounted on the top of the main cabin and is communicated with air pipes arranged inside the high-speed catamaran in a built-in mode, and the plurality of micro-bubble generating devices are arranged on the surfaces of the bulbnoses and the sheet bodies and is communicated with the air pipes. Hydrofoils are symmetrically arranged on both sides of each of the bulbnoses. The seakeeping performance of the catamaran is enhanced by arranging the bulbnoses with the hydrofoils on the bow and the stern to reduce wave-making resistance. The micro-bubble generating devices arranged at the bottom of the catamaran can generate thin bubble films at the bottom of the catamaran to reduce the frictional resistance of the catamaran. The air suction device arranged on the top of the cabin and air suction rotors can further improve the air suction efficiency of the air suction device, enhance the resistance reduction effect of the micro-bubble generating devices, and greatly reduce the energy consumption for generating micro bubbles.
Owner:SHANGHAI JIAO TONG UNIV

Deepwater semi-submersible platform type wind power plant

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

Cross anti-pitch rudder

InactiveCN1775625AReduce the effect of pitching motionReduce pitchSteering ruddersResonancePropeller
The invention relates to a crossed anti-vertical rocking rudder, belonging to ship and ocean engineering technical field, composed of a vertical response rudder blade, a horizontal response rudder blade and intersection streamline rudder ball and installed at back of tail screw propeller of a ship and adjacent to the tail screw propeller. The invention effectively reduces vertical shaking motion of the ship body in waves, especially by a large margin reducing vertical shaking amplitude of the ship body approaching to resonance state, and completely improving wave resisting performance of a large-scale water surface ship. It can hang, semi-hang and support a rudder, applied to a single- paddle single-rudder ship, a double-paddle double-rudder ship and a multi-paddle multi-rudder ship. It can be used in designing a new ship and reconstructing and improving the wave resisting performance for the active water surface ships on condition of not changing the structures of the main ship bodies, thus having a completely wide spreading and applying prospect.
Owner:SHANGHAI JIAO TONG UNIV

Small multifunctional solar twin-hull unmanned ship

The invention discloses a small multifunctional solar twin-hull unmanned ship. The small multifunctional solar twin-hull unmanned ship comprises an unmanned ship body, and the unmanned ship body comprises a pair of sheet bodies used for making the unmanned ship float on the water surface, a pair of connecting bridges, a backing plate, a main hull, an electric system, a propelling system and a control system. The connecting bridges are erected between the pair of sheet bodies, the backing plate is arranged between the pair of connecting bridges, and the backing plate and the pair of connecting bridges form a vertical structure. The main hull is arranged on the lower surface of the backing plate, and the electric system, the propelling system and the control system are arranged on the unmanned ship body. Corresponding ocean environment monitoring tasks can be completed, collected data can be transmitted back in time, and high efficiency, environmental friendliness and intelligence are integrated.
Owner:SHANGHAI MARITIME UNIVERSITY

Deformable planing boat with both rapidity and seakeeping ability

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

Air bag girder type truss for large offshore platform

InactiveCN104648624AAvoid non-axial loadsImprove processing and assembly efficiencyArtificial islandsUnderwater structuresLongitudinal planeAtmospheric pressure
The invention discloses an air bag girder type truss for a large offshore platform. An air bag girder is used for replacing a web rod layer of an n-truss longitudinal plane truss in the traditional space stereo truss. The air bag girder type truss consists of longitudinal chord rods, transverse chord rods, vertical web rods, transverse oblique web rods, longitudinal oblique web rods and the air bag girder, wherein the air bag girder consists of an elliptical air bag, an air bag upper arc girder, an air bag lower arc girder, air bag hoops, upper arc girder support rods and lower arc girder support rods; after certain air pressure is filled into the elliptical air bag, the whole air bag girder type truss can carry external load and provide buoyancy in water; a large number of air bag girder type trusses and the space stereo truss are mutually connected according to certain rule, so as to form a large offshore platform structure. The air bag girder type truss has the advantages that the weight of the air bag structure is light, the buoyancy property is good, the construction of the space truss is convenient and rapid, and the rigidity is high; a floating type structure system with light weight, high strength, convenient construction, rapid and convenient scale expansion, and partial balance of internal air pressure and external water pressure is formed.
Owner:SHANGHAI MARITIME UNIVERSITY

