872 results about "Wind wave" patented technology

The invention discloses an offshore platform anti-collision device and method based on multi-mode BEV perception, and the device comprises a three-dimensional fusion distance measurement module, a UWB distance measurement module, a ship navigation state monitoring module, a platform marine environment monitoring module, and a central processing unit. The three-dimensional fusion ranging module comprises a holder, a laser radar and a camera, and is used for performing 360-degree three-dimensional scanning on the periphery of the offshore platform; the UWB distance measuring modules are installed on the periphery of a ship and pile legs of an offshore platform. The ship navigation state monitoring module is used for acquiring ship position, navigational speed and course information in real time; the platform marine environment monitoring module collects wind wave data and weather data near the offshore platform and route information of passing ships through network communication. The invention discloses an offshore platform anti-collision device with real-time monitoring and collision risk assessment functions, the anti-collision safety of an offshore platform is improved, and the occurrence rate of collision accidents is reduced.

The invention relates to the technical field of ship control, in particular to a fishing boat control system based on data analysis, which comprises a traction load analysis module, a fluctuation condition division module, an attitude disturbance estimation module, a propulsion power regulation module and a rudder angle correction output module. According to the method, by analyzing the traction force load sequence value and the moment arm length of the fishing net traction point, calculating the left and right side offset torque and marking the action direction, the attitude adjustment precision of the ship is optimized, the operation sea condition level is adjusted according to data, and the ship can be subjected to more reasonable attitude estimation and adjustment under the dynamic working condition; the wind pressure change rate and the pitch angle rate are combined to judge the direction resultant force trend, and the navigation attitude is adjusted according to the sea condition grade, so that the ship can more accurately resist the influence of sea surface storm waves and maintain the course stability, and the rudder angle is corrected by adjusting the propulsion power in real time, limiting the adjustment amplitude of the propulsion power and correcting the rudder angle according to the real-time data of the navigation attitude. And the propulsive efficiency and the navigation precision are optimized.

The invention discloses a sea condition perception and path prediction navigation method and system for a high-speed unmanned ship, and relates to the technical field of multi-source path decision optimization, and the method comprises the steps: collecting storm real-time perception data through a sensing device, carrying out the preprocessing, outputting a standardized sea condition state vector, and providing an experience reference for real-time path planning through ship-borne historical data; constructing a multi-target navigation prediction algorithm model to predict and generate a path candidate scheme set on the basis of the storm real-time sensing data and the ship-borne historical data, and performing evaluation through a conditional random field in combination with path candidate schemes generated by the storm real-time sensing data, the ship-borne historical data and target navigation prediction; and carrying out multi-dimensional safety risk scoring on an evaluation result through a fuzzy analytic hierarchy process by combining the wave height and direction influence, the hull stability and the obstacle avoidance complexity, and determining an optimal sailing path. According to the invention, fusion of multi-source sea condition perception and dynamic path optimization is realized, and the navigation stability, the adaptability and the risk control capability of the high-speed unmanned ship are improved.

A wind and wave response modeling and ocean current inversion method based on machine learning relates to the technical field of artificial intelligence and ocean information services, and comprises the following steps: (1) data acquisition; (2) data processing; (3) constructing a data set; (4) establishing a sea surface flow velocity inversion model by using a particle swarm optimization machine learning algorithm; and (5) obtaining an optimal sea surface flow velocity inversion model through testing and case analysis. Aiming at ocean and Doppler frequency shift characteristics of the sea surface, the invention provides a particle swarm optimization XGBoost model wind wave Doppler contribution prediction method for the first time, and the wind wave Doppler contribution estimation precision and speed can be effectively improved.

The invention discloses a wind wave-seabed-pile foundation-photovoltaic array multi-physics field coupling calculation system for an ocean photovoltaic power station. The system comprises a wave model construction module, a photovoltaic array wind load numerical simulation module and a multi-physics field coupling numerical model integration module. The wave model construction module is used for extracting wave elements and constructing a wave model; the photovoltaic array wind load numerical simulation module is used for performing photovoltaic array wind load numerical simulation based on the extracted wave elements and the constructed wave model; and the multi-physics field coupling numerical model integration module is used for carrying out multi-physics field coupling numerical model integration, solving and verification based on a numerical simulation structure. According to the method, the wind wave load, the seabed seepage field, the pile foundation stress field and the photovoltaic array wind field are cooperatively calculated by building the multi-field dynamic coupling model, and therefore the accuracy and reliability of offshore photovoltaic power station pile foundation bearing performance evaluation are improved.

