Construction simulation method, device and equipment of software row finite element model and storage medium
By acquiring engineering drawings and measured data, a software-based finite element model of the structure was established, which solved the error problem caused by model simplification in existing technologies, achieved higher-precision simulation, and improved construction safety and engineering stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, soft-layout models are simplified to homogeneous and smooth ideal models, which leads to simulation results that do not match the actual soft-layout morphology in engineering practice, resulting in significant errors.
By acquiring engineering drawing data and measured engineering data, the equation of the catenary, material parameters, hydrodynamic parameters and mechanical parameters are determined. The catenary curve is cut to generate the arrangement surface, and reinforcement strips and concrete ballast blocks are drawn on the arrangement surface. The connection method is set and the mesh is divided to establish a realistic soft finite element model for mechanical simulation.
It improves the accuracy of soft drainage model simulation, enabling more realistic simulation of its mechanical behavior under complex water flow, reducing construction risks, minimizing trial and error costs and rework losses, and promoting the digitalization and refinement of coastal engineering.
Smart Images
Figure CN121902500A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of coastal engineering, and in particular to a method, apparatus, equipment and storage medium for constructing and simulating a software finite element model of a ditch. Background Technology
[0002] Flexible revetments are commonly used in estuary and coastal engineering projects. They are mainly composed of flexible materials such as geotextiles and ballast materials (e.g., concrete blocks, sandbags), and have advantages such as adaptability to deformation, convenient construction, and low cost. For flexible revetment laying projects in estuaries or coastal areas, due to the combined effects of runoff, waves, and tides, engineering accidents such as tearing, rolling, and sliding are prone to occur during the laying process. Therefore, it is crucial to model and simulate the stress on the flexible revetment in advance.
[0003] Because the area of soft ballast in actual engineering is large and it is composed of various components such as arrangement, reinforcement strips, binding strips, and concrete ballast blocks, the structure is relatively complex. Current models simplify the soft ballast model into a homogeneous and smooth ideal model, and simplify the soft ballast to a uniform material. This does not accurately reflect the shape of the soft ballast in actual engineering practice, resulting in large errors in the established model and simulation results. Summary of the Invention
[0004] This application provides a method, apparatus, device, and storage medium for constructing and simulating a software finite element model, to solve at least one problem existing in related technologies. The technical solution is as follows: In a first aspect, embodiments of this application provide a method for constructing and simulating a software finite element model, including: Obtain engineering drawings and measured engineering data of the soft trolley. Based on the engineering drawings and measured engineering data, determine the catenary equation, material parameters, hydrodynamic parameters, and mechanical parameters of the soft trolley. The model components include the layout surface, reinforcing strips, and arranged concrete ballast blocks. The catenary curve corresponding to the catenary equation is cut to obtain several secant lines. Based on the several secant lines and the engineering drawing data, an arrangement surface is generated. Based on the engineering drawing data, reinforcement strips and concrete ballast blocks are drawn and arranged on the arrangement surface. The connection method of the arrangement surface, the reinforcing strip and the concrete ballast block are set and the mesh is generated to obtain the structure. The material parameters, the hydrodynamic parameters and the mechanical parameters of the structure are set to determine the finite element model of the soft structure. Mechanical simulation was performed on the finite element model of the soft array, and the mechanical simulation results were obtained.
[0005] In one embodiment, determining the catenary equation of the soft board based on the engineering drawing data and the measured engineering data includes: The catenary equation, the total length equation, and the sag equation of the soft board are constructed, and the catenary equation, the total length equation, and the sag equation are all constructed based on the catenary shape parameters. The parameter values of the catenary shape parameters are determined based on the total length of the catenary, the water depth, the total length equation, and the sag equation. Based on the catenary equation and the parameter values of the catenary shape parameters, the catenary equation for the soft ditch at the laying depth is determined. The engineering drawing data includes the total length of the catenary, and the measured engineering data includes the paving depth.
[0006] In one embodiment, the step of cutting the catenary curve corresponding to the catenary equation to obtain several secant lines, and generating the arrangement surface volume based on the several secant lines and the engineering drawing data includes: Using a preset percentage of the total length of the catenary as the dividing unit, the catenary curve corresponding to the catenary equation is cut to obtain several secant lines. Using the width of the arrangement body as the extrusion depth, the arrangement surface is generated by the extrusion tool according to the extrusion depth and several segments of the cleaving lines, and the thickness of the arrangement surface is set as the arrangement thickness, and the attribute is set as the shell unit attribute. The engineering drawing data includes the total length of the catenary, the width of the row, and the thickness of the arrangement.
[0007] In one embodiment, drawing and generating reinforcing strips and arranging concrete ballast blocks on the layout surface according to the engineering drawing data includes: On the arrangement surface, stiffening strip lines are drawn according to the first arrangement interval to generate stiffening strips. The line cross-sectional parameters of the stiffening strip lines are set based on the cross-sectional dimension parameters. On the arrangement surface, concrete ballast planes are arranged according to the second arrangement interval and shape-related parameters. Concrete ballast blocks are generated by extrusion tools based on thickness parameters and the concrete ballast planes. The engineering drawing data includes the first arrangement interval of the reinforcing strips, cross-sectional dimension parameters, and the second arrangement interval of the concrete ballast blocks, shape-related parameters, and thickness parameters.
[0008] In one embodiment, the hydrodynamic parameters include the magnitude and direction components of the hydrodynamic force; the connection method setting and mesh generation process for the arrangement surface, the reinforcing strip, and the concrete ballast block to obtain the structure, and the setting of the material parameters, hydrodynamic parameters, and mechanical parameters for the structure to determine the soft-body finite element model includes: The connection method between the arrangement surface, the reinforcing strip, and the concrete ballast block is set to a bonded contact. Based on the preset grid unit size range and preset resolution, the result after the connection method is set is meshed to obtain the meshed structure. Material parameters are set for the arrangement surfaces, the reinforcing strips, and the concrete ballast blocks in the structure; The type of water flow force is set as pressure, the magnitude of the water flow force is set as the water flow force magnitude, the definition basis is set as components, the direction component of the water flow force is set as the water flow force direction component, and the force targets are set as the arranged surface and the concrete ballast block, so as to complete the setting of the water flow force parameters. Fixed supports are applied to the upper and lower edges of the arrangement surface, a first buoyancy setting is applied to the concrete ballast block, and the same second buoyancy setting is applied to the arrangement surface and the reinforcing strip. Density, Young's modulus and Poisson's ratio are set to generate bulk modulus and shear modulus to complete the setting of mechanical parameters and determine the finite element model of the soft arrangement.
