38020 results about "Marine engineering" patented technology

The invention relates to a control method and device for wind load resistance of a mooring unmanned aerial vehicle and a storage medium. The method comprises the following steps: collecting and modeling a mooring unmanned aerial vehicle to obtain a system dynamics model; state estimation is carried out to obtain system wind load disturbance data and expected attitude data; performing optimal control solution on the plurality of mooring points to obtain tension distribution control data of each mooring point; inputting into a discrete time neural network controller for attitude compensation calculation to obtain thrust vector compensation control data; performing adaptive robust control on the attitude of the mooring unmanned aerial vehicle to obtain a rotating speed control instruction of each motor of the four rotors; and performing safety threshold judgment, and when any monitoring data exceeds a preset threshold, outputting a working mode switching instruction and executing safe landing control. According to the invention, a multi-stage safety protection mechanism is established, and reliable operation of the mooring unmanned aerial vehicle under extreme conditions is ensured through real-time monitoring and mode switching.

The invention discloses an electric ship battery pack temperature control method, and relates to the technical field of ship battery pack temperature control, and the method comprises the following steps: arranging a plurality of temperature sensors in a battery pack, monitoring the temperature data of each single battery in real time, and transmitting the temperature information of each single battery to a central processing unit in real time; through multi-sensor arrangement, heat conduction model calculation and intelligent cooling system scheduling, accurate temperature monitoring and dynamic adjustment of the electric ship battery pack are realized, real-time abnormal detection is ensured, and thermal runaway is prevented. The intelligent cooling system accurately adjusts cooling force according to temperature changes, and safety accidents are avoided. Meanwhile, a cooling strategy is optimized, energy consumption is reduced, system efficiency is improved, battery life is prolonged, sailing mileage is increased, maintenance cost is reduced, and long-term stable and efficient operation of the battery pack is ensured.

The invention discloses a deep sea underwater electro-hydraulic actuator (EHA) and a control system thereof. The system provides power through the power source module, balance of system oil pressure and pressure of external seawater is controlled through the pressure compensation module, oil circulation and oil pressure control are conducted through the integrated valve set module, a control instruction of the control module is executed through the execution mechanism module, and the control module conducts cooperative control over the whole system. According to the control system, the unbalanced pressure between the system and the deep sea high-water-pressure environment is compensated through the pressure compensator so as to reduce the influence of the deep sea high-water-pressure environment, meanwhile, the pressure compensator serves as an oil tank to supply oil, miniaturization of the system is achieved, and the reliability of the system during underwater work is improved; according to the deep-sea underwater electro-hydraulic actuator, the mounting positions and internal flow channels of all elements of the integrated valve bank are optimized, the pressure loss of fluid in the flow channels is reduced, and the energy utilization efficiency of the deep-sea underwater electro-hydraulic actuator is improved; the asymmetric hydraulic cylinder can operate in four working conditions of deep sea, and underwater high-precision movement can be completed.

The invention relates to the technical field of high-pressure dredge pump simulation calculation, and discloses a construction and application method of a high-pressure efficient dredge pump simulation calculation model. A model is established based on dynamic fluid-solid coupling parameters (mud pulsating pressure, impeller dynamic stress and the like), soil multiphase rheological parameters (particle phase volume fraction, viscous resistance coefficient and the like) and pipeline transient resistance parameters (transient pressure drop gradient and the like), and factors such as rotating speed-power matching and the like are incorporated to calculate an operation envelope and a critical failure threshold. A multi-physics field coupling analysis system comprising parameter configuration, dynamic simulation (integrating a flow field and a structural vibration solver) and a safety evaluation module is developed, after actually measured data and self-defined parameters are input, dynamic flow velocity distribution, pressure pulsation characteristics and the like are obtained through fluid-solid bidirectional coupling calculation, and an optimal configuration scheme is generated. The system supports database management, multi-rheological model matching and three-dimensional visualization, the simulation precision and the engineering efficiency are improved, and support is provided for performance optimization and safety evaluation of the high-pressure working condition.

