3106 results about "Hull" patented technology

The invention relates to the technical field of ship energy efficiency analysis, and particularly discloses a digital twinning-based bulk carrier EEDI pre-evaluation and design optimization method and device, and the method comprises the steps: carrying out the multi-source data collection, building a ship full life cycle database, building a high-precision digital twinborn body based on transfer learning calibration, coupling target port tide time series data, and carrying out the design optimization. The influence of dynamic water depth and water flow changes on a ship navigation strategy is simulated, the whole-course navigational speed is optimized to reduce the total oil consumption, a hull biological pollution bottom growth model is introduced into energy efficiency evaluation, the energy efficiency attenuation trend of the whole life cycle of the ship is predicted, and an operation EEDI index is generated through multi-physics coupling simulation. And multi-target collaborative optimization is carried out in combination with maneuverability safety evaluation, so that the problems that traditional EEDI evaluation is separated from actual operation conditions and neglects tidal window matching and hull energy efficiency attenuation are solved, and accurate prediction and collaborative optimization of the energy efficiency and safety of the whole life cycle of the ship from a design stage are realized.

The invention relates to the technical field of ship design optimization, and discloses a hull shape optimization method based on neural network modeling. In the data acquisition stage of the method, initial appearance parameters and hydrodynamic performance data of a ship body are obtained, the appearance parameters comprise geometric dimensions and shape features, and the performance data comprise resistance coefficients and wave-making resistance values. In the neural network construction stage, a neural network model with a multi-layer perceptron structure is trained by using collected data, weights are updated through a back propagation algorithm, and a nonlinear mapping relation between appearance parameters and hydrodynamic performance indexes is established. In the shape optimization stage, the trained neural network model is used for carrying out iterative adjustment on the shape of the ship body, fluid dynamic performance indexes are recalculated through the model after each adjustment until preset convergence conditions are met, and finally optimized ship body shape data are output. According to the method, partial complex calculation is replaced by the neural network, and intelligent optimization of the hull appearance is realized.

The invention discloses a ship steering engine fault early-warning method based on sparse Bayesian, and the method comprises the steps: collecting the data, such as a rudder angle instruction, an actual rudder angle, steering engine response, motor current, oil pressure, ship speed, ship posture, sea condition grade, in a navigation process, and constructing a time window monitoring sample set through time alignment and normalization; steering engine response features are extracted and spliced with the working condition features to form working condition feature vectors, steering engine state labels are marked in combination with maintenance records to form a training sample set, and an adaptive sparse Bayesian early warning model with working condition related sparse priori is trained; and generating a current working condition feature vector in real-time navigation, inputting the current working condition feature vector into the model to obtain a steering engine fault risk value, and selecting a self-adaptive early warning threshold value according to a sea condition grade to output a fault early warning result. According to the invention, the false alarm rate is reduced and the early fault identification capability is improved under complex sea conditions.

The utility model provides a multi-laser radar fusion ship loader non-blind area measuring system, which relates to the field of laser radar measurement and comprises a ship body, a multi-laser radar fusion measuring device, a ship loader and a mechanical arm. The mechanical arm clamps the upper end of the multi-laser radar fusion measurement device; the mechanical arm is movably arranged on the ship loader, the moving route of the mechanical arm is from the bow to the stern of the ship body, and the mechanical arm is always located on the center line above the ship body. According to the utility model, the two long-distance laser radars are longitudinally installed, the high-precision holder is equipped, and the holder rotates at a low speed and at a small angle, so that dynamic splicing of scanning data is realized, accurate point cloud data can be rapidly obtained in a short time, data acquisition efficiency and precision are greatly improved, and the system is suitable for large-scale popularization and application. Through the installation of two long-distance radars and the cooperation of the other two short-distance radars, the non-blind area type measurement of the ship body is realized.

