26results about "Hull shells" patented technology

The invention discloses a non-pressure-resistant shell main structure of an unmanned underwater vehicle and a machining method, and relates to the technical field of underwater vehicles. The device comprises a lower shell and frameworks, the lower shell and the frameworks are fixedly connected in an up-and-down buckling mode, a transverse framework and a longitudinal framework are fixedly connected in a mutually perpendicular mode, and metal embedded parts are bonded to the positions, where equipment and a floating material body are installed, of the transverse framework and the longitudinal framework; the shell and the framework are both made of carbon fiber composite materials, a buoyancy material is arranged in the space formed by the shell and the framework, the buoyancy material, the shell and the framework form an integral revolving body streamline structure, and during processing, a modified epoxy gel coat is adopted, so that the performance of the shell is improved by means of blocking of nano-montmorillonite, wear resistance of silicon carbide and toughening of polyurethane microspheres. Water-resistant, wear-resistant and impact-resistant surface protection is provided for the shell, and underwater erosion and collision are resisted; the wettability and binding force with the carbon fiber cloth are improved by adopting the modified epoxy resin, and the mechanical bearing capacity of the composite material is enhanced.

The invention discloses a bionic robotic fish based on magnetic driving and a propelling method thereof, and relates to the technical field of fish bionics, the bionic robotic fish is composed of a bionic fish body, a magnetic driving device and a fish tail, and the magnetic driving device drives the fish tail to swing back and forth to propel the fish body to advance; according to the magnetic driving device, the magnetic field direction of the electromagnetic module is periodically changed through the control module, the magnetic driving device interacts with the permanent magnet module to generate torque, the swing module and the fishtail are driven to perform efficient and smooth reciprocating motion, and the driving mode is simple in structure and higher in reliability, durability and maintainability; the crescent-shaped structure of the fish tail simulates the swimming mechanism of real fishes, strong propulsive force is provided, and the bionic fish body is completed according to bionics, so that the bionic fish body has excellent adaptive capacity and flexible movement performance in complex submarine topography and high-current environment, and can easily pass through narrow space or execute fine operation.

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.

[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 application belongs to the technical field of military ship plates, and discloses a ship detachable plate which can be separately disassembled, comprising a ship body surface, a ship detachable single plate being tightly and clippably connected to the ship body surface, a group of telescopic rods being fixedly connected to the inner walls on both sides of one end of the ship detachable single plate, and a rubber clamping cylinder being fixedly connected to the other end of the two groups of telescopic rods. The ship detachable single plate is placed on the U-shaped clamping rod on the ship body surface by artificial operation, the rubber clamping cylinder is clamped on the U-shaped clamping rod, and the ship detachable single plate is temporarily limited. When the ship detachable single plate clamped and installed on the surface of the ship body surface is damaged after long-time use, the damaged ship detachable single plate is replaced by passive reverse rotation of the sensor through the central control, so that the ship detachable single plate is separated from the ship body surface, and the ship detachable single plate on the ship body surface is separately disassembled.

A method for assembling a tubular floating structure and its use. First and second tubular members (11, 12) are welded to opposite sides of a stiffening ring (10) to obtain a double segment (12 / 11). Additional segments (13, 14) can be added to form a tubular multi-segment with a stiffening ring (10) between three adjacent tubular members (11, 12, 13). The resulting multi-segment (12 / 11 / 13) is used as a tubular buoyancy module for a floating offshore structure.

This application discloses a double-hull support assembly for a ship, comprising: ribs, a plurality of outer shell longitudinal ribs, a plurality of inner shell longitudinal ribs, and reinforcing ribs; the ribs are connected between the outer shell plates and the inner shell plates; through holes are formed in the ribs; the plurality of outer shell longitudinal ribs are arranged on the outer shell plates along the ship's height direction, and each of the outer shell longitudinal ribs extends along the ship's length direction; the spacing between adjacent outer shell longitudinal ribs is equal; each of the outer shell longitudinal ribs passes through the through holes and is connected to the ribs; the plurality of inner shell longitudinal ribs are arranged on the inner shell plates along the ship's height direction, and each of the inner shell longitudinal ribs extends along the ship's length direction; the spacing between adjacent inner shell longitudinal ribs is equal; the inner shell longitudinal ribs are opposite to and staggered with the outer shell longitudinal ribs; each of the inner shell longitudinal ribs passes through the through holes and is connected to the ribs; the reinforcing ribs are arranged perpendicular to the ribs, the outer shell plates, and the inner shell plates, and are connected to the ribs.

