Anchor system design method and anchor system design device based on ship

Abstract

The invention provides an anchor system design method and device based on a ship, and the method comprises the steps: importing a three-dimensional model of each assembly of a ship anchor system, and carrying out the assembly, and obtaining an anchor system simulation design model; according to the anchor system design scheme, a three-dimensional ship body model of a ship body main structure is constructed; assembling and positioning the three-dimensional ship body model and the anchor system simulation design model to obtain an assembled three-dimensional experimental model; performing a motion performance simulation experiment on the three-dimensional experiment model to obtain first experiment data; when the first experimental data meet ship design requirements, exporting an anchor system simulation design model and performing 3D printing to obtain a solid model; carrying out an actual anchor pulling experiment on the solid model to obtain second experiment data; when the second experimental data meet the ship anchor pulling parameter requirements, an anchor system design scheme is determined, and an anchor system production drawing is output. Through combination of three-dimensional simulation and 3D printing, the anchor system design verification period is shortened, and the physical model manufacturing cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of ship technology, and in particular to a ship-based anchoring design method and anchoring design device. Background Art

[0002] With the increasing variety and types of vessels, the design, manufacture, and verification of mooring systems (anchor systems) present a constant stream of challenges. These issues have long plagued design, manufacturing, and precision management departments, resulting in a significant expenditure of manpower and resources on repeated empirical trials. The entire process lacks standardized procedures, leading to low efficiency and high costs.

[0003] Traditionally, anchor system design verification relies primarily on a "detailed design first, physical wood model testing later" approach. Specifically, the detailed design of the anchor system is completed first, followed by a physical wood model test to verify the rationality of the anchor system layout and identify potential problems that may arise during actual anchor testing. However, this wood model testing method has significant drawbacks: it is time-consuming and labor-intensive, requires specialized materials and manual model construction, and provides delayed feedback on test results. Once a problem is discovered during testing, it is often necessary to retroactively modify the detailed design drawings or even recreate the wood model, resulting in lengthy design iteration cycles and a significant waste of manpower, material resources, and time, severely restricting design efficiency and optimization progress. Summary of the Invention

[0004] In view of this, the purpose of the present application is to provide a ship-based anchoring design method and anchoring design device to overcome at least one of the above-mentioned defects.

[0005] In a first aspect, an embodiment of the present application provides a ship-based anchor system design method, the method comprising: importing three-dimensional models of various components of a ship anchor system and assembling them to obtain an anchor system simulation design model; constructing a three-dimensional hull model of the main structure of the hull according to the anchor system design scheme; assembling and positioning the three-dimensional hull model and the anchor system simulation design model to obtain an assembled three-dimensional experimental model; performing a motion performance simulation experiment on the three-dimensional experimental model to obtain first experimental data; when the first experimental data meets the ship design requirements, exporting the anchor system simulation design model and performing 3D printing to obtain a physical model corresponding to the anchor system simulation design model; performing an actual anchor pulling experiment on the physical model to obtain second experimental data; when the second experimental data meets the ship anchor pulling parameter requirements, ending the simulation experiment, determining the anchor system design scheme, and outputting the anchor system production drawings corresponding to the anchor system design scheme.

[0006] In an optional embodiment of the present application, the anchor system simulation design model is designed in the following manner: each component in the three-dimensional model is classified into anchor system standard parts and anchor system non-standard parts; the size parameters of the anchor system standard parts are set to generate a standard part model that meets the size parameters; the geometric contours of the anchor system non-standard parts are defined according to the size of the three-dimensional hull model of the main hull structure, and the matching parameters of the anchor system non-standard parts and the standard part model are set to obtain a non-standard part model; based on the connection relationship between the components, the standard part model and the non-standard part model are virtually assembled to generate an anchor system simulation design model.

[0007] In an optional embodiment of the present application, the three-dimensional experimental model is determined in the following manner: the deck plane of the three-dimensional hull model of the main structure of the hull is determined as the spatial positioning reference plane; each component in the anchor system three-dimensional model is positioned to the spatial positioning reference plane through coordinate system alignment; geometric constraints are applied to the positioned components, and the geometric constraints include rotational pair constraints between the anchor chain and the anchor windlass; based on the spatial positioning reference plane and the geometric constraints, a fully assembled three-dimensional experimental model is generated.

[0008] In an optional embodiment of the present application, the first experimental data is determined in the following manner: a fluid domain range is defined, the fluid domain range is an area covering a preset anchor chain length around the anchor system retraction and deployment path, and the fluid domain range is used to simulate the dynamic impact of water flow on the anchor chain during the retraction and deployment of the anchor system; the fluid domain inlet flow velocity is set to the wind speed and the outlet pressure, and the fluid domain inlet flow velocity is set to the wind speed and the outlet pressure to reproduce the water flow environment under different sea conditions; the retraction and deployment action is defined for the anchor system model, and the position of the main hull structure is fixed at the same time; the water flow resistance to each section of the anchor chain during the retraction and deployment process is calculated, and the maximum tension of the anchor chain during retraction and deployment extracted from the simulation data of the anchor chain stress sensor is obtained; based on the anchor chain tension, the stress distribution of the anchor windlass support structure is calculated, and the maximum stress value of the anchor windlass support structure is extracted; the contact force change between the anchor body and the seabed simulated plane monitored by the contact force sensor is obtained, and the anchor system retraction and deployment time and the contact stability parameter between the anchor and the seabed are calculated, and the anchor system retraction and deployment time is the time from the complete release of the anchor chain to the bottoming of the anchor body.

[0009] In an optional embodiment of the present application, the first experimental data includes the maximum tension of the anchor chain during retraction and extension, the maximum stress value of the anchor windlass support structure, the anchor retraction and extension time, and the contact stability parameters between the anchor and the seabed.

[0010] In an optional embodiment of the present application, the second experimental data is obtained in the following manner: the 3D printed solid model is fixed to the deck simulation area of ​​the test platform to ensure that the anchor windlass mounting hole coincides with the platform reference plane; an electric winch is deployed at the tail of the test platform as a traction device, the winch traction rope is connected to the end of the anchor chain, and the applied tension value is monitored in real time by a tension sensor; the design tension is calculated according to the anchor weight parameters in the anchor system design scheme, and the tension is applied at a constant speed by the winch to conduct an anchor pulling experiment; during the anchor pulling process, the tensile deformation, grip depth and abnormal sound are obtained to generate the second experimental data; the tensile deformation is measured by the displacement sensor for the anchor chain, the grip depth is measured by the depth meter for the anchor, and the abnormal sound is captured by the acoustic sensor for the sound during the anchor pulling process.

[0011] In an optional embodiment of the present application, the method further includes: for key components of the anchor system, using different materials, and preparing a solid model of the same component through the same 3D printing process; performing quality inspection on the prepared solid model to obtain inspection results, wherein the inspection results include dimensional accuracy, surface roughness, mechanical properties, printing time and material cost parameters; based on the inspection results, analyzing the characteristics of each material in terms of mechanical properties, printing efficiency and cost, and determining a preset anchor system component type; based on the preset anchor system component type, adjusting the support structure density, designing the connection interface of the block combination structure of each component, selecting a common material as a connector between each component module, and assembling to obtain an assembled cruise ship anchor system model.