[0009] In one embodiment, the mechanical simulation of the soft-panel finite element model to obtain the mechanical simulation results includes: Determine the simulated force value and theoretical calculated value of the upper edge of the arrangement surface corresponding to the finite element model of the soft arrangement, and determine the error value between the simulated force value and the theoretical calculated value; When the error value is less than or equal to the error threshold, the overall soft-panel finite element model is subjected to stress simulation and the upper edge of the soft-panel finite element model is subjected to stress simulation, and the corresponding stress distribution data is generated respectively to obtain the mechanical simulation results.
[0010] In one embodiment, determining the simulated force value and theoretical calculation value of the upper edge of the arrangement surface corresponding to the soft array finite element model includes: The theoretical calculated value of the upper end tension of the arrangement body at the upper edge of the arrangement surface corresponding to the finite element model of the soft arrangement is determined by a preset formula; Under the conditions of still water and forces including standard Earth gravity and second buoyancy, force response results are added to the solution results to be simulated. The application target of the force response is set as the upper edge of the arranged surface being fixedly supported, and the force on the upper edge of the arranged surface is monitored to obtain the simulated force values.
[0011] Secondly, embodiments of this application provide a simulation apparatus for constructing a soft finite element model, comprising: The acquisition module is used to acquire engineering drawing data and measured engineering data of the soft deck. Based on the engineering drawing data and measured engineering data, the catenary equation, material parameters, hydrodynamic parameters and mechanical parameters of the model components are determined. The model components include the layout surface, the reinforcing strip and the arranged concrete ballast blocks. The generation module is used to cut the catenary curve corresponding to the catenary equation to obtain several secant lines, generate an arrangement surface based on the several secant lines and the engineering drawing data, and draw and generate reinforcing strips and arrange concrete ballast blocks on the arrangement surface based on the engineering drawing data. The module is used to set the connection method and mesh the arrangement surface, the reinforcing strip and the concrete ballast block to obtain the structure, and to set the material parameters, the hydrodynamic parameters and the mechanical parameters of the structure to determine the soft ballast finite element model. The simulation module is used to perform mechanical simulation on the finite element model of the software and obtain the mechanical simulation results.
[0012] Thirdly, embodiments of this application provide an electronic device, including: a processor and a memory, wherein the memory stores instructions that are loaded and executed by the processor to implement the methods in any of the above-described embodiments.
[0013] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed, implements the methods in any of the above-described embodiments.
[0014] The beneficial effects of the above technical solution include at least the following: By acquiring engineering drawings and measured engineering data of the soft-body structure, the catenary equation, material parameters, hydrodynamic parameters, and mechanical parameters of the model components are determined based on these data. The catenary curve corresponding to the equation is cut to obtain several secant lines. Based on these secant lines and the engineering drawings, a layout surface is generated, accurately converting the catenary equation into a simplified secant model. This, combined with the actual engineering drawings, generates a layout surface that better reflects reality. Reinforcing strips and concrete ballast blocks are drawn and arranged on the layout surface based on the engineering drawings. The connection methods and mesh generation are then configured for the layout surface, reinforcing strips, and concrete ballast blocks. Material, hydrodynamic, and mechanical parameters are set for the resulting structure to determine a finite element model of the soft-body structure that closely matches reality. Mechanical simulation is then performed on the finite element model of the soft-body structure to obtain simulation results, improving simulation accuracy.
[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, these aspects, embodiments, and features will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0016] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.
[0017] Figure 1 This is a schematic flowchart illustrating the steps of a simulation method for constructing a software finite element model according to an embodiment of this application. Figure 2 This is a schematic diagram illustrating the arrangement principle of a software rack according to an embodiment of this application; Figure 3 This is a schematic diagram of the cutting of a catenary curve according to an embodiment of this application; Figure 4 This is a schematic diagram illustrating the setting of hydrodynamic parameters according to an embodiment of this application; Figure 5 This is a structural block diagram of a simulation device for constructing a software finite element model according to an embodiment of this application; Figure 6 This is a structural block diagram of an electronic device according to an embodiment of this application. Detailed Implementation
[0018] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0019] Reference Figure 1 The flowchart illustrates a method for constructing and simulating a software finite element model according to an embodiment of this application. This method may include at least steps S100-S400: S100. Obtain engineering drawing data and measured engineering data of the soft deck. Based on the engineering drawing data and measured engineering data, determine the catenary equation, material parameters, hydrodynamic parameters and mechanical parameters of the model components. The model components include the layout surface, reinforcement strips and concrete ballast blocks.
[0020] S200. Cut the catenary curve corresponding to the catenary equation to obtain several secant lines. Based on the several secant lines and engineering drawing data, generate the layout surface. Based on the engineering drawing data, draw and generate the reinforcement strip and arrange the concrete ballast blocks on the layout surface.
[0021] S300: Set the connection method and mesh the arrangement surface, reinforcement strip and concrete ballast block to obtain the structure. Set the material parameters, hydrodynamic parameters and mechanical parameters of the structure to determine the finite element model of the soft structure.
[0022] S400. Perform mechanical simulation on the soft finite element model and obtain the mechanical simulation results.