The invention relates to the technical field of ship heat preservation and heat insulation, in particular to a ship composite heat insulation structure which comprises a heat insulation coating layer, a spraying insulation layer and a reinforced sealing layer from inside to outside. The ship body steel plate is coated with the heat insulation coating layer, the thickness ranges from 2 mm to 10 mm, and the heat conductivity coefficient is smaller than or equal to 0.035 W / m.k; the sprayed insulating layer covers the heat insulation coating, and the thickness of the sprayed insulating layer is 20-80 mm; and the reinforced sealing layer is coated on the spraying insulating layer, the thickness is 20-100 microns, and the impact resistance is greater than or equal to 50 cm. By means of the mode of combining multiple functional layers, a cross-scale heat insulation system is constructed, the multi-element hierarchical synergistic effect is achieved, the cold and heat bridge phenomenon is avoided through the integrated technology, the defect of a single heat insulation structure is overcome, and the heat preservation and heat insulation requirements of ships in the polar region environment can be met. In addition, the thermal insulation coating system is different from a traditional thermal insulation coating, the synthesized novel benzoxazine structure can achieve good sealing and anti-corrosion performance, and the service life of the material is greatly prolonged.

The invention relates to the technical field of ship manufacturing, in particular to a modular honeycomb core board ship and a construction method thereof. According to the honeycomb core plate module, materials are efficiently utilized through a hexagonal honeycomb structure, the overall steel consumption of a ship is reduced, and the construction cost is reduced; due to the modular design, the construction period of the ten-thousand-ton ship is shortened, and the labor cost is greatly reduced; the independent sealed cabin and the double-layer shell structure form multiple safety barriers, and buoyancy can still be kept even if a small part of the cabin is damaged; the honeycomb structure improves the impact resistance by dispersing stress, and the structural stress under extreme sea conditions is lower than that of a traditional hull; compared with the traditional fuel power, the hybrid energy system has the advantages that the energy consumption is reduced and the carbon emission is reduced; the energy utilization rate is improved through intelligent energy distribution, the energy storage device adapts to the marine environment, and the continuous navigation stability is guaranteed.

A submersible vehicle having an elongate shape comprises, arranged along a length of the submersible vehicle, an external surface comprising: a front portion, a middle portion, and a rear portion, a first transitional portion between the front portion and the middle portion, and a second transitional portion between the middle portion and the rear portion; wherein, in a cross-sectional plane perpendicular to the length of the submersible vehicle: the front portion comprises a substantially circular cross-section, the middle portion comprises a substantially triangular cross-section formed of a base surface and, angled relative to the base surface, a first upper surface and a second upper surface, the surfaces joined by radiused vertices, and the rear portion comprises a substantially circular cross-section; the first transitional portion configured such that the substantially circular cross-section of the front portion gradually transitions, along the length of the submersible vehicle, to the substantially triangular cross section of the middle portion, and the second transitional portion configured such that the substantially triangular cross section of the middle portion gradually transitions, along the length of the submersible vehicle, to the substantially circular cross-section of the rear portion. A corresponding hull for a submersible vehicle, a fairing for a submersible vehicle, a kit of parts and a seismic survey system are also provided.

The utility model discloses a ship body which comprises a ship body shell and a reinforcing structure. The hull shell is an integrally formed metal piece; the reinforcing structure is a friction stir additive deposited on the inner surface of the hull shell. The ship body is high in overall structural strength, few in weld joints and high in machining efficiency.

This invention discloses an underwater self-propelled biomimetic exploration robot, belonging to the field of robotics technology. The exploration robot includes a spherical outer shell and multiple power systems arranged in a circumferential array on the outer shell. Each power system includes a drive motor installed inside the spherical outer shell, multiple elastic frames arranged in a circumferential array outside the outer shell, and a canopy fixed to the elastic frames. One end of each elastic frame is fixed to the outside of the spherical outer shell, and the other end passes through the outer shell and is wound around the drive motor shaft via parachute ropes. The elastic frames form a U-shaped structure. The support structure of this invention's underwater self-propelled biomimetic exploration robot is a highly stable spherical outer shell with strong resistance to external pressure. Furthermore, this structure has strong adaptability to complex water surface and underwater environments such as eddies and turbulence, and can continue to operate even if it capsizes.

This application relates to the field of metal material processing technology, and discloses a titanium-steel composite plate, its preparation method, and a ship. The titanium-steel composite plate includes a steel substrate layer, a pure titanium cladding layer, and an alloy layer, wherein the alloy layer is disposed between the steel substrate layer and the pure titanium cladding layer; wherein the alloy layer includes a Fe-intermediate element-Ti ternary alloy layer, and the Fe-intermediate element-Ti ternary alloy layer satisfies the following conditions along the direction from the steel substrate layer to the pure titanium cladding layer: the Fe content gradually decreases, the Ti content gradually increases, and the content of the intermediate element first gradually increases and then gradually decreases; the intermediate element is a transition element in the Fe-Ti system. This composite plate exhibits excellent interface quality, as well as excellent structural stability and corrosion resistance.

