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32results about "Hull stems" patented technology

A wave-resistant watertight structure for a ship

The application relates to the technical field of ship engineering, and discloses a wave-blocking water-tight structure for a ship, the ship comprising a bow house deck, the bow house deck being provided with deck machinery, and comprising the following components: a wall plate assembly, which is installed on the bow house deck; and a wave-blocking shell, which is installed on the bow house deck, the rear end of the wave-blocking shell being connected to the wall plate assembly, the wave-blocking shell, the wall plate assembly and the bow house deck jointly defining a protection cavity, and the deck machinery being accommodated in the protection cavity. The wave-blocking water-tight structure for the ship can effectively improve the sealing performance of the bow house deck area, realize all-around protection of the deck machinery, and optimize the buoyancy distribution and the navigation stability of the ship.
Owner:GUANGZHOU WENCHONG SHIPYARD CO LTD

Hull form of shallow-draft Anti-rolling transport vessel

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.
Owner:MARINE DESIGN & RES INST OF CHINA

bow of a ship

The application discloses a ship bow, which comprises a forward inclined part and a bulbous bow part; the bulbous bow part is connected to the lower part of the forward inclined part; the forward inclined part is located above the waterline, and the bulbous bow part is located below the waterline; the intersection line of the outer surface of the ship bow formed by the forward inclined part and the bulbous bow part and the ship centerline is a straight line segment and an arc line segment, the arc line segment is connected to the straight line segment, the straight line segment is located above the arc line segment, the straight line segment is distributed obliquely downward towards the stern, and the arc line segment extends towards the stern. The application solves the problem that the traditional line type cannot simultaneously consider the resistance performance under the two working conditions of ice area navigation and ice-free open water navigation, and effectively improves the comprehensive energy consumption level of the ship on the whole operation route.
Owner:SHANGHAI MERCHANT SHIP DESIGN & RES INST

Ship bow and ship bow construction method

The invention relates to the technical field of ship manufacturing, in particular to a ship bow and a ship bow construction method, the ship bow comprises: a bow section including a bow outer plate, the height of which extends along the height direction of the ship, and the width of the bow outer plate extends along the width direction of the ship; the first broadside section comprises a first broadside outer plate and is arranged on one side of the ship; and the second broadside section comprises a second broadside outer plate and is arranged on the other side of the ship. The ship bow comprises the bow section, the first broadside section and the second broadside section, the plates can be manufactured in an assembly line mode in the thin plate manufacturing stage, the building efficiency is greatly improved, the procedure complexity degree of independent manufacturing due to the fact that the radians of outer plates of different deck layers are different can be greatly reduced, and the manufacturing cost is reduced. The bow outer plate and the broadside outer plate are covered in a large area, so that the completeness of the outer plates is greatly improved, meanwhile, the aloft work of the outer plates is reduced, and the safety of workers in the outer plate connecting process is improved.
Owner:SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD

Shark type unmanned cruise boat

PendingCN120793024AHull stemsVessel partsStrakeMarine engineering
The invention provides a shark type unmanned cruise boat, and relates to the field of ships. The shark type unmanned cruise boat comprises a boat body assembly, an edge strip assembly, a peripheral balloon assembly and a bow cabin filling assembly. The edge strip assemblies are arranged on the outer sides, protruding outwards, of the middles of the two sides of the boat body assembly, and standing platforms are arranged on the upper sides of the edge strip assemblies. The peripheral balloon assemblies are arranged on the two sides of the boat body assembly and the streamline nose cone position of the boat body assembly. The standing platform of the shark-shaped unmanned cruise boat provides a standing position for an operator and also has the capability of improving the stability of the boat body assembly, and the peripheral balloon assembly has the capability of improving the stability of the boat body assembly while playing a buffering role in approaching a main boat, so that the stability of the boat body assembly is improved. And in cooperation with the bow tank filling assembly filled in the fore peak tank and the arc-shaped cover for sealing, the rollover resistance of the boat body assembly is improved, and unmanned remote operation of the boat body assembly is more convenient.
Owner:BENGBU SHENZHOU MACHINERY