[0023] The technical solution of this application embodiment obtains engineering drawing data and measured engineering data of the soft substation. Based on the engineering drawing data and measured engineering data, the catenary equation, material parameters, hydrodynamic parameters, and mechanical parameters of the soft substation are determined. The catenary curve corresponding to the catenary equation is cut to obtain several secant lines. Based on the several secant lines and engineering drawing data, a layout surface is generated. The catenary equation is accurately converted into a simplified secant model, and a layout surface that is more realistic is generated by combining it with the actual engineering drawing data. According to the engineering drawing data, reinforcement strips and concrete ballast blocks are drawn and generated on the layout surface. The connection method of the layout surface, reinforcement strips, and concrete ballast blocks is set and the mesh is generated. The material parameters, hydrodynamic parameters, and mechanical parameters of the obtained structure are set to determine a finite element model of the soft substation that fits the real situation. The finite element model of the soft substation is subjected to mechanical simulation to obtain mechanical simulation results, thereby improving the simulation accuracy.
[0024] In this embodiment, the soft-structure model is established using GeoGebra mathematical tools, ANSYS Workbench, ANSYS DesignModeler, and ANSYS Mechanical modules. The ANSYS Mechanical module is then used for corresponding settings and mechanical simulation analysis. This method allows for relatively accurate and visual finite element simulation of the soft-structure.
[0025] In one implementation, the engineering drawing data of the flexible drainage system, i.e., the data from the design phase, includes, but is not limited to, the length of the flexible drainage system, the total length S of the catenary, the width of the flexible drainage system, the thickness of the flexible drainage system, and basic information such as the shape-related parameters, dimensional parameters (e.g., cross-sectional dimensions, thickness), materials, distribution (e.g., placement location, spacing), and mass of the model components (e.g., for a D-type flexible drainage system, including the placement surface, reinforcing strips, and concrete ballast blocks). The measured engineering data, i.e., the data measured in the actual project, can usually be provided by the project owner, including but not limited to the drainage depth s, the density of the model components (e.g., the placement surface, reinforcing strips, and concrete ballast blocks), and the actual water flow data of the construction area, such as flow velocity, flow direction, average water flow velocity v, the angle between the water flow and the flexible drainage system, and the effective water-blocking area.
[0026] In one implementation, step S100, which determines the catenary equation of the soft board based on engineering drawing data and measured engineering data, includes steps S110-S130: S110. Construct the equations for the catenary, the total length of the catenary, and the sag of the soft board.
[0027] like Figure 2 The diagram illustrates the deployment principle of the flexible raft. The initial state of the raft is shown in line type ①, where it remains vertical in the water. As the rafting vessel moves, it pulls the raft up, resulting in the raft's shape in the water as shown in line type ②. The rafting vessel continues to move, pulling the raft out. At this point, the vessel's speed matches the rafting speed, and the raft's shape in the water remains relatively stable. In line type ②, the raft has a longer overhang and is more susceptible to water flow forces, resulting in a more unfavorable stress situation. Therefore, it is necessary to focus on the stress on the raft in line type ②. Thus, the catenary equation is used to describe the shape of line type ②, and the shape of the raft is determined based on this equation. Optionally, the catenary equation, the total length equation, and the sag equation are all constructed based on the catenary shape parameter 'a'. Specifically, the equations are as follows: Catenary equation:
[0028] Equation for the total length of the catenary:
[0029] Sag equation:
[0030] Wherein, cosh is the hyperbolic cosine function, a (unit m): the shape parameter of the catenary, which is related to the horizontal tension, x is the horizontal coordinate, with the origin located at the lowest point of the catenary; y: the vertical coordinate, with the lowest point y(0)=0; L (unit m) is the span of the catenary (twice the horizontal distance between the upper and lower endpoints of the catenary); S (unit m) is the total length of the catenary, which is twice the length of the soft board; s is the laying depth (unit m), which is the height difference between the lowest point of the catenary and the suspension point, and S is a pre-set model parameter, for example, S is twice the length of the soft board (unit m).
[0031] S120. Determine the parameter values of the catenary shape parameters based on the total length of the catenary, the paving depth, the total length equation, and the sag equation.
[0032] Optionally, since the total length S and the paving depth s of the catenary are known, the parameter values of the catenary shape parameter a and the catenary span L can be determined by combining the total length equation and the sag equation based on these two parameters.
[0033] S130. Based on the catenary equation and the parameter values of the catenary shape parameters, determine the catenary equation for the soft ditch at the laying depth.
[0034] Optionally, by substituting the determined catenary shape parameter a into the catenary equation, the specific catenary equation for the soft paving at the paving depth s can be obtained.
[0035] In one implementation, in step S100, based on the basic information of the model components such as the arrangement of surfaces, reinforcement strips, and arrangement of concrete ballast blocks in the engineering drawing data, the material parameters of each model component can be determined. Based on the measured engineering data, the hydrodynamic parameters (such as the parameters involved in the setting of hydrodynamic parameters such as the magnitude and direction components of hydrodynamic force) and mechanical parameters (i.e. the relevant parameters that can be involved in the mechanical setting) can be determined.
[0036] In this embodiment of the application, the modeling of the soft-panel finite element model is constructed using an engineering software platform such as ANSYS Workbench.
[0037] In one implementation, step S200 involves cutting the catenary curve corresponding to the catenary equation to obtain several secant lines. Based on these secant lines and engineering drawing data, a layout surface is generated, including steps S210-S220: S210. Using a preset percentage of the total length of the catenary as the dividing unit, cut the catenary curve corresponding to the catenary equation to obtain several secant lines.
[0038] Optionally, the model is built using the ANSYS DesignModeler module in ANSYS Workbench. Since DesignModeler struggles to draw curves, to reduce modeling difficulty, GeoGebra's geometric drawing tools are used to cut the catenary curve corresponding to the catenary equation, obtaining several secant segments. This simplifies the catenary curve into a polyline composed of several segments of secant segments, such as... Figure 3 As shown, the subsequent arrangement of surfaces can be simplified into a combination of several planes, and the stiffening strips can be simplified into a combination of several line segments, simplifying the modeling difficulty while ensuring accuracy. The preset percentage of the total length of the catenary, the dividing unit of the cutting line, is determined during the cutting process. The finer the division, the higher the accuracy, but the greater the modeling difficulty. Therefore, considering all factors, the preset percentage can be set to one-tenth to one-fiftieth.
