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530 results about "Mooring system" patented technology

Method and system for analyzing and designing floating type wind power foundation structure

The invention discloses an analysis and design method and system for a floating type wind power foundation structure, and the method comprises the steps: selecting a part of section according to a preliminary design scheme of a floating type wind power foundation, and dividing the section into a plurality of floating body subareas; performing multi-body frequency domain hydrodynamic analysis on the floating body partition to obtain a multi-body hydrodynamic coefficient; calculating a rigidity coefficient at a part of the cross section; a wind turbine generator, a tower drum, a mooring system and the floating type wind power foundation are built into a multi-body coupling model, floating type wind power system time domain coupling analysis is conducted, internal force and stress of part of sections are calculated, the strength of the part of sections is checked, and the design scheme of the floating type wind power foundation is determined. According to the method, on the basis of floating body partition of the floating type foundation, the floating type foundation serves as a multi-body system composed of the multiple rigid bodies, the internal force at the connecting cross section of the multiple rigid bodies is obtained during time domain coupling analysis, analysis and design of the floating type wind power foundation structure are improved, and the design precision and the safety coefficient of the floating type wind power foundation structure are improved.
Owner:华能烟台新能源有限公司 +3

Novel five-stand-column semi-submersible wind power foundation and mooring system thereof

The invention provides a novel five-stand-column semi-submersible type wind power foundation and a mooring system thereof. The novel five-stand-column semi-submersible type wind power foundation comprises an X-shaped buoyancy tank, side stand columns are arranged at the four ends of the X-shaped buoyancy tank, a center stand column is arranged in the center of the X-shaped buoyancy tank, and the four side stand columns are distributed in a central symmetry mode relative to the center stand column; a tower drum is arranged on the center stand column, and a wind turbine generator set is arranged at the top end of the tower drum and converts wind energy into electric energy. An outer platform is further arranged on the peripheral face of the joint of the center stand column and the tower drum. The number of side stand columns providing stability in the prior art is increased from three to four, and the waterplane inertia moment is increased by nearly 50% under the condition that the waterplane area is not changed; the stress of the structure is completely transferred to the X-shaped floating box, so that the gravity center of the structure is lowered; meanwhile, communication of the side stand columns and the middle stand columns is achieved through the design that the deck channel and the outer platform are staggered in elevation, and follow-up operation and maintenance are guaranteed; and finally, '8 * 1 'distributed mooring is put forward to replace '4 * 2' symmetrical mooring, and mooring constraint optimization is guaranteed.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD +2

Deep and far seawater suspension oil and liquid storage device and underwater oil storage method thereof

According to the deep and far seawater suspension oil and liquid storage device and the underwater oil storage method thereof, a layered tank body structure is adopted, and a load adjusting cabin, a flexible oil storage cabin and a water storage cabin are arranged from top to bottom. The load adjusting cabin is used for dynamically adjusting the net buoyancy of the device through seawater feeding / discharging to reduce the load of the mooring system; the oil storage cabin adopts a flexible storage bag to adapt to volume change and is linked with the water storage cabin through a movable composite heat preservation partition plate, the partition plate comprises an active heating layer and a phase change material layer, when the oil temperature is too low, the active heating layer directionally heats crude oil, the phase change layer absorbs dissipated heat, latent heat is released during external low-temperature impact to buffer temperature drop, and dynamic temperature control is achieved. The device is moored and fixed through a gravity anchor, and multiple types of sensors are arranged to monitor the posture, stress, oil temperature and leakage state of the tank body in real time. The problems of oil storage tank deformation, high pour point oil heat preservation and mooring stability under the deepwater high-pressure environment are solved, and the device has the advantages of being low in construction cost, high in environmental adaptability and efficient in operation and maintenance and is suitable for safe storage and transportation of deep and far sea oil and gas resources.
Owner:TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL

Floating platform tension leg mooring system

The invention relates to the technical field of mooring equipment, in particular to a floating platform tension leg mooring system which comprises at least three sets of tension tendons connected with a floating platform, and each tension tendon is composed of a steel cable locking device, a steel cable, a mooring connecting arm and a universal joint base from the upper platform end to the lower anchoring end. The tension tendons are connected with the floating platform through the steel cable locking devices, accurate adjustment of tension is achieved through the tension adjusting locking connectors, the tension consistency of the tension tendons is achieved, the tension adjusting locking connectors can be locked on the steel cable locking devices, and one ends of the tension adjusting locking connectors are directly connected with the steel cables. According to the floating platform tension leg mooring system, through the design of the tension adjusting locking connectors, the tension of each group of tension tendons can be accurately adjusted, and it is ensured that the tension of each group of tension tendons is kept consistent. Therefore, the stability and the reliability of the whole mooring system are improved, and the platform movement deviation caused by uneven tension is reduced.
Owner:OFFSHORE OIL ENG CO LTD

Rapid optimization design method for deep and far sea floating type offshore integrated platform mooring system

PendingCN120124125AGeometric CADDesign optimisation/simulationPython (programming language)Mooring system
The invention relates to a rapid optimization design method for a deep and far sea floating type offshore integrated platform mooring system, which comprises the following steps of: preliminarily designing a mooring scheme according to environmental conditions such as wind waves and flows and requirements such as an integrated platform design foundation, and then performing corresponding optimization; the specific optimization process comprises the steps that the non-dominated genetic algorithm and numerical calculation software are combined, the optimization process is divided into static analysis and dynamic analysis, static analysis is conducted firstly to reduce the initial range of parameters, then dynamic analysis is conducted to determine the optimal design scheme, the genetic algorithm and mooring analysis software are combined on the basis of the Python programming language, and the optimal design scheme is obtained. In the whole analysis process, only an initial parameter range needs to be set, the optimal design scheme in the parameter range can be obtained, and intelligent optimization of the design scheme of the mooring system is achieved.
Owner:DONGFANG ELECTRIC(FUJIAN)INNOVATION INST CO LTD

Floating fan anchor chain optimization method and device based on genetic algorithm and medium

The invention relates to the field of ocean energy development, and discloses a floating fan anchor chain optimization method and device based on a genetic algorithm and a medium, and the method comprises the steps: obtaining the installation data of a floating fan system; based on the installation data of the floating fan system, a full-coupling numerical model of the mooring system is established by adopting CFD software; a genetic algorithm is adopted to optimize the full-coupling numerical model, and mooring optimization parameters are obtained; the mooring optimization parameters are applied to actual installation of the floating type draught fan system; according to the method, the high-precision full-coupling numerical model is established through the advanced CFD technology, the performance of the floating fan system in the complex marine environment is comprehensively and accurately predicted and evaluated, meanwhile, the mooring system is optimized through the genetic algorithm, the optimal parameter combination is found, the stability and reliability of the system are greatly improved, and the method is suitable for popularization and application. Powerful support is provided for application and development of the floating fan technology under deep sea and severe sea conditions, and remarkable beneficial effects are achieved.
Owner:中国地质大学深圳研究院

Gravity type variable-length seabed single-point mooring connecting device of floating fan

A gravity type variable-length seabed single-point mooring connecting device of a floating fan comprises a floating body with at least two pulley fairlead devices, a single-point anchor arranged on the seabed and connected with a rotatable device, and at least one weight located in water below the floating body. Wherein the heavy block is connected with the single-point anchor through a mooring rope passing through the pulley fair lead. The offshore mooring system is small in seabed coverage area, environment-friendly, high in mooring system efficiency, safer, more reliable, practical and feasible, has a wind indicator function, and can be used for offshore mooring positioning of the floating type wind power platform with the water depth ranging from 50 m to 300 m or even larger than 1500 m.
Owner:SHANGHAI JIAOTONG UNIV

Tension leg type offshore wind power platform and tendon dynamic balance adjusting method

