307 results about "Hull structure" patented technology

The split mounting type non-self-propelled cutter suction dredger body structure comprises a main buoyancy tank and side buoyancy tanks, and each side buoyancy tank is formed by sequentially connecting a first-section side buoyancy tank single body, a middle-section side buoyancy tank single body and a tail-section side buoyancy tank single body; a first sealing transition void cabin and a second sealing transition void cabin are arranged at the splicing ends of the head section and the middle edge buoyancy tank single bodies and are in sealing connection through fasteners; a third sealed transition void is arranged on the side, close to the main buoyancy tank, of the middle side buoyancy tank single body, a fourth sealed transition void is arranged on the side, close to the middle side buoyancy tank single body, of the tail side buoyancy tank single body, a fifth sealed transition void is further arranged on the tail side buoyancy tank single body, and the third sealed transition void and the fifth sealed transition void are connected with the main buoyancy tank in a sealed mode. A main buoyancy tank sealing chamber corresponding to the sealed transition void is welded to the inner wall of the main buoyancy tank body, a sealing assembly is arranged between the main buoyancy tank sealing chamber and the sealed transition void, and sealed connection or detachment of the side buoyancy tanks and the main buoyancy tank is achieved by operating the sealed transition void. The structure is matched with the sealing transition void and the sealing assembly, the problems that a traditional splicing mode is low in construction efficiency, poor in sealing performance, inconvenient to maintain and the like are effectively solved, and the ship body splicing construction efficiency and reliability are improved.

The invention relates to a ship launching method, and belongs to the technical field of ship building and launching. The method comprises the steps that S1, the inclined shipway unit is divided into a plurality of first supporting areas and second supporting areas which are distributed in a staggered mode; s2, a coupling beam platform is arranged on at least one second supporting area, and supporting cross beams are arranged on the other first supporting areas; the two sides of the coupling beam platform extend outwards from the middle longitudinal buoyancy tank, the two ends of the coupling beam platform are in lap joint with the two inclined shipway units respectively, and the coupling beam platform, the supporting cross beam and the supporting face of the first supporting area are coplanar. S3, the longitudinal center line of the middle longitudinal buoyancy tank coincides with the connecting line of the center point of the coupling beam platform and the center point of the supporting cross beam; s4, launching the breeding work ship. According to the scheme, the matching performance of the inclined shipway unit and the bottom frame structure of the breeding work ship can be optimized, and the integrity of the ship body structure in the launching process is guaranteed by increasing the supporting contact area and reducing local stress concentration.

The invention belongs to the technical field of liquid carbon dioxide transport ships, and particularly relates to a novel liquid carbon dioxide transport ship adopting a fiber composite liquid cargo tank. The ship comprises a main ship body. The main ship body comprises a tail module, a cabin module, a cargo compartment module and a head module. A plurality of independent cargo compartment chambers are arranged in the cargo compartment module, and the adjacent cargo compartment chambers are separated through transverse compartment walls; an independent carbon dioxide liquid cargo tank, a top ballast tank and a bottom ballast tank are arranged in each independent cargo compartment; the carbon dioxide liquid cargo tank is made of a fiber composite material or a combination of steel and the fiber composite material and comprises an inner container and a winding layer, and the cross section of the carbon dioxide liquid cargo tank is of a bilateral symmetry polygonal structure. The carbon dioxide liquid cargo tank is connected with the hull structure through supporting blocks. The liquid carbon dioxide transport ship is high in cargo hold area capacity utilization rate, high in stability and reliability and low in capacity requirement for hoisting facilities in the construction process.

The invention belongs to the technical field of aircraft design, and discloses an amphibious aircraft water surface sliding speed reduction, turning and resistance reduction system and method.The system comprises two water baffles, and the two water baffles are arranged on the two sides of a hull structure below an aircraft waterline respectively and located between an aircraft belly fault step and a tail fault step; when the opening angle is small, the two water baffles form an air cavity at the rear portion through the ventilation effect to form the drag reduction effect, when the opening angle is large, the two water baffles reduce the exciting force caused by vortex falling, and the two water baffles are embedded in a groove of the rear fuselage when being forbidden to conform to the overall shape of the aircraft. The water baffles are innovatively arranged on the two sides of the hull structure of the seaplane, resistance or turning torque or a resistance reduction air cavity can be generated by changing the hydrodynamic shape of the seaplane when the seaplane slides on water, and the sliding process of the seaplane is controlled.