Multi-use offshore structure

PendingUS20250313308A1Hull stemsVessel safetySponsonColumn structure
Described is a multi-use offshore structure having a first configuration and a second configuration. The first configuration includes a pontoon base disposed at a lower end of the multi-use offshore structure. A deck is disposed at an upper end of the multi-use offshore structure, and hull column structures extend between the pontoon base and the deck. The second configuration includes the pontoon base, the deck, and the hull column structures of the first configuration. A set of sponsons is formed to be installed on the hull column structures, and a deck expansion unit is connectable with the deck.
Owner:EXMAR OFFSHORE CO

Ship

PendingCN121285504AHull decksHull stemsProwMechanical engineering
A ship is provided with: a hull having a pair of sides; the upper deck is arranged on the ship body; a tank provided in the hull, the upper portion of the tank extending through the center of the upper deck in the width direction of the hull and protruding above the upper deck; a tank cover that is provided on the inner side in the ship width direction with a space therebetween with respect to the pair of broadsides, covers the plurality of tanks from above, and has a top flat surface that extends in the fore-aft direction; and a bow deck formed so as to be continuous from the top flat surface toward the bow side, and extending across the width direction of the ship between the pair of broadsides.
Owner:MITSUBISHI SHIPBUILDING CO LTD

Method for manufacturing a ship bow and ship bow

ActiveCN116902169BHull stemsKeelHull
The application belongs to the technical field of ship manufacturing, and discloses a manufacturing method of a ship bow stem and the ship bow stem. The manufacturing method comprises the following steps: S1, manufacturing a keel web plate, a keel surface plate, a horizontal baffle, a transverse rib plate, a bow stem plate and a ship body plate; S2, manufacturing an auxiliary lining plate with a width smaller than the keel surface plate; S3, welding the auxiliary lining plate on the keel web plate; S4, sequentially welding the horizontal baffle, the auxiliary lining plate and the keel web plate; S5, sequentially welding the transverse rib plate, the auxiliary lining plate and the keel web plate; S6, welding the bow stem plate, the keel web plate, the horizontal baffle and the transverse rib plate; S7, welding the ship body plate, the bow stem plate, the horizontal baffle and the transverse rib plate; and S8, welding the keel surface plate on the auxiliary lining plate. Without the interference of the keel surface plate, the ship body plate has sufficient operation space for effective welding with the horizontal baffle, the transverse rib plate and the bow stem plate, thereby reducing the difficulty in assembly and welding.
Owner:CSSC HUANGPU WENCHONG SHIPBUILDING CO LTD

High-speed wave head piercing ship

The invention provides a high-speed wave head penetrating ship, and relates to the field of ship engineering, the high-speed wave head penetrating ship comprises a high-speed wave head penetrating ship and a stem post, the bottom edge is in a micro-oval shape, the top is in an inverted triangle shape, the high-speed wave head penetrating ship protrudes towards the head, the side view geometric feature is in a cutting edge shape, and the stem post is of a forward-inclining type structure, a backward-inclining type structure and a vertical type structure. According to the method, the high-speed wave piercing head is designed into a specific geometrical shape, the size of the high-speed wave piercing head meets the cross section area curve distribution requirement of the whole ship, the head protruding length is related to the wavelength and the speed, and the cross section fat and thin degree meets the design parameters of the molded line inflow section, so that the wave-making resistance and the shape resistance during ship navigation are effectively reduced; meanwhile, the seakeeping performance of the ship in the waves is improved, the pitching amplitude, wave attack and splashing are reduced, stall in the waves is reduced, the excellent and comprehensive sailing performance is achieved, the dual technical advantages of high sailing speed and high seakeeping performance are achieved, and the ship is particularly suitable for the high-speed ship in the transition state.
Owner:珠海新概念船艇科技有限公司

A method for optimizing the transition area of a ship's stem round bar and outer plate

ActiveCN119262221BHull stemsWatercraft hull designWater flowRound bar
The application belongs to the technical field of shipbuilding, and particularly relates to a method for optimizing the transition area of a round steel and an outer plate of a bow column of a ship. The method comprises the following steps: a round steel is designed and installed at the bow of the ship, so that the round steel is clamped by the outer plates on both sides; the relative position and the welding position of the outer plates and the round steel are adjusted at different height positions of the ship, so that the round steel is smoothly connected with the outer plates at the upper and lower ends thereof; a node is designed in the cross-sectional view of each height position of the round steel, so that the round steel protrudes to match the outer plate line of the ship; the upper and lower ends of the round steel are gradually connected with the outer plates; a wooden mold is made according to the data provided by the node, which is used for checking the shape and data on site; and a plurality of reference lines are designed and positioned, which correspond to the reference lines of the ship body. The method improves the aesthetic appearance of the bow column of the ship, reduces the water flow resistance, and improves the economy of the ship operation.
Owner:GUANGZHOU SHIPYARD INTERNATIONAL LTD