An accessory mount allows accessories to be removably and adjustably mounted to a surface. In an example, the surface may be that of a watercraft, and the accessory may be a fishing rod. The mount may be used with a track fixable to an environmental surface or mounted directed to the environmental surface. When used with a track, a post of the accessory mount releasably engages the track. Slidable engagement of the post allows lateral or horizontal adjustment of the accessory. An accessory engaging member is adjustable in relation to the post about a horizontal axis and a vertical axis, so that angular and azimuthal rotational adjustments of the accessory are enabled. A single lever is used to make angular and rotational adjustments, and to release the accessory engaging member from the post.

The invention relates to the technical field of intelligent unmanned ships, in particular to a wave self-adaptive unmanned ship, a self-adaptive control system and a control method.The wave self-adaptive unmanned ship comprises a main ship body, a front arch, a rear arch, a suspension system, a propelling nacelle, a rigid sliding plate and a buoy, the main ship body is connected with the rear arch and the front arch, and the rigid sliding plate is fixed to the buoy; the propulsion nacelle is installed at the tail of the rigid sliding plate, the rear arch and the rigid sliding plate are installed through two bearings perpendicular to each other, the suspension system comprises a rocker arm, a plate spring and a TPMLM actuator, the rocker arm is connected to the rigid sliding plate, the plate spring and the TPMLM actuator are connected between the rocker arm and the rigid sliding plate and support the rocker arm to be in an upward inclined posture, and the rear arch is connected to the rigid sliding plate. The front arch is connected with the rocker arm, the plate spring and the TPMLM actuator are installed in parallel in the vertical direction, the TPMLM actuator is used for outputting active control force for restraining movement of the ship body, and the unmanned ship, the self-adaptive control system and the self-adaptive control method have the advantages that wave loads can be actively counteracted, and therefore movement restraining is achieved.

The invention discloses a cabin-penetrating cable sealing assembly with a combined rubber ring, and relates to the field of cable cabin-penetrating sealing, and the cabin-penetrating cable sealing assembly comprises a cabin-penetrating pipe body and at least one sealing ring assembly. The cabin penetrating pipe body is provided with a pipe cavity which extends in the axial direction and allows a cable to penetrate through. The pipe cavity is divided into an in-cabin section and an out-cabin section. The sealing ring assembly comprises a set of lip-shaped sealing rings, lips of the set of lip-shaped sealing rings face the outside of the cabin, the in-cabin section is filled with the lip-shaped sealing rings in an overlapped mode in the axial direction, the cable is sleeved with the lip-shaped sealing rings, and the lip-shaped sealing rings comprise a main sealing ring and an auxiliary sealing ring. The gap between the cable and the cabin penetrating pipe body is filled with the main sealing ring. The auxiliary sealing ring fills a gap between the cable and the cabin penetrating pipe body, and the auxiliary sealing ring and the main sealing ring are arranged in an overlapped mode. The elasticity of the auxiliary sealing ring is smaller than that of the main sealing ring, and the abrasion resistance of the auxiliary sealing ring is larger than that of the main sealing ring. The cabin-penetrating cable sealing assembly with the combined rubber ring is high in sealing reliability.

The invention provides a combined fleet steering cooperation method and system based on intelligent control, and relates to the technical field of data processing, and the method comprises the steps: calculating a cooperative steering deviation value of an actual track and a preset reference path; if the collaborative steering deviation value exceeds a preset collaborative deviation threshold value, a real-time safe navigation boundary is generated through a universal dynamic point set convex hull updating algorithm; calculating a hydraulic pressure correction parameter and a rudder angle compensation amount according to the spatial position relationship between the cooperative steering deviation amount and the real-time safe navigation boundary; and converting the hydraulic pressure correction parameter into a pressure regulation instruction, and driving a pressure self-adaptive regulation mechanism of the hydraulic system to execute a compensation steering action. According to the invention, the steering deviation is reduced, and the navigation safety in a complex environment is improved.

