85 results about "Marine structure" patented technology

The invention relates to the technical field of ocean structure monitoring, in particular to a method for monitoring the scouring degree of a pile foundation of an offshore wind power station through bubble tracing, which comprises the following steps of: 1, constructing a bubble feature data acquiring an underwater image, manually segmenting and selecting key bubbles, extracting contour features of the key bubbles and expressing the contour features by vectors, a Zernike moment is used for grouping according to shapes, and a bubble feature database is constructed; and 2, identifying underwater bubbles: obtaining an underwater background image, constructing a dynamic background, obtaining an image containing suspended particles, extracting a foreground main body through a background subtraction method, comparing contour features of the foreground main body with a bubble feature database, and screening out the bubbles. By introducing an innovative method combining image recognition, feature modeling and physical inversion, the key problems of bubble misjudgment, track loss, inaccurate flow velocity and the like in a traditional bubble tracing technology are effectively solved, and high-precision, low-cost and automatic monitoring of the scouring process of the offshore wind power pile foundation is achieved.

The invention relates to a double-pile foundation seabed dynamic response simulation method under the wave action based on a multi-physics field coupling model. According to the method, a Wave-Stratum-Seabed Interference (WSSI) model integrating wave-seabed-structure interaction is constructed, the interaction between waves and a double-pile foundation under different pile spacing ratios and incoming flow deflection angles is simulated on an OpenFOAM platform through a finite volume method (FVM), and then the dynamic response of a seabed is analyzed. The model comprises a wave sub-model and a seabed sub-model based on the Biot three-phase consolidation theory, and key parameters such as free surface rise, dynamic wave pressure, vertical pore water pressure, vertical effective normal stress and liquefaction depth can be accurately calculated. An effective simulation tool and method are provided for pile foundation design and safety evaluation in ocean engineering, optimization of the pile foundation layout is facilitated, and the stability of an ocean structure is improved.

The invention discloses marine concrete resistant to chlorine salt erosion and a preparation method thereof, and belongs to the technical field of building materials. The marine concrete is prepared from the following components in parts by mass: 280 to 350 parts of cementing material, 1100 to 1200 parts of aggregate, 150 to 180 parts of mixing water and 2.5 to 4.0 parts of high-efficiency water reducing agent, and the cementing material is prepared from 210 to 270 parts of ordinary Portland cement, 50 to 70 parts of superfine slag powder and 10 to 20 parts of modifier on the basis of the cementing material; on the basis of the modifier, the modifier is prepared from 30 to 45 parts of hexacalcium aluminoferrite, 25 to 35 parts of metaettringite, 20 to 35 parts of tobermorite, 3 to 6 parts of nano attapulgite and 2 to 4 parts of a nano composite material. The components can accelerate the early hydration of cement and the volcanic ash reaction process in the concrete hardening process, so that the concrete can form a compact microstructure in the curing period and cooperate with the curing effect of a hydration product on chloride ions, thereby remarkably improving the chloride ion penetration resistance of the concrete, prolonging the service life of the structure and improving the concrete quality. The method is suitable for port engineering, maritime work structures and buildings in salinized soil areas.

The invention relates to an open boundary circulating flow and reconfigurable terrain collaborative maritime work scouring intelligent test system and test method, a maritime work structure test model is installed at the center position of a main body structure inner cavity test section, and a set area with the maritime work structure test model as the center is used as a main test section; the open-boundary circulating flow generation system realizes back supplement and closed-loop operation of circulating water channels of the left bank and the right bank; a multi-beam three-dimensional terrain scanner is installed on the side portion of the large-span electric measuring bridge system, and sand bed terrain and scour pit three-dimensional shape data are obtained; a three-dimensional acoustic Doppler current meter and a capacitive wave height meter are installed on the track type instrument bridge measuring system, and multi-dimensional dynamic monitoring is conducted on the sand bed terrain and the scouring pit; the multidirectional irregular wave generation system is used for simulating regular waves and irregular waves in an offshore environment. According to the invention, the aspects of structure scale, terrain coupling and measurement and control feedback intelligence are comprehensively upgraded, and a more real and reliable test basis with strong engineering adaptability is provided for research on scouring stability of major ocean engineering.

The invention discloses a marine building foundation scour risk assessment and control method. The method comprises the steps that S1, the scour risk of a marine building foundation is defined; s2, marine building foundation scouring risk factor identification and risk estimation; s3, determining a scour risk grade standard, an acceptance criterion and a control strategy of the marine building foundation; s4, constructing a foundation scouring risk evaluation model, and evaluating the foundation scouring risk grade of the marine building; and S5, performing decision-making control on the scouring risk of the marine building foundation. According to the method, a reasonable scour protection strategy is provided for main risk factors, and the construction and operation cost of the marine building is reduced.

The invention discloses a modified nano hydrated calcium silicate chloride ion curing agent as well as a preparation method and application thereof, and belongs to the technical field of chemical materials. The curing agent is composed of 65-75 parts of synergistically modified nano calcium silicate hydrate, 10-20 parts of mesoporous silica with a high specific surface area, a composite dispersion stabilizer with a specific ratio, and an active activator compounded by triethanolamine and anhydrous sodium sulfate. The nano calcium silicate hydrate is synergistically modified by gamma-aminopropyltriethoxysilane and sodium dodecyl benzene sulfonate, so that the nano calcium silicate hydrate has the excellent performance that the zeta-potential absolute value is greater than or equal to 25 mV, the dispersity is high, and the chloride ion binding capacity is improved by greater than or equal to 40%. Through the synergistic effect of all the components, the technical problems that an existing chloride ion curing agent is low in adsorption capacity, poor in selectivity, prone to agglomeration in concrete and the like are solved, and the chloride ion curing agent is particularly suitable for improving the durability of the concrete in harsh chloride salt environments such as port engineering and maritime work structures.

The invention discloses an ocean structure design method based on bidirectional fluid-solid coupling. The ocean structure design method comprises the steps that S1, sea conditions are determined based on a sea area where an ocean structure is located; s2, establishing a fluid domain calculation fluid dynamic model and a structural domain finite element model of the ocean structure; s3, on the basis of the established fluid domain calculation fluid dynamic model and structural domain finite element model of the ocean structure, executing iterative bidirectional fluid-solid coupling simulation calculation for each sea condition to obtain a simulation result; s4, analyzing the simulation result, and identifying the maximum value and the spatial position of the key load parameter on the ocean structure; and S5, modifying and optimizing the design of the ocean structure based on the maximum value and the spatial position of the key load parameter to obtain the ocean structure meeting the requirements. According to the method, the structural performance of the ocean platform can be systematically evaluated with high precision, so that a designer is guided to carry out more scientific and reasonable design modification and optimization.

This invention provides a mobile wind tunnel device capable of outputting uniform droplets, belonging to the field of icing and anti-icing technology for ships and marine structures. The device includes: a stabilizing rectangular cavity and a transitional circular-to-square cavity, the stabilizing rectangular cavity and the transitional circular-to-square cavity being connected. The circular opening of the transitional circular-to-square cavity is connected to a variable frequency fan. A honeycomb rectifier and multiple airfoil spray frames are installed inside the stabilizing rectangular cavity, with the honeycomb rectifier located between the variable frequency fan and the airfoil spray frames. This mobile wind tunnel achieves uniform droplet output, maintaining a stable airflow field through the honeycomb rectifier; by arranging heating tape in the water and air pipes inside the airfoil spray frames, the wind tunnel device can operate for extended periods in low-temperature environments without icing; and a control cabinet controls wind speed, water pressure, and air pressure to obtain icing data for the ship's superstructure under different wind speeds and droplet diameters.

The application relates to the technical field of ocean engineering, in particular to a wave load calculation method for a near-free-surface cylindrical structure in a marine environment, which can accurately predict a circular rod and the like in a marine structure located in a region near a free surface, is especially suitable for wave force estimation of a horizontally arranged cylindrical structure under the action of transient strong nonlinear waves in an extreme wave environment, and improves the precision of structure stress prediction and the safety of engineering design, and specifically comprises the following steps: a wave force calculation model is established based on a classic Morison equation, a focused wave field is constructed, wherein the focused wave is constructed by superimposing multiple regular wave components, so that an idealized free liquid surface profile is formed, and then horizontal wave force and vertical wave force are respectively calculated in the focused wave field, compared with the prior art, the method has wider applicability, can effectively process wide-frequency multi-component focused wave field modeling, and is especially suitable for application of engineering early design and parameter sensitivity analysis.

The invention provides a movable chain block lifting installation platform device and method, and relates to the technical field of installation and production of ocean structures, the movable chain block lifting installation platform device comprises a main body support, a storage rack and a lifting rack, the storage rack is arranged on the main body support in a sliding mode, and the lifting rack is arranged in the storage rack and drives the storage rack to move longitudinally; a lifting joint for driving the lifting frame to move longitudinally is connected to the upper portion of the body support, a chain block is hung on the lifting joint, the end, away from the lifting joint, of the chain block is connected with the bottom of the lifting frame, the upper portion of the storage frame penetrates through the top of the body support and then is provided with a storage plate, and the storage plate is provided with a tool holder plate for fixing a structure. The heavy object mounting and welding requirements under the condition that the space is limited can be met, the working fatigue problem caused by long-time side-lying overhead welding of workers in the actual production process can be solved, the construction efficiency is improved, and positive application value and actual economic effectiveness are achieved for steel transportation and construction production in the manufacturing industry.

The present invention relates to a modular cladding slab for marine structures for restoring marine habitats, comprising: a three-dimensional design with structural heterogeneity having a simple, medium or high complexity based on groove or relief features, their quantity, variable width, undulation and direction; in-situ installation or securing means; and bio-enhanced concrete, formed by a mixture of cement for the marine environment and calcium carbonate (CaCO3), as a material for manufacturing by moulding.

The application provides a three-way adjustable ship body segment fixing device and a working method thereof, and relates to the technical field of ship and marine structure construction. The device comprises a three-way adjustable ship body segment fixing platform and four movable segment lifting lug fixing devices. The movable segment lifting lug fixing device comprises a segment fixing module, a dynamic positioning module and an electric locking module. The dynamic positioning module is connected with the segment fixing module and limits the setting position of the segment fixing module. The electric locking module is connected with the segment fixing module. The segment lifting lug to be fixed is installed on the segment fixing module through the electric locking module. The application realizes accurate positioning and locking of the segment structure in an automatic manner, reduces the error and labor intensity of manual operation. Automatic control not only improves the stability and safety of the lifting process, but also significantly improves the work efficiency, and meets the requirements of modern ship construction for high efficiency and safety.

The invention discloses a 1200 MPa-grade high-strength plastic stainless steel plate and a preparation method thereof, and belongs to the field of metal materials. In order to solve the technical problems that the strength and corrosion resistance of an existing stainless steel material are difficult to match in room-temperature and low-temperature environments and the like, the mechanical property and corrosion resistance of the stainless steel plate are well balanced by accurately controlling the cold rolling reduction; and a low-cost solution can be provided for application of the stainless steel plate in the fields of ocean structures, aerospace, energy, chemical industry and the like.

The present invention relates to a steel material for use as a material for building structures, ship structures, marine structures, and the like. More specifically, the present invention relates to a low-yield-ratio steel material having excellent toughness in a welding heat-affected zone, and a method for manufacturing the same.

The invention discloses a device and a method for synchronously measuring wave force and pile foundation scouring in real time, the device is used for a single-pile physical model in an ocean structure, the device comprises a vertical cylinder, an upper cylinder, a lower cylinder, a fixed pulley, a slidable bolt, a fixed chassis, a high-elastic rubber pipe and a steel wire rope, and a gap is reserved between the upper cylinder and the lower cylinder; when the bottom round hole of the upper cylinder and the top round hole of the lower cylinder are aligned by utilizing the slidable bolt, the bolt is automatically located in the lower cylinder under the traction of the high-elastic rubber tube on the fixed chassis, and the wave force borne by the cylinders can be measured after the force sensor is fixed at the top end of the upper cylinder. After the lower cylinder is buried in a sand bed, pile foundation scouring can be achieved under the condition of incoming waves and incoming flows. The device can simultaneously complete measurement of wave force and pile foundation scouring, solves the problem that pure wave force cannot be measured due to bottom bed stress after the pile foundation is buried in a sand bed, can better reproduce actual conditions faced by the pile foundation of an ocean structure, and lays a foundation for wave force research under pile foundation scouring.