Submersible stern platform provided with openings for recreation

ActiveEP4019389B1Cargo handling apparatusHull stems
The present invention relates to a submersible stern platform (100) equipped with openings for recreation, comprising an opening (150), one or more secondary openings (160) preferably arranged along the vicinity of the opening (150), the opening (150) being reversibly closed by a gate (151) and the secondary openings (160) being reversibly closed by one or more secondary gates (161).
Owner:MANFRINATO CAMBRIA LUCIANA CHRISTINA

High-speed quadruple-hulled vessel

PendingCN122009377AHull stemsVessel partsMechanical engineeringHull
The invention discloses a high-speed quadruple ship structure, and belongs to the technical field of ship engineering. The high-speed quadruple ship comprises two bow and stern catamarans which are the same in size and are symmetrically arranged. Each bow and stern catamaran comprises a bow piece body and a stern piece body, and the bow piece bodies and the stern piece bodies are arranged at intervals in the longitudinal direction; a continuous main deck is arranged above the two bow and stern catamarans, the main deck covers a central area defined by the four sheet bodies, and the sheet bodies are connected with the main deck through independent damping structures. Through differentiated design of the front sheet body and the rear sheet body and optimized sheet body layout, on the premise that the displacement is kept equivalent to that of a catamaran, the total width of the ship body is remarkably increased, the transverse stability and the deck area are improved, meanwhile, the hydrodynamic performance is optimized, the high-speed high-sea-condition maintaining capacity is high, the wave impact load is greatly reduced through a damping system, and the service life of the catamaran is prolonged. Hull movement is inhibited, and good compatibility of high navigational speed and high stability is achieved; and rapid large-scale construction is facilitated.
Owner:JIMEI UNIV

Novel green environment-friendly sunken inland river traffic patrol ship

The utility model discloses a novel green and environment-friendly sunken inland river traffic patrol ship which comprises a main deck, a passenger cabin and a propelling system. The passenger cabin is embedded in the main deck; the bottom deck of the passenger cabin is positioned below the main deck; the top of the passenger cabin is positioned above the main deck; the propulsion system is an electric propulsion system; and a battery cabin is arranged below the main deck. The utility model has the advantages of environmental protection, zero emission, low noise and low vibration; wind resistance can be reduced, and energy consumption is reduced; and the passing requirement that most of bridges in inland water areas are low is met.
Owner:SHANGHAI MERCHANT SHIP DESIGN & RES INST

Multi-use offshore structure

PCT designated stageWO2025217323A1Hull stemsVessel safetySponsonColumn structure
Described is a multi-use offshore structure having a first configuration and a second configuration. The first configuration includes a pontoon base disposed at a lower end of the multi-use offshore structure. A deck is disposed at an upper end of the multi-use offshore structure, and hull column structures extend between the pontoon base and the deck. The second configuration includes the pontoon base, the deck, and the hull column structures of the first configuration. A set of sponsons is formed to be installed on the hull column structures, and a deck expansion unit is connectable with the deck.
Owner:EXMAR OFFSHORE CO

Air cushion suspension ship with lift low-wind-resistance bow body

The invention belongs to the technical field of air cushion suspension transportation equipment, and relates to an air cushion suspension ship with a lift low-wind-resistance bow body, the air cushion suspension ship comprises a ship body main frame, an arc streamline bow body and a stern body, the arc streamline bow body and the stern body are symmetrically arranged at the two ends of the ship body main frame, the sweepback angle of the front edge of the bow is 17-18.3 degrees, and the downward inclination angle of the lower edge of the bow is 5-7 degrees to form a front air seal. An integrally-formed air cushion flow guide enclosure shell is arranged on the lower portion of the ship body main frame, the air cushion flow guide enclosure shell, the ship head and the ship tail define an air cushion positive pressure cavity, and a ground effect air cushion is formed through air supply of front and rear duct booster fans to achieve non-contact suspension. The system further comprises a splayed symmetrical four-rotor power system, and four groups of rotor assemblies are fixed through vertical left and right motor mounting brackets to form a main propulsion and posture adjusting unit. Wind resistance is reduced and lifting torque is generated through the bow at a specific angle, air leakage is restrained in cooperation with an air seal structure, and low-wind-resistance, zero-friction suspension and high-stability control are achieved.
Owner:CHONGQING UNIV OF TECH