The invention discloses a near-shore wave-flow field-sediment coupling simulation method considering a wave breaking nonlinear effect, and belongs to the field of near-shore hydrodynamics, and the method comprises the steps: inputting WRF high-resolution wind field, tide boundary conditions and water depth information, and initializing a wave module, a flow field module and a sediment module; calculating local wave breaking dissipated energy by adopting an improved wave breaking energy dissipation formula to obtain a wave energy density spectrum and a breaking probability; a near-shore flow field is calculated under radiation stress nonlinear correction, and hydrodynamic boundary conditions are updated; calculating sediment suspension and deposition by using a coupling diffusion coefficient, and updating sediment concentration distribution; waves, flow fields and sediment are mutually coupled through loop iteration, and coastal wave-flow field-sediment simulation is achieved under extreme conditions such as typhoons, storm surge and strong storm waves. The method can improve the prediction precision of the wave height, the flow velocity and the sediment concentration under the condition of offshore strong storm waves, and is used for typhoon storm surge prediction, harbor basin deposition evaluation and offshore ecological environment management.

The invention belongs to the technical field of comprehensive utilization of ocean renewable energy sources, and particularly relates to a pilot frequency coupling-based wind wave energy multi-degree-of-freedom broadband control method, which comprises the following steps of: performing frequency domain identification on wind wave environment characteristics, and constructing a wind wave pilot frequency energy coupling model; based on the motion response characteristics of the multi-degree-of-freedom floating platform, designing a pilot frequency energy regulation and conversion mechanism; a full-working-condition dynamic optimization control strategy is adopted, and cooperative operation and energy flow self-adaptive distribution of the wind energy conversion unit and the wave energy conversion unit are achieved. Aiming at the significant difference and relevance of wind energy and wave energy in frequency characteristics, time scale and spatial distribution, a pilot frequency wind wave coupling dynamic model is established, and broadband capture of low-frequency wind-induced and high-frequency wave-induced coupling energy is realized under complex sea conditions through multi-degree-of-freedom motion decoupling and state observation, so that the wind-induced and high-frequency wave-induced coupling energy is obtained. The energy utilization rate, the attitude stability and the structural safety of the system are effectively improved, and good robustness and engineering adaptability are achieved.

The invention discloses an SAR sea surface flow velocity inversion method based on physical guidance and data driving fusion, and relates to the field of flow velocity inversion, and the method comprises the steps: carrying out the non-geophysical Doppler frequency shift correction of the Doppler frequency shift observed by a spaceborne synthetic aperture radar, and obtaining the geophysical Doppler frequency shift; predicting based on a wave-induced Doppler frequency shift model according to a radar incident angle, reanalyzed wind direction data, a sea surface 10-meter height wind speed inverted by an SAR (Synthetic Aperture Radar), a simulated wind wave parameter, a simulated surge parameter and a simulated maximum wave parameter to obtain a wave-induced Doppler frequency shift; the wave-induced Doppler frequency shift model is obtained based on physical guidance and data-driven modeling; doppler frequency shift generated by sea surface flow is determined according to the geophysical Doppler frequency shift and the wave-induced Doppler frequency shift; according to the method, the Doppler frequency shift generated based on the sea surface flow is converted to obtain the sea surface radial flow velocity, the wave-induced Doppler frequency shift is accurately removed, and reliable inversion of the sea surface flow velocity is realized.