[0012] In a second aspect, an embodiment of the present application further provides a ship-based anchor system design device, the device comprising: an anchor system simulation design model obtaining module, for importing three-dimensional models of various components of a ship anchor system and assembling them to obtain an anchor system simulation design model; a three-dimensional hull model construction module, for constructing a three-dimensional hull model of the main structure of the hull according to the anchor system design scheme; a three-dimensional experimental model obtaining module, for assembling and positioning the three-dimensional hull model and the anchor system simulation design model to obtain an assembled three-dimensional experimental model; a first experimental data obtaining module, for performing a motion performance simulation experiment on the three-dimensional experimental model to obtain first experimental data; a physical model obtaining module, for exporting the anchor system simulation design model and performing 3D printing when the first experimental data meets the ship design requirements, to obtain a physical model corresponding to the anchor system simulation design model; a second experimental data obtaining module, for performing an actual anchor pulling experiment on the physical model to obtain second experimental data; an anchor system production drawing output module, for ending the simulation experiment, determining the anchor system design scheme, and outputting the anchor system production drawing corresponding to the anchor system design scheme when the second experimental data meets the ship anchor pulling parameter requirements. In a third aspect, an embodiment of the present application further provides an electronic device comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the memory communicate through the bus, and when the machine-readable instructions are executed by the processor, the steps of the method described above are performed.

[0013] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described above are executed.

[0014] The ship-based anchor system design method and anchor system design device provided in the embodiments of the present application include: importing three-dimensional models of various components of the ship anchor system and assembling them to obtain an anchor system simulation design model; constructing a three-dimensional hull model of the main structure of the ship according to the anchor system design plan; assembling and positioning the three-dimensional hull model and the anchor system simulation design model to obtain an assembled three-dimensional experimental model; conducting a motion performance simulation experiment on the three-dimensional experimental model to obtain first experimental data; when the first experimental data meets the ship design requirements, exporting the anchor system simulation design model and 3D printing it to obtain a physical model corresponding to the anchor system simulation design model; conducting an actual anchor pulling experiment on the physical model to obtain second experimental data; when the second experimental data meets the ship anchor pulling parameter requirements, ending the simulation experiment, determining the anchor system design plan, and outputting the anchor system production drawings corresponding to the anchor system design plan. By combining three-dimensional simulation with 3D printing, the present application shortens the anchor system design verification cycle and reduces the cost of physical model production.

[0015] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A flow chart of a ship-based anchoring design method provided in an embodiment of the present application; Figure 2 A schematic structural diagram of a ship-based anchoring design device provided in an embodiment of the present application; Figure 3 A flowchart for determining a three-dimensional experimental model provided in an embodiment of the present application; Figure 4 A flowchart for determining first experimental data provided in an embodiment of the present application; Figure 5 A flowchart for determining second experimental data provided in an embodiment of the present application; Figure 6 A schematic structural diagram of a ship-based anchoring design device provided in an embodiment of the present application; Figure 7 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, each other embodiment obtained by those skilled in the art without making creative work falls within the scope of protection of the present application.

[0019] First, the application scenarios to which this application is applicable are introduced. This application can be applied in the field of ship technology.

[0020] Research has found that with the increase in ship types, problems related to anchoring have emerged one after another. Such problems have been plaguing the design department, manufacturing department and precision management department, consuming a lot of manpower and material resources and relying on experience and experience, and lack of standardization.

[0021] The inspection method in the existing technology is to first carry out a detailed design of the anchor system, and then verify the rationality of the anchor system layout through wooden model tests and discover problems that may occur in the actual anchor pulling test in advance. This method has a great waste of manpower, material resources and time.

[0022] Based on this, the present invention provides a ship-based anchor design method and anchor design device. By integrating 3D simulation technology with 3D printing technology, this method optimizes the entire anchor design process: first, a 3D model of the anchor assembly is imported and virtually assembled to generate a simulation design model. A model of the main hull structure is simultaneously constructed, followed by spatial positioning and constrained assembly to form a 3D experimental model. Subsequently, first experimental data is obtained through fluid mechanics and structural mechanics simulations. Once verified, the simulation model is directly exported for 3D printing to obtain a physical model. Finally, second experimental data is obtained through actual anchor pulling experiments, and production drawings are output after dual verification. This method overcomes the lag and high cost of traditional wooden model testing, shortening the design verification cycle, reducing the cost of physical model production, and improving the efficiency of anchor design.

[0023] See also Figure 1 , Figure 1 This is a flow chart of the ship-based anchoring design method provided in the embodiment of the present application. Figure 1 As shown in , the ship-based anchoring design method provided by the embodiment of the present application includes: S101. Importing and assembling the three-dimensional models of various components of the ship anchor system to obtain an anchor system simulation design model.

[0024] Specifically, based on the initial design drawings, use Computer-Aided Design (CAD) software (such as SolidWorks, Siemens NX) or dedicated ship design software (such as NAPA, Tribon) to import the three-dimensional model files of each component of the anchor system.

[0025] The file format adopts the STEP format (full name "Standard for the Exchange of Product Model Data", Chinese meaning: Product Model Data Exchange Standard) or IGES format (full name "Initial Graphics Exchange Specification", Chinese meaning: Initial Graphics Exchange Specification) developed by the International Organization for Standardization (ISO), ensuring lossless transmission of model geometric information.

[0026] Imported components include: Anchor Chain, Anchor Body, Anchor Windlass, Chain Stopper, Fairlead, etc.

[0027] Establish an assembly coordinate system in a multi-physics simulation platform (such as ANSYS Workbench, or Abaqus Unified FEA). Use the "constraint positioning" function to spatially position each component according to the design drawing (for example, align the anchor chain with the windlass's axis of rotation, and align the connection points between the anchor body and the anchor chain). Run the assembly's collision detection algorithm to mark and correct interference areas between components (such as the penetration of the anchor chain and the hull structure, and the offset between the anchor windlass and the deck mounting hole) to ensure the model's manufacturability.

[0028] This step can form a complete anchor system simulation design model, eliminate the dimensional errors caused by manual drawing in traditional design, and reduce the risk of rework in subsequent physical tests.

[0029] The cruise ship anchor system includes basic design, detailed design, outfitting production design and manufacturing stages.

[0030] In an alternative embodiment, during the detailed design phase, a full-process 3D modeling technology is used to establish an anchor system model based on a 3D simulation platform. By establishing parametric models for standard anchor system components (anchor, anchor chain, chain stopper windlass) and non-standard components (anchor chain barrel, anchor platform, anchor lip, anchor pocket), a full-process anchor system simulation design model based on the 3D dynamics simulation platform is formed.