Submersible stern platform provided with openings for recreation

The present invention relates to a submersible stern platform (100) equipped with openings for recreation, comprising an opening (150), one or more secondary openings (160) preferably arranged along the vicinity of the opening (150), the opening (150) being reversibly closed by a gate (151) and the secondary openings (160) being reversibly closed by one or more secondary gates (161).
Owner:MANFRINATO CAMBRIA LUCIANA CHRISTINA

Stem structure for cargo ship

The stem structure comprises a stem body and a pressure relief plate connected to the front side of the stem body, a plurality of transverse supporting plates are arranged on the inner side of the stem body, a supporting rod is connected between every two adjacent transverse supporting plates, and a plurality of pressure relief holes are formed in the pressure relief plate. The outer surface of the pressure relief plate is detachably connected with a titanium alloy filter screen covering the pressure relief holes, a filter mesh corresponding to the titanium alloy filter screen is arranged between the pressure relief plate and the titanium alloy filter screen, the filter mesh comprises a plurality of grooves in one-to-one correspondence with the pressure relief holes, and the grooves bend towards the corresponding pressure relief holes and are arranged in the corresponding pressure relief holes. The cargo ship has the advantages that in the driving process of the cargo ship, the titanium alloy filter screen and the filter screen piece are arranged to avoid the situation that the pressure relief holes are prone to being blocked by marine organisms or sundries and cannot effectively divide water flow of the ship bow, the frequency that the pressure relief holes need to be cleaned by sailors due to blockage is reduced, and the maintenance workload and time are reduced.
Owner:JIASHAN JINSHENG SHIP REPAIR YARD CO LTD

Gravity and buoyancy balanced type telescopic bulbous bow device and control method

The invention discloses a gravity and buoyancy balanced type telescopic bulbous bow device which comprises a bulbous bow and an adjusting module, the bulbous bow comprises a tail plate, a connecting structure and a telescopic body, the tail plate is connected with the telescopic body through the connecting structure, the adjusting module comprises a guide rail, an electric trolley and limiting blocks, the limiting blocks are installed on the upper surface and the lower surface of a fore peak, and the guide rail is connected with the electric trolley. A guide rail is arranged between the limiting block and the anti-collision bulkhead, an electric trolley is arranged on the guide rail, the tail plate is connected with the electric trolley, and the electric trolley drives the tail plate to move between the anti-collision bulkhead and the limiting block. The bulbous bow is designed to be in a gravity and buoyancy balance type, meanwhile, the control system is used for analyzing the ship navigation state, the length of the bulbous bow is automatically adjusted, the adaptability of the bulbous bow to different navigation states is effectively improved, and the wave-making resistance reducing effect of the bulbous bow is improved.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP

Water-entry load-reducing structure and attitude adjusting method for a watercraft

ActiveCN119734551BHull stemsConvertible vehiclesUnderwater navigationWater flow
The application discloses a water-entry load-reducing structure and an attitude adjusting method of a navigation body, relates to the technical field of water-entry load-reducing structures of navigation bodies, and solves the problems of poor underwater navigation stability of a conical-head navigation body, tail slapping of the navigation body, and even overturning of the navigation body. The multi-cone combined head is arranged at the top end of a column body; the multi-cone combined head comprises a central conical head and a plurality of circumferential conical heads which are uniformly distributed around the central conical head; a plurality of through holes are arranged in the column body; the top of the through hole is arranged between the central conical head and the plurality of circumferential conical heads and is uniformly arranged around the central conical head, and the bottom of the through hole is arranged on the side of the column body; and a control device arranged in the column body controls the opening and closing of the through hole. The through hole arranged in the column body can relieve the slamming effect of the head of the navigation body on water and expel water flow in the water-entry stage, so that the load-reducing purpose is achieved; and the opening and closing of the through hole is controlled underwater, so that the attitude of the navigation body is adjusted.
Owner:HARBIN ENG UNIV