The present invention belongs to the technical field of wind-induced vibration control of bridges, and provides a one-way friction energy dissipation device for controlling the flutter of large-span bridges. The device is quickly installed before the arrival of extremely strong winds, which can temporarily and significantly improve the flutter safety of the bridge, reduce its own wind-resistant design requirements, and significantly reduce the project cost. After the strong wind, it can be easily disassembled without affecting the beauty of the bridge or interfering with navigation under the bridge. The use of one-way bearings greatly reduces the weight, transportation, loading and unloading, and storage costs of the counterweight. The device can adapt to any static wind displacement, has good robustness, is safe and reliable, economical, fast, efficient and practical, and can be shared by multiple bridges at different times, greatly reducing its own and storage costs. The device can also be used for long-term vibration control of large marine structures such as floating offshore platforms, floating wind turbines, and temporarily docked ships under the combined action of wind and waves, and wind vibration control of gentle photovoltaic structures.

The invention belongs to the technical field of ocean renewable energy power generation, and particularly relates to a floating type storm power generation system control method based on knowledge distillation and a partitioning strategy. Constructing a multi-teacher model system; knowledge distillation and student model training; designing a partition control strategy; designing a target function; designing a weight adaptive mechanism; defining constraint conditions; performing upper layer optimization solution; executing a lower-layer control instruction; and dynamically feeding back a correction mechanism. The method covers all operation and survival working conditions of the combined power generation system, on one hand, the modeling difficulty and complexity of a control model are reduced, the real-time performance and reliability of prediction and control are improved, on the other hand, the zoning control strategy is proposed in combination with the stormy wave condition from the angle of engineering application of the combined system, and the control efficiency is improved. Therefore, the energy utilization efficiency and the operation stability of the floating type wind and wave combined power generation system under complex sea conditions are enhanced.

The invention provides a floating type annular wave-resistant offshore photovoltaic structure. The floating type annular wave-resistant offshore photovoltaic structure comprises arc-shaped wave-resistant structure units, spring connectors, photovoltaic buoyancy tanks, photovoltaic modules, buoyancy tank mooring cables, mooring cables and pile anchors. The plurality of arc-shaped anti-wave structure units are flexibly and annularly connected through the spring connectors to form a floating type annular anti-wave structure; photovoltaic buoyancy tanks are fully paved in the circular ring of the floating type annular wave-resistant structure in parallel, and a photovoltaic module is fixedly mounted on the surface of each photovoltaic buoyancy tank. The structure main body of the novel floating type annular wave-resistant offshore photovoltaic structure adopts arc-shaped wave-resistant structures made of a high-density polyethylene material, the arc-shaped wave-resistant structures are connected into an integral circular ring through spring connectors, photovoltaic modules in the ring are protected and moored, a plurality of macromolecule buoyancy tank mooring cables are adopted in the ring to be connected with photovoltaic buoyancy tanks, and the photovoltaic buoyancy tanks are connected into a whole. The whole structure has certain flexibility and has the advantages of being small in steel consumption, high in weather resistance, low in building cost, high in wind wave resistance, easy and convenient to construct, good in power generation economical efficiency and the like.

The invention belongs to the technical field of ocean engineering and water electrolysis hydrogen production. In order to solve the problem that a traditional model is difficult to deal with dynamic sea conditions, a platform-environment coupling digital twin model is constructed, multi-source monitoring data is fused, and platform motion response is predicted through deep reinforcement learning. And generating anti-storm strategies such as ballast water regulation based on a prediction result, and realizing real-time optimization. According to the method, the evaluation accuracy is improved by 25%, and the strategy response time is lt; under the conditions of 8-level wind and 1.2 m wave height, the motion amplitude of the platform is reduced by 28%, the shutdown frequency of a hydrogen production system is reduced by 75%, and operation and maintenance of the floating platform are promoted to be upgraded to intelligent.

The invention discloses a control method and device of a wind driven generator, a terminal and a storage medium, particularly relates to the technical field of operation control of the wind driven generator, and is used for solving the problem that a supporting structure bears violent asymmetric loads due to dynamic response differences of wind and wave load directions in a marine environment in an existing control method. Wind direction and wave direction data are synchronously obtained in real time, the wind direction change rate is calculated, supporting structure vibration signals are analyzed to recognize wave excitation dominant frequency components, and when it is detected that wave excitation energy suddenly changes and the wind direction change rate exceeds the limit, the wind wave direction difference is analyzed; meanwhile, a wave spectrum energy concentration frequency band is determined by analyzing the tower top movement track, the load asymmetry risk level is evaluated by combining the direction difference and the wave energy concentration frequency band, finally, the yaw speed and the variable pitch speed are adjusted in a self-adaptive mode according to the risk level, and accurate recognition and early warning of the wind wave load direction mismatching working condition are achieved. And the operation reliability of the wind driven generator in extreme weather is improved.

The invention discloses a wind wave combined deepwater laboratory comprehensive system arrangement method, and relates to the technical field of laboratory building design. Comprising the steps that a lifting floating bottom system, a wind generation system, a wave generation system, a trailer system and a crane system are arranged and installed to form a comprehensive system for a storm combined experiment; the lifting floating bottom system is arranged at the bottommost layer of the laboratory and comprises a deep water pool and a liftable floating bottom structure in the pool; the wave making system is arranged on the side surface of the deep pool; the trailer system is mounted above the deep pool and moves along the top surface of the deep pool; the crane system is arranged above the trailer system and installed below the second-layer truss. The wind tunnel power section is located on the second layer, and the wind tunnel experiment section is arranged on the first layer; according to the method, the problem of space interference between large-scale equipment is solved, experimental errors caused by equipment conflicts are avoided, complete implementation of basic functions of the system is ensured, and therefore the accuracy and reliability of experimental data are remarkably improved.

The invention discloses a wind tunnel-pool combined loading floating fan distributed hybrid test method, which comprises the following steps of: establishing a floating fan multi-body / multi-physical field collaborative reduced scale criterion, dividing a floating fan into two independent physical models and two independent numerical models, and placing the two independent physical models and the two independent numerical models in different laboratories; integrating a physical model, a numerical model, a loading system and a measurement system, and building a floating fan physical-numerical distributed hybrid test platform; and carrying out data interaction and closed-loop control on the physical-numerical hybrid test platform. A fan and a floating platform are adopted as two relatively independent test substructures, test loading or computer simulation can be carried out in different laboratories by establishing different similarity criteria and geometric scale ratios, a collaborative online test and pneumatic-hydrodynamic load loading under the coupling action of wind, waves and flow are carried out through network interaction data, and the test efficiency is improved. The technical problems of environment load high-precision simulation and dynamic coupling response in a reduced scale model test are solved.

The invention discloses a strong anti-overturning power generation device and method based on wind wave combined capture, and the device comprises a four-column type semi-submersible fan platform and a wind driven generator located above the four-column type semi-submersible fan platform, and the four-column type semi-submersible fan platform comprises hollow columns. The bottom of the hollow stand column is fixedly connected with the bottom of the outer side stand column through a horizontal column, a floating wave energy absorption system is arranged on the outer side of the outer side stand column, and the output end of the floating wave energy absorption system is connected with the input end of a power generator system through a bevel gear power generation system in the hollow stand column. One end of the floating wave energy absorption system is connected with the spring system in the hollow stand column; the core technical problems that an existing device is poor in stability, high in cost, low in efficiency, weak in adaptability and the like are solved.

The invention provides an all-dimensional multi-layer connecting belt lifting anti-storm deep sea net cage, and relates to the technical field of aquaculture equipment.The all-dimensional multi-layer connecting belt lifting anti-storm deep sea net cage comprises a net cage body and a positioning mechanism used for positioning and installing the net cage body, and the positioning mechanism comprises an annular top frame and a top air bag arranged on the top frame and used for enabling the top frame to float on the water surface; the top frame is connected with a plurality of anchor bodies through a plurality of anchor ropes, each anchor body is anchored to the seabed, a plurality of rails are vertically arranged at the bottom of the top frame, and the rails are arranged in an annular array; the net cage body is arranged between the rails and can move up and down along the rails within the length range of the rails. The net cage aims to solve the technical problems that an existing deep sea net cage is poor in wind wave resistance and prone to damage, the breeding space is of a single-layer structure, the utilization rate is low, and surface environment risks cannot be effectively avoided.

The embodiment of the invention relates to the technical field of ocean energy utilization, in particular to an ocean power generation device and method. The water immersion stand column is used for supporting the wind power generation component; the wave energy power generation component is arranged on the water immersion stand column and can move up and down along the water immersion stand column; and the culture net cage is arranged on the edge of the wave energy power generation component and can move along the edge. According to the ocean power generation device, the wave energy power generation component can generate power through vertical movement of the wave energy power generation component, pitching and yawing of the wind energy power generation component are relieved while complementation of wind energy and wave energy is achieved, and the power generation efficiency and the power generation stability are comprehensively improved. The balance weight of the aquaculture net cage can reduce the gravity center of the wind power generation component and improve the storm resistance of the ocean power generation device. The immersed stand column is not only a wind power generation component foundation, but also a kinetic energy transmission medium for wave power generation, and meanwhile provides an anchoring point for the aquaculture net cage, so that three purposes are achieved through one column.

The invention relates to a ship navigation method and device for resisting wind wave influence, and belongs to the technical field of ships, and the method comprises the steps: carrying out the coupling of first data based on an MMG model, and obtaining a meteorological constraint condition; the ship state quantity change rate is obtained based on the state quantity and the control quantity of the target ship, the state quantity is obtained based on the first data, and the control quantity is obtained based on the propulsive force; constructing a target function based on the error of the state quantity and the error of the control quantity of the target ship according to a model predictive control theory; solving the target function by taking the ship state quantity change rate, the initial state quantity of the target ship, the value range of the control quantity and the meteorological constraint condition as constraint conditions to obtain a control quantity set; obtaining a propeller rotating speed and a rudder angle of the target ship at the next moment based on the control quantity set; and controlling the target ship to sail based on the propeller rotating speed and the rudder angle at the next moment. According to the invention, the accuracy of the ship navigation trajectory is improved.

The utility model discloses an unmanned ship rollover prevention device which comprises two rollover prevention assemblies of the same structure, the two rollover prevention assemblies are symmetrically and fixedly installed on the two side portions of a ship body, each rollover prevention assembly comprises an installation base, an extension module and a driving module, the installation bases are fixedly installed on the side portions of the ship body, and the extension modules are fixedly installed on the side portions of the ship body. A mounting groove is formed in the mounting base, one end of the extension module is fixedly mounted in the mounting base, the extension module is located in the mounting groove, and the driving module is mounted in the ship body and connected with the extension module; according to the anti-rollover device for the unmanned ship, the anti-rollover assemblies are arranged on the two sides of the ship body correspondingly, when the anti-rollover assemblies are unfolded, the buoyancy of the ship body can be effectively enhanced, meanwhile, the base contact area of the ship body and the water surface is enlarged, the overall supporting area of the ship body is enlarged, and the wind wave resistance is improved; the situation that the ship body rolls over due to overlarge storm waves is effectively reduced, then the safety of the ship body is effectively guaranteed, and the possibility that the ship body is damaged is reduced.

The invention discloses an unmanned ship adaptive optimal interference control method based on reinforcement learning, and particularly relates to the technical field of unmanned ship automatic control, and the method comprises the steps: building an unmanned ship trajectory kinematics model based on the position information and heading angle information of an unmanned ship under a geodetic coordinate system, and the corresponding speed information under an unmanned ship appendage coordinate system; the method comprises the following steps: establishing an unmanned ship trajectory dynamics model by considering the control operation of the unmanned ship and the time-varying environment interference problems of wind, waves, flow, unmodeled dynamics and the like in a marine environment in which the unmanned ship is located; introducing a radial basis function neural network based on a set unmanned ship trajectory mathematical model; designing a self-adaptive interference observer to estimate and offset time-varying environment interference in unmanned ship trajectory tracking; based on a radial basis function neural network and an interference observer, an unmanned ship adaptive interference suppression controller is designed by using an adaptive vector backstepping method.

The invention relates to the technical field of floating fans, in particular to a parameter tuning method suitable for a multi-tuned mass damper of a floating fan, which sequentially comprises the following steps of: establishing a system dynamics model; defining an optimization variable and a constraint range; constructing a comprehensive fitness function; initializing a grey wolf population and algorithm parameters; executing a grey wolf position optimization updating mechanism; setting convergence judgment conditions; and outputting the optimal TMD parameter combination. According to the method, structural dynamic characteristics and an intelligent algorithm strategy are fully fused, particularly, spatial arrangement coordinates of the TMD are brought into an optimization variable domain, collaborative design of tuning parameters and arrangement space is achieved, the method is different from a single-parameter or fixed-point optimization mode, the limitation of artificial experience layout is avoided, overall suppression of structural multi-order modal response is achieved, and the method is suitable for large-scale popularization and application. The damping capacity and the stability margin of the fan structure under wind wave flow coupling excitation are improved, cross-modal and multi-source vibration cooperative treatment is achieved on the system response coordination and control strategy level, and the method has the adaptability to offshore wind power scenes.

The invention discloses a ship route multi-target optimization model oriented to a composite sea condition scene, and relates to the technical field of ship route management, comprising the following steps of: acquiring ship navigation state data and marine environment data in real time by using marine monitoring equipment, a sensor network and ship equipment; establishing motion models of the ship under different sea conditions in combination with historical data; according to the method, the dynamic attitude model of the floating obstacle is constructed, dynamic changes such as rolling and pitching of the floating obstacle under the action of stormy waves are captured in real time, and a time-varying risk field is constructed in combination with a trajectory uncertainty ellipse. Compared with a traditional static obstacle processing mode, the model can accurately quantify real-time changes of the dynamic windward area, the resistance coefficient and the influence range of the obstacle, route planning errors caused by neglecting the dynamic characteristics of the obstacle are avoided, the movement state of the obstacle is updated in real time through the dynamic attitude vector, and the obstacle processing accuracy is improved. The ship can avoid the risk area expanded due to the posture change of the obstacle in advance, and the collision probability is remarkably reduced.

An electric ship seaborne charging docking device comprises a waterproof box, a guide plate is detachably connected to one side of the waterproof box in a sliding mode, a plurality of interfaces are formed in the guide plate, inserting connectors are arranged on the guide plate on the outer sides of the interfaces, and guide holes are formed in the guide plate on the two sides of the interfaces. A directional inserting mechanism is arranged in the waterproof box, the directional inserting mechanism comprises a fixing frame installed on the waterproof box, a sliding rod is arranged on the fixing frame in a sliding mode, and end plates are fixedly arranged at the two ends of the sliding rod respectively; a fixing plate is further arranged between the front sides of the end plates, a fixing block is arranged on the front side of the fixing plate, plugs in one-to-one correspondence with the connectors are installed on the fixing block, guide rods are arranged on the portions, on the two sides of the plugs, of the fixing plate, and guide heads are arranged at the front ends of the guide rods. Butt joint position deviation caused by sea stormy waves can be automatically corrected, accurate centering of a charging interface is ensured, meanwhile, butt joint impact is effectively absorbed, and the stability of equipment in a wave environment is improved.

The present invention relates to offshore floating wind-wave complementary power generation technology, in particular to a wind-wave complementary grid-connected optimization method based on VSG technology and feedforward control. A floating wind-wave coupled cooperative power generation system is designed, and the spatiotemporal complementary characteristics of wind energy and wave energy in the marine environment are utilized to improve the utilization rate of the anchor chain system and power transmission and transformation equipment. A nonlinear mathematical model of the power generation power of the floating wind turbine and wave power generation device is constructed. A feedforward control strategy of the floating wind-wave complementary power generation system is designed, and the wind and wave conditions in the medium and far sea areas are obtained by using a laser wind measuring radar and a laser wind measuring radar. The sea conditions near the wind-wave complementary power generation system are predicted in seconds and converted into a feedforward signal for power prediction and wind turbine state adjustment. An inverter virtual synchronous control strategy is designed, and the virtual synchronous control technology is adopted. Virtual inertia and virtual damping coefficient are introduced, and the inverter is used to realize primary frequency modulation, voltage / frequency regulation, and damped oscillation suppression functions, thereby improving the stability of the grid side.

The invention relates to a ship arrival time high-precision prediction method and device based on a long-short-term neural network, and a storage medium, and the method comprises the steps: firstly carrying out the aggregation of an AIS and a navigation log according to hours, carrying out the space matching in a sliding window, and generating a fusion navigational speed; and then inverse distance weighted interpolation is carried out on meteorological data, wind wave parameters are complemented, and ship static information codes are unified. And then the three types of data are synchronized to a unified time sequence axis, after trajectory segmentation and Kalman filtering smoothing, an optimal feature subset is screened through recursive feature elimination and cross validation, the optimal feature subset is used as input to train a bidirectional long-short-term memory network model, and finally accurate prediction of the ship arrival time is achieved. Compared with the prior art, the method has the advantages that the long short-term memory network (LSTM) and the attention mechanism (Attention) are comprehensively utilized, high-precision and real-time prediction of the ETA of the ship is achieved, and the method can be widely applied to scenes such as port scheduling, shipping management and intelligent logistics.

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.

The invention discloses a buoy attitude self-adaptive wind wave calibration method for a typhoon landing path sea area, and relates to the field of ocean monitoring, and the method comprises the steps: obtaining attitude information, original wave height information and wind speed and direction information of a target buoy through a six-degree-of-freedom IMU, a micropressure array wave height meter and a three-axis ultrasonic wind speed sensor carried by the target buoy; compensating the original wave height information based on the attitude information and the wind speed and direction information to obtain compensated wave height information; based on remote sensing inversion data, a storm surge numerical forecasting model or historical tide level data, obtaining a storm surge lifting height of the current area, and taking the storm surge lifting height as a zero drift error of the micropressure array wave height meter; and outputting target wave height data based on the zero drift error and the compensated wave height information. According to the calibration mechanism of fusion compensation and multi-source correction provided by the method, the adaptability and practicability of a traditional buoy system under extreme meteorological conditions are remarkably improved.

The invention provides an offshore wind power floating type floating body with a self-locking assembly structure, and relates to the technical field of offshore wind turbine foundations, the offshore wind power floating type floating body comprises an assembly module, and the assembly module comprises a floating plate and a mounting platform arranged at the top of the floating plate; the floating part is arranged between the floating plate and the mounting platform; the stabilizing component is arranged in the center of the floating plate; the connecting parts are symmetrically arranged on the peripheral side edges of the bottom surface of the floating plate and comprise a first connecting piece and a second connecting piece which are symmetrically arranged on the two sides of the side edges of the bottom surface of the floating plate and are mutually inserted and matched; through the standardized design of the modularized floating plates and the detachable connecting parts, and by combining the port pre-assembly mode and the water body self-assembly mode, the technical bottlenecks that the land transportation of a traditional floating body exceeds the limit, and the offshore installation efficiency is low are solved; a double-self-locking mechanism driven by water pressure of the floating block and triggered by gravity of the heavy block cooperates with the anchoring block to inhibit horizontal displacement, and the balancing weight excites a dynamic balance system of a pendulum effect, so that the key problem that the anti-overturning stability of the floating body is insufficient in a deep sea area stormy wave environment is solved.

The invention discloses a wind wave flow-earthquake coupling load simulation device and method for an offshore wind power system, and relates to the technical field of offshore wind power. The device comprises a comprehensive simulation platform, a model installation area and a data acquisition and monitoring system, wherein the comprehensive simulation platform cooperatively simulates a wind wave flow and an earthquake coupling load through a rectangular water tank, a vibration table system, a wave maker system and a water flow driving device; the model installation area is provided with special installation structures matched with multiple types of foundations such as pile foundations and jacket foundations, and multiple types of sensors are arranged in a matched mode. And the data acquisition and monitoring system realizes data acquisition, analysis and image recognition. According to the method, system safety evaluation is completed through model preparation, coupling load application and data acquisition and analysis. The problems that an existing device is single in simulation and poor in adaptability are solved, and an accurate and reliable experiment means is provided for stability research of an offshore wind power system.