[0039] S220. Using the width of the arrangement body as the extrusion depth, the arrangement surface is generated by the extrusion tool according to the extrusion depth and several secant lines. The thickness of the arrangement surface is set as the arrangement thickness, and the attribute is set as the shell element attribute.
[0040] Optionally, the known width of the arrangement body is set as the extrusion depth. The arrangement body is generated by using the extrusion tool (Extrude) based on the extrusion depth and several secant segments. At the same time, the thickness of the arrangement body is set as the arrangement thickness, and the attribute is set as the shell element attribute to avoid excessive consumption of computing resources by the geometric thickness.
[0041] In one embodiment, step S200 involves drawing and generating reinforcing strips and arranging concrete ballast blocks on the layout surface based on engineering drawing data, including steps S230-S240: S230. On the arrangement surface, draw the reinforcing strip lines according to the first arrangement interval to generate the reinforcing strip.
[0042] Optionally, the cross-sectional parameters of the reinforcing strip are defined through the "Cross-section" attribute. Specifically, the cross-sectional dimensions from the engineering drawing data are input into the "Cross-section" attribute. Then, the reinforcing strip is drawn on the arrangement surface according to the arrangement position and spacing (denoted as the first spacing) in the engineering drawing data, thereby generating the reinforcing strip. It should be noted that in the actual modeling process, if the concrete ballast block is frustum-shaped or other complex shapes, in order to reduce the modeling difficulty and minimize the number of model faces to reduce the amount of software calculation while ensuring accuracy, the concrete ballast block can be simplified into a cylindrical structure with a similar volume, and the material density of the concrete can be fine-tuned based on the volume of the cylinder and the mass of the concrete ballast block.
[0043] S240. On the arrangement surface, draw according to the second arrangement interval and shape-related parameters, arrange the concrete ballast plane, and generate the concrete ballast block by extrusion tool according to the thickness parameters and the concrete ballast plane.
[0044] Optionally, on the arrangement surface, concrete ballast planes are drawn according to the arrangement position, arrangement interval (denoted as the second arrangement interval) and shape-related parameters. Then, the thickness parameter of the concrete ballast block is set as the extrusion depth. The concrete ballast plane is processed according to the thickness parameter by the extrusion tool, thereby generating each corresponding concrete ballast block on the arrangement surface.
[0045] In one implementation, step S300 includes steps S310-S340: S310. Set the connection method of the layout surface body, the reinforcing strip, and the concrete ballast block to bonded contact. Based on the preset grid unit size range and preset resolution, perform grid division processing on the result after the connection method is set to obtain the divided structure.
[0046] Optionally, in actual engineering, the reinforcing strips are sewn onto the layout surface, and the concrete ballast blocks are secured to the reinforcing strips via binding rings. To better replicate the connection relationships between the various components of the soft structure in actual engineering, ANSYS Mechanical sets the connection method between the layout surface, the reinforcing strips, and the concrete ballast blocks to bound contact. Bound contact simulates a completely fixed contact between two geometric bodies, completely restricting any relative movement between them, ensuring no separation and no surface slippage, while also effectively transmitting forces and moments. Therefore, the bound contact setting effectively simulates the firm binding between components in actual engineering, with minimal loosening or displacement. By using this method to connect the components of the soft structure model, the mechanical situation of the mutual binding between concrete blocks, reinforcing strips, and the layout surface in actual engineering can be well simulated. Specifically, the reinforcing strip and the arrangement surface are set to be in a bound contact, with the contact geometry being the line body (reinforcing strip) and the target geometry being the surface geometry (arrangement surface); the concrete ballast block and the arrangement surface are set to be in a bound contact, with the contact geometry being the surface geometry (arrangement surface) and the target geometry being the concrete ballast block.
[0047] Then, based on a preset mesh element size range (e.g., 0.02 to 0.2m; for large soft-panel models, it can be set to 0.5m to 1m) and a preset resolution (e.g., 5), the result after setting the connection method can be meshed to obtain the meshed structure. It should be noted that the "adaptive size adjustment" function can be enabled to improve mesh accuracy. In some embodiments, if the configuration of the electronic equipment used for modeling is limited, the element size setting can be increased and the resolution setting decreased to reduce the hardware load and ensure the stability of the finite element simulation. If the configuration is high, the element size setting can be decreased and the resolution setting increased to obtain more accurate results. Meshing using this method can obtain the highest possible mesh accuracy while ensuring the stability of the simulation process, resulting in a more accurate meshed structure.
[0048] S320. Set material parameters for the arrangement surfaces, reinforcing strips, and concrete ballast blocks in the structure.
[0049] Optionally, based on the materials in the engineering drawing data, you can add the corresponding new materials in the "Engineering Data" column of ANSYS Workbench and select "Isotropic Elasticity" to complete the setting of material parameters for the arrangement surface, reinforcement strips, and concrete ballast blocks.
[0050] S330. Set the type of water flow force to pressure, the magnitude of water flow force to magnitude, the definition basis to components, the direction component of water flow force to direction component, and the force target to the arrangement surface and concrete ballast block, in order to complete the setting of water flow force parameters.
[0051] Optionally, when setting the water flow force, the type of water flow force is set to "pressure", the magnitude of the water flow force is set to the magnitude of the water flow force (calculated using the following specific formula), the definition basis is set to "components", and the directional components of the water flow force are set to the directional components of the water flow force (e.g., components in the x, y, and z directions). Figure 4 As shown, the force targets are set as the arrangement surface and the concrete ballast block (specifically the surface of the arrangement surface and the upper surface of the concrete block) to complete the setting of the water flow force parameters.