To provide a ship capable of reducing restriction of arrangement of a fuel tank and a pump and transferring methanol as fuel from the fuel tank by the pump while suppressing vaporization of the methanol.SOLUTION: A ship includes a hull having a pair of broadsides and a bottom, a lowermost deck provided in the hull and defining a double bottom space between the lowermost deck and the bottom, a tank at least partially provided in the double bottom space and capable of storing methanol as fuel, a pump provided outside the tank and below the lowermost deck in the hull and pumping the methanol in the tank, and a combustion device provided in the hull and to which the methanol pumped by the pump is supplied.SELECTED DRAWING: Figure 1

This invention discloses a method for arranging a staggered tandem cavity group with superior hydrodynamic characteristics, relating to the field of underwater vehicle structure design technology. The key technical points are: it includes multiple cavities arranged in at least two columns, with the at least two columns of cavities staggered along the direction of travel of the underwater vehicle, forming a staggered tandem layout. Furthermore, the ratio of the distance I between two adjacent cavities in the same column to the cavity length L is I / L ≥ 2. This invention, through the staggered tandem cavity layout, reduces the total drag of the cavity group by 70.6%, effectively suppressing the downstream cavity drag multiplication and flow interference. Simultaneously, this cavity layout balances the flow field structure, significantly reduces the Reynolds stress peak, fundamentally improves acoustic stealth performance, avoids noise frequency down-frequencyization and energy amplification, and while maintaining the total number and function of cavities, it still meets the requirements of high performance and high concealment.

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.

The invention discloses a staggered serial cavity group arrangement method with better hydrodynamic characteristics, and relates to the technical field of underwater vehicle structure design, and the technical scheme is characterized in that a plurality of cavities are included, the cavities are arranged into at least two columns, the at least two columns of cavities are arranged in a staggered manner in the advancing direction of an underwater vehicle, and the cavities are arranged in a staggered manner in the advancing direction of the underwater vehicle. And the ratio I / L of the distance I between two adjacent cavities in the same column to the length L of the cavities is greater than or equal to 2. Through the staggered serial cavity layout, the total resistance of the cavity group is reduced by 70.6%, resistance multiplication and flow interference of downstream cavities are effectively inhibited, meanwhile, the flow field structure is balanced through the cavity layout, the Reynolds stress peak value is remarkably reduced, the sound stealth performance is fundamentally improved, low noise frequency and energy amplification are avoided, and the sound stealth effect is improved. And the requirements of high performance and high concealment are also considered while the total number of the cavities and the functions are kept unchanged.

The invention relates to the field of shipbuilding equipment.The anti-shearing structure of the container ship cabin comprises an outer plate, a double-layer bottom is arranged at the bottom end of the outer plate, a deck platform is horizontally arranged in the outer plate, an inner longitudinal wall is vertically arranged in the outer plate, the inner longitudinal wall is fixedly connected with the deck platform, and the inner longitudinal wall is fixedly connected with the deck platform. And the inner longitudinal wall is fixedly connected with the outer plate. The structure can be rapidly arranged, the cabin separation requirement of a cabin can be met, the effect of supporting a cabin deck can be achieved, the thickness of a hatch coaming is reduced, and the structure weight and the shipbuilding cost are reduced.

The application discloses a double-hull side structure of a large and medium-sized container ship, which is arranged between a hull plate and an inner shell of the container ship, a passage platform is arranged below a main deck, a bilge platform is arranged above a bilge, no other platform is arranged between the passage platform and the bilge platform, two ends of the passage platform are fixedly connected to the hull plate and the inner shell respectively, one end of the bilge platform is fixedly connected to the hull plate, and the middle part of the bilge platform is fixedly connected to the inner shell. The application can save steel material, reduce weight, lower manufacturing cost, reduce construction process and reduce the number of components.

The invention relates to a ship. The object of the invention is to eliminate the disadvantages of the prior art and to provide a ship which enables the safe storage and flexible use of sufficient quantities of an alternative fuel. This problem is solved by the features listed in the claims.