[0031] Specifically, see Figure 2 , Figure 2 This is a flow chart of determining the anchor system simulation design model provided in the embodiment of the present application. Figure 2 As shown in the figure, the anchoring simulation design model is designed in the following way: S201, classifying each component in the three-dimensional model into standard anchor parts and non-standard anchor parts; In this step, standard anchor parts are selected from general components that comply with the International Organization for Standardization (ISO) standards or follow industry specifications (such as the "Regulations for Lifting Appliances of Ships and Offshore Installations" published by the China Classification Society (CCS). They specifically include the following categories: Anchor Chain: Its specifications are divided according to diameter (e.g. φ28 mm, φ32 mm) and material (e.g. AM2, AM3 grade high-strength steel); Anchor Windlass: Classified by rated pulling force (e.g. 50 kN, 100 kN) and rotation speed (e.g. 5 rpm, 10 rpm); Fairlead: Standardized according to hole diameter (e.g. φ100 mm, φ150 mm) and material (e.g. cast steel, stainless steel).

[0032] Non-standard anchor parts are components that need to be customized according to specific ship types, including: Windlass Foundation: must match the thickness of the hull deck and the installation hole position of the windlass; Chain Stopper Bracket: Needs to adapt to the anchor chain pitch and the hull side inclination angle; Anchor Mounting Base: It must match the interface size of a specific anchor model (such as Hall anchor and high-hold anchor).

[0033] In computer-aided design software (CAD, such as SolidWorks), classification identifiers are added to components through the "Custom Properties" tag to facilitate subsequent batch processing.

[0034] In this application, the boundaries between standard parts and non-standard parts are clearly defined to provide a classification basis for subsequent parametric modeling (S202) and customized design (S203), thereby avoiding excessive customized design of standardized components.

[0035] S202, setting the size parameters of the anchor standard parts and generating a standard part model that meets the size parameters; Call the standard parts library in CAD software, or create a parametric model through the "equation-driven" function: Anchor chain: Set the chain link diameter, pitch and material density as variable parameters to generate a chain link model that complies with the ISO 1704 standard; Windlass: Set the gear module, number of teeth and motor power as drive parameters to automatically generate the geometric model of the gearbox and drum; Fairlead: Set the aperture, wall thickness, and material elastic modulus as input parameters to generate a structural strength verification model that complies with DNV GL (DetNorske Veritas Germanischer Lloyd) regulations.

[0036] Parameter Verification: Run the "Design Checker" function of the computer-aided design (CAD) software to verify that all parameters are within the standard range (for example, the anchor chain diameter is φ28 mm, and the tolerance range is ±0.5 mm). If the parameters are out of tolerance, a warning prompt will be triggered and the parameter modification permission will be locked.

[0037] This application generates standard part models that can be quickly resized to avoid repeated modeling, while ensuring that standard parts comply with industry specifications and reducing compliance risks in subsequent simulations.

[0038] S203, defining the geometric outline of the anchor system non-standard parts according to the size of the three-dimensional hull model of the main hull structure, and setting the matching parameters between the anchor system non-standard parts and the standard parts model to obtain the non-standard parts model; The geometric outline includes: Anchor winch base: Extract the thickness (T) and mounting hole coordinates (X, Y, Z) of the hull deck model; Generate the base geometry in CAD using the "Extrude-Cut" command to ensure that the bottom surface of the base fits the deck (gap ≤ 0.1 mm); Chain stopper bracket: Measure the anchor chain pitch and the ship's side inclination angle; generate the bracket profile using the "Sweep Blend" command to align the chain stopper roller with the centerline of the anchor chain pitch (deviation ≤ 0.5mm).

[0039] Coordination parameter setting: Assembly constraint: Anchor windlass base and deck: Set "Fixed Constraint" to limit 6 degrees of freedom; Chain stopper bracket and anchor chain: Set "Contact Constraint" to allow rolling friction but prohibit penetration; Tolerance fit: Anchor body connecting seat and anchor body: adopt basic hole transition fit (H7 / k6) to ensure no looseness after assembly and disassembly.

[0040] By achieving precise matching between non-standard parts models and hull structures and standard parts, assembly interference caused by manual measurement in traditional design (such as vibration caused by excessive gap between the base and the deck) can be avoided.

[0041] S204: Based on the connection relationship between the components, the standard part model and the non-standard part model are virtually assembled to generate an anchor system simulation design model.

[0042] Assemble from bottom to top, first locate non-standard parts (such as windlass base), then install standard parts (such as windlass), and finally add auxiliary parts (such as fairlead); Anchor chain and windlass: Set up a "Revolute Joint" to simulate the reel movement; Anchor body and anchor chain: A "spherical joint" is set up to allow the anchor body to swing freely on the seabed.

[0043] Interference verification: Run the Global Interference Check in a simulation platform (such as ANSYS Workbench) to mark conflicting areas. Perform local optimization on interfering components (such as anchor chain and chain stopper bracket) (such as adjusting the bracket tilt angle by 5°).

[0044] Here, a non-interference, movable anchor system simulation design model is generated. Its geometric accuracy and motion logic are consistent with the physical system and can be directly used for subsequent fluid mechanics simulation (such as anchor chain retraction and deployment resistance calculation) and structural mechanics simulation (such as anchor windlass base stress analysis).

[0045] S102. Construct a three-dimensional hull model of the main structure of the hull according to the anchoring design plan; Based on the ship's general arrangement drawing, key dimensional parameters of the hull's main structure (deck, side, keel) (such as deck thickness and side inclination angle) are extracted. The hull geometry model is generated in the simulation platform using the "Extrude-Revolve-Sweep" command. Assign material properties to the hull model. For example, the elastic modulus of steel is 210 GPa, the Poisson's ratio is 0.3, and the density is 7850 kg / m³. This ensures accurate structural deformation calculations in subsequent simulations. Furthermore, the hull model is meshed primarily using hexahedrons (with element sizes ≤ 50 mm), with a focus on increasing the mesh density in the anchor installation area (e.g., around the windlass base).

[0046] Here, a digital model consistent with the mechanical properties of the actual hull structure is obtained, which provides a basis for the coupled simulation of the anchor system and the hull, and avoids the simulation error caused by the simplification of the hull in the traditional wooden model test.

[0047] S103, assembling and positioning the three-dimensional hull model and the anchor system simulation design model to obtain an assembled three-dimensional experimental model; In this step, the anchor windlass installation point of the anchor system simulation design model is aligned with the preset installation holes on the hull deck, using the centerline of the hull model as a reference (coordinate deviation ≤ 1mm). Fixed constraints are applied to the anchor system model (for example, the bolt connection point between the anchor windlass base and the deck is set to "fixed support") to simulate real-world installation conditions. A "revolution joint" is defined for the connection point between the anchor chain and the anchor windlass, and a "spherical joint joint" is defined for the connection point between the anchor chain and the anchor body to ensure that the anchor system can simulate the retraction and extension movement.

[0048] Here, a three-dimensional experimental model is formed that can dynamically simulate the movement of the anchor system, replacing the physical model that needs to be manually adjusted in traditional wooden mold tests, thereby improving the repeatability of the test.

[0049] Specifically, see Figure 3 , Figure 3 This is a flow chart for determining a three-dimensional experimental model provided in the embodiment of the present application. Figure 3 As shown in , the three-dimensional experimental model is determined by: S301, determining the deck plane of the three-dimensional hull model of the main hull structure as the spatial positioning reference plane; Here, the basis for selecting the reference plane is: the deck plane is the core reference surface for anchor installation, and its flatness directly affects the positioning accuracy of components such as the windlass and chain stopper; the intersection of the hull centerline (Centerline of Hull) and the deck plane is selected as the reference axis (X-axis) to ensure the symmetrical layout of the anchor system model.

[0050] Method for defining the datum plane: In the CAD software, use the "Reference Geometry" → "Datum Plane" command to select three non-collinear points on the deck plane (such as the bow, midship, and stern deck edge points) to generate the datum plane; set the datum plane accuracy: flatness error ≤ 0.05 mm (refer to CCS "Ship Construction Accuracy Standard").

[0051] The datum plane serves as a reference for the global coordinate system. It can eliminate the coordinate system differences between the hull model and the anchor system model caused by independent modeling, and avoid positional offset after assembly (such as misalignment between the anchor windlass mounting hole and the deck hole).

[0052] S302, positioning each component in the anchor system three-dimensional model to a spatial positioning reference plane by aligning the coordinate system; Coordinate system alignment strategy: Anchor windlass positioning: Extract the coordinates of the center point of the bottom surface of the anchor windlass base (X0, Y0, Z0) and align them with the coordinates of the center point of the preset installation hole on the deck reference surface; use the "Move-Rotate" command to make the anchor windlass axis parallel to the hull centerline (angle deviation ≤ 0.5 degrees); Anchor chain positioning: starting from the center of the windlass drum, extend along the deck reference plane to generate the initial section of the anchor chain, ensuring that the chain link pitch direction is consistent with the longitudinal direction of the hull; Anchor positioning: According to the designed coordinates of the anchor point (such as the bow anchor position X=10m, Y=0m, Z=-5m), place the anchor model at the designated position outside the hull.

[0053] Alignment accuracy control: Use the "Assembly Fit" function of the CAD software to set the "Distance Fit" (gap between the bottom surface of the anchor windlass base and the deck reference plane = 0 mm) and "Angle Fit" (angle between the anchor windlass axis and the hull centerline = 0 degrees); run the "Assembly Check" tool to mark misaligned components and automatically correct them.

[0054] S303, applying geometric constraints to the positioned components, the geometric constraints including rotational constraints between the anchor chain and the windlass; In a simulation platform (such as ANSYS Workbench), add constraints through the "Connections" toolbar of the "Mechanical" module: Fixed constraint: Select the contact surface between the bottom surface of the windlass base and the deck reference surface; Rotation pair: select the center point of the chain link at the head end of the anchor chain and the axis of the windlass drum; Ball joint pair: select the center point of the end link of the anchor chain and the ball head of the anchor body connection seat.

[0055] Geometric constraints simulate real physical connections by limiting the relative degrees of freedom of motion between components, ensuring that the anchor chain can only rotate around the axis of the windlass drum, avoiding non-physical phenomena such as anchor chain twisting or detachment in the simulation.

[0056] S304. Generate a fully assembled three-dimensional experimental model based on the spatial positioning reference plane and geometric constraints.

[0057] Static verification: checks that all components are fully constrained (no under-constraint or over-constraint); Dynamic verification: Run the "motion simulation" module to simulate the anchor chain retraction and deployment process (such as retraction at a speed of 5 meters per minute (m / min)). Observe: whether the anchor chain interferes with the chain stopper and fairlead; whether the windlass torque exceeds the rated value; and whether the anchor body entry angle meets the design requirements (such as 30 degrees to 45 degrees).

[0058] Model optimization: local modifications to interference areas (e.g., the gap between the anchor chain and the chain stopper bracket is less than 1 mm) (e.g., adjusting the bracket tilt angle by 2°); This application generates a three-dimensional experimental model that can dynamically simulate the motion of the anchor system. Its geometric accuracy and motion logic are consistent with the physical system, and it supports simulation of multiple working conditions (such as still water anchoring and anchoring under wave loads), providing data support for the optimal design of the anchor system.

[0059] S104, performing a motion performance simulation experiment on the three-dimensional experimental model to obtain first experimental data; Set up a fluid domain (covering an area five times the length of the anchor chain around the anchor retraction and deployment path) and apply boundary conditions (inlet velocity corresponds to 0-3m / s with a wind speed of ≤5, and outlet pressure is standard atmospheric pressure); Calculate the water flow resistance experienced by each section of the anchor chain during deployment and retraction, and extract the maximum tension of the anchor chain during deployment and retraction (unit: kilonewton kN). Based on the tension of the anchor chain, calculate the stress distribution of the anchor winch support structure and extract the maximum stress value (unit: MPa). Monitor the change in contact force between the anchor body and the simulated seabed plane, and calculate the anchor system deployment and retraction time (unit: seconds) and contact stability parameters (contact force fluctuation amplitude ≤10%).

[0060] Obtain anchor system performance data (tension, stress, and retraction and deployment time) under virtual sea conditions, identify design flaws in advance (such as insufficient strength of the anchor winch support structure), and reduce the number of physical tests.

[0061] The first experimental data includes the maximum tension of the anchor chain during retraction and deployment, the maximum stress value of the anchor windlass support structure, the anchor retraction and deployment time, and the contact stability parameters between the anchor and the seabed.

[0062] Specifically, see Figure 4 , Figure 4 This is a flow chart for determining the first experimental data provided in the embodiment of the present application. Figure 4 As shown in , the first experimental data is determined in the following way: S401. Delineate the fluid domain.

[0063] The fluid domain covers the area of ​​the preset anchor chain length around the anchor retraction and deployment path. The fluid domain is used to simulate the dynamic effect of water flow on the anchor chain during the retraction and deployment process. Determination of the size of the fluid domain: With the anchoring path as the center, it extends to 5 times the length of the anchor chain in all directions (for example, if the anchor chain is 30 meters long, the fluid domain is a rectangular parallelepiped of 150 meters × 150 meters × 50 meters); the height of the fluid domain covers the depth of the anchor body in the water (for example, if the anchor body touches the bottom at a depth of 20 meters, the fluid domain height is ≥ 25 meters).

[0064] Meshing strategy: Anchor chain area: Use hexahedral mesh with a mesh size of ≤0.1 m (to ensure that the anchor chain pitch (0.1 m) is fully captured); Far field: Tetrahedral mesh is used, with mesh size gradually varying from 0.1m to 5m (balancing calculation accuracy and efficiency); Boundary layer mesh: Generate 5 layers of prismatic mesh on the surface of the anchor chain, with the first layer height ≤ 0.001 m (to meet the turbulence model requirement of y+≈1).

[0065] The fluid domain must encompass the flow disturbance caused by anchor motion to prevent boundary reflections from affecting calculation accuracy. According to CFD theory, the distance at which the disturbance decays to 5% of its initial value is approximately five times the characteristic length (anchor chain length L), meaning the fluid domain radius R ≥ 5L.

[0066] S402, setting the fluid domain inlet flow velocity to the wind speed and the outlet pressure, so as to reproduce the water flow environment under different sea conditions; Inlet velocity mapping: Convert wind speed (0-3m / s) to water velocity according to wind scale standards: Level 0 wind (calm wind): water flow speed = 0m / s meters per second; Level 3 wind (light breeze): water velocity = 1.5-3.0 m / s (take the middle value 2.25 m / s); Outlet pressure setting: Set the outlet to "pressure outlet", the pressure value = standard atmospheric pressure (101325Pa); turn on the "static pressure recovery" option to avoid outlet backflow affecting calculation stability.