[0052] It should be noted that, due to the difficulty in setting up non-uniformly distributed loads in ANSYS Mechanical, the hydrodynamic force is simplified as a uniformly distributed pressure load in the vertical direction for simulation. The hydrodynamic force can be calculated using the Morrison formula for flat plates. When applied in ANSYS Mechanical, it is further decomposed along the coordinate axes based on the working conditions from the measured engineering data. The hydrodynamic force (F) 水流力 The specific calculation formula is as follows:
[0053] Where A (unit: m) 2 ): Effective water-blocking area, which is the water-blocking area multiplied by the angle between the water flow and the flexible revetment; C D The drag coefficient of the water flow is related to the angle between the water flow and the flexible conveyor belt, and is calculated from the angle; ρ (unit: t / m) 3 : density of water; v (unit: m / s): average water velocity at the water-facing surface of the soft drain.
[0054] S340. Apply fixed support to the upper and lower edges of the arrangement surface, set the first buoyancy for the concrete ballast block, set the same second buoyancy for the arrangement surface and the reinforcing strip, and set the density, Young's modulus and Poisson's ratio to generate the bulk modulus and shear modulus to complete the setting of mechanical parameters and determine the finite element model of the soft arrangement.
[0055] Optionally, fixed supports are applied to the upper and lower edges of the arrangement surface. Fixed supports are boundary conditions used to restrict the degrees of freedom of the geometry in all directions. At the location where fixed supports are applied, all translational and rotational degrees of freedom of the target geometry are locked. This setting can better simulate the state of the soft arrangement during construction, where the upper end is close to the ship's side and the lower end is close to the bottom of the water.
[0056] Simultaneously, when applying gravity, the entire structure is considered, and standard Earth gravity is added. When applying buoyancy, since the volume of the arrangement surface is mainly the volume of the concrete ballast blocks, and the actual volume of the arrangement surface and reinforcing strips is not large due to their thinness or slenderness, it is unreasonable to directly apply a uniformly distributed buoyancy force to the entire structure. To better reflect the role of buoyancy in actual engineering, this application decomposes buoyancy into a first buoyancy setting for the concrete ballast blocks, and a second buoyancy setting for the arrangement surface and reinforcing strips. For example, For a concrete ballast block, the first buoyancy F of the concrete ballast block can be calculated using the following formula. 浮砼 The numerical value (unit: Pa):
[0057] Among them, V 砼 (m) 3 ): Volume of concrete ballast block; g (m / s) 2 ): Gravitational acceleration; ρ 水 (kg / m 3 ): density of water; r (m): radius of concrete ballast block. Volume, radius, etc. are shape-related parameters or dimensional parameters of engineering drawings, which can be directly obtained or calculated.
[0058] For the arrangement of the solid surface and the stiffeners, the second buoyancy force F of the solid surface and the stiffeners is calculated by the following formula. 浮布 The numerical value (unit: Pa):
[0059] Among them, V 布 (m) 3 ): Volume of the arranged surface; V 条 (m) 3 ): Volume of the reinforcing bar; S 布 (m) 2 ): The base area of the arranged surface is also a shape-related parameter or dimension parameter of the engineering drawing data, which can be directly obtained or calculated.
[0060] At the same time, the density, Young's modulus, and Poisson's ratio are set. Specifically, when adding a new material in the "Engineering Data" column, you can choose to derive it from "Young's modulus". Then, complete the setting of the three mechanical parameters of the material: "density", "Young's modulus" and "Poisson's ratio". This will automatically generate the bulk modulus and shear modulus, thereby determining the bulk modulus and shear modulus corresponding to the arrangement surface, the reinforcing strip and the concrete ballast block, respectively.
[0061] Therefore, regarding the first buoyancy setting of the concrete ballast block, the force type should be selected as "pressure," and the definition basis should be selected as "component." For smaller soft-bed models (e.g., soft-bed length less than or equal to the length threshold) and a smaller number of concrete blocks, the upper or lower surface of each concrete block can be manually selected as the force target, and the magnitude of the force can be set to the first buoyancy F mentioned above. 浮砼 The direction is set vertically upward (i.e., buoyancy is only applied in the coordinate axis direction corresponding to the vertical direction of the model); however, for large soft-body models (e.g., the length of the soft-body is greater than the length threshold), since the number of concrete ballast blocks is too large, the selection method can be changed to "box selection", the selected target can be changed to "geometry", and all concrete ballast blocks can be manually selected (at this time, the force-bearing surface is the upper and lower surfaces plus the side surfaces of the concrete blocks). Then, the first buoyancy F calculated above can be applied. 浮砼 With further processing, it can be modified into the following formula for the target first buoyancy. The same effect can be achieved:
[0062] Among them, h o (m): Thickness of the concrete ballast block.
[0063] Regarding the setting of the second buoyancy for the arrangement surfaces and stiffeners, the force type is selected as "pressure", the definition basis is selected as "component", the force target is selected as all arrangement surfaces and stiffeners, and the magnitude of the force is the second buoyancy F calculated above. 浮布 The direction is vertically upward (i.e., buoyancy is set only in the coordinate axis direction corresponding to the vertical direction of the model), thereby completing the setting of mechanical parameters, including the setting of first buoyancy, second buoyancy, density, Young's modulus and Poisson's ratio.
[0064] Finally, by setting the material parameters, hydrodynamic parameters, and mechanical parameters of the structure, the constructed soft-body finite element model can be determined.
[0065] In one embodiment, step S400 includes steps S410-S420: S410. Determine the simulated force value and theoretical calculation value of the upper edge of the arrangement surface corresponding to the soft arrangement finite element model, and determine the error value between the simulated force value and the theoretical calculation value.
[0066] First, the theoretical calculated value of the tension at the upper edge of the arrangement surface corresponding to the finite element model of the flexible pad is determined by a preset formula. For example, based on the catenary assumption of the flexible pad, under still water conditions, the formula for calculating the tension per unit width of the pad at the edge of the flap (i.e., the upper edge of the flexible pad) is as follows:
[0067] Where, T (N / m): tensile force per unit width of the padding at the edge of the flap (i.e., the upper edge of the flexible padding), W (N / m) 2 ): Effective weight per unit area of soft raft when submerged in water, which can be obtained by combining the weight per unit area of soft raft with buoyancy; h (m): Drainage depth; a (m): Catenary shape parameter.