A drone pod may receive, stow, and launch a drone. The drone pod may include a housing, a canopy movably coupled to the housing, a platform movably coupled to the housing, and a drone bay. The drone pod may be configured to move the canopy to expose the drone bay and raise the platform relative to a floor of the drone bay to receive the drone, lower the platform toward the floor of the drone bay and move the canopy to enclose the drone bay to stow the drone, move the canopy to expose the drone bay and raise the platform relative to the floor of the drone bay to launch the drone. The drone pod may be mounted on a vehicle. A system may include a drone pod and a drone, wherein the drone pod is configured to receive, stow, and launch the drone.

A checkout system is disclosed. In one aspect, a checkout system includes a cabinet and an input shelf coupled with the cabinet. The checkout system also includes features for detecting a cart approaching the checkout system. The input shelf is arranged to collapse based at least in part on detection of a cart approaching the checkout system.

The invention provides an ocean net cage unmanned ship intelligent inspection method based on multi-source data and environment perception, which comprises the following steps: collecting and preprocessing multi-source ocean environment data of an ocean net cage group area, and simultaneously obtaining net cage distribution information, net cage inspection task requirements and an initial state of each unmanned ship; predicting the number of unmanned ships by using an improved random forest model; adopting an improved genetic algorithm to generate a plurality of optimal inspection paths; intelligently distributing a plurality of optimal routing inspection paths to each unmanned ship, and performing routing inspection on each unmanned ship according to the distributed path; multi-source marine environment data collected by a fixed monitoring station deployed in a net cage group area and a sensor of the unmanned ship can be comprehensively utilized, unmanned ship inspection path pre-planning, intelligent task allocation and dynamic adjustment of the inspection process are achieved, and therefore the inspection efficiency is improved, inspection safety is guaranteed, resource allocation is optimized, and the cost is reduced. And the intelligent level of mariculture management is improved.

The invention discloses a digital twin-driven deep and far sea fan platform prediction operation and maintenance method and system. The method comprises the following steps: acquiring real-time multi-source heterogeneous data of a deep and far sea target fan platform based on a sensor network; constructing a digital twinborn body of a multi-physics field integrated target fan platform, and inputting the real-time multi-source heterogeneous data into the digital twinborn body for simulation processing to obtain fault probability distribution of the target fan platform; and executing an operation and maintenance strategy corresponding to the fault probability distribution. According to the deep and far sea fan platform prediction operation and maintenance method provided by the embodiment of the invention, the deep and far sea fan platform prediction operation and maintenance efficiency is improved.

The invention relates to a data and model fused tower crane displacement response prediction method under the typhoon action, which comprises the following steps: constructing a monitoring system, acquiring actual measurement data of a construction site and a tower crane, and constructing a tower crane finite element model by utilizing a design parameter set of the tower crane; the extreme wind speed under the most unfavorable wind direction of a construction site is obtained based on typhoon full-path simulation and wind field simulation, and the tower crane finite element model is calibrated by analyzing a parameter object needing to be calibrated in the tower crane finite element model through sensitivity, so that the calibrated tower crane finite element model can accurately reflect the response condition of a tower crane structure; a calibrated tower crane finite element model is used for simulating a data set formed by displacement data under the typhoon working condition to serve as a training set, the defect of an extreme weather sample in an actually-measured training sample is overcome, then response prediction of tower crane displacement under the typhoon working condition is achieved by training a CNN-BiLSTM-Adaboost displacement response prediction model, and the method is simple and convenient to implement. The precision and robustness of tower crane displacement prediction under the extreme typhoon working condition are remarkably improved, and sufficient emergency processing time is reserved for a construction site.

The invention discloses a marine geological sediment sampling device and method, and belongs to the technical field of sampling equipment. The marine geological sediment sampling device comprises a bottom frame, wherein one side of the bottom frame is a containing box, and the other side of the bottom frame is an inserting rod; the power box is arranged in the containing box through a sliding sealing structure, and a power element is installed in the power box. A sampling pipe in transmission connection with the power element, a floating assembly installed on the power box and an air pipe in the power box are installed among the multiple insertion rods, when the pressure in the cavity reaches a set value of a pressure valve, the valve is opened, compressed air is sprayed to stress blades through the air pipe to drive a first sliding ring to rotate, a floating plate rotates synchronously, and auxiliary propulsive force is generated; the propelling direction is consistent with the sinking direction of the device, the function of accelerating sinking is achieved, seawater resistance is effectively resisted, meanwhile, in a shallow sea area or a deep sea area, the overall buoyancy of the device is changed by dynamically adjusting the inflation volume in the floating plate, and the device can be prevented from violently shaking or inclining due to too fast sinking.