The invention discloses a tension leg type offshore wind power platform and a tendon dynamic balance adjusting method.The wind power platform comprises a center stand column, side buoys, a floating bridge and tendons, a plurality of ballast tanks are arranged in the floating bridge and the side buoys, and a plurality of emergency water inlets are formed in the bottom of the floating bridge and the tops and the bottoms of the side buoys; a ballast tank communicating opening which can be selectively communicated with the buoy ballast tank is formed in the lower part of the floating bridge ballast tank close to the buoy; and a ballast system is arranged in each ballast tank, and the ballast systems can be used for carrying out pressure discharge on the ballast tanks or selectively transferring water in any ballast tank to other ballast tanks. The internal ballast can be selectively adjusted through a natural flowing mode and / or a mechanical mode based on the tendon tension, the tendon failure position and the tendon failure number can be judged, an emergency control strategy is formulated according to the tendon failure condition, the service life of a mooring system is prolonged, and the safety of the mooring system is improved. And the self-storage performance of the tension leg platform can be improved when the mooring system breaks down.
Owner:HARBIN ENG UNIV +1

Multi-wing-plate shared mooring anchor foundation suitable for wave energy device

The utility model discloses a multi-wing-plate shared mooring anchor foundation suitable for a wave energy device, and relates to the technical field of ocean engineering, the multi-wing-plate shared mooring anchor foundation comprises an anchor cover located on the upper portion, a sleeve in the middle and a shared anchor foundation on the lower portion, the anchor cover comprises a circular plate, a connecting rod arranged on the top face of the circular plate and a cylinder arranged on the bottom face of the circular plate, and the cylinder is sleeved with the sleeve. The sleeve is connected with the anchor cover through a chain, the shared anchor foundation is a barrel with two open ends, a wing plate is arranged on the outer wall of the barrel in the axial direction, an inserting groove matched with the wing plate is formed in the lower portion of the sleeve, the sleeve is sleeved with the barrel, and a plurality of anchor eye connecting anchor chains are arranged on the outer wall of the barrel to form an array group shared anchoring system. After the shared mooring anchor foundation penetrates into a seabed by a certain depth, the anchor cover and the sleeve are lifted and removed, the shared anchor foundation is embedded in the seabed, the anchor cover and the shared anchor foundation are both installed in the sleeve, vertical penetration and lifting can be better achieved, the anchor cover and the sleeve are connected through the chain, internal suction force can be released during lifting, and the anchor cover and the sleeve are connected through the chain. And the dismounting difficulty is effectively reduced.
Owner:POWERCHINA HUADONG ENG CORP LTD

A system and method for measuring real-time meteorological and oceanographic data using a buoyage network

PCT designated stage expiredWO2025115027A1BreakwatersWaterborne vesselsInternal memoryMooring system
The present invention provides a system for measuring real-time meteorological and oceanographic data using a buoyage network for smart ports and harbours. It consists of a moored floating station or moored buoy, or network of buoy-based measurement stations (A) moored at the port or harbour waters with the marine navigation and land-based measuring station (B) mounted at jetty or wharf or quay wall of port and harbours. The buoy-based system (A) is equipped with a cylindrical steel buoy structure featuring a mast (7) and is secured using a two-point mooring system. The present system comprises of an integrated monitoring and data transmission system that collects the real-time meteorological and oceanographic data from the sensors and processes the acquired data based on calibration, enabling accurate and reliable measurements. The processed data is then stored in the system's internal memory for analysis and transmitted to a remote-control station.
Owner:INDIAN INST OF TECH MADRAS

Combined type shared mooring system of wave energy device array

A combined type shared mooring system of a wave energy device array comprises a wave energy device basic module and a shared mooring module, and the wave energy device basic module comprises a buoy, a main floater, a power generation chamber cabin and a mooring chassis which are arranged in a matched mode; a buoy is arranged above the power generation chamber cabin, the main floater is fixedly connected with the power generation chamber cabin, and a closed space is formed in the main floater and can provide buoyancy for the wave energy device. The buoy reciprocates under the action of waves to drive the wave energy device in the power generation chamber cabin to generate power; the mooring chassis is in a regular hexagon shape, is formed by welding steel frames and is fixedly installed at the bottom of the power generation chamber cabin. The shared mooring module comprises a shared mooring rope, a bottom mooring rope, an anchor chain, an anchoring base station, a buoyancy adjusting oil bag, a shared mooring balancing weight and a bottom mooring balancing weight, wherein the shared mooring balancing weight and the bottom mooring balancing weight are arranged in the middle of the mooring rope.
Owner:SHANDONG UNIV