The invention relates to the technical field of ship performance prediction, and discloses a marine bulk carrier navigational speed prediction method and system, and the method comprises the steps: obtaining route planning data of a target bulk carrier, dividing the route planning data into different route segments, obtaining route segment sea area feature data and route segment navigation time sequence data for each route segment, and building a sea condition space-time sequence data set, performing multi-dimensional time sequence feature extraction to obtain a sea condition feature vector of each leg; determining a current working condition according to ship design parameters and cargo loading information of the target bulk cargo ship, and calculating a ship body wet surface area and a drainage volume under the current working condition; analyzing the total resistance value and the effective propulsion power of each leg in combination with the sea condition feature vector of each leg; and based on the total resistance value and the effective propulsive power of each leg, solving the predicted navigational speed value of the leg, and combining with the voyage distance of each leg to generate a segmented navigational speed prediction curve and full voyage number voyage time along the route. According to the method, the reliability of forecasting the long-voyage shipping speed is improved.

The utility model provides a river channel desilting device, and mainly relates to the field of water area desilting equipment. A river channel desilting device comprises a ship body. The dredging device has the advantages that the movable supporting plate driven by rotation of the threads is arranged in the ship body to move so as to drive the dredging pipe barrel to move, and the hydraulic cylinder capable of driving the dredging pipe barrel to ascend and descend is further arranged between the movable supporting plate and the dredging pipe barrel; different stretching depths of the desilting pipe barrel can be adjusted by adjusting the lifting height of the movable supporting plate and the lifting height of the hydraulic cylinder, and a spiral conveying twisting blade driven by a motor to rotate is further arranged in the desilting pipe barrel. Sludge, impurities and the like deposited at the bottom of the river channel are conveyed into the upper ship body through the spiral conveying twisted blade to be collected and treated through the dredging pipe barrel, and when the interior of the dredging pipe barrel needs to be cleaned, the dredging pipe barrel can be placed on the ship body and opened to clean the interior of the dredging pipe barrel.

The invention discloses a ship sensor measuring point optimization method and system, and relates to the technical field of sensor measuring point optimization, and the method comprises the steps: generating a fractal hierarchical weight matrix through a fractal geometric model based on pre-obtained ship navigation working condition data, and carrying out the load sensitivity analysis through the combination of pre-obtained sea area observation data, obtaining a dynamic load sensitive matrix; a morphological load coupling weight matrix is obtained, a preset ship body layout node set is combined, a layout optimization algorithm is utilized to carry out sensor measuring point layout of guide type search, and candidate measuring point layout is obtained; and carrying out time domain dynamics simulation by using the simulation model, carrying out ship whole-field structure state reconstruction in combination with a state inversion method, and optimizing the candidate measuring point layout to obtain an optimized measuring point layout. The spatial-temporal variability of external excitation is fully considered, and the problem of high-rigidity low-response misjudgment possibly caused by a traditional method only depending on structural rigidity or mass distribution is avoided.

A system and method for enhancing marine vessel efficiency through integrated hull optimizations is disclosed. The system includes automated bow thruster covers that reduce hull drag and condition water flow, coupled with strategically positioned air lubrication nozzles that create and maintain an air layer under the vessel. The bow thruster covers may be configured as circular doors or parallel panels, optionally incorporating air discharge ports or working in conjunction with dedicated air jets. An intelligent control system optimizes the integrated components using real-time sensor data and computational fluid dynamic analysis. The system modulates air distribution and cover positions based on sea conditions and vessel speed, maintaining optimal efficiency during operation. External surfaces may incorporate superaerophilic structures to enhance air retention and reduce drag. The comprehensive integration of these components provides improved hydrodynamic efficiency while maintaining full bow thruster functionality when required.

A floating body for an offshore wind turbine includes: one first column; two second columns; two lower hulls connecting the first column to each of the second columns; and a beam member connecting the two lower hulls. The beam member is disposed within a height range between an upper surface and a lower surface of each lower hull.