High-performance small-waterline-area twin-body intelligent measurement ship

The invention discloses a high-performance small-waterline-area twin-body intelligent measurement ship. A ship body of the ship comprises a submerging body and a case. A power unit and a direction control unit are arranged on the submerging body, a remote control unit and a measuring unit are arranged on the case, and a solar cell panel is arranged on the upper surface of the casing. The submerging body is formed by two parallel and symmetric torpedo submersible diving chambers. Each submersible diving chamber comprises three watertight battery compartments. Storage batteries are arranged in the three battery compartments and are connected through wires. The storage batteries are connected with the solar cell panel, the power unit, the remote control unit and the measuring unit through wires respectively. By means of the measurement ship, new energy is fully used during measurement ship navigation and stored, and accordingly, the endurance of the ship and the intelligent equipment normal operation are guaranteed, and the survey is efficient, energy saving and environmentally friendly.
Owner:ZHEJIANG OCEAN UNIV DONGHAI SCI & TECH COLLEGE

Basic module of extra-large marine floating structure

PendingCN107097913AStrong ability to resist wave-induced movementStrong anti-sway stabilityClimate change adaptationVessel safetyWater volumeLoad resistance
The invention discloses a basic module of an extra-large marine floating structure. The basic module is composed of a lower-portion floating body structure, an upper-portion structure and middle connecting structures. The lower-portion floating body structure comprises multiple dispersedly arranged floating bodies and is wholly in an extra-large water plane area form, the sum of the water discharging areas of the floating bodies is greater than the equivalent-quantity water volume of the whole weight of the floating structure, the upper-portion structure is a frame structure or a box body structure, the middle connecting structures are dispersedly arranged in space, and the lower-portion floating body structure is connected with the upper-portion structure through the middle connecting structures to form a hyperstatic combined space structure. Two basic modules can form the kilometer-level extra-large marine floating structure through one-time splicing. The basic module has very strong wave exciting load resistance and load change capability, has very strong sway-resistant stabilizing rigidity and can remarkably decrease relative motion during basic module splicing and connector load after splicing.
Owner:TANGSHAN REMOVABLE ISLAND MARINE HEAVY IND CO LTD

Planing hull for rough seas

A watercraft hull has a flat pad keel whose beam tapers towards the bow and at the transom is 15% to 25% of the beam at its chines. The hull is symmetric about its centerline, has a fine entry bow, and a pair of hard chines. Between the pad keel and the chines the hull has at least one pair of generally flat longitudinal steps having approximately 0 degrees of deadrise forming planing surfaces symmetrically about the hull centerline. The hull also includes at least one pair of ultra high deadrise panels, outboard of and adjacent to the pad keel, symmetrically about the hull centerline, and extending to the flat planing panels above them. The ultra high deadrise panels have a deadrise approximately 50 degrees. Additional flat planing surface structures having approximately 0° deadrise are installed longitudinally on the hull between the pad keel and the hard chine.
Owner:HULL SCI RES LLC

Composite triple-hulled vessel with aid-to-navigation hydrofoils

The invention discloses a composite triple-hulled vessel with aid-to-navigation hydrofoils. The composite triple-hulled vessel comprises a deck, a main vessel body and two side vessel bodies, wherein the main vessel body and the two side vessel bodies are fixedly connected to the lower surface of the deck; the two side vessel bodies are located at the left and right sides of the main vessel body, and a deep-immersed aid-to-navigation hydrofoil is arranged at the tail portion of each side vessel body. According to the composite triple-hulled vessel with the aid-to-navigation hydrofoils, the design ideas of two high-performance vessels which are added with hydrofoils and side bodies correspondingly to be propelled are combined together, while the advantages of a triple-hulled vessel is ensured, the aid-to-navigation hydrofoils added with propelling devices assist the side vessel bodies to propel, so that the turning ability and the maneuverability of the triple-hulled vessel are enhanced, and the lengths of the deep-immersed aid-to-navigation hydrofoils and wave energy recycling hydrofoils are adjusted to change the areas of the hydrofoils, so that the flotation of the triple-hulled vessel in the sailing process is controlled.
Owner:JIANGSU UNIV OF SCI & TECH IND TECH RES INST OF ZHANGJIAGANG