The invention discloses an unmanned aerial vehicle fan inspection route autonomous planning method, and relates to the technical field of unmanned aerial vehicle inspection, and the method comprises the following specific steps: real-time data acquisition: establishing a data sharing link with a professional marine monitoring mechanism to obtain tide data, deploying local monitoring equipment in an offshore fan group area, and establishing a data sharing link; according to the method, through fusion of dynamic tide compensation, tide prediction and real-time monitoring data can be obtained in real time, and a dynamic marine environment model is constructed, so that marine environment conditions at different tide moments are accurately reflected; therefore, the unmanned aerial vehicle can avoid a risk area where seawater rises and floaters are increased during flood tide, select a proper flight height and ensure safety, and can be close to a fan foundation for detailed inspection during ebb tide, and meanwhile, a safety buffer area is set by utilizing dangerous area information in the model, so that the inspection safety is further improved.

The invention relates to the technical field of offshore wind power, and discloses a bearing performance degradation evaluation method for an offshore wind power foundation structure, which effectively solves the problem of neglecting corrosion heterogeneity in the prior art by acquiring initial three-dimensional geometric point cloud data and historical service data and constructing a first finite element model. The model better fits the actual structure state; the local damage evolution and cumulative effect are simulated by means of a second finite element model, meanwhile, material degradation evaluation is combined, the interaction of three key factors including corrosion thinning, local damage and material mechanical property degradation is comprehensively considered, and the defect that the multi-factor coupling influence is not fully solved in the prior art is overcome; the extreme environment load condition is introduced to construct the third finite element model, the performance degradation law of the structure in the extreme environment can be analyzed, and then the reliability and applicability of evaluation are improved by establishing a mathematical relation model and predicting the full life cycle bearing performance.

The invention relates to the technical field of fatigue evaluation, and discloses an offshore wind turbine blade frequency domain fatigue evaluation method and system based on an MIMO nonlinear dynamic system, and the method comprises the steps: collecting the load data of an offshore wind turbine blade; preprocessing the load data; an MIMO nonlinear dynamic system is established; establishing a dynamic mapping relation between the preprocessed load data and the frequency domain response by using an MIMO nonlinear dynamic system; decomposing the time domain dynamic response data by using a frequency domain decomposition method, and quantifying the influence weight of each frequency band load on the blade stress based on a frequency domain energy distribution matrix to obtain a frequency domain energy distribution function of the total stress; and calculating the fatigue damage of the blade through a frequency domain fitting optimization method based on the frequency domain energy distribution function of the total stress. The method solves the problems that fatigue damage evaluation confidence is insufficient under the multi-load coupling effect and actual engineering requirements are difficult to meet in the prior art, and has the characteristic that the coupling effect of the wind load and the wave load can be accurately processed.

The invention relates to the technical field of ocean engineering and mechanical engineering, in particular to a method and a device for analyzing crack propagation of a fan blade considering a real ocean environment. According to the method, the real marine environment working condition is considered, dynamic simulation analysis is conducted on the fan blade, distribution information of loads borne by the fan blade is determined and loaded on a finite element model of the fan blade, a fatigue hot spot area is determined according to a finite element fatigue damage analysis result, and crack arrangement is conducted. And calculating a stress intensity factor of a crack tip and performing crack propagation simulation according to a finite element analogue simulation result so as to evaluate the fracture damage risk of the fan blade in a real marine environment. The wind turbine blade crack propagation analysis thought under the complex stress condition is provided, equipment faults and risks caused by blade breakage can be prevented, a scientific basis is provided for overhaul and operation and maintenance of a wind turbine, and therefore economic losses caused by failure of the wind turbine blade are reduced.