The invention relates to the technical field of blue-green algae cleaning, and discloses a blue-green algae cleaning boat and a cleaning method.The blue-green algae cleaning boat comprises a boat body, a bearing frame, a cleaning assembly, a dumping and collecting box and a power supply driving assembly, and the boat is composed of two suspension bodies to improve buoyancy and stability. The bearing frame is located on the inner side of the ship body and provides a bearing area for installing the cleaning assembly and other related components. The cleaning assembly is located above the bearing frame and used for cleaning and conveying algae pollutants. And the dumping and collecting box is arranged at the tail end of the cleaning assembly and is used for receiving and storing the cleaned and conveyed algae pollutants. The power supply driving assembly provides assembly working power and supports work of the cleaning assembly. The small boat firstly runs to a preset position and is accurately positioned by additionally arranging a built-in navigation system. And after the blue-green algae arrives at the target area, the cleaning assembly starts to work, and the blue-green algae is removed from the water surface through a cutting and conveying mechanism and conveyed into a dumping and collecting box. The cleaned algae are directly conveyed into the collecting box through the conveying device, and the pollutant collecting process is completed.

The invention relates to the technical field of water area desilting, in particular to a chain bucket type desilting device based on air pressure drainage and a desilting method. The desilting device comprises a ship body, and a desilting mechanism capable of moving in a lifting mode is arranged on the ship body; the desilting mechanism comprises a water insulation cylinder with an opening in the bottom, a circulating chain bucket mechanism arranged in the water insulation cylinder in the length direction of the water insulation cylinder and a material scraping mechanism arranged at the bottom of the water insulation cylinder, and the water insulation cylinder is used for inflating and discharging water in the water insulation cylinder to sink to the bottom to form a dry operation cabin. The material scraping mechanism is arranged at the bottom of the waterproof barrel and used for scraping the sludge to the material digging position at the bottom end of the circulating chain bucket mechanism, and the circulating chain bucket mechanism is used for conveying the sludge at the water bottom to the ship body. The dry operation cabin is formed when the waterproof barrel is inflated and sinks to the bottom, the material scraping mechanism scrapes sludge to the material digging position at the bottom end of the circulating chain bucket mechanism, the dredging effect is remarkably improved, the circulating chain bucket mechanism transports the sludge at the water bottom to the ship body, no sludge is diffused into water, and the problems that use is inconvenient, and open type dredging has large influence on the environment are solved.

The invention belongs to the technical field of ship construction, and discloses a bulkhead supporting structure and a ship. The bulkhead supporting structure is used for supporting a top plate, the top plate is used for bearing a groove-shaped bulkhead, the bulkhead supporting structure comprises a side vertical plate and a supporting assembly, the side vertical plate abuts against the top plate in the vertical direction, and the side vertical plate is arranged right opposite to a first panel of the groove-shaped bulkhead in the vertical direction; the supporting assembly comprises a supporting cross beam, the two ends, in the length direction, of the supporting cross beam are connected to the side walls of the ship body, the supporting cross beam abuts against the top plate in the vertical direction, and the supporting cross beam directly faces the second panel of the groove-shaped bulkhead in the vertical direction. The bulkhead supporting structure is only provided with the side vertical plate on one side, the upper groove-shaped bulkhead is powerfully supported, meanwhile, structural materials are reduced, the dead weight of a ship is reduced, meanwhile, the side vertical plate on the other side is omitted, the construction space and the cargo space are released, the construction environment is improved, and then the building efficiency of the ship is improved.

The application provides an underwater broken stone base leveling device and a leveling method thereof, which comprises a ship body, the bottom of the ship body is provided with a leveling device, the leveling device comprises an outer frame, outer support leg oil cylinders are arranged at four corners of the outer frame, a sliding leveling mechanism is arranged on the outer frame, inner support leg oil cylinders are arranged at four corners of the leveling mechanism, and an elevation adjusting oil cylinder is arranged at the top of the leveling mechanism. The leveling device is automatically adjusted to be in a horizontal state, then the height of the outer frame is measured, the leveling head is automatically adjusted to a required height according to a set leveling thickness, the movement of the propelling oil cylinder is controlled, the leveling head is leveled at one station of the frame of the support, the walking type advancement of the leveling robot is realized through the interactive support of the four outer support leg oil cylinders and the four inner support leg oil cylinders, the overall device utilizes the fusion and coordination of multiple sensors, the automatic leveling of the underwater broken stone outer frame can be realized, the overall device is automatically leveled, and the problems that the traditional method is difficult to adapt to deep water and has low construction efficiency are overcome.