Hexagonal semi-submersible type tidal current energy and wind energy power generation platform

The invention provides a hexagonal semi-submersible type tidal current energy and wind energy power generation platform which comprises a hexagonal platform structure and a main floating body. The hexagonal platform structure comprises a hexagonal frame. The six vertexes of the hexagonal frame sequentially comprise a first vertex, a second vertex, a third vertex, a fourth vertex, a fifth vertex and a sixth vertex in an anticlockwise mode. A first box beam, a second box beam and a third box beam are mounted between the six vertexes. A first variable cross-section floating barrel, a second variable cross-section floating barrel, a third variable cross-section floating barrel, a fourth variable cross-section floating barrel, a fifth variable cross-section floating barrel and a sixth variable cross-section floating barrel are mounted below the six vertexes respectively. The main floating body is arranged between the first variable cross-section floating barrel and the fourth variable cross-section floating barrel, a first stand column is arranged between the junction of the first box beam and the second box beam and the main floating body, and a second stand column is arranged between the junction of the first box beam and the third box beam and the main floating body. A first water turbine lifting device, a second water turbine lifting device and a third water turbine lifting device are mounted between the first box beam and the main floating body. According to the hexagonal semi-submersible type tidal current energy and wind energy power generation platform, the excellent stability can be guaranteed, and the sea keeping performance is greatly improved; in addition, water ballast spaces are arranged in the six floating barrels and can be used for adjusting the water volume inside so that the floating state of the platform can be guaranteed.
Owner:HARBIN ENG UNIV

Planing hull for rough seas

The disclosed watercraft hull has a flat pad keel whose width tapers towards the bow and its width at the transom is 15% to 25% of the hull's width at its chines. The hull is symmetric about its centerline, has a fine entry bow, a transom, and a pair of hard chines. Between the pad keel and the chines the hull has at least one pair of generally flat panels referred to herein as longitudinal steps having approximately 0 degrees of deadrize forming planing surfaces symmetrically located about the hull centerline. The hull also includes at least one pair of ultra high deadrize panels, outboard of and adjacent to the pad keel, located symmetrically about the hull centerline, and extending therefrom to the flat planing panels above them. The ultra high deadrize panels have a minimum average deadrize of approximately 50 degrees measured along their length. Additional flat planing surface structures having approximately 0° deadrize may be installed longitudinally on the hull between the pad keel and the hard chine such that the vertical offset between any two planing surfaces along the hull's stagnation line does not exceed approximately six inches. High deadrize panels or fillet panels with deadrize angles of between about 0.20 and 35 degrees may be included in the hull outboard of and adjacent to the ultra high deadrize panels and located symmetrically about the hull centerline. The fillet panels are tapered into wedge shapes at their forward ends to blend into the adjacent ultra high deadrize and flat planing panels.
Owner:HULL SCI RES LLC

Offshore-floating-type wind power generation and fishing net cage culture mixed-type platform

The invention discloses an offshore-floating-type wind power generation and fishing net cage culture mixed-type platform, and relates to the field of wind energy utilization. The offshore-floating-type wind power generation and fishing net cage culture mixed-type platform is in a regular pentagon layout and comprises fans, a central vertical column, vertex vertical columns, a buoyancy compartment,fixed fishing nets, retractable fishing nets, a control chamber and supporting rods; each vertex vertical column is arranged at the corresponding vertex of a regular pentagon, the central vertical column and the buoyancy compartment are arranged at the central point of the regular pentagon, and the buoyancy compartment is directly connected to the lower part of the central vertical column; everytwo adjacent vertex vertical columns are connected through the corresponding supporting rods, and the vertex vertical columns and a central buoy are connected through the supporting rods; the controlchamber is located on the upper part of the central vertical column; the i vertex vertical column serves as a mooring vertical column, and the two fans are arranged on the upper parts of the (i-1) vertex vertical column and the (i+1) vertex vertical column, wherein i is larger than 1 and smaller than 5; and the fixed fishing nets are arranged at the periphery and the bottom of the platform, and the retractable fishing nets are arranged between the central buoy and the vertex vertical columns. The stability of floating-type wind power generation and fishing culture fusion is improved.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)