Integrated modeling method and system for floating fan and medium

The invention discloses an integrated modeling method and system for a floating type fan and a medium. An integrated modeling method for a floating type draught fan comprises the steps that an initial model of the floating type draught fan is obtained, and the floating type draught fan comprises an upper draught fan system, a tower, a floating type platform and a mooring system; and converting the initial model of the floating type fan into an integrated model of the floating type fan, including: converting the initial model coordinates of the upper fan system into the coordinate system of the tower to form a model of the upper fan system part in the integrated model; converting the initial model coordinates of the floating platform to a coordinate system of the tower to form a model of the floating platform portion in the integrated model; transforming initial model coordinates of the mooring system to a coordinate system of the tower to form a model of the mooring system portion in the integrated model; and constructing an integrated model based on the converted models of the upper fan system part, the floating platform part and the mooring system part and the initial model of the tower.
Owner:SHANGHAI JIAOTONG UNIV

Mooring system and wind generating set

The utility model relates to a mooring system and a wind generating set, the mooring system is used for being connected with a floating foundation, the mooring system comprises a first mooring assembly and a second mooring assembly, the first mooring assembly comprises a first anchor chain and a first counterweight part, the first counterweight part is connected to the first anchor chain, the first anchor chain comprises a first end part and a second end part, and the first end part is used for being connected with the floating foundation; the second mooring assembly comprises a fiber cable and a floating body, the floating body is arranged on the fiber cable, and one end of the fiber cable is connected with the second end of the first anchor chain; the third mooring assembly comprises a traction section and an anchoring part, one end of the traction section is connected with the end, away from the first anchor chain, of the fiber cable, the other end of the traction section is connected with the anchoring part, and the traction section comprises one of a steel wire rope and a second anchor chain. The embodiment of the utility model provides a mooring system and a wind generating set, the mooring system can be suitable for shallow water requirements, and the reliability of the mooring system can be improved.
Owner:ZHEJIANG GOLDWIND SCI & TECH CO LTD

Single point mooring system liquid slip ring spring energy storage sealing ring optimization design method

The invention relates to the technical field of electric digital data processing, in particular to a single point mooring system liquid slip ring spring energy storage sealing ring optimization design method which comprises the following steps: establishing a two-dimensional axial symmetry model of a liquid slip ring spring energy storage sealing ring; the peak contact stress, the linear contact stress and the maximum shear stress of the liquid slip ring spring energy storage sealing ring under the actual working condition are obtained; establishing a sealing performance evaluation system of the liquid slip ring spring energy storage sealing ring; screening out key structure parameters to form a data set; constructing a back-propagation neural network model, training the weight and bias of the back-propagation neural network model, evaluating the trained back-propagation neural network model, and finally obtaining an optimal parameter combination and a finite element model based on the optimal parameter combination. According to the method, the optimal parameter combination meeting the sealing performance requirement can be determined, so that the overall sealing effect is improved, and the sealing reliability is improved.
Owner:TIANJIN UNIV

Novel offshore wind-light-wave energy comprehensive complementary power generation structure system

The invention discloses a novel offshore wind-light-wave energy comprehensive complementary power generation structure system which comprises a vertical axis wind power generation module, a solar photovoltaic power generation module, a point absorption type wave energy power generation module, a floating platform and a mooring system. A point absorption type wave energy power generation device is arranged in the middle of the floating platform, and the mooring system is connected with the floating platform so as to keep the floating platform at the sea position. According to the novel offshore wind-light-wave energy comprehensive complementary power generation structure system, wind energy, solar energy and wave energy can be fully utilized, the cost per kilowatt-hour is effectively reduced, pollution and consumption are avoided, and application and popularization are suggested.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY

Ship hydrodynamic response numerical simulation method and system considering effects of complex wave field and automatic mooring system

The invention relates to the technical field of numerical simulation ship response, in particular to a ship hydrodynamic response numerical simulation method and system considering the effects of a complex wave field and an automatic mooring system. Firstly, ship radiation potential and hydrodynamic coefficients are obtained based on a three-dimensional potential flow theory and a boundary element method, and wave field information at a berth is obtained in combination with a Boussinesq wave theory; the time domain wave force is solved through the Haskind-Relation theory, and an automatic mooring numerical model integrated with a PD controller is established to calculate the automatic mooring force and torque; and finally, constructing a ship six-degree-of-freedom time domain motion equation based on the data, and solving by adopting a four-order Runge-Kutta method to obtain a time domain response result. The hybrid Boussinesq-Panel technology is adopted, the wave disturbance evaluation accuracy is improved, the blank that existing simulation does not consider an automatic mooring system sufficiently is filled up, arrangement, parameters and control strategies of the automatic mooring device can be flexibly adjusted and secondarily developed, applicability and flexibility are high, and the method is suitable for large-scale popularization and application. And reliable decision support can be provided for procurement and deployment of automatic mooring equipment of a port.
Owner:DALIAN UNIV OF TECH

Watercraft mooring system

A watercraft mooring system comprising a plurality of interchangeable mooring members for the temporary mooring of one watercraft to another watercraft or one watercraft to a stationary object such as a dock. The interchangeable mooring members comprising connecting rod member embodiments with adjustable lengths and connecting rod members without adjustable lengths, vacuum-handle member embodiments that provide an initial vacuum and a continuous vacuum to one or more vacuum cup assemblies, and a cleat connector member embodiment that is interchangeable with a vacuum-handle member. Embodiments of vacuum-handle member providing up to three points of omni-directional pivot functionality between the present invention and a temporarily moored watercraft.
Owner:CERAOLO CHRISTOPHER G

Constant tension mooring control integrated simulation method and digital prototype system

The invention discloses a constant tension mooring control integrated simulation method and a digital prototype system. The system comprises an integrated simulation model, a three-dimensional visualization system, a QT interaction interface and an AQWA verification model. According to the integrated simulation model, sub-simulation models of ships, constant tension winch control, mooring and environment are constructed and integrated through OpenModelica, a multi-physics field coupled integrated simulation model is established, and integrated simulation of the constant tension mooring control system is achieved; the three-dimensional visualization system builds a three-dimensional virtual model of a ship, a winch, a mooring rope, a wharf and a marine environment based on a Unity 3D virtual engine, and three-dimensional visual dynamic display of a simulation result is realized; the QT interaction interface is combined with visual dynamic presentation, and ship motion, winch state and other parameters and control PID parameters are displayed in real time. According to the invention, joint dynamic analysis and control optimization of the ship mooring system in a complex marine environment are realized.
Owner:JIANGSU UNIV OF SCI & TECH

Floating photovoltaic mooring method and mooring device

The invention relates to the field of floating type photovoltaics, and discloses a floating type photovoltaic mooring method and device, and according to the mooring method, an anchoring point, a mooring rope and an adjusting assembly are provided; an anchoring point is arranged at the preset elevation of the bank slope, the first end of a mooring rope is fixedly connected to the anchoring point, and the second end of the mooring rope is connected with the floating photovoltaic module; the tension value F of the mooring rope is monitored in the water level change stage, the tension of the mooring rope is dynamically adjusted through the adjusting assembly, water is automatically injected / drained according to the water level change to maintain the pre-tightening tension F1, and the mooring rope and the floating type photovoltaic assembly are limited. The device can adapt to water level fluctuation, automatic sliding adjustment is achieved through gravity and buoyancy balance by means of the floating body, elastic elements are not needed, and fatigue failure can be avoided; closed-loop adjustment is formed by monitoring tension feedback of the mooring rope, and it is ensured that the mooring system is in the optimal tensioning state all the time. Moreover, a sliding rail or an anchoring point does not need to be arranged on the reservoir wall, the anti-seepage layer is protected, and the reservoir basin anti-seepage structure is prevented from being damaged.
Owner:CHINA THREE GORGES CORPORATION