The application relates to the technical field of data processing, and particularly discloses a marine structure construction optimization control method and system based on digital twinning. The application obtains measured strain data by establishing a stress sensing network, simultaneously constructs a first coupled finite element reference model on the digital side to obtain simulation strain data, screens sensitive parts based on the difference between the measured strain and the simulation strain, constructs an error function, and optimizes welding heat source parameters by using an inversion algorithm to obtain a second coupled finite element reference model that is corrected and calibrated, generates residual stress response samples under various welding sequences by using the second reference model, trains an AI agent model, realizes rapid prediction of residual stress under different construction paths, calls the AI agent model to evaluate the remaining welding sequence according to the current construction state, and selects the path with the smallest residual stress increment as the target construction path, so that stress active control and path optimization in the construction process are realized, and construction safety and efficiency are improved.

The application provides a kind of marine structure flow field simulation method, the method comprises: generating calculation grid and object surface grid for flow field simulation;Initialize object surface grid level set function field;According to flow field information, calculate the force condition of object surface, calculate object translation vector and rotation vector;Complete data mapping of object surface grid to calculation grid, obtain the level set function field of calculation grid;According to the obtained calculation grid level set function field, divide cell type;Carry out geometric calculation to cut cell, based on cut cell flow field reconstruction strategy, complete fluid cell, cut cell estimated speed update;Solve pressure Poisson equation, obtain pressure field, pressure gradient, update velocity field according to the obtained pressure gradient, obtain the final velocity field satisfying continuity condition.The marine structure flow field simulation method of the application greatly improves the numerical simulation efficiency of complex structure flow field, and reduces the implementation difficulty.

The invention provides a top tension riser damage identification and positioning method based on wavelet packet transformation, and belongs to the technical field of ocean structure intelligent monitoring. Firstly, a vibration acceleration response signal of a preset node of the riser is collected and preprocessed; using a 6-order multi-Bezi wavelet as a mother wavelet, setting a four-layer wavelet packet decomposition layer number, and iteratively decomposing the preprocessed signal through a Mallat algorithm to obtain 16 frequency band component signals; secondly, calculating wavelet packet component energy of each node under 16 frequency bands by utilizing the sensitivity of the method to structural rigidity damage based on an arch bridge damage identification method based on the energy of the Singxiang wavelet packet; solving the wavelet packet energy curvature of each node through a variable quadratic difference value; and finally, the difference between the curvature and the curvature of the same node of the healthy riser is obtained to obtain an IWPECD index, the distribution rule of the index along the length of the riser is analyzed through five-point moving average smoothing, the node corresponding to the peak value is the damage position of the riser, and effective damage positioning of the jacking tension riser is achieved.

The invention relates to a multi-layer telescopic lattice counter device for monitoring the scouring depth around a pile foundation and a monitoring method. The multi-layer telescopic lattice counter device comprises a lattice counter body which is fixed to the outer side of the circumference of a foundation pile; the grid counter body comprises an inner-layer ruler and a plurality of outer-layer rulers, the inner-layer ruler is of a solid cylindrical structure, the outer-layer rulers are hollow cylindrical shells, the tops of the outer-layer rulers are closed, the bottoms of the outer-layer rulers are open, and the outer-layer rulers are coaxially arranged outside the inner-layer ruler in a sleeving mode in sequence; the top of the inner-layer scale is connected with the closed end of the adjacent outer-layer scale through an electromagnetic release device, and the top of the closed end of the outer-layer scale is also connected with the closed end of the adjacent outer-layer scale through an electromagnetic release device. When the lattice counter body begins to work, the inner-layer scale is actively released through remote control and then slides down along with the depth of a scouring pit by means of gravity, the outer-layer scale electromagnetic release device is activated layer by layer, and self-adaptive depth expansion is achieved. A more efficient and reliable solution is provided for pile foundation scouring monitoring, and powerful technical support is provided for safe operation of ocean structures.

The invention provides a superelastic spiral fiber based on nickel-titanium alloy section turning waste and a preparation method and application thereof, and relates to the technical field of calcination processing of superelastic spiral fibers for underground and underwater engineering concrete structures. The preparation method comprises the following steps: (1) soaking the nickel-titanium alloy section turning waste in a sodium dodecyl benzene sulfonate solution, and then cutting and calcining to obtain pretreated hyperelastic nickel-titanium alloy turning waste fibers; and (2) carrying out cold and hot circulation on the pretreated superelastic nickel-titanium alloy turning waste fiber in ice water and boiling water to obtain the target superelastic spiral fiber. According to the method disclosed by the invention, the nickel-titanium alloy turning waste is subjected to simple and low-cost reprocessing by combining the phase change characteristic of the nickel-titanium alloy and the unique three-dimensional spiral shape of the nickel-titanium alloy turning waste; the superelastic reinforced fiber of the high-performance damage self-repairing cement-based composite material, which is suitable for infrastructure construction, repair or reinforcement in severe environments such as ocean structures, bridge structures and subsea tunnels, is creatively prepared.