High speed emergency rescue and disaster relief boat capable of upturning and side-swaying hydrofoils

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

Submerged body retractable type small water area amphibious ship

The invention relates to a submerged body retractable type small water area amphibious ship. The ship comprises a ship body. A power system, a rudder and a backing rudder are installed on a deck of the ship body. Wheels are installed at the portion, below the backing rudder, of the ship body; the two lower sides of the ship body are provided with submerged bodies through submerged body supportingcolumns, the ship body and the submerged body supporting columns are connected through a retractable supporting rod system, and due to the retracting state and the unfolding state of the retractable supporting rod system, by combining the ship body and the submerged bodies, conversion between the amphibious ship type and the small water area amphibious ship type is achieved. The ship is compact and reasonable in structure, and convenient to operate; due to the effect of the retractable supporting rod system, conversion between the amphibious ship type and the small water area amphibious ship type can be achieved conveniently; the requirement for various types of shallow region navigations can be met, and the certain anti-wind-wave requirement in sea can be met.
Owner:中船重工(海南)飞船发展有限公司

Anti-splash single-hull planing boat

The invention discloses an anti-splash single-hull planing boat which comprises a boat body, a propelling device and a composite stabilizing wing, wherein the composite stabilizing wing is arranged at the bottom of a stem; the composite stabilizing wing comprises a vertical stabilizing wing and a horizontal stabilizing wing; downwardly inclined longitudinal anti-splash bodies are symmetrically arranged on two sides of the boat body from the front bilge part of a boat middle part to a stem bilge part; the widths of the longitudinal anti-splash bodies are gradually narrowed from the front part of the boat middle part to the stem; the head part of the boat body is gradually transitional from a shallow V-shaped cross section with an acute angle between the two side surfaces to the shallow V-shaped cross section with an obtuse angle between two side surfaces of the front part of the boat middle part; and the front part of the boat middle part is gradually transitional from a shallow V-shaped cross section with an obtuse angle between two side surfaces to a horizontal cross section, on which V-shaped edge strips extend downwards from two sides of the bottom of the stem, or an inverted shallow V-shaped cross section with an obtuse angle between two side surfaces. According to the invention, the splashing of lateral water flow of the sliding surface of the boat body can be effectively prevented, so that the rapidness, transverse stability, longitudinal stability, directional stability, seakeeping quality and so on are greatly improved, convenience for mounting propellers with larger diameters is achieved, and the propelling efficiency is increased.
Owner:JIANGSU UNIV OF SCI & TECH

Base plate-free concrete floating platform capable of realizing one-time pouring molding and modularized splicing

The invention discloses a base plate-free concrete floating platform capable of realizing one-time pouring molding and modularized splicing. The base plate-free concrete floating platform comprises a box-shaped structure and a base plate-free floating platform main body, wherein the floating platform main body comprises flat lateral plates, bulged lateral plates, a top plate and inner separating plates; the lateral plates on the two sides along the longitudinal direction are arranged as the bulged lateral plates; the lateral plates on the two sides along the width direction are arranged as the flat lateral plates; the inner separating plates are arranged in the floating platform main body, so that the inner chamber of the floating platform main body is divided into a plurality of segmented spaces; floaters are filled in the segmented spaces; the structure of the base plate-free floating platform can be poured and molded at one time, the manufacturing process is simplified and the manufacturing difficulty is lowered; the structure is high in continuity and high in strength; the structure is seamless and water is difficult to permeate the structure; the base plate-free floating platform can be spliced in a modularized way and can be assembled into a longer floating bridge or larger platform; a flexible connecting rod is adopted for connecting, so that the relative fluctuation between the floating platforms is allowed, the base plate-free concrete floating platform is adaptive to the wave environment and the wave resistance is high; an embedded threaded sleeve on the top plate of the floating platform can be used for hoisting the floating platform and also can be applied to fixing the accessory structures, such as a mooring bitt in the use process of the floating platform.
Owner:罗庆杰

Hybrid floating platform of offshore wind power generation and fishery net cage cultivation

The invention discloses a hybrid floating platform of offshore wind power generation and fishery net cage cultivation, and relates to the field of wind power utilization. The platform is a regular n-sided shape, wherein the n is an odd number. The platform comprises draught fans, a center stand column, peak stand columns, a floating cabin, a fixed fishing net, a retractable fishing net, a controlchamber and supporting rods. The peak stand columns are respectively arranged at each peak of the regular n-sided shape. The center stand column and the floating cabin are arranged at the center point. The floating cabin is directly connected below the center stand column to form a center float. The supporting rods are connected between the peak stand column and between the peak stand column and the center float. The control chamber is arranged above the center stand column. The connecting between one peak stand column and the center stand column is used as the symmetric axis, and the m draught fans are symmetrically arranged above other peak stand columns, wherein the m is no more than n-1, and m is an even number. The fixed fishing net is fixed to the circumference and the bottom of theplatform. The retractable fishing net is arranged between the center float and the peak stand columns. Stability of fusion of floating wind power generation and fishery cultivation is improved.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)

Triangular-section power draft-increase ballast-free semi-submersible conveying ship

The invention provides a triangular-section power draft-increase ballast-free semi-submersible conveying ship. The ship comprises a main ship body, a power draft-increase system and a control system. The main ship body comprises an upright rounded-triangular-cross-section parallel body, a flow inflow section and a flow removal section, the upright rounded-triangular-cross-section parallel body is designed in an optimized mode to adapt to underwater near-surface sailing, the flow inflow section and the flow removal section downward incline to a blunt bow and a conical stern respectively. The power draft-increase system is a multi-wing combined system, comprises board side fixed negative lift horizontal wings, a controllable main lift adjusting wing combined appendage and stern lift adjusting horizontal wings, and is used for adjusting vertical force of the ship body under various loading conditions to achieve the optimal semi-submersible draft. The control system comprises a variable wing type section forward-leaning upright column, an inward-leaning light invisible upper construction part, shallowly submerged piercing hydrofoils and a stern controllable vertical wing, and is used for controlling the course and stability of the ship body. The ship is novel in type and high in subsequent expansion performance, is a tool for navy land battle force hiding, quick delivery and emergency transport of special civil materials in a route, and has certain research and application value in military and civil fields.
Owner:HARBIN ENG UNIV

Water traffic transportation tool

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

Joint automatic control device for inner flaps/outer flaps of hydrofoil catamaran

The invention aims to provide a joint automatic control device for inner flaps / outer flaps of a hydrofoil catamaran. The joint automatic control device comprises a catamaran. Two sheets are respectively mounted at the left end and the right end of the lower side of the catamaran, a front hydrofoil is mounted at the front ends of the lower sides of the two sheets, a rear hydrofoil is mounted at the rear ends of the lower sides of the two sheets, a first outer flap, a second outer flap, a first inner flap and a second inner flap are respectively mounted at the rear end of the front hydrofoil by the aid of a first connecting shaft, a third outer flap, a fourth outer flap, a third inner flap and a fourth inner flap are respectively mounted at the rear end of the rear hydrofoil by the aid of a second connecting shaft, and the first outer flap, the second outer flap, the third outer flap, the fourth outer flap, the first inner flap, the second inner flap, the third inner flap and the fourth inner flap are respectively connected with respective servo motors. The joint automatic control device has the advantages that the joint automatic control device is simple in structure and reasonable in design, multifunctional and multi-objective cooperative control is implemented, and the safety, the seaworthiness and the maneuverability of the hydrofoil catamaran are improved; the front hydrofoil and the rear hydrofoil are respectively connected with the two sheets of the hydrofoil catamaran, so that the mechanical structural strength is improved.
Owner:HARBIN ENG UNIV

Anti-corrosion mobile floating island

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
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