The invention discloses a full-state wind field simulation system and method for wind resistance detection of an unmanned aerial vehicle. The system comprises a system base, a distribution box, a system control cabinet, a modular wind wall, a protective net and a wind speed and direction sensor. The wind field simulation system is of a cuboid structure, independent fan arrays are embedded in modular wind walls, the three modular wind walls independently generate three single-direction wind fields forming 90-degree included angles, and wind fields of any size and any direction can be generated through space wind field vector superposition. The distribution box provides power support for the ventilation wall to work, and the system control cabinet can independently control the fan arrays. The protective net is fixed on the system base bracket, so that the unmanned aerial vehicle is prevented from causing system damage in the testing process; the wind speed and direction sensor senses wind speed and direction information of a wind field in a test area and quantitatively represents the simulated wind field. According to the invention, a wind field with any size and direction can be generated for an unmanned aerial vehicle wind resistance test, and necessary test platform support is provided for unmanned aerial vehicle wind resistance detection.

The invention provides a cement-based marine floating structure stability control method based on a dynamic water tank adjustment algorithm, which is applied to a dynamic water tank adjustment system of a cement-based marine floating structure, and the system comprises a water tank module, a sensing network, an execution mechanism and a central control unit, the method comprises the following steps: monitoring the change of the water level in the water tank module and the shaking angle data of the cement-based offshore floating structure through a sensing network; the central control unit analyzes the data acquired by the sensing network in real time, predicts the wave load change trend in a period of time in the future, simulates the stress state of the structure, and generates a target water level value of the water tank module in combination with the characteristics of the structure material; according to the target water level value and the real-time water level value, the execution mechanism is controlled to adjust the water level of the water tank module so as to achieve stability control over the cement-based offshore floating structure, water tank adjustment and material characteristics are accurately matched, control failure or structural damage can be avoided, and then the structural stability is improved.

The invention discloses a gravity type submerging net cage parameter design optimization method, and relates to the field of mariculture equipment structure optimization, and the method comprises the steps: collecting the multi-period marine environment data of a target sea area, and constructing an environment load sequence with a time-varying characteristic; establishing a three-dimensional coupling finite element model, performing disturbance analysis on a plurality of structure control parameters, and identifying a key design parameter set based on a response sensitivity function; and constructing a multi-objective optimization model including floating and sinking time control, maximum stress minimization and attitude offset constraint, performing global optimization by adopting an adaptive genetic algorithm, obtaining an optimal parameter solution, substituting the optimal parameter solution into the simulation model for dynamic response verification, and if a response index is converged to a target interval, outputting the optimal parameter solution as final design configuration. According to the method, systematic optimization of structural parameters of the submerging and surfacing net cage can be achieved, the stability and safety of the submerging and surfacing net cage under complex sea conditions are improved, and the method has high engineering applicability.

The invention belongs to the technical field of ships, and particularly relates to a launching barge tower broadside berthing structure which comprises a launching barge body. The launching barge body comprises a main body buoyancy tank in the middle and launching barge towers arranged at four corners of the main body buoyancy tank; the launching barge body can be berthed in the dock platform; and the berthing assembly is arranged on the launching barge tower building, the berthing assembly is arranged on the side, close to the dock platform, of the launching barge tower building, and the berthing assembly can fill and level up a protruding main body structure of the launching barge tower building, so that the broadside structure is flat and can safely berth the dock platform. By arranging the berthing assembly, the bottom of the protruding main body structure is filled and leveled up, so that the broadside structure is flat and can safely berth the dock platform, the broadside structure form of a launching barge tower building is changed, the safety requirement of the berthing dock platform is met, the functions and purposes of the launching barge berthing dock platform are improved, and traditional unsafe operation is eradicated.

The invention provides a ship lock floating bollard embedded part supporting device and a construction method thereof.The ship lock floating bollard embedded part supporting device comprises symmetrically-arranged pre-embedded formworks, guide grooves are formed in the inward opposite sides of the pre-embedded formworks, arc parts are arranged on one sides of the guide grooves, formwork outer edges are arranged on the outer sides of the arc parts, and a detachable supporting tool is arranged between the guide grooves; the supporting tool comprises a tool support, the tool support comprises a main body part, a tightening part is arranged on one side of the main body part, an inner blocking assembly is arranged on the other side of the main body part, a plurality of telescopic tensioning assemblies are arranged on one side of the tightening part, and a plurality of telescopic supporting block frames are symmetrically arranged on the two sides of the main body part. According to the supporting device for the ship lock floating bollard embedded part, safety and controllability of the construction process are achieved through automatic supporting force adjustment and a remote monitoring system, potential safety hazards caused by frequent manual intervention are avoided, the working efficiency is improved, and the problem that a traditional supporting device for the ship lock floating bollard embedded part needs manual adjustment and demolding is solved.