Coupling dynamic response calculation method for floating platform and mooring system

The invention discloses a coupling dynamic response calculation method for a floating platform and a mooring system, and relates to the technical field of ship and ocean engineering, and the method comprises the steps: determining a water elasticity response estimated value of the floating platform at a (T + 1) th response updating step at a current simulation moment; the dynamic response of the mooring point is obtained through conversion of the water elasticity response estimated value, and the mooring load of the mooring system in the (T + 1) th response updating step is obtained through calculation; solving the hydroelastic response of the floating platform by using the mooring load of the (T + 1) th response updating step; and when the dynamic response iterative coupling calculation reaches a convergence state, obtaining a dynamic response numerical simulation result and entering a next simulation moment. According to the method, the coupling effect of the mooring system and the floating platform under the common influence of rigid body motion and elastic deformation of the floating platform is considered, and the coupling dynamic response of the floating platform and the mooring system of the floating platform can be predicted more accurately.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER

Mooring system for water surface floating body

A mooring system for a water surface floating body is arranged on the periphery of the floating body, the overall shape of the plane of the floating body is a polygon, and the number of the edges of the polygon is n1. Comprising main cables, the number of the main cables is n2, n2 is equal to n1, the main cables are arranged corresponding to the edges of a floating body, the multiple main cables are sequentially connected and surround the periphery of the floating body, and the main cables are in the shapes of parabolas recessed towards the direction of the floating body; the anchor chain group is arranged between the main cable and the floating body, the anchor chain group comprises a plurality of anchor chains arranged at intervals, one end of each anchor chain is connected with the outer side of the floating body, the other end of each anchor chain is connected with the main cable, and the anchor chains are symmetrically arranged along the center line of the main cable; and the two adjacent main cables are connected together by means of the buoys. The floating body on the water surface bears the water flow force effect through the anchor chain, the main cable of the mooring system corresponds to the edge of the floating body, the main cable is in a parabola shape, and the main cable can gather the stress of the anchor chain and can surround the periphery of the floating body to protect the floating body.
Owner:TIANJIN RES INST FOR WATER TRANSPORT ENG M O T

Overall construction process for floating bridge

Disclosed in the present invention is an overall construction process for a floating bridge. The process comprises: procedure I, in which a plurality of floating bridge sections are assembled on a water surface, with each floating bridge section being assembled by welding; procedure II, in which the plurality of floating bridge sections are assembled into a floating bridge body; procedure III, in which a shore connection cable-stayed bridge, a bridge abutment, and a suction anchor of a mooring system are constructed; procedure IV, in which a shore-side end of a floating bridge transition section is connected to a water-side end of the bridge abutment; procedure V, in which one end of the floating bridge body is connected to a water-side end of the floating bridge transition section; procedure VI, in which the other end of the floating bridge body is connected to a water-side end of the shore connection cable-stayed bridge; and procedure VII, in which the floating bridge body is connected to the mooring system. In the procedures IV and V, the cooperation of four winches and four cable piles and the guide of a guide mechanism are used; and in the procedure VI, the cooperation of the four winches and the four cable piles is used. The present invention can effectively ensure smooth and safe transition between two ends of a floating bridge column body and a shore connection structure.
Owner:CCCC THIRD HARBOR ENGINEERING CO LTD

An offshore floating wind power and photovoltaic centralized mooring system and design method