[0068] By combining the geometric structure and layout settings of each component in the software, we can obtain:
[0069]
[0070]
[0071] Among them, W 水 (N / m) 3 W: The effective gravity of the water displaced by the soft body 排 (N / m) 3 ): Total weight of the soft mass; ρ 砼 (kg / m 3 ): Density of concrete block; ρ 布 (kg / m 3 ): Density of the arrangement of surfaces; ρ 条 (kg / m 3 ): Density of the reinforcing strip.
[0072] Next, substitute the calculation results into the formula for calculating the unit width pad tension at the edge of the flap (i.e., the upper edge of the soft pad), and you can get the value of the unit width pad tension T. Then, combine it with the width of the pad, and you can get the tension F at the top of the pad. F = unit width tension T × pad width, which is the theoretical calculated value of the upper edge of the pad corresponding to the finite element model of the soft pad.
[0073] Secondly, under the conditions of static water (i.e., water flow force is 0) and forces including standard Earth gravity and second buoyancy (at this time, the model is fixedly supported at the upper and lower ends of the raft), a "force response" result is added to the solution result of the simulation. The application target of the force response is set as the fixed support at the upper edge of the raft, so as to monitor the tensile force on the upper edge of the raft and thus obtain the simulated force value of the upper edge of the raft corresponding to the soft raft finite element model.
[0074] Then, determine the error between the simulated force value and the theoretical calculated value, for example, by calculating the absolute value of the difference.
[0075] S420. When the error value is less than or equal to the error threshold, perform stress simulation of the overall soft-body finite element model and stress simulation of the upper edge of the soft-body finite element model, respectively, generate corresponding stress distribution data, and obtain mechanical simulation results.
[0076] Optionally, when the error value is less than or equal to the error threshold, it indicates that the established soft array finite element model is reliable, the simulation has high accuracy, and it can be applied to practical simulations. Then, the overall soft array finite element model's stress simulation and the stress simulation of the upper edge of the array surface can be performed, generating corresponding stress distribution data to obtain mechanical simulation results (the background process utilizes bulk modulus and shear modulus during the simulation). For example: 1. Stress simulation of the overall soft-body finite element model: Add "Total Deformation" to the "Solve" section of the ANSYS Mechanical module, select "Geometry Selection" for the range limitation method, and select "All Geometry" for the geometry, which includes the geometry of the layout surface, reinforcement strips, and concrete ballast blocks contained in the soft-body finite element model. Add "Equivalent Stress", select "Geometric Selection" for the range limitation method, select "All Geometry" for the geometry, and click "Solve" in the taskbar above to obtain the deformation and equivalent stress distribution of the soft row throughout the row. This is the corresponding stress distribution data of the overall soft row finite element model stress simulation. These corresponding stress distribution data are displayed in the form of deformation and stress cloud diagrams for subsequent analysis. The magnitude of deformation and stress is distinguished by color, from largest to smallest: red, yellow, green, and blue.
[0077] After obtaining the results, the "Probe" tool under the "Results" column at the top of the interface can be used to monitor the deformation or stress of the target point to be analyzed.
[0078] It should be noted that for large soft typography models, the computer's memory requirements are relatively high, and the number of CPU cores in the solution settings should not be too many. Taking a large soft typography model of 48m×40m as an example, the computer's memory should be no less than 64g, and the number of CPU cores should not exceed 4 cores; otherwise, an error will occur and the solution cannot be performed.
[0079] 2. Simulation of the upper edge force of the soft-body finite element model: Based on the stress distribution analysis of the overall flexible raft finite element model above and engineering practice experience, it is known that the upper edge of the flexible raft (i.e., the ship's side during construction) is the area of maximum stress during the raft laying process. Therefore, it is necessary to solve and monitor the tensile force and stress on the upper edge of the flexible raft finite element model. To monitor the tensile force on the upper edge of the raft, a "Force Response" function is added to the "Solve" section of the ANSYS Mechanical module. The positioning method is set to "Boundary Conditions," and the boundary condition is set to "Fixed Support (Upper Edge)." This allows monitoring of the magnitude and direction of the tensile force on the upper edge of the raft.
[0080] To monitor the stress distribution at the upper edge of the flexible structure, add a "Construct Geometry" option in the "Model" pane on the left side of the ANSYS Mechanical module. Then, insert a "Path" within "Construct Geometry," selecting "Edge" for the path type and "Geometry Selection" for the range limitation method. Select the upper edge of the flexible structure as the geometry. In the "Solve" section, add "Equivalent Stress," selecting "Path" for the range limitation method. Choose the newly added "Path" (generated based on the upper edge of the structure) and select "Middle" for the position. This will allow you to monitor the stress distribution at the upper edge of the flexible structure (to make the stress distribution data more visual, you can first select the newly added "Upper Edge Stress"). This will provide the stress distribution data corresponding to the stress simulation of the upper edge of the finite element model of the flexible structure. You can then select "Results" → "Browse" under "Graphics" and "Table Data" in the taskbar at the top of the interface. The software will automatically generate a stress distribution data table and a stress distribution plot based on the table data for subsequent analysis.
[0081] Understandably, if the error value is greater than the error threshold, it means that the accuracy is insufficient. You can perform at least one of the following operations to adjust the number of segments of the catenary, the preset grid cell size, and other related settings until the error value is less than or equal to the error threshold.
[0082] The method of this application embodiment: 1. By establishing a high-precision finite element model of the soft raft, its mechanical behavior under complex water flow can be simulated more realistically, significantly improving the ability to predict risks such as "tearing and rolling" during construction, thereby effectively ensuring the safety of construction personnel and the long-term stability of the engineering structure. This is conducive to promoting the transformation of coastal engineering technology from experience-based to digital and refined, providing a scientific basis for the improvement of relevant industry standards, and yielding significant social benefits. 2. By optimizing the design scheme through precise simulation in advance, the trial and error costs in actual construction and the rework losses caused by engineering accidents can be greatly reduced. The systematic modeling process shortens the design cycle and speeds up the project progress. At the same time, the reasonable model simplification strategy reduces the dependence on high-performance computers, saves software and hardware investment, and provides reliable technical support for the overall cost reduction and efficiency improvement of the project. 3. By using GeoGebra tools and ANSYS for joint modeling, the catenary equation was accurately transformed into a simplified polyline model. Combined with measured engineering data, the geometric and mechanical parameters of the arrangement, reinforcement strips, and concrete ballast blocks were set, and a model that is closer to the real structure of the soft ballast was established. This solved the drawback of the traditional modeling method that simplifies the ballast as a uniform material, improved the modeling accuracy and engineering reproduction, and made the finite element simulation results more accurate and reliable. 4. By decomposing the water flow force using the Morrison formula for flat plates and setting the buoyancy differently (divided into first buoyancy and second buoyancy), the water flow conditions in the soft raft laying project in the estuary and coastal areas are simulated more realistically. At the same time, the water flow force setting can be flexibly and conveniently adjusted for different water flow conditions, which provides convenience for studying the influence of different water flow conditions on the stress of the soft raft.
[0083] Reference Figure 5 The diagram shows a structural block diagram of a simulation device for constructing a software finite element model according to an embodiment of this application. The device may include: The acquisition module is used to acquire engineering drawing data and measured engineering data of the soft deck. Based on the engineering drawing data and measured engineering data, the catenary equation, material parameters, hydrodynamic parameters and mechanical parameters of the model components are determined. The model components include the layout surface, the reinforcing strips and the arrangement of concrete ballast blocks. The generation module is used to cut the catenary curve corresponding to the catenary equation to obtain several secant lines. Based on the several secant lines and engineering drawing data, the layout surface is generated. Based on the engineering drawing data, the reinforcement strip and concrete ballast blocks are drawn and arranged on the layout surface. The module is used to set the connection method and mesh the arrangement surface, reinforcement strips and concrete ballast blocks to obtain the structure. The material parameters, hydrodynamic parameters and mechanical parameters of the structure are set to determine the finite element model of the soft structure. The simulation module is used to perform mechanical simulations on the finite element model of the soft structure and obtain the mechanical simulation results.
[0084] The functions of each module in the device of this application embodiment can be found in the corresponding description in the above method, and will not be repeated here.
[0085] Reference Figure 6 The diagram illustrates a structural block diagram of an electronic device according to an embodiment of this application. The electronic device includes a memory 310 and a processor 320. The memory 310 stores instructions that can be executed on the processor 320. The processor 320 loads and executes these instructions to implement the software-based finite element model construction and simulation method described in the above embodiment. The number of memories 310 and processors 320 can be one or more.
[0086] In one embodiment, the electronic device further includes a communication interface 330 for communicating with external devices and exchanging data. If the memory 310, processor 320, and communication interface 330 are implemented independently, they can be interconnected via a bus to communicate with each other. This bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. This bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.
[0087] Optionally, in a specific implementation, if the memory 310, processor 320 and communication interface 330 are integrated on a single chip, the memory 310, processor 320 and communication interface 330 can communicate with each other through an internal interface.
[0088] This application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method for constructing and simulating the software finite element model provided in the above embodiments.
[0089] This application also provides a chip, which includes a processor for calling and executing instructions stored in a memory, causing a communication device on which the chip is installed to perform the method provided in this application.
[0090] This application also provides a chip, including: an input interface, an output interface, a processor, and a memory. The input interface, output interface, processor, and memory are connected through an internal connection path. The processor is used to execute code in the memory. When the code is executed, the processor is used to execute the method provided in the application embodiment.
[0091] It should be understood that the aforementioned processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. General-purpose processors can be microprocessors or any conventional processor. It is worth noting that the processor can be a processor supporting the Advanced Reduced Instruction Set Computing (RISC) machine (ARM) architecture.
[0092] Further, optionally, the aforementioned memory may include read-only memory and random access memory, and may also include non-volatile random access memory. The memory may be volatile or non-volatile, or may include both. Non-volatile memory may include read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which serves as an external cache. Many forms of RAM are available by way of example, but not limitation. Examples include static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).
[0093] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another.
[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.
[0095] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0096] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process. Furthermore, the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functionality involved.
[0097] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus or device (such as a computer-based system, a processor-included system or other system that can fetch and execute instructions from, an instruction execution system, apparatus or device).
[0098] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. All or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware, the program being stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiments.
[0099] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. This storage medium can be a read-only memory, a disk, or an optical disk, etc.
[0100] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A method for constructing and simulating a soft-structure finite element model, characterized in that, include: Obtain engineering drawings and measured engineering data of the soft trolley. Based on the engineering drawings and measured engineering data, determine the catenary equation, material parameters, hydrodynamic parameters, and mechanical parameters of the soft trolley. The model components include the layout surface, reinforcing strips, and arranged concrete ballast blocks. The catenary curve corresponding to the catenary equation is cut to obtain several secant lines. Based on the several secant lines and the engineering drawing data, an arrangement surface is generated. Based on the engineering drawing data, reinforcement strips and concrete ballast blocks are drawn and arranged on the arrangement surface. The connection method of the arrangement surface, the reinforcing strip and the concrete ballast block are set and the mesh is generated to obtain the structure. The material parameters, the hydrodynamic parameters and the mechanical parameters of the structure are set to determine the finite element model of the soft structure. Mechanical simulation was performed on the finite element model of the soft array, and the mechanical simulation results were obtained.
2. The method for constructing and simulating the soft-array finite element model according to claim 1, characterized in that: The process of determining the catenary equation of the flexible board based on the engineering drawing data and the measured engineering data includes: The catenary equation, the total length equation, and the sag equation of the soft board are constructed, and the catenary equation, the total length equation, and the sag equation are all constructed based on the catenary shape parameters. The parameter values of the catenary shape parameters are determined based on the total length of the catenary, the water depth, the total length equation, and the sag equation. Based on the catenary equation and the parameter values of the catenary shape parameters, the catenary equation for the soft ditch at the laying depth is determined. The engineering drawing data includes the total length of the catenary, and the measured engineering data includes the paving depth.
3. The method for constructing and simulating the soft-array finite element model according to claim 1 or 2, characterized in that: The step of cutting the catenary curve corresponding to the catenary equation to obtain several secant lines, and generating the arrangement surface volume based on the several secant lines and the engineering drawing data includes: Using a preset percentage of the total length of the catenary as the dividing unit, the catenary curve corresponding to the catenary equation is cut to obtain several secant lines. Using the width of the arrangement body as the extrusion depth, the arrangement surface is generated by the extrusion tool according to the extrusion depth and several segments of the cleaving lines, and the thickness of the arrangement surface is set as the arrangement thickness, and the attribute is set as the shell unit attribute. The engineering drawing data includes the total length of the catenary, the width of the row, and the thickness of the arrangement.
4. The method for constructing and simulating the soft-array finite element model according to claim 3, characterized in that: The step of drawing and generating reinforcing strips and arranging concrete ballast blocks on the layout surface according to the engineering drawing data includes: On the arrangement surface, stiffening strip lines are drawn according to the first arrangement interval to generate stiffening strips. The line cross-sectional parameters of the stiffening strip lines are set based on the cross-sectional dimension parameters. On the arrangement surface, concrete ballast planes are arranged according to the second arrangement interval and shape-related parameters. Concrete ballast blocks are generated by extrusion tools based on thickness parameters and the concrete ballast planes. The engineering drawing data includes the first arrangement interval of the reinforcing strips, cross-sectional dimension parameters, and the second arrangement interval of the concrete ballast blocks, shape-related parameters, and thickness parameters.
5. The method for constructing and simulating the soft-array finite element model according to claim 4, characterized in that: The hydrodynamic parameters include the magnitude and direction components of the hydrodynamic force; the connection method setting and mesh generation of the arrangement surface, the reinforcing strip, and the concrete ballast block to obtain the structure, and the setting of the material parameters, hydrodynamic parameters, and mechanical parameters of the structure to determine the soft-body finite element model includes: The connection method between the arrangement surface, the reinforcing strip, and the concrete ballast block is set to a bonded contact. Based on the preset grid unit size range and preset resolution, the result after the connection method is set is meshed to obtain the meshed structure. Material parameters are set for the arrangement surfaces, the reinforcing strips, and the concrete ballast blocks in the structure; The type of water flow force is set as pressure, the magnitude of the water flow force is set as the water flow force magnitude, the definition basis is set as components, the direction component of the water flow force is set as the water flow force direction component, and the force targets are set as the arranged surface and the concrete ballast block, so as to complete the setting of the water flow force parameters. Fixed supports are applied to the upper and lower edges of the arrangement surface, a first buoyancy setting is applied to the concrete ballast block, and the same second buoyancy setting is applied to the arrangement surface and the reinforcing strip. Density, Young's modulus and Poisson's ratio are set to generate bulk modulus and shear modulus to complete the setting of mechanical parameters and determine the finite element model of the soft arrangement.
6. The method for constructing and simulating the soft-array finite element model according to claim 5, characterized in that: The mechanical simulation of the soft-panel finite element model yields the following results: Determine the simulated force value and theoretical calculated value of the upper edge of the arrangement surface corresponding to the finite element model of the soft arrangement, and determine the error value between the simulated force value and the theoretical calculated value; When the error value is less than or equal to the error threshold, the overall soft-panel finite element model is subjected to stress simulation and the upper edge of the soft-panel finite element model is subjected to stress simulation, and the corresponding stress distribution data is generated respectively to obtain the mechanical simulation results.
7. The method for constructing and simulating the soft-array finite element model according to claim 6, characterized in that: The determination of the simulated force value and theoretical calculation value of the upper edge of the arrangement surface corresponding to the soft array finite element model includes: The theoretical calculated value of the upper end tension of the arrangement body at the upper edge of the arrangement surface corresponding to the finite element model of the soft arrangement is determined by a preset formula; Under the conditions of still water and forces including standard Earth gravity and second buoyancy, force response results are added to the solution results to be simulated. The application target of the force response is set as the upper edge of the arranged surface being fixedly supported, and the force on the upper edge of the arranged surface is monitored to obtain the simulated force values.
8. A simulation device for constructing a soft finite element model, characterized in that, include: The acquisition module is used to acquire engineering drawing data and measured engineering data of the soft deck. Based on the engineering drawing data and measured engineering data, the catenary equation, material parameters, hydrodynamic parameters and mechanical parameters of the model components are determined. The model components include the layout surface, the reinforcing strip and the arranged concrete ballast blocks. The generation module is used to cut the catenary curve corresponding to the catenary equation to obtain several secant lines, generate an arrangement surface based on the several secant lines and the engineering drawing data, and draw and generate reinforcing strips and arrange concrete ballast blocks on the arrangement surface based on the engineering drawing data. The module is used to set the connection method and mesh the arrangement surface, the reinforcing strip and the concrete ballast block to obtain the structure, and to set the material parameters, the hydrodynamic parameters and the mechanical parameters of the structure to determine the soft ballast finite element model. The simulation module is used to perform mechanical simulation on the finite element model of the software and obtain the mechanical simulation results.
9. An electronic device, characterized in that, include: A processor and a memory, wherein instructions are stored in the memory and loaded and executed by the processor to implement the method as claimed in any one of claims 1-7.
10. A computer-readable storage medium storing a computer program therein, which, when executed, implements the method as described in any one of claims 1-7.