192 results about "Hull structure" patented technology

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.

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 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 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 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.

% 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.

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 ocean container transport ship design system and method based on digital twinning, and belongs to the technical field of ship engineering and digital twinning. The method aims at solving the technical problem that traditional finite element analysis cannot provide real-time feedback due to massive working condition combinations in the design process of the ocean container transport ship. The system and the method comprise the following steps: constructing a standardized topological domain for unifying different ship type variants; a high-fidelity full-component stress tensor sample set under the working condition of a small number of anchor points is calculated in an off-line mode; performing orthogonal decomposition on the sample set, and extracting a group of orthogonal stress bases carrying dimensional information; in the design interaction stage, the system predicts a dimensionless modal coefficient through a pre-training model according to design parameters such as a hull geometric variant, a stowage scheme and a sea condition input by a designer, performs linear weighted stacking on the dimensionless modal coefficient and a stress base, reconstructs a full-field stress tensor of a hull structure in real time, and generates a visual evaluation result.

[Problem] To provide an index-based hull structure manufacturing method, design method and design program with which it is possible to prevent a breach of a cargo oil tank and oil outflow, or to reduce the amount of outflow, in the event of running aground. [Solution] The present invention includes: a step for selecting a steel plate to be applied to a hull structure 10 of a ship; a step for quantifying a stress-strain relationship of the steel plate; a step for using the stress-strain relationship to execute a grounding analysis of the hull structure 10 to which the steel plate is applied, to obtain a calculated value of a critical grounding speed; a step for determining a required value of the critical grounding speed; and a step for evaluating a grounding resistance of the hull structure 10 on the basis of the calculated and required values of the critical grounding speed. The hull structure 10 for which it has been determined, from the evaluation result of the grounding resistance, that the required value is satisfied, is manufactured.

The invention relates to the technical field of pre-outfitting part mounting structures, in particular to a stable ship pre-outfitting part connecting structure which comprises a ship body structural part, the ship body structural part is welded to a ship body, the ship body structural part and the ship body are of an integrated structure, and a support used for being connected with a pre-outfitting part is mounted on the ship body structural part in an inserted mode. An inserting hole is formed in the center of the bottom of the support, clamping grooves and direction grooves are formed in the outer side wall, located in the ship body structural part, of the support, the clamping grooves are of an annular structure, and the two sets of direction grooves are symmetrically formed. The ship body structural part integrated with the ship body is arranged as the base, the pre-outfitting part is installed in an inserted connection mode, the rigidity after installation is effectively guaranteed, meanwhile, vibration, impact and dynamic loads can be effectively resisted due to the addition of the buffering cushion, the loosening risk is remarkably reduced, the stability close to welding is achieved, and the service life of the ship body is prolonged. And due to the use of the hoop, the stability of the pre-outfitting piece after installation is further ensured.

The utility model relates to the technical field of new energy ships, and particularly discloses a closed cabin structure of a new energy ship. The closed cabin structure comprises a cabin body arranged on the new energy ship; the active noise reduction assembly is arranged on the cabin body; comprising a detection cavity arranged on the inner wall of a cabin body, an audio detection element arranged on one side of the detection cavity, an audio element arranged on one side of the detection cavity and facing the other side of the detection cavity, a circuit board for receiving the audio detection element and controlling the audio element, and a power supply element for supplying power to the audio detection element and the audio element, by adopting the mode of combining active noise reduction and cabin structure passive noise reduction, the noise reduction effect in the cabin is improved on the premise of ensuring various sealing performances of the new energy ship, and the situation that the hearing of sailors is damaged due to the fact that a motor, a generator and the like can generate high noise in the operation process and are exposed in a high-noise environment for a long time is avoided. And noise transmission is effectively reduced, so that sailors can work in a relatively quiet environment.

The invention discloses a visual guidance control method for an underwater hull cleaning robot, and relates to the technical field of visual guidance, and the method comprises the steps: obtaining underwater original images of the vertical and inclined surfaces of a broadside hull, and carrying out the longitudinal partitioning of the images along the broadside height based on the gravity direction; in combination with partition brightness distribution prior, adaptive exposure compensation is performed on each partition, brightness mutation of adjacent partitions is eliminated through longitudinal consistency constraint, and a broadside image with continuous brightness is generated; on this basis, hull weld joint and reinforcing rib structure feature lines are extracted, a visual reference coordinate system consistent with the hull structure is constructed, then real-time deviation correction control is conducted on the cleaning robot according to the visual offset, and the cleaning robot is guided to execute a stable and continuous broadside cleaning path in the direction of the structure feature lines; the problems of visual distortion, unstable structural feature recognition and easy deviation of a cleaning path caused by non-uniform illumination and posture change in an underwater broadside cleaning scene are solved.

