61 results about "Seakeeping" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention aims to provide a slender high-speed high-seakeeping double-channel multi-body planing boat, which comprises a main boat body and two demihulls, wherein the two demihulls are arranged on the two sides of the main boat body, are the same, and are connected with the main boat body from the positions of 10 percent of the length of the boat to the stern through channels with curved surfaces; the sections of the parts, before the positions of 45 percent of the length of the boat, of the demihulls are quadrangles with folded edges, the bottom surfaces and inner lateral surfaces of the quadrangles are inclined surfaces, and the sectional areas of the parts, before the positions of 45 percent of the length of the boat, of the demihulls are increased along with increase of the distance with the stem; the sections of the parts, after the positions of 45 percent of the length of the boat, of the demihulls are quadrangles with folded edges, and the sectional areas are unchanged. According to the planing boat, by the symmetric and slender demihulls, the speed of the planing boat is higher, and meanwhile, the seakeeping and seaworthiness of the planing boat are ensured; in a normal navigation process, the boat body ascends, a part of the demihulls and the channels are exposed from the water surface, the channels serve as planing surfaces, and an air layer is formed at the bottom of the boat, so that resistance can be effectively reduced, a damping and shock absorption function can be realized, and the seakeeping of the planing boat is improved.