The invention discloses a marine unmanned ship formation obstacle avoidance and cooperation method based on an improved artificial potential field method, and the method comprises the steps: obtaining a control resultant force according to the attraction force, repulsive force, cooperation force and a speed correction term of a ship body; updating the velocity vector of the boat body by using the control resultant force so as to optimize the path; the space position of the boat body is divided into two areas, the minimum value of the minimum distance of the two areas serves as the minimum distance, and the distance between the boat bodies is monitored and adjusted; and dynamically adjusting the path by using the expected path direction of the hull, the path updating step factor and the direction disturbance suppression correction term. According to the embodiment of the invention, multiple intelligent mechanisms such as nonlinear potential field adjustment, inter-boat collaborative modeling and division and conquering real-time calculation are fused, and the safety, stability and adaptability of unmanned boat formation are effectively improved in a template-free formation scene. The method has high adaptive capacity in multi-task, multi-obstacle and autonomous coordination tasks, and path conflict and collision risks can be remarkably reduced.

The invention discloses a ship base installation precision control method, device and equipment and a storage medium. According to the technical scheme, in the state that the ship body sections do not need to be adjusted to be completely horizontal, the multiple target points are placed and positioned near the ship body longitudinal section line, the ship body rib detection line and the ship base installation area, positioning and automatic compensation are conducted through the target points, measurement errors caused by ship body deformation and insufficient flatness are eliminated, and the measurement accuracy is improved. And establishing a target projection coordinate system which is accurately aligned with the ship body coordinate system, mounting the ship base according to the base characteristic line and the target projection coordinate system, and performing mounting precision control on the mounted ship base based on the theoretical horizontal line and the projection horizontal line, thereby realizing base mounting precision control in a non-horizontal state. And the positioning precision of the base is improved.

The invention discloses an unmanned ship self-adaptive safety redundancy system for an inland river ultra-shallow water environment and a control method. The system is composed of four-stage closed-loop redundancy of sensing, decision making, execution and laws and regulations. A 0.1 m-stage shallow water three-dimensional map is constructed in real time by a dual-millimeter-wave radar and a high-frequency single-beam sounding sonar; the main and standby controllers process the quay wall effect, backflow and grounding nonlinear disturbance on line through a BLF-RBFNN fixed time convergence algorithm, and the upper bound of convergence time is 4.2 s and is irrelevant to the initial state; the variable-configuration double-pump jet-air cushion hybrid propulsion device adjusts the draft on line according to the water depth of 0.12-0.45 m, and is matched with the self-righting honeycomb composite ship body to automatically stop leakage and return within 60 seconds when the ship body is damaged; and when the ship-end double control fails, the ship-shore cloud collaborative digital twinborn body completes regulation-level minimum risk takeover within 10 seconds. Experiments prove that the path error is less than or equal to 0.08 m and the fault degradation success rate is 100% in a 0.15 m water tank and 0.35 m Yangtze River channel, and zero-grounding, zero-overturning and zero-regulation illegal sailing of the ultra-shallow water unmanned ship is realized.

The application relates to the technical field of calculation simulation of ship hull propulsion research, in particular to a simulation model convenient for hydrodynamic calculation of a full-rotation double-propeller ship, which comprises a plurality of groups of water pressure sensors arranged on the circular arc outer wall of a detection column and facing openings, a drainage long groove arranged on the circular arc outer wall of the detection column and located at the openings, a water inlet pipe of an external water pump assembly arranged in the detection column, and a lifting port arranged at one end of the water inlet pipe and capable of sliding along the drainage long groove to adjust the height, wherein the beneficial effects are that the water flow direction and flow rate in the pool model are accurately controlled through water pumping and high-pressure water inflow in the symmetrical direction, the data detection range of the test is improved, the simulation equipment provided with the water pressure sensors and the displacement sensors is arranged, so that the data in the test process can be conveniently collected, the position of the simulation small ship can be accurately collected through the coordinates established by the transparent grid plates, and the test accuracy is greatly improved.