The present application relates to the technical field of research on the interaction between ocean engineering structure and wave, in particular to a method for predicting wave slamming pressure distribution of shallow-submerged circular-arc bottom section ocean engineering component, comprising: obtaining wave slamming pressure data of the circular-arc bottom section ocean engineering component and extracting pressure envelope, establishing spatial coordinates along the direction of the structure bottom plate, adopting double Gaussian function and linear function superposition to construct component pressure distribution model, determining model parameters through nonlinear fitting, and predicting wave slamming pressure spatial distribution according to the fitting result. μ 1, μ 2The present application can effectively reflect two main pressure peak values existing in the actual wave slamming process through the superposition form of double Gaussian function, can clearly locate the potential slamming hotspot area of the structure bottom, and can be applicable to different wave periods and structure clearance conditions through parameter calibration, and can provide more reliable wave load prediction basis for ocean structure design.

The present application relates to the technical field of ocean engineering, in particular to a load loading method and device for ocean structure based on numerical simulation. The load loading method for ocean structure based on numerical simulation provided by the present application calculates the ocean environmental load of the ocean structure through the numerical simulation of the numerical model, thereby realizing the fluid simulation calculation of the ocean structure in the real ocean environment, obtaining the load time history suffered by the ocean structure, and considering the grid elements of the numerical model when establishing the finite element model, thereby facilitating the loading of the pressure data corresponding to as many grid elements as possible according to the grid parameters of the two models, so that the change of the load of the model at different nodes in the real ocean environment can be more accurately fitted, and thus the safety performance of the ocean structure can be more accurately evaluated, which is helpful to improve the design safety and reliability of the ocean structure.

The invention belongs to the technical field of ocean engineering structure durability research, and discloses a test method for simulating the bonding durability of an FRP (Fiber Reinforce Plastic) rib in an actual service environment of an ocean concrete structure. Comprising the steps of carrying an FRP rib with a crack channel and a concrete bonding test piece, accelerating a corrosion device and calculating the time of leading a member concrete crack to the FRP rib. A loading support is installed at the loading end of the bonding test piece, and a force application nut is rotated to apply a load to a required value. A loading test piece is placed on a water tank supporting frame filled with seawater, after the test piece is soaked for theoretical time, a port of a U-shaped pipe is opened to enable seawater to flow through the U-shaped pipe, seawater is simulated to seep to an FRP rib bonding interface through a concrete crack, and the whole process that the corrosion mode of the FRP rib is evolved from an alkaline environment to an alkali-salt coupling environment is achieved. The method effectively solves the problem of unreliable test conclusion caused by large difference between the corrosion state of the bonding interface of the FRP rib and the corrosion environment in a maritime work structure actually serving in the ocean in a traditional accelerated corrosion test.

1. Name of the product in this design: Ship cleaning robot (quad propeller propulsion). 2. Application of this design: This design is used for underwater cleaning, inspection and maintenance of ship hulls, marine structures, etc. 3. The key design elements of this product are the combination of shape, pattern, and color. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The design for which protection is sought includes color.

The application relates to the technical field of data prediction, and discloses a marine foundation bearing capacity prediction method and system based on scour pit fractal reconstruction and deep learning, a terminal and a storage medium.The method comprises the following steps: acquiring measured three-dimensional point cloud data, performing interpolation and reconstruction, and generating a three-dimensional scour pit digital geometric model; based on the three-dimensional scour pit digital geometric model, the foundation limit bearing capacity under different scour pit morphologies is calculated, and a scour pit morphology quantitative descriptor is extracted to form a data pair sample library; the deep learning model is trained by taking the data pair sample library as a training set, and a trained deep learning prediction model is obtained; the newly detected scour pit morphology data is input into the deep learning prediction model after being reconstructed and quantitatively described, and the foundation prediction bearing capacity under the current morphology is obtained. The application realizes end-to-end rapid prediction from detection data to bearing capacity evaluation, and provides an efficient and accurate decision support tool for the safe operation and maintenance of marine structures.