[0067] This application replicates the open ocean flow environment through a combination of velocity inlets and pressure outlets. The logarithmic profile accurately simulates how near-surface current velocity changes with altitude, consistent with actual sea conditions.

[0068] S403, defining the retraction and extension actions for the anchor model, and fixing the position of the main hull structure; Definition of retraction and extension action: Anchoring stage: The anchor chain is released from the windlass drum at a speed of 5 meters per minute (m / min) for 6 minutes (releasing 30 meters of anchor chain); the anchor body is lowered along with the anchor chain until it touches the bottom (bottoming depth is 20m); Anchoring stage: The windlass reels in the anchor chain at rated power (e.g. 50 kW), with the speed automatically adjusted according to the load (maximum speed 8 m / min); the anchor is lifted to the deck level (height + 5 m).

[0069] Hull fixed constraint: In multibody dynamics software (such as RecurDyn), set the hull model to "fixed support" and restrict 6 degrees of freedom (3 translations + 3 rotations); The anchor model is connected to the hull through a “rotational joint” (anchor drum) and a “fixed constraint” (chain stopper).

[0070] S404, calculating the water flow resistance of each section of the anchor chain during the retraction and extension process, and obtaining the maximum tension of the anchor chain during the retraction and extension process extracted from the simulation data of the anchor chain stress sensor; Calculation of water flow resistance: The hydrodynamic force of the anchor chain segment is calculated using the Morison equation:

[0071] Where F is the force being sought, usually in Newtons (N), ρ is the density of the fluid, which is the ratio of the mass of the fluid to its volume, in kilograms per cubic meter, and C is the mass of the fluid. d The drag coefficient is a dimensionless coefficient used to characterize the magnitude of the resistance encountered by an object when it moves in a fluid. A represents the characteristic area of ​​the object, usually the projected area of ​​the object perpendicular to the direction of fluid flow, and the unit is square meters. C u represents the speed of the object relative to the fluid in meters per second (m / s), V is the volume of the object in cubic meters, and d is the volume of the object in cubic meters. u / d t It is the derivative of velocity u with respect to time t, that is, acceleration, which represents the rate of change of velocity with time, and its unit is meter per second squared.

[0072] Maximum tension extraction: A "force sensor" is set at the connection point between the anchor chain and the windlass to monitor tension changes in real time; the peak tension value (e.g. 120kN) at the end of the anchoring phase (the moment the anchor body touches the bottom) is extracted as the maximum tension.

[0073] S405. Calculate the stress distribution of the anchor windlass support structure based on the anchor chain tension, and extract the maximum stress value of the anchor windlass support structure; Structural stress calculation: The anchor chain tension is applied as a load to the anchor windlass support structure (such as the base and side plates). The stress distribution is calculated using the finite element method (FEM), with the material properties set to Q345 steel (elastic modulus of 210 GPa and Poisson's ratio of 0.3). Maximum stress extraction: Identify stress concentration areas (such as the fillet of the foundation); extract the maximum stress value during the anchoring phase (for example, 185 MPa), compare it with the material yield strength (345 MPa), and assess safety (safety factor = 345 / 185 ≈ 1.86).

[0074] S406. Obtain the contact force change between the anchor body and the seabed simulation plane monitored by the contact force sensor, and calculate the anchor retraction and release time and the contact stability parameters between the anchor and the seabed. The anchor retraction and release time is the time from the complete release of the anchor chain to the bottoming of the anchor body.

[0075] Calculation of anchoring time: Anchoring time: from the beginning of anchor chain release (t=0 seconds) to the anchor body touching the bottom (t=360 seconds); Anchor raising time: from the start of the windlass (t=360 seconds) to the lifting of the anchor to the deck (t=405 seconds), the total raising and lowering time = 405 seconds.

[0076] Contact stability assessment: A "contact force sensor" is set at the contact point between the anchor body and the seabed to monitor the contact force fluctuation within 10 seconds after touching the bottom; In an optional embodiment, the anchor system operation performance verification is carried out based on the three-dimensional model, the detailed design of the anchor system is verified by the three-dimensional dynamic simulation model, and the rationality of the anchor system layout design, structural design, production design and system configuration parameters are evaluated based on the anchor lifting and dropping motion performance simulation analysis method, and the evaluation results are obtained. If the evaluation results are unreasonable, they are fed back to the design scheme for optimization design, and the initial anchor system production drawings are iteratively changed. If the evaluation results are reasonable, 3D printing is performed.

[0077] S105. When the first experimental data meets the ship design requirements, derive the anchor system simulation design model and perform 3D printing to obtain a solid model corresponding to the anchor system simulation design model; Export the anchor system model in the simulation platform to STL format to ensure that the model has no broken surfaces and the normals are consistent; 3D printing parameter settings: Material selection: Select materials based on the stress conditions of the components (e.g., nylon + carbon fiber reinforced anchor windlass base and metal anchor chain); Layer thickness: 0.1 mm (for high precision) or 0.2 mm (for rapid prototyping); Filling rate: 80% (load-bearing components) or 20% (non-load-bearing components); Post-processing: Remove support, polish, and paint the printed parts to ensure the surface roughness is ≤3.2μm.

[0078] This application can quickly obtain a physical model that is consistent with the simulation model, with a cost of only 30% of the traditional wooden model, and can be directly used for subsequent anchor tests.

[0079] S106, performing an actual anchoring experiment on the physical model to obtain second experimental data; Simulate sea conditions with wind speed ≤ level 5 and wave height ≤ 1m in the experimental pool; Apply the designed tension (anchor weight × safety factor 1.5) to the anchor chain through the traction device; Use a displacement sensor to measure the tensile deformation of the anchor chain (unit: mm); Use a depth gauge to measure the anchor's grip depth (in meters); Use acoustic sensors to capture abnormal sounds during the anchor pulling process (sudden noise with a frequency ≥ 20 Hz).

[0080] Here, the application can verify the accuracy of simulation data and discover actual factors not considered in the simulation (such as material creep and loosening of connectors), providing a basis for design optimization.

[0081] Specifically, see Figure 5 , Figure 5 This is a flow chart for determining the second experimental data provided in the embodiment of the present application. Figure 5 As shown in , the second experimental data is obtained by: S501. Fix the 3D printed solid model to the deck simulation area of ​​the test platform, ensuring that the anchor windlass mounting hole coincides with the platform reference surface. 3D printing model preparation: Material selection: The anchor body is made of nylon 12, and the anchor chain segments are made of photosensitive resin to meet the requirements of lightweight and strength; Precision control: Printing layer thickness ≤ 0.1 mm, key dimensions (such as anchor chain pitch, anchor claw angle) error ≤ 0.05 mm, ensuring geometric consistency with the simulation model.

[0082] Model fixing and alignment: Deck simulation area: Lay a 10 mm thick steel plate on the test platform (such as a steel structure frame) to simulate the stiffness of the hull deck; Mounting hole alignment: Use a laser locator to align the anchor winch mounting hole with the platform reference plane (deviation ≤ 0.1 mm) to avoid additional bending moment caused by alignment error during the test; Fixing method: Use M12 bolts to connect the anchor base to the deck to prevent loosening during the test.

[0083] S502: Deploy an electric winch as a traction device at the rear of the test platform, connect the winch traction rope to the end of the anchor chain, and monitor the applied tension value in real time through a tension sensor; Towing device deployment: Electric winch selection: rated pulling force 50 kN, speed range 0-1 m / min (scaled proportionally to the anchor dropping speed of 5 m / min in the simulation); Winch location: Installed at the tail of the test platform (10 meters away from the anchor body), connect the traction rope to the end of the anchor chain through the pulley block to ensure that the pulling direction coincides with the axis of the anchor chain (deviation ≤ 2°).

[0084] Tension monitoring system: Tension sensor: Use S-type tension and compression sensor (range 0-60 kN, accuracy ±0.1% FS, plus or minus 0.1% full scale), installed between the winch traction rope and the anchor chain; Data acquisition: The tensile force values ​​were recorded in real time using a National Instruments (NI) data acquisition card (model USB-6341) with a sampling frequency of 100 Hz (covering the tensile force fluctuation period).

[0085] S503. Calculate the design tension based on the anchor weight parameter in the anchor system design plan, and apply the tension at a constant speed using a winch to perform an anchor pulling test. Anchor pulling test execution: The winch applies tension at a constant speed of 0.5 m / min until the tension reaches the design value (11.8 kN) or the anchor body is completely pulled out; the tension stabilization stage lasts for 10 seconds (to ensure sufficient data collection).

[0086] S504: During the anchoring process, obtain the tensile deformation, grip depth, and abnormal sound to generate second experimental data; The tensile deformation is measured by the displacement sensor on the anchor chain, the grip depth is measured by the depth meter on the anchor, and the abnormal sound is captured by the acoustic sensor on the sound during the anchor pulling process.

[0087] Tensile deformation measurement: Displacement sensor: A laser displacement sensor (range 0-50 mm, accuracy ±0.01 mm) is installed on the anchor chain to measure the elongation between the anchor chain nodes; Ground grip depth monitoring: Depth meter: An ultrasonic depth meter (range 0-2 meters, accuracy ±1 mm) is installed at the bottom of the anchor body to monitor the embedding depth of the anchor body in the simulated seabed (sandy soil layer) in real time; Abnormal sound capture: Acoustic sensor: 4 microphones (sensitivity -44dB ± 2dB, frequency range 20Hz-20kHz) are arranged around the anchor body to collect sound signals during the anchor pulling process; Abnormality identification: The spectrum is analyzed through fast Fourier transform. If a peak appears in the frequency range of 1 kHz to 5 kHz (typical structural resonance frequency), it is determined to be an abnormal sound.

[0088] The tensile deformation reflects the elastic deformation capacity of the anchor chain and is directly related to the elastic modulus of the material. The grip depth is the core indicator of the anchoring performance of the anchor system and is affected by the shape of the anchor body (such as Hall anchor, naval anchor) and the properties of the soil (sandy, clay). Abnormal noise may be caused by friction between anchor chain segments, delamination of the interface between the anchor body and the soil, or structural cracks, and requires a comprehensive analysis combined with deformation data.

[0089] In an optional embodiment, during the production design phase, first, the three-dimensional model of the detailed design phase is anchored and processed, and the STL format model is exported for 3D printing.

[0090] 3D printing is a bit faster than manual work. Once the modeling is done, there is no problem. You can directly output a file and perform 3D printing based on the file.

[0091] For the 3D printing of large-scale anchor models, a support structure is designed, and a block-based combination and modular structural design method is adopted to construct a 3D printed cruise ship anchor model.

[0092] Then, based on the 3D printed model, the cruise ship anchoring function was evaluated and verified, and a test plan was formed for the 3D printing of anchoring components (anchor, anchor chain, chain stopper, anchor chain barrel, anchor platform, anchor lip, anchor hole and part of the hull outer plate).

[0093] Compare and analyze the quality of 3D-printed models made of different materials (metal, PLA, nylon, photosensitive resin, chopped carbon fiber, etc.), comparing strength, stiffness, and printing efficiency to optimize support structure, modular, and modular design. Utilize 3D additive manufacturing to create models of anchor systems made of various materials, and conduct anchor testing on the 3D-printed models. Analyze the experimental data and provide feedback to modify the design drawings. Through multiple iterations, complete interactive design verification and iterative optimization of the entire anchor system process.

[0094] The anchor test is conducted on 3D printed physical parts to compare the experimental results with the standard threshold to determine whether they are within the standard threshold. If so, it means that the 3D model printed from the initial design drawing can be mass-produced. If not, return to the original initial design drawing for modification.

[0095] S107. When the second experimental data meets the requirements of the ship anchor pulling parameters, the simulation experiment is ended, the anchor system design scheme is determined, and the anchor system production drawings corresponding to the anchor system design scheme are output.

[0096] Comparing the second experimental data (e.g., actual maximum tension, grip depth) with the simulation data ( S104 ) and the design requirements (e.g., maximum tension ≤ 500 kN, kilonewtons); If the error is within ±5%, the anchor system design is determined; otherwise, the process returns to S101 to adjust the model parameters (e.g., increase the thickness of the anchor windlass support structure); Generate anchor system production drawings (including parts drawings, assembly drawings, and welding drawings) in CAD software, and mark tolerance grades (such as IT8-IT10) and surface treatment requirements (such as heat treatment and galvanizing).

[0097] Generate standardized drawings that can be directly used in production, avoid dimensional ambiguity caused by manual drawing in traditional design, and shorten the production preparation cycle.

[0098] Through the above steps, this application realizes the digitalization of the entire process from virtual design to physical verification, shortens the anchor system design cycle, reduces costs, and significantly improves the design reliability through the closed-loop iteration of simulation-printing-experimentation.

[0099] Optionally, the present application also includes: for key components of the anchor system, using different materials, and preparing a solid model of the same component through the same 3D printing process; performing quality inspection on the prepared solid model to obtain inspection results, and the inspection results include dimensional accuracy, surface roughness, mechanical properties, printing time and material cost parameters; according to the inspection results, analyzing the characteristics of each material in terms of mechanical properties, printing efficiency, and cost, and determining the preset anchor system component type; based on the preset anchor system component type, adjusting the support structure density, designing the connection interface of the block combination structure of each component, selecting a common material as the connecting part between the component modules, and assembling them to obtain an assembled cruise ship anchor system model.

[0100] Specifically, the assembled cruise ship anchor model is obtained by the following method: (1) Obtaining accurate model data and model pre-processing: Using 3D modeling software, build a high-precision three-dimensional digital model based on the actual dimensions of the cruise ship anchor system and technical drawings. Import the model into professional 3D printing slicing software to check for problems such as broken surfaces, non-manifold geometry, and overlapping surfaces. Repair the anchor system model to ensure model integrity and avoid printing failures.

[0101] (2) Determine support requirements and select support types: Analyze the suspended structures, cantilevered parts, and complex curved surfaces of the cruise ship anchor system model. For example, the curved part of the anchor claw, the connection structure between the anchor chain and the anchor body, and other parts require additional support due to the presence of suspended or large tilt angle structures. Use the support analysis function of the slicing software to mark the areas that require support. For the suspended structures of the anchor lip and anchor platform, tree-shaped supports are used. Their contact area is small, easy to dismantle, and has little impact on the model surface. For the suspended part of the anchor chain barrel, grid-shaped supports are used to provide stronger support. Adjust the density (density between 15%-30%), angle, and contact point of the support structure for the anchor lip. The support angle is adjusted according to the angle of the suspended structure to ensure good contact between the support and the surface of the anchor lip model, while avoiding excessive support that affects printing efficiency and model accuracy.

[0102] (3) Add auxiliary support points and design support structures: Add support points at the connection between the anchor crown and the anchor rod to prevent deformation during printing. Add auxiliary support points at key stress-bearing locations and complex structures such as the connection between the anchor lip and the anchor base, and at the back surface to enhance support stability.

[0103] (4) Modular structure design module definition: Parts of the cruise ship anchor system model with similar functions or structures are divided into modules. For example, the anchor chain system is divided into one module, the anchor body and anchor rod are divided into one module, and the anchor claw is divided into one module. Each module has independent functions and structures and can be printed and replaced separately.

[0104] (5) Modular structure interface design: Design unified interface standards for each module to ensure that modules can be connected quickly and accurately. The interface can be plug-in, snap-on, or threaded to ensure connection strength and stability. A certain tolerance is reserved at the interface to facilitate module assembly and adjustment.

[0105] (6) Determine the block size: Divide each module into several small blocks according to the printable size range. Use the segmentation tool of the 3D modeling software to segment the model according to the segmentation principle. Mark the number and docking direction at the segmentation point, generate a detailed segmentation drawing, and indicate the size, position and assembly order of each block. Divide the model into blocks of appropriate size according to the printing size range of the 3D printer. Avoid single-block model size that is too large and exceeds the printing range of the printer. At the same time, consider that the number of blocks should not be too large to avoid increasing the difficulty of assembly. When segmenting, try to ensure that each block contains a complete structural unit, and divide the main components such as the anchor body, anchor rod, anchor claw, etc. into independent blocks to facilitate later assembly and ensure structural strength.

[0106] (7) Block interface design for easy assembly: When designing the block interface, use methods such as concave-convex grooves, mortise and tenon structures or bolt connections to ensure that the blocks can be accurately docked and firmly connected.

[0107] (8) Printing parameter settings: Set appropriate printing parameters based on the selected 3D printing material (such as polylactic acid (PLA), acrylonitrile butadiene styrene copolymer (ABS), nylon, etc.) and printer performance. These parameters include printing temperature, printing speed, layer thickness, infill rate, etc. Generally, the printing temperature for PLA material is 190-220 degrees Celsius, the printing speed is 40-60 mm / s, the layer thickness is 0.1-0.2 mm, and the infill rate is 20%-40%.

[0108] (9) Printing sequence arrangement: Print each block and module in sequence according to the block drawings and assembly sequence. Prioritize printing of key structures and parts with more support structures to ensure a stable printing process. During the printing process, regularly check the print quality and adjust the printing parameters in a timely manner.

[0109] (10) Processing and assembly: After printing is completed, remove the support structure and use sandpaper, files and other tools to polish the surface of the model to remove support marks and printing defects. For parts that need to improve the surface finish, polishing, painting and other processes can be used for processing. According to the block drawings and modular interface design, assemble the blocks and modules in sequence. Use glue, bolts or other connection methods to fix the components to ensure that the assembled cruise ship anchor model is firm and accurate in size. Check the overall appearance and function of the model and make necessary adjustments and repairs.

[0110] The ship-based anchor system design method and anchor system design device provided in the embodiments of the present application include: importing three-dimensional models of various components of the ship anchor system and assembling them to obtain an anchor system simulation design model; constructing a three-dimensional hull model of the main structure of the ship according to the anchor system design plan; assembling and positioning the three-dimensional hull model and the anchor system simulation design model to obtain an assembled three-dimensional experimental model; conducting a motion performance simulation experiment on the three-dimensional experimental model to obtain first experimental data; when the first experimental data meets the ship design requirements, exporting the anchor system simulation design model and performing 3D printing to obtain a physical model corresponding to the anchor system simulation design model; conducting an actual anchor pulling experiment on the physical model to obtain second experimental data; when the second experimental data meets the ship anchor pulling parameter requirements, ending the simulation experiment, determining the anchor system design plan, and outputting the anchor system production drawings corresponding to the anchor system design plan. By combining three-dimensional simulation and 3D printing, the anchor system design verification cycle is shortened and the cost of physical model production is reduced.

[0111] Through digital modeling and simulation, this application can quickly transform a two-dimensional design into a three-dimensional digital model and conduct digital verification, thus avoiding problems in advance, shortening the design cycle, and ensuring the success rate of wood formwork tests. Furthermore, through interactive design using three-dimensional simulation, new anchor lip lines can be quickly and independently designed. Problems can be identified in the early stages of wood formwork tests, and mature design solutions can be generated through continuous iteration during the simulation phase. This optimizes the anchor system layout and significantly reduces the number and cost of wood formwork tests.

[0112] This application is based on the evaluation and verification of the cruise ship anchoring function of 3D printed models. Anchor pulling tests are carried out on 3D printed anchoring components (anchor, anchor chain, chain stopper, anchor chain barrel, anchor platform, anchor lip, anchor hole, and part of the hull outer plate). This makes the final generated anchoring production drawings more accurate and less error-prone.

[0113] Based on the same inventive concept, the embodiments of the present application also provide a ship-based anchoring design device corresponding to the ship-based anchoring design method. Since the principle of solving the problem by the device in the embodiments of the present application is similar to the above-mentioned ship-based anchoring design method in the embodiments of the present application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0114] See also Figure 6 , Figure 6 This is a schematic diagram of the structure of the anchoring design device based on the ship provided in the embodiment of the present application. Figure 6 As shown in FIG, the ship-based anchoring design device 600 includes: Anchor system simulation design model acquisition module 601 is used to import the three-dimensional models of various components of the ship anchor system and assemble them to obtain the anchor system simulation design model; A three-dimensional hull model building module 602 is used to build a three-dimensional hull model of the main structure of the hull according to the anchoring design scheme; A three-dimensional experimental model obtaining module 603 is used to assemble and position the three-dimensional hull model and the anchor system simulation design model to obtain an assembled three-dimensional experimental model; A first experimental data obtaining module 604 is configured to perform a motion performance simulation experiment on the three-dimensional experimental model to obtain first experimental data; A physical model obtaining module 605 is configured to, when the first experimental data meets the ship design requirements, derive the anchor system simulation design model and perform 3D printing to obtain a physical model corresponding to the anchor system simulation design model; A second experimental data obtaining module 606 is configured to perform an actual anchoring experiment on the physical model to obtain second experimental data; The anchor system production drawing output module 607 is used to end the simulation experiment, determine the anchor system design scheme, and output the anchor system production drawing corresponding to the anchor system design scheme when the second experimental data meets the ship anchor pulling parameter requirements.

[0115] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of the electronic device provided in the embodiment of the present application. Figure 7 As shown in FIG, the electronic device 300 includes a processor 310 , a memory 320 and a bus 330 .

[0116] The memory 320 stores machine-readable instructions executable by the processor 310. When the electronic device 300 is running, the processor 310 communicates with the memory 320 via the bus 330. When the machine-readable instructions are executed by the processor 310, the above-mentioned Figure 1 The specific implementation of the steps of the ship-based anchoring design method in the method embodiment shown can be found in the method embodiment and will not be repeated here.

[0117] The embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the computer program can execute the above-mentioned Figure 1 The specific implementation of the steps of the ship-based anchoring design method in the method embodiment shown can be found in the method embodiment and will not be repeated here.

[0118] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0119] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. There may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some communication interface, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

[0120] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0121] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0122] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0123] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above-mentioned embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-mentioned embodiments within the technical scope disclosed in the present application, or perform equivalent replacements for some of the technical features thereof. These modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A ship-based anchoring design method, characterized in that: include: Import the 3D models of the various components of the ship's anchor system and assemble them to obtain a simulation design model of the anchor system; According to the anchoring design plan, build a three-dimensional hull model of the main structure of the hull; Assembling and positioning the three-dimensional hull model and the anchor system simulation design model to obtain an assembled three-dimensional experimental model; Performing a motion performance simulation experiment on the three-dimensional experimental model to obtain first experimental data; When the first experimental data meets the ship design requirements, the anchor system simulation design model is exported and 3D printed to obtain a solid model corresponding to the anchor system simulation design model; Performing an actual anchor pulling experiment on the physical model to obtain second experimental data; When the second experimental data meets the requirements of the ship anchor pulling parameters, the simulation experiment is ended, the anchor system design scheme is determined, and the anchor system production drawings corresponding to the anchor system design scheme are output.

2. The method according to claim 1, characterized in that Anchor the simulation design model by: Classifying each component in the three-dimensional model into standard anchor parts and non-standard anchor parts; Setting the size parameters of the anchor standard parts and generating a standard part model that meets the size parameters; Defining the geometric outline of the anchor system non-standard component according to the size of the three-dimensional hull model of the main hull structure, and setting the matching parameters of the anchor system non-standard component and the standard component model to obtain the non-standard component model; Based on the connection relationship between the components, the standard part model and the non-standard part model are virtually assembled to generate an anchor system simulation design model.

3. The method according to claim 1, characterized in that The three-dimensional experimental model was determined by: Determine the deck plane of the three-dimensional hull model of the main structure of the hull as the spatial positioning reference plane; Positioning each component in the anchor system three-dimensional model to the spatial positioning reference plane by aligning the coordinate system; Applying geometric constraints to the positioned components, the geometric constraints including rotational constraints between the anchor chain and the windlass; Based on the spatial positioning reference plane and geometric constraints, a fully assembled three-dimensional experimental model is generated.

4. The method according to claim 1, wherein The first experimental data is determined by: Defining a fluid domain range, where the fluid domain range is an area covering a preset anchor chain length around the anchor retraction and deployment path, and the fluid domain range is used to simulate the dynamic effect of water flow on the anchor chain during the anchor retraction and deployment process; Setting the fluid domain inlet flow velocity to the wind speed and outlet pressure to reproduce the water flow environment under different sea conditions; Define the retraction and extension actions for the anchor model while fixing the position of the main hull structure; Calculate the water flow resistance of each section of the anchor chain during the retraction and release process, and obtain the maximum tension of the anchor chain during retraction and release extracted from the simulation data of the anchor chain stress sensor; Based on the tension of the anchor chain, the stress distribution of the anchor windlass support structure is calculated, and the maximum stress value of the anchor windlass support structure is extracted; The contact force change between the anchor body and the simulated seabed plane monitored by the contact force sensor is obtained, and the anchor retraction and release time and the contact stability parameters between the anchor and the seabed are calculated. The anchor retraction and release time is the time from the complete release of the anchor chain to the bottoming of the anchor body.

5. The method according to claim 4, characterized in that The first experimental data includes the maximum tension of the anchor chain during retraction and extension, the maximum stress value of the anchor windlass support structure, the anchor retraction and extension time, and the contact stability parameters between the anchor and the seabed.

6. The method according to claim 1, characterized in that The second experimental data is obtained by: Fix the 3D printed solid model to the deck simulation area of ​​the test platform, ensuring that the anchor windlass mounting holes coincide with the platform reference surface; An electric winch is deployed at the tail of the test platform as a traction device. The winch traction rope is connected to the end of the anchor chain, and the applied tension value is monitored in real time through a tension sensor. According to the anchor weight parameters in the anchor system design, the design tension is calculated and applied at a constant speed by a winch to conduct an anchor pulling test; During the anchor pulling process, the tensile deformation, grip depth and abnormal sound are obtained to generate second experimental data; the tensile deformation is measured by the displacement sensor on the anchor chain, the grip depth is measured by the depth meter on the anchor, and the abnormal sound is captured by the acoustic sensor on the sound during the anchor pulling process.

7. The method according to claim 1, characterized in that The method further comprises: For the key components of the anchor system, different materials are used to prepare solid models of the same component through the same 3D printing process; Performing quality inspection on the prepared solid model to obtain inspection results, wherein the inspection results include parameters such as dimensional accuracy, surface roughness, mechanical properties, printing time, and material cost; Based on the test results, analyzing the characteristics of each material in terms of mechanical properties, printing efficiency, and cost, and determining the preset anchor component type; Based on the preset anchor component type, the density of the supporting structure is adjusted, the connection interface of the block-type modular structure of each component is designed, and a common material is selected as the connecting parts between the component modules for assembly to obtain an assembled cruise ship anchor model.

8. A ship-based anchoring design device, characterized in that: include: Anchor system simulation design model acquisition module, used to import the three-dimensional models of various components of the ship anchor system and assemble them to obtain the anchor system simulation design model; A three-dimensional hull model building module is used to build a three-dimensional hull model of the main structure of the hull according to the anchor design plan; a three-dimensional experimental model obtaining module, configured to assemble and position the three-dimensional hull model and the anchor system simulation design model to obtain an assembled three-dimensional experimental model; A first experimental data obtaining module is used to perform a motion performance simulation experiment on the three-dimensional experimental model to obtain first experimental data; a physical model obtaining module, configured to, when the first experimental data meets the ship design requirements, derive the anchor system simulation design model and perform 3D printing to obtain a physical model corresponding to the anchor system simulation design model; A second experimental data obtaining module is used to perform an actual anchor pulling experiment on the physical model to obtain second experimental data; The anchor system production drawing output module is used to end the simulation experiment, determine the anchor system design scheme, and output the anchor system production drawing corresponding to the anchor system design scheme when the second experimental data meets the ship anchor pulling parameter requirements.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate via the bus, and the processor executes the machine-readable instructions to perform the steps of any one of the methods described in claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are executed.

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