This invention discloses a liquefied gas storage tank and a vessel for transporting liquefied gas. The liquefied gas storage tank includes a main shielding layer that contacts the liquefied gas on one side, a secondary shielding layer disposed on the other side of the main shielding layer, and at least one liquefied gas loading / unloading tower. The base of the liquefied gas loading / unloading tower includes: a lower part of the base body fixedly connected to the bottom wall; a corrugated plate of the secondary shielding layer connected to the lower part of the base body; and a closed end at one end of at least one corrugation of the secondary shielding layer facing the lower part of the base body. An upper part of the base body has mounting holes in the main shielding layer, through which the upper part of the base body is fixedly connected to the lower part of the base body. By opening mounting holes on the flat surface of the main shielding layer to achieve the installation of the pump tower base, the integrity of the corrugated structure of the main shielding layer is fully preserved, ensuring the expansion and contraction performance of the main shielding layer in low-temperature environments and improving the low-temperature sealing reliability of the storage tank.

The invention relates to a container ship broadside watertight strong frame and a design method thereof, and relates to the technical field of container ship hull structure design, and the design method comprises the following steps: using a perimeter plate as the boundary of the broadside watertight strong frame to enclose a strong frame plate; the peripheral plate comprises an outer plate, an inner shell, an upper platform and a lower platform which are all provided with longitudinal ribs; a through hole is additionally formed in the position, penetrating through the strong frame plate, of the peripheral plate longitudinal bone, and a watertight reinforcing plate is arranged; the longitudinal bones on the inner shell and the outer plate of the ship body are sequenced from small to large according to the vertical coordinates and then are matched in a one-to-one correspondence mode in sequence, and stiffeners are arranged between each pair of longitudinal bones on the strong frame plate; the strong frame plate is divided into a plurality of plate grids through stiffeners, and the steel grade and the plate thickness of each plate grid are determined; determining the steel grade and the profile size of each stiffener; the plate grids and the stiffeners are grouped, and plate thickness combination and size combination are carried out respectively. Reasonable and reliable design of the watertight strong frame can be guaranteed, and the design efficiency can be improved.

To provide a drainage structure of a ballast tank in which the drainage time of residual ballast water is not significantly lengthened even if the number of communication holes and their opening areas are reduced.SOLUTION: The total opening area of multiple vertical frame members 17, multiple girder members 11, and multiple communication holes 25 provided in each part of multiple floor members 13 facing each small partition chamber 19 included in 3 or 4 rows of small partition chambers 20Wa-20Wd in the ship width direction, decreases away from the small partition chamber provided with a suction port 21 centered thereon in multiple small partition chambers in a prescribed region centered on the small partition chamber provided with the suction port. The communication hole 25L is not provided in each part of the girder members and the vertical frame members facing a part or all of the small partition chambers among the multiple small partition chambers in the small partition chamber rows in the ship width direction, which are a part or all of the small partition chamber rows 20Wf-20Wh in the ship width direction except for the small partition chamber rows 20Wa-20Wd in the ship width direction.SELECTED DRAWING: Figure 2

A compact C type CO2 transport ship, two circular cargo holds are arranged in parallel in the cabin inside and the ship width direction, the top of the circular cargo hold is upwardly convex, the top deck of the circular cargo hold is also upwardly convex with the circular cargo hold, a top C type CO2 tank is arranged in the groove formed by the two upwardly convex decks, the saddle of the top C type CO2 tank is made of the deck as the saddle bottom plate, an internal C type CO2 tank is arranged in each of the two circular cargo holds, the saddle of the internal C type CO2 tank is made of the inner bottom of the circular cargo hold as the saddle bottom plate, the longitudinal bulkheads of the two circular cargo holds are enclosed to form a Y type ballast hold with the opening downward, and a first ballast hold is arranged at the bottom of each circular cargo hold correspondingly. The ship rapidity can be improved, and the utilization rate of the cabin can be increased. The convex deck design reduces the waste of deck space, and the deck tank can be placed in the concave position of the deck, so that the gravity center of the deck tank is reduced.

The invention discloses a ship double-shell supporting assembly which comprises a rib plate, a plurality of outer shell longitudinal ribs, a plurality of inner shell longitudinal ribs and reinforcing ribs. The rib plate is connected between the outer shell plate and the inner shell plate; through holes are formed in the rib plates; the shell longitudinal bones are arranged on the shell plate in the height direction of the ship, and all the shell longitudinal bones extend in the length direction of the ship. The distances between the adjacent shell longitudinal bones are equal; the shell longitudinal bones respectively penetrate through the through holes and are connected with the rib plates; the multiple inner shell longitudinal bones are arranged on the inner shell plate in the height direction of the ship, and all the inner shell longitudinal bones extend in the length direction of the ship. The distances between the adjacent inner shell longitudinal bones are equal; the inner shell longitudinal bones and the outer shell longitudinal bones are opposite and are arranged in a staggered manner; the inner shell longitudinal bones respectively penetrate through the through holes and are connected with the rib plates; the reinforcing ribs are arranged perpendicular to the rib plates, the outer shell plate and the inner shell plate and connected with the rib plates.