Vessel

PCT designated stageWO2025185769A8Hull interior subdivisionHull stemsPropellerHull
A vessel, comprising a deckhouse (3), wherein ballast water tanks (7) are arranged on two sides below the deckhouse (3); a gravity tank (8) is arranged in the middle between the ballast water tanks (7) on the two sides; an air chamber (9) is provided between each of the ballast water tanks (7) on the two sides and the gravity tank (8); a watertight compartment (23) is provided below the tank bottom of each ballast water tank (7); a pressure-boosting bulkhead (48) is provided below each watertight compartment (23); a vertical surface of each pressure-boosting bulkhead (48) is provided with a pressure-equalizing opening (17); an arched gravity block (14) is provided below each pressure-boosting bulkhead (48); flow diversion plates (4) are arranged on a bow (2) in a manner of extending downwards and backwards; a dual-flow conversion plate (18) is arranged between the tank bottom of the gravity tank (8) and an enclosure plate; a pressure-balancing pocket (49) is provided on the inner lower edge of each air chamber (9) from an intersection point in the air chamber (9) below an outer hull board (6) of the bow (2) backwards to a junction point at the compartment bottom of the corresponding watertight compartment (23); and a combination of a dual-flow conversion force and propellers (25) is used for improving the traveling speed of the hull (1) of a flat structure.
Owner:HU XIANGYU +1

Stable telescopic bulbous bow

The bulbous bow is arranged on the lower side of a ship bow, a bulbous bow watertight compartment sunken towards the inner side of a ship body is arranged on the lower side of the ship bow in the X direction, and the bulbous bow comprises a bulbous bow outer plate, a positioning module and a driving module; the bulbous bow outer plate arranged in the bulbous bow watertight compartment can extend out of or retract into the bulbous bow watertight compartment along the X direction under the action of the driving module; the positioning module comprises a positioning rod and a limiting block, one end of the positioning rod is fixed to the stern end of the bulbous bow outer plate in the X direction, the other end of the positioning rod is arranged in the ship body, the limiting block is perpendicular to the positioning rod and fixed in the ship body, and the positioning rod sequentially penetrates through the bulbous bow watertight compartment and the limiting block in the direction from the outside to the inside of the ship. A limiting hole is formed in the limiting block, and the positioning rod penetrates through the limiting hole and can slide in the limiting hole in the X direction. The bulbous bow is high in structural property and stability and can stably stretch out and draw back under various sailing conditions, so that the wave-making resistance of the ship is always the minimum under the variable sailing speed.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP

Omega-shaped scissor bow

PendingCN120589124AHull stemsWatercraft hull designWater flowProw
The invention relates to the technical field of ship engineering, in particular to an omega-shaped scissor prow which comprises a streamline submerged body, a rear-tilting lower hull and a front-tilting upper stem post, the lower end of the front-tilting upper stem post and the upper end of the rear-tilting lower hull intersect at one point above a design waterline, the front-tilting upper stem post tilts towards the upper right from the intersection point, and the lower end of the front-tilting upper stem post and the rear-tilting lower hull intersect at one point above the design waterline. The rear-tilting lower ship body tilts to the lower right from the intersection point, and the rear-tilting lower ship body and the rear-tilting lower ship body form'lt; the invention discloses a prow. According to the omega-shaped scissor-shaped stem, through a special structure formed by the streamline diving body, the backward tilting type lower hull and the forward tilting type upper stem post, the resistance performance and the seakeeping effect are remarkable, and meanwhile the omega-shaped scissor-shaped stem has the advantages of being good in resistance performance, small in head wave slapping, smooth in water flow, small in vertical heaving, gentle in pitching, not prone to wave rising on a deck and the like; and the comprehensive technical performance is excellent.
Owner:珠海新概念船艇科技有限公司