A whole ship strain field rapid reconstruction method using ship motion and discrete strain information can rapidly reconstruct a whole ship structure strain field through fusion analysis of ship motion information and finite discrete strain monitoring data, and provides a more reliable reference basis for ship structure safety assessment and auxiliary decision making. The method comprises the following steps: firstly, acquiring ship motion monitoring data, and establishing a wave time-frequency parameter inversion Kalman filtering model based on ship motion information; secondly, according to the wave height obtained through inversion, the wave pressure load on the surface of the ship body is solved by combining phase parameters and relative positions of the wave surface and the ship body; thirdly, establishing a whole ship structure strain field dynamic reconstruction artificial intelligence model fused with a physical information neural network-finite element method, and formulating a layout strategy of measuring points; and finally, performing network parameter optimization on the PINN-FEM strain field reconstruction model by using strain monitoring data of finite discrete measurement points, and improving the overall calculation precision of the model.

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.

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 discloses a power monitoring regulation and control system and method used in the operation process of a ship lock miter gate, and relates to the technical field of ship locks. The method comprises the following steps: firstly, monitoring the vibration state of each structural member of the ship lock miter gate, calculating a rigidity evaluation value of the ship lock miter gate, adjusting an electric control signal of a proportioning pump according to the rigidity evaluation value, and optimizing the non-deformability of a gate body structure; secondly, the dynamic stress of the door body is monitored, the dynamic stress safety evaluation value of the ship lock miter gate is obtained, the output frequency of the motor is adjusted through the frequency converter, and structural overload can be avoided; and finally, the back pull rod prestress monitoring and adjusting module adjusts the prestress of the back pull rod in combination with the vibration state, the dynamic stress and other characteristic data, so that the stability and the structural safety of the door body are kept. Structural damage caused by excessive vibration or stress overload can be avoided, the service life of equipment is prolonged, and stable operation of a ship lock system is ensured.

The invention discloses a model wide-range attack angle change tail and web support device suitable for an airplane wind tunnel test, which comprises two support modes, namely a curved knife support rod and a web support support rod, an attack angle change mechanism, a lifting compensation mechanism and a mounting base, and is characterized in that a wind tunnel airplane model is arranged at the end part of the support rod, and the support rod is in screw connection with the attack angle change mechanism; the attack angle changing mechanism is connected to the lifting compensation mechanism through the mounting base, and the lifting compensation mechanism is mounted in wind tunnel test equipment. According to the invention, the large-range attack angle change of the airplane model in the wind tunnel test can be realized, and the center is kept unchanged at the height of the wind tunnel test.

The invention relates to the technical field of unmanned systems, and discloses an unmanned ship directional operation system cooperating with unmanned aerial vehicle cruise, and the system comprises an unmanned aerial vehicle module which carries a high-precision sensor and is used for scanning a water area environment in real time and generating a high-precision map; the unmanned ship module is provided with a navigation system and an operation device and is used for executing water surface orientation operation according to the high-precision map; the cloud platform module is connected with the unmanned aerial vehicle module and the unmanned ship module through a wireless communication network and is used for data interaction, task scheduling and remote control; and the intelligent charging shore base is used for providing automatic charging support for the unmanned ship module. A high-precision water area map is generated in real time through the unmanned aerial vehicle module and is transmitted to the unmanned ship module, so that the unmanned ship can optimize the route and the obstacle avoidance operation according to the dynamically updated environment data, and the task execution precision is remarkably improved; therefore, the effectiveness of patrolling, cleaning and monitoring tasks is improved.