The invention relates to the technical field of ship body spraying, and particularly discloses a ship body outer plate spraying paint mist collecting and treating system. The system comprises an elevated vehicle and a working platform thereof, a three-cavity gas collecting hood is arranged on one side of the platform, a paint mist treatment box is hung at the bottom, and a negative pressure fan is arranged on the upper portion. The three-cavity gas collecting hood divides an operation area into a spraying cavity, a front negative pressure collecting cavity and a rear negative pressure collecting cavity, the self-adaptive negative pressure adjusting device dynamically controls airflow according to the concentration of paint mist, and normal diffusion and adhesion quality of the paint mist to an outer plate of a ship body are guaranteed while the paint mist is effectively prevented from escaping. The paint mist treatment box adopts a compact modular design, is internally provided with a uniform flow structure, a two-stage filtering unit and an adsorption unit, and can synchronously remove paint mist particles and volatile organic compounds; an intelligent monitoring system is arranged, the maintenance state is pre-warned in real time, and by combining suspension installation and a drawer type structure, rapid dismounting and convenient maintenance are achieved. The system provides a complete environment-friendly solution for dock spraying operation.

The invention discloses a method for measuring hydrological flow through amphibious equipment, and relates to the field of hydrological flow monitoring, the method comprises the steps that an amphibious platform with a ship body at the bottom and multiple rotor wings additionally arranged at the top is utilized, an ADCP, a GNSS / IMU, an environment sensor and the like are integrated, and the interference trend and the threat level are pre-judged by means of a prediction model by sensing water flow, waves, wind power and the posture of the ship body in real time. An active stability control algorithm is adopted, power output of an underwater propeller and an air rotor wing is dynamically coordinated and distributed, a ship body is restrained from moving to a measurement allowable error range, and the core of the method is that an operation mode is intelligently switched, and underwater power contact measurement is relied on in medium and low water; the system lifts off in high water or flood, GNSS positioning is adopted for non-contact hovering measurement, the industrial problems that traditional cableway flow measurement is likely to be broken, and sailing ADCP is likely to be out of control and lose efficacy in torrent are thoroughly solved, full-scale, high-precision and full-automatic hydrological flow online monitoring is achieved, and a reliable technical means is provided for flood control, disaster reduction and water resource management.

A ventilation drag reduction device includes a main housing, a first rectification assembly, a second rectification assembly, and a flow isolating assembly; the main housing is composed of a first segment, a second segment, a third segment, and a fourth segment; the first rectification assembly is composed of first rectification plates; the second rectification assembly is composed of at least one second rectification plate; the flow isolating assembly is arranged in a cavity of the third segment; the fourth segment is configured as an outlet end. On the premise that the total construction cost is not obviously increased, high-pressure gas is rectified in a cavity of the main housing, so that the turbidity of the high-pressure gas is reduced, and a stable insulating gas layer is formed at the bottom of a hull; in addition, the present invention further discloses a marine ventilation drag reduction system.

This application relates to the technical field of fully automated water surface robots, and provides a performance unmanned boat, including a hull; a mounting frame fixed to the hull; a screen fixed to the mounting frame and located on the top side of the hull, the screen having a ventilation structure; and a float fixed to the hull and located on the side of the hull. The performance unmanned boat provided by this application uses a screen with a ventilation structure and a float in conjunction with the hull. The ventilation structure reduces the screen's resistance to natural wind flow, reducing the external force exerted on the screen by natural wind. Simultaneously, the float increases the hull's support points on the water surface, enhancing the hull's resistance to wind and waves. This effectively solves the technical problem of unmanned boats carrying large screens easily capsizing when navigating on water, improving the stability of the performance unmanned boat on water, ensuring the smooth completion of performance tasks, and enabling the performance unmanned boat to meet the requirements of cultural and publicity purposes.

A vessel for transporting cargo by water comprises one or more propulsion devices with at least one air-breathing engine from the one or more propulsion devices disposed entirely above a surface of the water in a high-speed mode of operation. The least one air-breathing engine is configured to bleed airflow into a fluid circuit. The fluid circuit routes the bleed airflow to one or more fluid outlets disposed entirely below the surface of the water in the high-speed mode of operation. At least some of the one or more fluid outlets release the bleed airflow in the high-speed mode of operation generate a boundary layer along at least a portion of a hull of the vessel to reduce a skin friction drag thereof.

This invention provides an in-situ stratified rapid sampling device and method for river and lake sediment pollution, relating to the field of river and lake sediment pollution monitoring technology. The device includes: a main control system, a main sampling system, a mounting frame, a depth sounding module, a working vessel hull, and a crane. The depth sounding module is installed below the stern of the working vessel hull. The main control system and the crane are both mounted on the working vessel hull. The main sampling system is connected to the crane and fixed within the mounting frame. The depth sounding module is used to detect and determine water depth and the thickness of floating mud, flowing mud, and silt. The main control system is used to control the sampling process of the main sampling system and to read the water depth, sediment thickness, and determine whether the main sampling system has completely inserted into the sediment in real time. The main sampling system is used to insert into the sediment to perform stratified sampling of the sediment pore solution. This invention solves the problems of low sampling rate, inability to perform stratified sampling, deviation between stratified sediment samples and actual conditions, low efficiency, and large errors in detection results in existing technologies.

The invention discloses a robot and method for cleaning attachments on the surface of an underwater hull, the robot comprises a machine body, walking devices, a smashing device, a sweeping device and an adsorption steering device, and the walking devices are arranged on the two sides of the machine body and used for driving the robot to advance and retreat; the smashing device is arranged at the front end of the machine body and used for chopping attachments on the surface of the hull. The sweeping device is arranged at the bottom of the machine body and used for sweeping away attachments smashed by the smashing device. The adsorption steering device pumps water in a suction cup through a centrifugal pump, negative pressure is generated in the suction cup, the suction cup is adsorbed to the surface of a ship body, a lifting rod abuts against a gear box and jacks up a machine body, a steering motor drives the gear box and the machine body to rotate through a driving gear and a driven gear, and steering of the robot is achieved. The robot can adapt to different surfaces of the ship body and flexibly steer and move on the surface of the ship body, and attachments are efficiently removed.

The utility model belongs to the technical field of hydrofoils, and particularly relates to a ship with a telescopic elevator structure, which comprises a ship body, a bow, a stern, a buoyancy structure, a first arc-shaped strut and a second arc-shaped strut. The buoyant structure includes a first buoyant volume disposed near the bow and a second buoyant volume located between the first buoyant volume and the stern. The present application provides a vessel with a retractable elevator structure, a first buoyancy volume pivotably coupled to a second buoyancy volume along a radial axis to achieve precise directional control, first and second arcuate struts having proximal ends movably connected to the buoyancy structure and distal ends supporting a hydrofoil lift surface, the first arcuate strut and the second arcuate strut expand and contract in an arcuate manner along an external common radial axis, allowing seamless transition between a compact storage configuration and an expanded operating state, improving ship maneuverability, portability and safety.

The invention discloses a marine equipment impact test platform, and relates to the technical field of marine equipment tests. The device comprises a test pool, the bottom of the test pool is fixedly provided with a plurality of water cannon pipes, the top ends of the plurality of water cannon pipes are fixedly provided with turning pipes, the test pool is internally provided with a test floating platform, the test floating platform is internally fixedly provided with a placing platform, and the placing platform is internally provided with equipment to be tested. By arranging the water cannon pipes, a high-pressure water source conveys high-pressure water flow into the test pool through the water cannon pipes, and meanwhile, the water flow is turned through the turning pipes, so that irregular undercurrent is formed in the test pool, large-scale waves appear on the water surface of the test pool, and the test floating platform shakes along with the waves; the wave amplitude can be controlled by controlling the water pressure, so that the stability of the to-be-tested equipment when the ship body is impacted by waves is tested, the scene that the ship body shakes in storm waves is simulated, and the test result is closer to the actual environment.