The present invention discloses an offshore floating wind power and photovoltaic centralized mooring system, comprising: a floating wind turbine, a floating wind turbine mooring system, a floating photovoltaic array, and a floating photovoltaic mooring system. The floating wind turbine mooring system includes a mooring cable with one end connected to the floating wind turbine, and the other end of the mooring cable is connected to an anchor point; the floating photovoltaic mooring system includes an upper mooring cable, a lower mooring cable, and a rigid rod. One end of the upper mooring cable is connected to the floating photovoltaic array, the other end of the upper mooring cable is connected to the rigid rod, one end of the lower mooring cable is connected to the rigid rod, and the other end of the lower mooring cable is connected to the anchor point. The present invention also discloses a design method for an offshore floating wind power and photovoltaic centralized mooring system. The present invention reduces the construction difficulty, improves the construction efficiency, enhances the side structure strength of the floating photovoltaic array, and increases the installed capacity of the floating offshore photovoltaic.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD

Self-adaptive mooring cable, manufacturing method and self-adaptive mooring method

The invention relates to the technical field of floating type platform mooring systems, and discloses a self-adaptive mooring cable, a manufacturing method and a self-adaptive mooring method.The self-adaptive mooring cable sequentially comprises a center main bearing layer, a middle protection layer and an outer self-adaptive regulation and control layer from inside to outside. The central main supporting layer is composed of synthetic fiber cables with high tensile strength; the middle protective layer wraps the periphery of the main bearing layer, is formed by weaving fiber materials and is used for preventing external media from invading; the outer-layer self-adaptive regulation and control layer covers the periphery of the protective layer and is woven into a net-shaped structure by shape memory alloy wires; the shape memory alloy woven mesh is configured to be capable of dynamically adjusting the overall rigidity of the mooring cable through thermoelastic martensite phase transformation based on environment temperature changes, and creep deformation of the synthetic fiber cable is slowed down. Through the synergistic effect of the three-layer structure, the structural stability and performance consistency of the mooring cable in long-term use are guaranteed.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD

A floating offshore wind turbine system

The present invention provides a floating offshore wind turbine system, including a basic buoy and an offshore wind power generation component, and also includes a mooring system and a structural vibration control system, wherein the mooring system includes a plurality of tensioned mooring chain groups fixed on the basic buoy, and the structural vibration control system includes a first connection platform arranged on the wind turbine tower and a plurality of semi-tensioned mooring chain groups fixed on the first connection platform. The floating offshore wind turbine system provided by the present invention, through the additional structural vibration control system, not only adds a plurality of support points specifically for the offshore wind power generation component, but also can effectively absorb the environmental load acting on the offshore wind power generation component and the vibration of the whole system through the structural vibration control system, reduce the overall motion response of the floating offshore wind turbine system, improve the stability of the floating offshore wind turbine system, thereby improving the power generation efficiency and service life of the offshore wind power generation component.
Owner:SHENZHEN UNIV +1

Offshore floating type fan mooring system optimization method based on proxy model

The invention relates to the technical field of offshore wind power equipment, and discloses an offshore floating type wind turbine mooring system optimization method based on a proxy model, and the method comprises the following steps: S1, determining key design parameters; s2, sampling to generate design points; s3, establishing a total index function of multi-target coupling; s4, generating a sample database through numerical simulation; s5, constructing an agent model by using a Kriging method; s6, calling the proxy model to search an optimal solution by adopting a differential evolution algorithm; s7, performing numerical simulation verification on the optimal solution and judging convergence; and S8, if not, updating the database and returning to S5 for iteration, and if so, outputting the optimal configuration. According to the method, the problems that a traditional optimization method is high in simulation calculation cost and too long in consumed time are solved, searching is carried out through the proxy model instead of high-precision simulation, the verification iteration step is combined, the optimization efficiency is greatly improved while the result accuracy is guaranteed, and the multi-target mooring scheme with the optimal comprehensive performance can be efficiently obtained.
Owner:ZHEJIANG UNIV

Full-coupling numerical simulation system and method for wind and wave hybrid energy obtaining system