The invention provides a shaft power generation and energy storage hybrid power efficiency optimization system for a container ship under multiple working conditions, which is applied to the field of ship energy management, and comprises a working condition strategy module, a fluctuation suppression module and a power distribution module, the working condition strategy module is electrically connected with ship radar navigation equipment and a ship identification system receiver, and the fluctuation suppression module is electrically connected with the ship identification system receiver. The power distribution module is electrically connected with a ship power grid load detector, a main engine rotating speed sensor and an energy storage charge state sensor; according to the invention, by cooperatively regulating and controlling the output power of the main engine shaft power generation equipment, the auxiliary power generation equipment and the composite energy storage equipment, a high-efficiency power calling mechanism for a ship power grid is constructed, so that under the complex ship working condition information, the safety redundancy and reliability of power supply are improved, the utilization efficiency of electric energy is improved, and the energy consumption is reduced. And the fuel consumption is reduced, so that the comprehensive target of energy conservation and emission reduction is achieved.

The invention relates to the technical field of automatic control, in particular to a tower crane variable amplitude-rotation linkage self-adaptive control method oriented to a high wind load environment. The method comprises the following steps: step 1, acquiring an actually measured average wind speed at the height of the tower crane so as to determine a wind-induced coupling torque acting on a rotating shaft of the tower crane; 2, real-time equivalent rotational inertia generated by the dead weight of the cantilever crane, the suspended load mass and the relative position of the cantilever crane is calculated in real time; step 3, obtaining an original variable-amplitude torque instruction output by a variable-amplitude motor of the tower crane; and step 4, utilizing the rotating shaft to couple the rotational inertia so as to update the rotation angular velocity set value of the tower crane in the next control period in real time, and completing the amplitude variation-rotation linkage self-adaptive control of the tower crane. According to the invention, the safety, precision and continuous operation capability of the tower crane under complex construction conditions are improved.

The invention provides a ship surface spraying device. The ship surface spraying device comprises a lifting driving source, a lifting transmission mechanism, a movable walking chassis assembly, a plurality of equipment rooms, a tower, a control tower capable of being installed on the tower in an up-down moving mode, a telescopic arm capable of stretching out and drawing back horizontally and spraying equipment. The walking chassis assembly comprises a walking chassis and a pair of driving wheels installed on the walking chassis in the walking direction perpendicular to the walking chassis, each driving wheel comprises a walking driving source installed on the walking chassis and a rotatable driving wheel body, and the walking driving sources are in transmission connection with the driving wheel bodies. The walking driving sources of the two driving wheels are mutually independent; the multiple equipment rooms, the lifting driving source and the tower are all fixedly installed on the top of the walking chassis, the lifting driving source is in transmission connection with the control tower through the lifting transmission mechanism, the inner end of the telescopic arm is installed on the control tower, and the spraying equipment is installed at the outer end of the telescopic arm. According to the spraying equipment, automatic spraying operation on the outer surface of the ship is achieved, and the spraying efficiency is high.

According to the offshore wind turbine single pile rigidity numerical simulation method considering long-term circulation and scouring, the accuracy and the calculation convenience are both considered in model building through the linear elastic steel pipe pile model and the Mohr-Coulomb soil body model. By calculating the horizontal ultimate bearing capacity of the single pile, combining the ultimate analysis method and the p-y curve calculation method, the influence of different scouring depths on the fan is considered, the horizontal load bearing capacity and inherent frequency evolution of the single pile are comprehensively measured, and a basis is provided for design and safety evaluation. A sandy soil rigidity attenuation model is established for secondary development of Abaqus and verified, and the rigidity change of sandy soil under long-term cyclic loading is considered, so that the simulation precision is improved. And the numerical model is tested and verified to ensure the reliability. And the accumulated lateral displacement of the steel pipe pile can be accurately predicted, the influence rule of cyclic load times, soil elasticity modulus and embedding depth factors on displacement development is disclosed, wind power engineering design optimization is assisted, and economical efficiency and safety are improved.

The present application relates to apparatuses, systems, and methods for mapping utility lines that includes the identification and use of ground assets. Such ground assets may be identifiable aspects along the ground surface that may be of interest or use, including mapping of utility locating. Further, updating to ground asset locations and yaw / orientations may be applied in maps such that utility line positions relative to such ground assets may be more accurately known by future excavation operations.