The application discloses an underwater vehicle, a flexible platform connecting structure and a manufacturing method thereof. The flexible platform connecting structure of the underwater vehicle comprises a rigid platform plate, an upper arc-shaped plate and a flexible supporting structure. The flexible supporting structure comprises a supporting plate and elastic plates. A slot is formed on the bottom end face of the rigid platform plate. The bottom end of the upper arc-shaped plate is fixedly connected with the top end face side of the rigid platform plate. The top end of the upper arc-shaped plate is fixedly connected with the shell plate of a pressure-resistant hull. The supporting plate is accommodated in the slot and is arranged with a gap from the bottom wall of the slot. The end of the supporting plate is fixedly connected with the shell plate of the pressure-resistant hull. The two side walls of the supporting plate are outwardly extended with a plurality of elastic plates. The end of the elastic plate is fixedly connected with the slot side wall of the rigid platform plate. The flexible platform connecting structure can adapt to the shrinkage deformation of the pressure-resistant hull structure and will not generate structural noise.

The utility model provides a bulk cargo ship with side-mounted cargo winch, and belongs to the shipbuilding technical field. The utility model discloses including ship body structure, the ship body structure is equipped with a plurality of cargo holds along the length direction, the top of cargo hold is equipped with hatch coaming, is provided with the folding hatch cover on the hatch coaming, the main deck of ship body structure is installed with a plurality of Z type's crane base, is installed with the cargo winch on the crane base, the crane base can expand the hoisting range of cargo winch. The utility model can install the crane on the side deck of bulk cargo ship, and satisfies the hoisting demand of all cargo holds.

The utility model belongs to the technical field of ships, and discloses a battery discarding device and a ship, the battery discarding device comprises a hanging bracket, a hanging arm and a hanging tool, the hanging bracket is used for being erected above a battery box placed on a deck, the hanging arm is movably connected to the hanging bracket so that the hanging arm can be switched between a hoisting position and a discarding position, and the hanging tool is used for hoisting the battery box. The lifting appliance is connected to the output end of the lifting arm, the lifting appliance can ascend and descend in the vertical direction, and when the lifting arm is located at the lifting position, the lifting appliance is located over the battery box placed on the deck; when the suspension arm is located at the discarding position, the lifting appliance can stretch out of the deck in the first horizontal direction. According to the battery discarding device and the ship provided by the utility model, the battery box with abnormal conditions can be timely hoisted out of the ship body and discarded into the sea, so that the damage to the ship body structure, equipment and the personal safety of sailors caused by fire or explosion of the battery box is effectively reduced, and the loss caused by accidents is greatly reduced.

The utility model discloses an underwater hull structure non-contact ultrasonic detection support, which comprises an installation fixing frame, two positioning insertion rods are inserted in the top of the installation fixing frame in a penetrating manner, the top ends of the two positioning insertion rods are fixedly connected with a first support plate, and the upper surface of the first support plate is fixedly connected with two vertical upright rods. According to the utility model, one end, far away from the driving rod, of the positioning clamping rod is clamped with the corresponding positioning insertion rod, and then the second bolt is tightened, so that the second bolt is in threaded connection with the mounting fixing frame, the rotating disc is fixed, and the positioning insertion rod is limited; during disassembly, a second bolt is screwed to be separated from the mounting fixing frame, then a rotating disc is rotated, a driving rod drives a positioning clamping rod to move, the positioning clamping rod is separated from a positioning insertion rod, and then the reflection probe and the receiving probe can be taken down, operation is easy and convenient, and disassembly and assembly are convenient.

The invention discloses a gantry type online quality detection device and method for complex weld joints of a hull structure, and relates to the technical field of ship manufacturing. The system comprises an X-axis movement module, a Y-axis movement module arranged on the X-axis movement module, a Z-axis movement module arranged on the Y-axis movement module, a six-axis robot arranged at the tail end of the Z-axis movement module and a welding seam quality detection module arranged at the tail end of the six-axis robot. Through cooperative movement of the X-axis movement module, the Y-axis movement module, the Z-axis movement module and the six-axis robot, the weld joint quality detection module moves in the X-axis direction, the Y-axis direction and the Z-axis direction and then reaches the weld joint position needing to be detected for weld joint quality detection. According to the invention, the complex welding seam of the hull structure can be automatically detected, the manual labor intensity is effectively reduced, and the detection efficiency and accuracy are improved.

This invention discloses a marine zipper-type opening and its opening method. By setting a pre-cut tear line at the opening position of the hull structural parts, and opening an internal hole on the plate surface within the pre-cut tear line to reserve a deformation buffer zone inside the pre-cut tear line, it can not only reduce the difficulty of opening the hull structural parts in the later stage and ensure the convenience of the later opening construction, but also ensure the overall rigidity of the opening plate surface of the hull structural parts. This avoids the deformation of the opening position of the hull structural parts during the placement and segmented construction process, effectively controls the deformation of the hull structural parts, reduces the difficulty of opening the hull structural parts in the later stage, saves the opening construction cost, and improves the construction efficiency.