The invention relates to rare earth steel for a 355MPa-grade hull structure and a preparation method of the rare earth steel, belongs to the technical field of metal materials, and solves the problems that the existing steel for the 355MPa-grade hull structure is poor in comprehensive performance and cannot meet the service requirements of high-end ships. The steel comprises the following chemical components in percentage by weight: 0.10%-0.15% of C, 0.20%-0.50% of Si, 0.70%-1.00% of Mn, 0.03%-0.10% of V, 0.10%-0.30% of Cu, 0.04%-0.08% of Mo, 0.10%-0.20% of Cr, 0.30%-0.40% of Ni, 0.003%-0.01% of Ce, less than or equal to 0.01% of P, less than or equal to 0.01% of S, less than or equal to 0.003% of O and the balance of iron and inevitable impurities. The prepared 355MPa-grade rare earth steel for the hull structure has obdurability and corrosion resistance at the same time.

A sail propulsion system comprises, in combination: a base (300), two streamlined aerodynamic flaps (100, 200), each symmetrical with respect to a longitudinal plane and having a leading edge and a trailing edge, and extending vertically from the base, two pivoting flap links on the base, defining pivot axes (A1, A2) parallel to a main axis (A3), a common pivoting link, around the main axis, between the base and a ship structure, the pivot axes of the flaps and the pivot axis of the base being contained in the same vertical plane, a 360° motorized orientation control, capable of bringing the base and flaps into one of the following configurations: - a working configuration where the flaps have initial orientations that are close but different,with leading edges (BA) oriented in a first direction and a gap between the trailing edge (BF) of one flap and the leading edge (BA) of the second flap, - a safety configuration where both flaps are oriented in the same direction, - a space-limiting configuration where the two flaps extend head-to-tail against each other. (Fig. 5),

A modular ski tower includes a first leg member including a housing having a first end configured to be secured to a boat structure of a boat via a mounting assembly, the housing comprising a composite material and defining an interior space at least partially filled with a structural foam, and a crossmember including a housing, the crossmember comprising a composite material and defining an interior space at least partially filled with a structural foam, wherein a second end of the first leg member is coupled to a first end of the crossmember and a second end of the second leg member is coupled to a second end of the crossmember via respective slip fit couplers, and wherein the each of slip fit couplers are permanently secured via an adhesive.

The invention belongs to the technical field of ship body structures, and discloses a ship body double-layer bottom structure and an installation method thereof, in the installation process of the ship body double-layer bottom structure, when a worker assembles an inner bottom plate body, a ship outer plate, a solid rib plate and a rib, installation of a slow-installation cover plate can be delayed, and when the structure is assembled, installation of the slow-installation cover plate is facilitated. In addition, after installation of the inner bottom plate body, the ship outer plate, the solid rib plate and the ribs is completed, a worker can also firstly install other equipment in the bilge of the ship body, due to the fact that the slow installation cover plate is not installed yet, the large operation space is achieved at the moment, and after installation of the structure is completed, the worker can conveniently install the inner bottom plate body, the ship outer plate, the solid rib plate and the ribs. The buffer cover plate is installed in the containing groove and fixedly connected with the ship outer plate, the groove wall of the containing groove, the solid rib plate and the ribs at the same time, due to the fact that the surface of the buffer cover plate is flush with the surface of the inner bottom plate body, the space above the inner bottom plate cannot be occupied, and more installation space can be reserved for a liquid tank or cabin equipment.

This invention relates to a semi-mounted composite skin frame hull structure. A first, second, third, fourth, and fifth lower arc frame are all located below the left and right main beams and are fixedly connected to them. These lower arc frames are arranged sequentially from the front docking frame to the rear docking frame. A first, second, third, fourth, and fifth upper arc frame are all located above the left and right main beams and are fixedly connected to them. These upper arc frames are arranged sequentially from the front docking frame to the rear docking frame. This invention provides a clear force transmission path, ensuring the hull structure meets strength and rigidity requirements under various working conditions and loads, enabling rapid installation of the warhead, while simultaneously meeting design weight requirements.