Portable hydrological water resource surveying device

ActiveCN224375824UHull stemsVessel parts
The utility model relates to the technical field of hydrology survey, disclose a kind of portable hydrology water resource survey device, including ship body, ship body both side walls are equipped with bow structure, the lower inner wall center of ship body is fixedly connected with survey structure at one side, the lower inner wall center of ship body is fixedly connected with battery module at both ends, the upper end surface of battery module is equipped with PLC integrated board at front, the bow structure includes two coil springs, two The upper end surface of two coil springs is fixedly connected with bow gasbag, the other end of two bow gasbag is fixedly connected on the both side walls of two ship bodies respectively. In the utility model, the bow structure is used after being inflated by two bow gasbags, and after use, the air in the bow gasbag is released, and the two bow gasbags are wound up by two coil springs, so that it is convenient to carry.
Owner:曲阜市水利事业发展中心

Bow thrusting curved surface type flow guide grille and ship

The utility model provides a bow thruster curved surface type flow guide grille and a ship, the flow guide grille comprises a vertical flat steel bar, the outer edge line of the vertical flat steel bar is matched with the line type of a ship body outer plate at the position where the vertical flat steel bar is located; the outer edge lines of the longitudinal flat steel bars are matched with the line type of the hull outer plate at the positions where the longitudinal flat steel bars are located, and the longitudinal flat steel bars and the vertical flat steel bars are perpendicularly crossed to form a curved surface latticed structure; the connecting eye plates are arranged at the two ends of the vertical flat steel bars and the longitudinal flat steel bars, and the outer edge lines of the connecting eye plates are matched with the line type of the hull outer plate. The outer edge line of the curved grid is the same as the line type of the outer plate of the ship body, so that the outer edge line of the curved grid is smooth and consistent with the line type of the outer plate of the ship body, the spatial distance between the traditional planar flow guide grid and the outer plate of the ship body is eliminated, the retention of flow choking obstacles is reduced, and the hydrodynamic performance of the ship is improved.
Owner:JIANGSU YANGZI MITSUI SHIPBUILDING CO LTD

Double-bow icebreaker structure for polar region mining

The invention provides a double-bow icebreaker structure for polar region mining, and belongs to the field of ship design and manufacturing. The problems that in the prior art, an icebreaker is large in resistance and poor in economical efficiency when sailing in open water, and a traditional single prow design cannot meet the requirements for long-distance sailing economical efficiency and high-strength icebreaking operation are solved. The ship comprises a ship body, a composite prow structure and a ballast water system, the composite prow structure is arranged at the prow of the ship body, and the ballast water system is arranged in the ship body and used for adjusting ballast water distribution in the ship body; the combined type stem structure comprises an icebreaking bow and a bulbous bow, the bulbous bow is arranged at the bottom of the icebreaking bow, and the ballast water system comprises a head ballast tank, a tail ballast tank and a pipeline for connecting the two ballast tanks. The integrated design of the double-function prow is adopted, a complex mechanical deformation mechanism is avoided, switching of working modes can be achieved only through a reliable ship control means of adjusting ballast water, the structure is simple, operation is convenient, and the maintenance cost is low.
Owner:HARBIN ENG UNIV

Bow sunk LNG carrier structure

The application discloses a bow sunken LNG ship structure, which comprises a main deck, an aft deck, a bow sunken deck, a ladder, a crane, and cargo cabin outer inclined roofs, wherein the aft deck is arranged at the aft section of the ship, the bow sunken deck is arranged at the bow section of the ship, the main deck is arranged between the bow sunken deck and the aft deck, the height of the main deck is higher than that of the bow lower deck, the ladder is arranged at the position close to the main deck of the bow lower deck, the crane is arranged at one end of the main deck close to the bow lower deck, the bow sunken deck extends from the position close to the aft end of the No.1 cargo cabin to the bow of the ship, and the cargo cabin outer inclined roofs are arranged on the left and right sides of the liquid cargo dome of the No.1 cargo cabin in the direction of the left and right sides. The main deck at the position close to the aft end wall of the No.1 cargo cabin is vertically sunken to form the bow sunken deck, the empty ship mass is effectively reduced, the structural parts are reduced, and the lightweight design of the ship is realized.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP

Vessel

PCT designated stageWO2025185769A1Hull interior subdivisionHull stemsPropellerHull
A vessel, comprising a deckhouse (3), wherein ballast water tanks (7) are arranged on two sides below the deckhouse (3); a gravity tank (8) is arranged in the middle between the ballast water tanks (7) on the two sides; an air chamber (9) is provided between each of the ballast water tanks (7) on the two sides and the gravity tank (8); a watertight compartment (23) is provided below the tank bottom of each ballast water tank (7); a pressure-boosting bulkhead (48) is provided below each watertight compartment (23); a vertical surface of each pressure-boosting bulkhead (48) is provided with a pressure-equalizing opening (17); an arched gravity block (14) is provided below each pressure-boosting bulkhead (48); flow diversion plates (4) are arranged on a bow (2) in a manner of extending downwards and backwards; a dual-flow conversion plate (18) is arranged between the tank bottom of the gravity tank (8) and an enclosure plate; a pressure-balancing pocket (49) is provided on the inner lower edge of each air chamber (9) from an intersection point in the air chamber (9) below an outer hull board (6) of the bow (2) backwards to a junction point at the compartment bottom of the corresponding watertight compartment (23); and a combination of a dual-flow conversion force and propellers (25) is used for improving the traveling speed of the hull (1) of a flat structure.
Owner:HU XIANGYU +1

Ship bow image supporting structure and assembling method

The invention discloses a ship bow image supporting structure and an assembling method. The supporting structure comprises a steel supporting seat box used for being embedded into a ship bow image and fixedly connected with a ship stem post. The supporting seat box body is defined by an upper end face steel plate, a lower end face steel plate, a left end face steel plate, a right end face steel plate and a front end face steel plate, and the material yield grade and the plate thickness of the supporting seat box body are equal to or larger than the material yield grade and the plate thickness of a ship stem column area outer plate respectively. A drain hole is formed in the lower end face steel plate, a hand hole is formed in the front end face steel plate, and at least two locking holes are formed in each of the left end face steel plate and the right end face steel plate; the peripheries of the upper end face steel plate, the lower end face steel plate, the left end face steel plate and the right end face steel plate are all welded in a full penetration welding mode, the front end face steel plate is positioned through a steel liner arranged in the supporting seat box body, and the periphery of the front end face steel plate is welded in a single-face full penetration welding mode. The installation stability of the ship bow image is greatly improved.
Owner:GUANGZHOU SHIPYARD INTERNATIONAL LTD

A design method of a ship bow workpiece and a ship

The application provides a ship bow workpiece design method and a ship, and the design method comprises the following steps: S1, expressing the structure of the ship bow by a transverse section, a longitudinal section and a horizontal section, and determining the structure line type of the ship bow; S2, establishing an operation benchmark for judging the narrow space construction of the ship bow; S3, determining the boundary of the narrow space in the transverse section and the horizontal section; S4, determining the intersection point of the boundary and the hull plate, and determining the spline curve of the workpiece according to the intersection point; S5, establishing the hollowing benchmark inside the workpiece according to the spline curve, hollowing the inside of the workpiece, and completing the design of the workpiece. The ship bow workpiece manufactured by the design method of the application meets the dual standards of structural lightweight and structural strength, especially in the case of the ship bow workpiece being a cast steel piece, the weight of the ship bow is greatly reduced, the transportation cost of the ship is reduced, and the transportation efficiency of the ship is improved.
Owner:JIANGNAN SHIPYARD (GRP) CO LTD

Ship head end structure

The utility model relates to the technical field of ships, in particular to a ship head end structure which comprises a deck and a head end assembly, the head end assembly comprises a deck longitudinal bone, a transverse buckling rib, a ship bottom longitudinal bone and a supporting piece, and the transverse buckling rib is used for replacing a transverse strong frame structure in the prior art. The intersecting distance of the deck longitudinal bone and the ship bottom longitudinal bone is prolonged to be matched with the supporting piece for auxiliary supporting, so that the span moment of the ship bottom longitudinal bone and the deck longitudinal bone is reduced, the deck structure is close to the outer plate structure, the transverse width is increased through the transverse buckling ribs, hole forming is more convenient, the inner cavity space is increased, and the structure is more compact. Therefore, the problems that according to an existing ship head end structure, the ship head end is in a sharp and thin line shape, the space of an inner cavity of the ship head end is usually narrow, and follow-up construction operation is very difficult are solved.
Owner:SHANGHAI OUYANG OCEAN ENG GRP CO LTD