The application provides a quick installation method applied to ship body structure to-be-assembled parts, and particularly relates to the technical field of quick positioning of ship body assembly parts. The installation method comprises the following steps: according to design drawings, positioning lines and / or auxiliary lines and / or check lines are drawn according to different types of ship body structure to-be-assembled parts; based on the positioning lines or auxiliary lines drawn for the to-be-assembled parts, the assembly or fixation between the to-be-assembled parts of the ship body structure is completed; according to the auxiliary lines or check lines, the positions of the assembled parts after the assembly or fixation are checked, and the precision of the assembly alignment is checked. The application can be applied to the quick positioning and installation and the precision checking of the alignment of various main to-be-assembled parts of the ship body structure, and effectively solves the problems that the number of lines drawn in the traditional positioning method is too large, especially when special angles or complex structures are encountered, the line drawing is inconvenient, and the accuracy of the installation and alignment cannot be guaranteed.

The invention provides a lifelong digital health management system applied to a container ship, and the system comprises a data collection module which is used for collecting health parameter data of in-situ measurement of the container ship; the data transmission module is connected with the data acquisition module and is used for storing and transmitting the health parameter data; the data analysis module is connected with the data transmission module and used for analyzing the health parameter data to obtain the corresponding ship body residual strength; the ship body diagnosis module is respectively connected with the data transmission module and the data analysis module and is used for analyzing the health parameter data and the ship body residual strength to obtain a corresponding ship body safety assessment result; and the visualization module is respectively connected with the data analysis module and the ship body diagnosis module and is used for visually displaying the ship body residual strength and the ship body safety evaluation result. The method has the beneficial effects that the analysis accuracy of the hull residual strength can be improved, and the safety of the hull structure can be accurately diagnosed.

The utility model relates to the technical field of ship engineering, in particular to a multi-cabin modular hull structure which comprises a hull, an embedded structure is mounted in the hull and comprises a limiting groove and a limiting block, the limiting block slides in the limiting block, and a second support is fixedly connected to one end of the outer side of the embedded structure. An installation foundation can be provided for the second rotating disc through the embedded structure, the second rotating disc is fixedly connected with the drive plate, the drive plate is connected with the torsion spring, the torsion spring provides torsion, the second rotating disc is connected with the first rotating disc in a clamped mode, and the first rotating disc is rotationally connected with the first support. The torsion spring can drive the second rotating disc to rotate through torsion, so that the second rotating disc can drive the first rotating disc clamped with the second rotating disc to rotate, and the technical problem that the first rotating disc and the second rotating disc synchronously rotate when needed can be solved through torsion transmission of the torsion spring.

A hull structure for a semi-submersible wind power turbine platform and a method for loading a set of such hull structures onto a semi-submersible cargo carrying marine vessel. The hull structure includes first, second and third buoyant stabilizing columns extending in a substantially vertical direction; and first and second elongated submersible buoyant pontoon structures extending in a substantially horizontal direction. The hull structure generally has a V-shape in the horizontal plane with the first and second pontoon structures forming legs in the V-shape and with the second column located where the legs meet. The hull structure is arranged so as to exhibit: i) a first angle in the horizontal plane between a central longitudinal axis of the first pontoon structure and a central longitudinal axis of the second pontoon structure; and ii) a second angle in the horizontal plane between a) a first imaginary line between a central point of the first stabilizing column and a central point of the second stabilizing column and b) a second imaginary line between the central point of the second stabilizing column and a central point of the third stabilizing column, wherein the second angle is larger than the first angle.

The application relates to a common base of a ship main propelling device and a mounting method, a first platform has an upper panel and a lower panel, the upper panel is used for mounting a power output system of the ship main propelling device, and the lower panel is used for mounting a vibration isolator; a second platform has a panel used for mounting an intermediate support, and the panel is provided with adjusting pads for supporting the intermediate support; the flatness of the upper panel and the panel is not more than 0.02 mm, and the roughness is Ra3.2; the flatness of the lower panel is not more than 0.05 mm, and the roughness is Ra12.5; S1, the power output system is mounted on the upper panel of the first platform; during the mounting, the power output system, the intermediate support, the vibration isolator and an elastic coupling are sequentially mounted; a main propelling device base is welded on a ship body structure, and the common base of the ship main propelling device is mounted on the main propelling base. The common base of the ship main propelling device supports the intermediate support and the power output system at the same time, and the influence of ship body structure deformation on the centering of the main propelling device is reduced.