The present invention relates to the field of shipbuilding technology, and discloses a large pile-circling crane base, comprising a base, a mounting base disposed on top of the base, and a connecting base disposed on top of the mounting base. The bottom of the base is fixedly connected to the hull structure, and the mounting base includes three box-shaped legs, which enclose a mounting cavity for mounting a lifting device, and a mounting hole for a lifting unit assembly of the lifting device is formed between two adjacent box-shaped legs. The three box-shaped legs are respectively a first box-shaped leg, a second box-shaped leg, and a third box-shaped leg. The first box-shaped leg is a long strip box-shaped structure, and the second and third box-shaped legs are both triangular box-shaped structures, and the second and third box-shaped legs are axially symmetrical structures. The present invention can solve the problem of difficult installation and disassembly of the lifting unit assembly of the lifting device, has low overall processing difficulty, and is suitable for large pile-circling cranes with a lifting capacity of more than 2,000 tons.

The embodiment of the invention provides an automobile transport ship deck structure and a ship. According to the deck structure, a deck in the lower area of a cargo hold is in a continuous sheet deck form; a deck in the upper area of the cargo hold adopts a steel framework steel plate deck form; and the structural strength of the hull meets the design requirement. According to the embodiment of the invention, the number of continuous decks at the upper part is reduced, the continuous decks are changed into a frame structure, small thin plates are laid on the frame, and the structure is reinforced, so that on the premise that the structural strength requirement of the ship body is met, the thin plates are prevented from being damaged in the processes of cutting, blanking, assembling, welding, placing, transferring, turning over, hoisting and the like; and a large amount of inevitable repairing work caused by deformation is avoided, so that the construction cost is reduced, the construction time is shortened, and the safety and economical efficiency of the ship structure are improved.

The utility model provides a marine B-15-level fireproof protective lamp shell, which relates to the technical field of protective lamp shells, and comprises a wall body, a main body, a screw rod, a control piece and an insertion piece, a placement cavity is formed in the wall body, and the placement cavity is of a rectangular structure; the main body is arranged in the placing cavity, and the main body is a protective lamp shell body; the screw rods are arranged on the two sides in the main body; the control pieces are arranged on two sides in the rear side of the main body; and the plug-in is arranged in the middle of two sides of the main body. The problem that when an existing marine B-15-level fireproof protective lamp shell is used, installation modes such as a filling and wrapping embedded mode or a bolt fastening mode are usually adopted is solved. The problems that in the prior art, a protective lamp shell installed in an embedded mode and a ship body structure form a whole, the periphery is sealed through sealant or fireproof mud, the fireproof performance is guaranteed, fixing bolts need to be dismantled, sealing materials need to be cleaned in the dismantling process, and the process is tedious are solved.

Disclosed in the present invention is a hull form of a shallow-draft anti-rolling transport vessel. The hull form comprises a stern section, a cargo hold section and a bow section which are connected in sequence, wherein the length of the stern section does not exceed 30% of the overall length of a vessel; the length of the bow section does not exceed 25% of the overall length of the vessel; the stern section uses a multi-hull structure; the cargo hold section uses a monohull structure; the bottom of the cargo hold section is of a double-bottom structure; the bow section uses a catamaran structure; side flare structures are arranged at both sides of the stern section and the bow section; the stern section, the cargo hold section and the bow section share a main deck; and the main deck is a flat grillage. In the present invention, by means of reducing the draft, a wetted surface area and a wave height during high-speed navigation are reduced, thereby greatly reducing wave-making resistance; and the stability and seakeeping performance of the vessel under severe sea conditions are also taken into account.

The invention provides a ship cabin protection device and a ship. The protection device comprises a plurality of connecting shells, the connecting shells are evenly arranged on a hull structure in the vertical direction, the two ends of each connecting shell in the width direction are each provided with a fixing support, and each connecting shell is connected with the hull structure through the two fixing supports; the arrangement area of the connecting shells is determined according to the ship type. The ship comprises a plurality of cabins, and the protection devices are arranged on a ship body structure at the four corners outside each cabin. According to the method, the heeling rate when the ship is damaged is reduced, the overturning risk is reduced, the safety of the ship is improved, ship design, structural weight reduction, transportation economy, safety and other aspects are optimized, and application and popularization are facilitated.

The invention concerns a hull structure (10, 100, 80, 200) for a semi- submersible wind power turbine platform (50), wherein the hull structure (10) comprises: a centre column (4) configured to support a wind power tower (20) provided with a wind turbine (30), the centre column (4) being located in a central region of the hull structure (10, 100); first, second and third buoyancy structures circumferentially distributed around the centre column (4) comprising first, second and third elongated structures (5, 6, 7) connected to the centre column (4) and extending outwards in different radial directions from the centre column (4, wherein the first elongated structure (5) is located at a higher level than the second and / or third elongated structures (6, 7) so that a lower side (5A) of the first elongated connection structure (5) is located above or is substantially aligned with an upper side (6B, 7B) of at least one of the second and third elongated connection structures (6, 7).

The utility model discloses a kind of ship body structure and ship of wave can be pressed, wherein a kind of ship body structure including wave can be pressed comprises: ship body and wave plate. The ship body includes stern plate and ship body, the stern plate is located in the tail of the ship body, the bottom of the ship body has propeller tunnel;The wave plate is set on the stern plate, the wave plate is located in the tail end of the propeller tunnel, part structure of the wave plate overlaps with the stern plate, another part of the wave plate is located in the tail end of the propeller tunnel. The wave plate is set on the stern plate of ship body, simultaneously part structure of the wave plate is located in the tail of propeller tunnel in the bottom of the ship body, so when ship starts, the wave plate can suppress the upward rolling wake formed by propeller rotation, to reduce the resistance formed by propeller rotation to tail wave, to effectively improve the propulsion efficiency of propeller.

A method for removing internal moisture which tends to collect in the hulls, decks, stringers, transoms, bulkheads, spars, and other boat structures. Air injection bores are formed in the core or other boat structure in the vicinity of unwanted moisture. Pressurized injection air is injected into the bores through a plurality of air injection lines running from a source of pressurized injection air. The temperature of the air being injected into bores is varied as a function of the temperature and / or relative humidity of ambient air at or near the bores.

The utility model discloses an LNG ship web accurate positioning auxiliary device which comprises an n-shaped frame, a hand wheel and a fixed magnet block, the hand wheel is in threaded connection with the frame through a positioning bolt at the lower end, and the tip end of the positioning bolt can move up and down perpendicular to the frame through threaded rotation so as to position the center of a web positioning line and the center of a web on a ship body. The web plate is fixed on the ship body, and a fixed magnet block for adsorbing and fixing the frame on the ship body is arranged on the wing plate on one side of the frame. According to the utility model, the positioning bolt is matched with the hand wheel, so that the web is accurately aligned with the hull structure, and the positioning accuracy is improved; meanwhile, through the combination of the magnet blocks and the positioning bolts, the web plate on the inclined surface is effectively fixed, sliding displacement in the welding process is prevented, and the module falling accuracy is improved; in addition, by fixing a magnet block, installation, position adjustment and daily storage of the device are facilitated, space is saved, and devices of different specifications can be carried conveniently to meet the positioning requirements of webs of different widths.

The invention discloses a liquid pulse type water area sand source investigation device and method, and belongs to the field of water engineering sand source investigation. The device comprises a hull structure, a supporting structure, a pipeline structure, a drilling structure and a control system, the drilling structure is driven by multiple strands of independent water flow pulses to vertically penetrate into a sand layer, and an integrated sensor collects sand source mechanical parameters (end resistance, side resistance and pore water pressure) in real time and synchronously recovers a sand sample. The computer control center dynamically adjusts the water flow pulse pressure by collecting drilling structure perpendicularity parameters in real time through the integrated sensor, drilling perpendicularity closed-loop control is achieved, and sand source investigation can be completed without casing running. The problems that traditional drilling depends on a sleeve, an operation window is narrow and labor cost is high are solved, and the method has the advantages of accurate positioning, efficient operation and digital intelligent control and is suitable for various water area sand source investigation scenes.

The invention discloses a visual inspection method for three-dimensional model inspection of a hull structure, and relates to the technical field of hull design, and the method comprises the following steps: extracting and recording part attribute information; the part information is digitally displayed; coloring the structural parts on the three-dimensional model according to the attribute information; checking the consistency of the graph model; and recording information marks on the three-dimensional model and a part attribute information state before color coloring, so that the three-dimensional model can be recovered to an original part state. According to the method, the attribute information of the parts of the three-dimensional model is automatically extracted and displayed on the three-dimensional structural part, and meanwhile, different specifications of information are distinguished in batches with assistance of different colors, so that visual rapid inspection of the three-dimensional model of the hull structure is realized, and the design efficiency and the design quality of the hull are improved.

The utility model provides a kind of pleasure boat, including hull and propeller;The hull is integrally formed integral structure, recess is provided on the outer bottom of hull, recess is located in the middle of hull left and right direction and recess is penetrated hull from front to back, propeller is located at the rear end of recess and is connected with the rear end of hull;When hull floats on water surface, gap is left between the top of recess and water surface, and at least a part of propeller is immersed in water body;The hull in its interior is integrally formed integral structure, to have the advantages that hull structure stability is high and reliability is high, i. e. in the process of pleasure boat driving, the stability and safety of pleasure boat can be improved;And because the setting of recess on the outer bottom of hull, propeller is located at the rear end of recess and is connected with the rear end of hull, so that when hull advances, recess can be supplied water to flow through to reduce the resistance when hull advances, i. e. the smoothness when pleasure boat advances can be improved, and the energy consumption of propeller is reduced.

% Disclosed is a non-probabilistic model-based intelligent reliability assessment method for corrosion damage to a ship hull structure. The method includes: collecting corrosion data of the ship hull structure, and performing interval processing on the data through an embedded data processing system to obtain a mean and deviation of a residual corrosion thickness; determining a resistance of the ship hull structure through hull structure resistance calculation software; measuring external load data such as wind and wave loads, sailing speed, and cargo's center of gravity, and determining external loads based on geometric characteristics of the ship hull structure; establishing a failure function and simulating a failure mode of the ship hull structure in a failure analysis module; and solving a non-probabilistic reliability index of the ship hull structure through an interval variable normalization algorithm, and displaying an assessment result and giving an early warning through a ship safety management system.

The invention relates to the technical field of composite structure ship plate forming, in particular to a basalt fiber composite structure ship plate and forming equipment thereof, the basalt fiber composite structure ship plate comprises a surface protection layer, a middle functional layer, a core supporting layer and a bottom joining layer which are arranged from top to bottom, and the thickness ratios of all the layers are 15%, 30%, 40% and 15% in sequence; and the middle functional layer comprises a flexible heating layer which is electrified to heat. The outer side of the ship plate can be effectively prevented from being frozen when the ship sails in a severe cold area, so that the problems of ship weight increase, gravity center shift, stability reduction, sailing resistance increase, fuel consumption increase, ship structure damage, key equipment damage and the like caused by freezing are prevented, sailing risks are remarkably reduced, and the sailing efficiency is improved. Pollution and damage of accidents such as sinking and oil leakage to the marine environment are reduced, meanwhile, the living environment of sailors is improved, and cargo safety and normal operation of equipment on the ship are guaranteed.

The application discloses a linear ship hull structure of a ship, which comprises a main frame, a keel plate welded with the main frame, and an outer shell plate welded to the outer surface of the main frame, and is further provided with a connecting assembly, a transmission assembly and an auxiliary assembly on the main frame respectively; the connecting assembly comprises a main disc-shaped shaft rotatably arranged in the main frame, a square short rod fixedly installed on the top surface of the main disc-shaped shaft, and an auxiliary bolt in sliding connection with the square short rod; the linear ship hull structure of the ship is characterized in that the connecting assembly is arranged on the main frame, the auxiliary bolt in the connecting assembly is used to fix the deck on the main frame, and the transmission assembly is arranged to connect the plurality of auxiliary bolts on different main frames, so that the plurality of auxiliary bolts can be simultaneously driven to rotate out, and then the plurality of auxiliary bolts can be simultaneously rotated into the deck, the assembly between the deck and the ship hull is rapidly completed, and the use efficiency of the overall device is further improved.

This invention provides a vehicle collision avoidance system for roll-on / roll-off (Ro-Ro) ships, comprising a deck, collision guardrails, multiple lifting cylinders, and a collision avoidance system housing. A collision guardrail receiving opening is provided on the deck. The collision avoidance system housing is a hollow structure with an open upper surface, its upper end fixedly connected to the lower surface of the deck. Multiple collision guardrail support plates are symmetrically fixed inside the housing. A downwardly recessed collision guardrail receiving groove is provided on the upper surface of each support plate. The collision guardrails and support plates are hinged together with a 90° rotational angle. Multiple lifting cylinders are symmetrically spaced within the collision guardrail receiving grooves. The closed end of each lifting cylinder is hinged to the lower end of the inner wall of the housing, and the outer end of the cylinder shaft is hinged to the lower surface of the collision guardrail. This vehicle collision avoidance system for Ro-Ro ships effectively prevents loaded vehicles from shifting during navigation, thus avoiding damage to the ship's structure or other vehicles, and preventing significant property loss.

The utility model discloses a kind of ship gangway devices applied to aquaculture ship, it is related to ship and ocean engineering technical field.The ship gangway device applied to aquaculture ship includes deck, support mechanism, gangway and rope, winch and first steering roller are installed with interval in deck.Support mechanism is fixedly installed in the side of deck, and support mechanism includes vertical rod and the second steering roller of the one end of vertical rod.Gangway is installed with rotating mechanism in the end close to ship body structure.The technical scheme of the utility model is by using winch and first steering roller are installed in deck, then support mechanism is additionally provided in the side of deck, so as to install second steering roller on support mechanism, and pull rod is arranged in gangway, rope is wound on winch, and the remaining structure of rope only needs to pass first steering roller and second steering roller, and is connected with pull rod, path is shortened, transmission efficiency is improved and installation and debugging difficulty are reduced.

The utility model discloses an electric ship, including ship body structure, deck structure, ship bottom support structure, power system and advancing system. The utility model connects bridge through rigid connection piece body and two groups of lower piece, and the ship body torsional rigidity and transverse stability are improved obviously, form the low resistance navigation characteristic of catamaran's particularity, and the space utilization rate is optimized through the functional division of the layered arrangement upper deck and lower deck, and the grid skeleton of the ship bottom support structure is embedded, and the lower piece structure strength is strengthened, and the integrated ballast water tank function enhances the ship counterweight adjusting capacity, and the power system passes through the modularization battery pack, and the battery thermal runaway risk is reduced while ensuring the energy supply stability, and the advancing system adopts the combination scheme of sectional flange connection structure and watertight packaging subassembly, guarantees the transmission stability of drive shaft when the ship body deformation, avoids the water seepage into the transmission mechanism, satisfies the torsional deformation and the propulsion efficiency such as ship operation core demand.

The invention discloses an unmanned ship system for coral reef monitoring, and relates to the technical field of coral reef monitoring unmanned ships, the system comprises a ship body structure, a power system, a control system, a protection system, an observation device and a ground control station; the hull structure adopts a detachable modular design and is used for bearing the power system, the control system, the protection system and the observation equipment and executing a coral reef monitoring task; the power system is used for providing sailing power and electric energy for the unmanned ship; the control system is used for realizing autonomous navigation, path planning and obstacle avoidance of the unmanned ship; the protection system is used for monitoring the operation state of each system of the unmanned ship and realizing fault early warning and emergency disposal; the observation equipment is used for collecting coral reef monitoring data; and the ground control station is used for communicating with the unmanned ship to realize remote control and data interaction. The unmanned ship system is suitable for a coral reef monitoring scene, and the coral reef monitoring efficiency and precision can be improved.

The invention provides hydraulic engineering surveying and mapping equipment with an auxiliary structure, and relates to the technical field of hydraulic engineering detection equipment. The fixing assembly is installed on the top face of the ship body assembly, the connecting assemblies are connected to the two ends of the ship body assembly, the two ends of the ship body assembly are directly connected with the auxiliary assemblies through the connecting assemblies, the ship body assembly is stably floated through the two auxiliary assemblies, and stable operation of the whole device is guaranteed; the connecting assembly is installed at the bottom of the auxiliary assembly, the smashing assembly can smash passing aquatic plant sundries, winding of a propeller by a water tank is avoided, in order to enable the detection assembly to conduct better detection, a cutting plate and a cutting blade are directly installed at the position of the detection assembly, and the problem that waste fishing nets and the like affect a detection part is solved; the problems that when detection is carried out in a large water area, foreign matter is inevitably wound on a ship body, and when a single-ship structure runs and is used, excessive shaking occurs during detection, and detection is abnormal are solved.