The application discloses a marine structure SPMT layout method based on a model structure analysis method, belongs to the technical field of SPMT layout, and is used for SPMT layout. The method comprises the following steps: determining a SPMT layout area range as a general constraint condition based on physical information of a deck piece; modeling a physical model of the deck piece on the physical information of the deck piece; and judging the distribution of a main beam in the deck piece. The method further comprises the following steps: taking a SPMT layout state as a chromosome structure to initialize a population; calculating hydraulic balance; connecting the physical model of the deck piece with a physical model of each SPMT; performing finite element analysis to obtain a structural strength value; taking the hydraulic balance and the structural strength value as two variables of a fitness function; and obtaining a unique solution of the SPMT layout state. Through automatic calculation, the method obtains a solution set of the best compromise scheme of the overall structural safety and hydraulic balance, and obtains a relatively optimized SPMT layout scheme of a marine structure.

The application discloses a kind of ocean element profile classification method based on clustering analysis algorithm, belong to marine data processing technical field, for ocean element profile classification, including obtaining original ocean element profile sample and pre-processing and standardization;Covariance matrix is constructed to standardization profile, and principal component is selected using cumulative variance contribution rate, and feature vector is constructed;Expectation maximization algorithm is used to estimate Gaussian mixture model parameter;Classification result is verified based on bayesian information criterion and physical interpretability;Ocean structure partition or water mass identification is carried out based on classification result.The application combines principal component analysis with Gaussian mixture model, significantly reduces the calculation complexity while retaining the main vertical variation information of the profile, does not need artificial preset label, has strong adaptability, interpretability and generalizability, can objectively and efficiently complete ocean element profile automatic classification, and is suitable for water mass identification, acoustic environment assessment and other various marine applications.

The invention discloses an arbitrary-shape fixed structure wave load identification method based on field wave elevation, relates to the field of ocean engineering structure health monitoring, and aims to solve the problem that a traditional method depends on incident wave information and is only suitable for a simple structure. The method comprises the following steps: averaging M surface elements on a wet surface of a discrete structure; pre-calculating and storing a transfer matrix which only depends on the structure geometry, the measuring point position and the wave frequency; wave elevation time history data of W measuring points are collected in real time, and main frequency components are reserved through fast Fourier transform; calling a corresponding transfer matrix, and obtaining a surface element pressure Fourier component through matrix multiplication; and performing inverse transformation to synthesize a pressure time history and integrating to obtain a total wave load. The invention also discloses a system for realizing the method, electronic equipment, a computer program product and a storage medium. The method is high in universality, does not need incident wave information, is efficient in calculation, and is suitable for various fixed ocean structures.

The invention discloses a seabed slope wave scouring resistance supergravity test method which comprises the following steps: inserting an ocean platform model into the slope surface of a seabed slope model through supporting piles at the bottom of the ocean platform model, and integrally placing the ocean platform model at a test end in a supergravity model box; the flushing box type wave generator is arranged at the wave making end of the supergravity flushing model box; the monitoring sensor system is arranged at set positions of the seabed slope model and the offshore platform model and is used for monitoring soil pressure, pore pressure and displacement changes in the whole damage process of the seabed slope model; a monitoring industrial camera is arranged and used for recording the form change of the seabed slope model in the whole process of being scoured and eroded. According to the test method, the catastrophe process of the seabed slope and the ocean structure under wave scouring can be truly simulated, the scouring, erosion, morphological evolution and parameter dynamic response process of the seabed slope can be truly recorded, the test precision is high, and the repeatability is high.

Techniques are disclosed herein for minimizing movement of a fixed marine structure. Using the technologies described, a wind turbine may be mounted on a fixed marine platform (e.g., a fully restrained platform (FRP)) that is secured by mooring lines that may be maintained at a tension to restrain movement of the platform due to environmental loads (e.g., wind, waves, etc.). The mooring lines may be attached to the platform with assemblies that include a stopper attached to the mooring line and engaged with a mooring porch. The stopper may be positioned and / or repositioned to adjust the tension on the connected mooring line and secured in the adjusted position using the various systems and techniques described herein.