The invention discloses a full-coupling numerical simulation system and method for a wind and wave hybrid energy obtaining system, and relates to the field of data analysis, and the method comprises the steps: generating an aerodynamic load of a current period based on incoming flow wind speed and coupling dynamics response data of a previous simulation period; based on preset mooring system parameters and the coupling dynamics response data of the previous simulation period, generating a mooring load of the current period; in the random wave field, determining the hydrodynamic force of the floating foundation entity and the wave energy power generation entity, and generating a wave load; determining a PTO force based on the relative motion between the power generation platform and the wave energy power generation entity; and taking the aerodynamic load, the mooring load, the wave load and the PTO force as external force terms in the same time domain kinetic equation for unified solution, and obtaining a coupling kinetic response of the current simulation period. According to the full-coupling numerical simulation system and method for the wind and wave hybrid energy obtaining system, the simulation precision of the simulation system can be improved, and the overall calculation efficiency of the system is improved.
Owner:QINGDAO DMAR OCEAN ENG

Easily-released floating type offshore hydrogen-based energy production platform and working method thereof

The invention discloses a floating type offshore hydrogen-based energy production platform easy to release and a working method thereof, and relates to the field of offshore new energy development. The production platform comprises a platform body, a floating body foundation, a mooring system, a quick plugging device and a dynamic cable. The mooring system comprises at least one mooring assembly, and the quick plugging device is installed between the platform body and the dynamic cable. An auxiliary propeller is installed on one side wall of the floating body foundation and used for moving and adjusting when the platform is positioned and released. The multiple mooring assemblies are connected with a releasing device through anchor chains to achieve disconnection of anchoring positions, the production platform can be withdrawn out of an anchoring area, and platform damage caused by anchor chain breakage in extreme stormy wave environments such as typhoons is avoided. Electrical connection between the dynamic cable and the offshore wind power plant is cut off through the quick plugging device, and the cable is cut off in a non-destructive manner, so that repeated deployment cost caused by traditional cutting is avoided; after release, the production platform can be repositioned through the tug, anchor chains and cables do not need to be cut and relaid, and operation and maintenance are convenient.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD +1

Single shared anchor mooring systems and installation method for floating offshore wind turbines

Two types of single shared anchor mooring systems and installation method for station-keeping of floating offshore wind turbines are disclosed. The first type has one anchor on the seabed, a plurality of mooring lines, three-dimensional fairlead devices, and pendent gravity units. Each of the mooring lines runs from a first end attached to the corresponding pendent gravity unit suspended in mid-water vertically upward through the corresponding three-dimensional fairlead device attached to the floater and extends downward to a second end attached to the anchor. The mooring line has a constant tension equal to the submerged weight of the pendent gravity unit. The second type has one anchor on the seabed, one pendent gravity unit suspended in mid-water above the anchor, a plurality of mooring fairleads and interconnected mooring lines. Each of the mooring lines runs upward from a first end connected to the anchor through the mooring fairlead attached to the floater and extends downward to a second end connected to the pendent gravity unit. The mooring systems are secured to the floater at quayside, towed-out with the floater, and installed by lowering the anchor and the pendent gravity units under gravity at the offshore site.
Owner:WANG JIN

Construction ship operation parameter optimization method and system based on storm coupling effect

The invention discloses a construction ship operation parameter optimization method and system based on the wind wave coupling effect, and belongs to the technical field of construction ships. The multi-body dynamic model comprises a rigid body model constructed based on parameters of a ship body and a hanging object, an elastomer model constructed based on parameters of a hanging rope and a nonlinear spring model constructed based on parameters of a mooring system; the multi-body kinetic equation comprises a translation analysis module and a rotation analysis module based on a rigid body model; the tension analysis module is based on an elastomer model; the nonlinear deformation analysis module is based on a nonlinear spring model; the environment load calculation module is used for firstly calculating the acting force of the environment load on the workboat, and then taking the calculation result as the input of the multi-body dynamic model; the motion response solving module solves the motion response of the multi-body dynamic model through a numerical integration method; the mooring force calculation module calculates tension distribution of each cable based on the motion response and nonlinear characteristics of the mooring system.
Owner:TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG +3