91 results about "Finite element analysis software" patented technology

The invention discloses a skin stretch forming residual stress rapid calculation method which comprises the following steps: randomly generating a combination of a pre-stretching amount, a coating elongation rate and a friction coefficient, submitting the combination to finite element analysis software to execute batch simulation, and generating a result file named by process parameters; traversing all the result files, extracting node numbers and residual stress values, and storing the node numbers and the residual stress values as a text format data set corresponding to the process parameters; a full-connection neural network model is constructed, an input layer receives the three process parameters of the pre-stretching amount, the coating elongation and the friction coefficient, a hidden layer comprises multiple layers of neurons and adopts a ReLU activation function, and an output layer generates residual stress values of all nodes; training the neural network model by using the data set, and adjusting the network weight through an optimizer; and inputting target process parameters to the trained neural network model, and outputting residual stress calculation results of all nodes of the skin. The technical purposes of rapidness, high efficiency and low cost are achieved.

The invention discloses a building structure explosion multistage early warning and damage assessment integrated analysis method, which relates to the field of building structure safety, and comprises a BIM-FEM model conversion module, an FEM explosion response and damage assessment module, an Internet of Things gas sensor acquisition module, an early warning analysis and grading early warning module and a data storage module. And an efficient automatic model conversion interface between the BIM and the FEM is developed. The interface realizes bidirectional data conversion between the BIM model and the finite element analysis model; a gas explosion load is applied to finite element analysis software, dynamic response and damage of each component under the gas explosion load are studied through numerical simulation, and anti-explosion damage evaluation attributes of each component are formed. The problem of low modeling efficiency of a complex structure in finite element analysis software is effectively solved, and automatic data extraction, model mapping and result write-back between the BIM model and the FEM model are realized.

The invention discloses a beam structure fault intelligent diagnosis method based on a DIC and a CNN. The method comprises the steps that a beam structure model is established in finite element analysis software, a plurality of node positions corresponding to DIC measuring points are arranged on the surface of a structure, loads are applied, time domain vibration response signals of the multiple measuring points are extracted, and Gaussian white noise is superposed; performing wavelet packet analysis and multi-band adaptive noise reduction on the acquired multi-channel vibration signals, judging the energy distribution characteristics of the signals by using the change rate of wavelet energy entropy, and adaptively adjusting the length of a segmented window to decompose original non-stationary signals into a plurality of stationary time periods; the inherent frequency, the damping ratio and the vibration mode modal parameters of the structure are obtained through working modal analysis; and constructing a feature sample set by taking the extracted modal parameters and time domain features as inputs, inputting the feature sample set into a convolutional neural network model for training and prediction, and realizing classification and identification of various states such as structure health, early cracks, middle cracks and late cracks.

The invention provides an engine cylinder cover thermal fatigue virtual test verification method and system, and relates to the technical field of virtual simulation modeling, and the method comprises the steps: obtaining the micro-macro parameter characteristics of an engine cylinder cover; constructing a parameterized model of micro-macro coupling; performing reverse solution on the control parameters of the physical rack based on a target temperature circulation curve set by a user to obtain a boundary condition parameter set required by a virtual test; generating a virtual-real homologous file according to the parameterized model and the boundary condition parameter set; actual measurement temperature data after the physical rack executes the control instruction file and simulation temperature data after the finite element analysis software executes the simulation input file are collected; according to the two-dimensional topological structure of the fire power surface, virtual thermocouple measuring point coordinates are generated; establishing data channel mapping according to the measuring point coordinates of the virtual thermocouple; calculating temperature errors of the plurality of measuring points; when the temperature error exceeds a threshold value, a correction prompt for the measuring point is output; and verifying the parameterized model according to the correction prompt.

The present application relates to the technical field of stress field of drum, in particular to a kind of winding type permanent-magnet outer rotor hoist drum stress field prediction method.The present application is to solve the problem that the stress field of permanent-magnet outer rotor hoist drum cannot be predicted in prior art, therefore a new winding type permanent-magnet outer rotor hoist drum stress field prediction method is provided, comprising the following steps: one, establishing the three-dimensional geometric model of drum;Two, import three-dimensional geometric model into finite element analysis software;Three, obtain the simulation stress field of drum;Four, obtain the modal base function and modal coefficient capable of representing the simulation stress field of drum;Five, establish nonlinear relationship regression model and approximate reconstruction stress field;Six, predict the running position and steel wire rope tension at future time;Seven, the running position and steel wire rope tension at future time predicted are introduced into step five, so as to realize the prediction of stress field.The present application realizes the prediction of drum stress field.

This invention relates to the field of engineering machinery structural optimization technology, specifically to a method and system for topology optimization of excavator structures based on real-time stress field reconstruction. The method involves acquiring deformation and stress data of key parts of the excavator boom using a distributed fiber optic grating sensor array, and then modeling and simulating these data in finite element analysis software to obtain virtual data. A Kalman filter is designed to correct errors between the virtual and actual test data, and the corrected data is used to train the Kalman filter to predict the real-time stress field distribution. Furthermore, a topology optimization model of the excavator structure is established, encoding material properties into weight matrices in a neural network, and using stress constraint partial differential equations as constraints. This achieves high-precision reconstruction of the excavator boom stress field under actual working conditions, providing accurate boundary conditions for topology optimization.

The invention belongs to the technical field of biomass boilers, and particularly relates to a water circulation design method for a pipeline support boiler, which comprises the following steps of: firstly, constructing a 3D geometric model of the biomass boiler, simplifying to obtain a simplified model, then defining material attributes and fluid attributes of the simplified model, performing stress simulation analysis by utilizing simulation software, and finally, calculating the water circulation of the pipeline support boiler. Obtaining a constraint lower limit of each pipeline size parameter in the simplified model meeting the structural mechanical property requirement, then forming an adjustment scheme by upwards adjusting each pipeline size parameter based on the constraint lower limit, and substituting the obtained adjustment scheme into the simplified model to obtain the structural mechanical property requirement. And after setting boundary conditions, carrying out finite element analysis by utilizing finite element analysis software to obtain a medium flow analysis result, and finally screening out an adjustment scheme with the most appropriate circulation ratio based on the medium flow analysis result. According to the biomass boiler, the circulation ratio of the biomass boiler can be effectively increased on the premise that the stress stability is guaranteed.

The invention discloses a roof reticulated shell splicing structure and a construction method, and belongs to the technical field related to building construction technologies, the roof reticulated shell splicing structure comprises a plurality of drum joints, and six butt joint assemblies are fixed to the outer portions of the drum joints at equal intervals; the butt joint assembly comprises a connecting rod, an inner cylinder is fixed in the connecting rod, four rows of telescopic springs are fixed in the inner cylinder, the outer end of each row of telescopic springs is fixedly connected with an extrusion block, and the extrusion blocks protrude out of the connecting rod; finite element analysis software is used for carrying out topological optimization on the tail plate so as to meet the preset strength and rigidity requirements under the target mold clamping force, an integrated reinforcing rib network is designed, and meanwhile, in a casting cavity at a pull rod penetrating hole, a plurality of connecting rods are arranged in the casting cavity at the pull rod penetrating hole. And a structure used for presetting the high-strength alloy steel sleeve is designed, so that the problem of complex reticulated shell assembly is solved, and the comprehensive construction risk is reduced.

The invention relates to the technical field of marine flexible riser monitoring, in particular to a marine flexible riser axial strain monitoring and verification method. The strain monitoring device comprises a corrosion-resistant pipe clamp and a stepped shaft type strain rod, a fiber bragg grating sensor is packaged on the strain rod and is fixed on a vertical pipe through a metal pipe clamp, and the strain value of the vertical pipe is calculated through the change of the central wavelength of the fiber bragg grating sensor. The strain relation between the strain of the vertical pipe and the strain rod is obtained; finite element models of the riser and the strain monitoring device are established by adopting Ansys finite element analysis software, theoretical values of riser strain are calculated, the theoretical values are compared with simulation values, the strain monitoring device shows high accuracy, the actual monitoring accuracy is as high as 90%, the actual monitoring accuracy is remarkably improved compared with a traditional mode, and the reliability of monitoring data is ensured.

The invention discloses a machine tool guide rail cooling aperture and cooling liquid parameter collaborative optimization design method, and relates to the technical field of machine tool guide rail cooling, and the method comprises the following steps: building an overall model of a machine tool guide rail slide block in SolidWorks; the model is imported into ANSYS WorkBench finite element analysis software to be subjected to one-way flow thermosetting simulation analysis; parameterization setting is conducted on the cooling hole diameter, the cooling liquid inlet temperature and the flow speed; obtaining a data sample through Latin hypercube experiment design; constructing a response surface model of the cooling parameters about the average thermal deformation of the guide rail; the method comprises the following steps of: optimizing a cooling parameter by utilizing ANSYS WorkBench; and verifying and comparing the average thermal deformation of the guide rail of the initial model and the optimization model. According to the method, key design variables including the aperture and the cooling flow parameters can be optimized at the same time, the guide rail average thermal deformation serves as an optimization target, the globally optimal cooling parameter scheme is rapidly determined, and therefore the thermal state precision and design efficiency of the machine tool are remarkably improved.

The invention relates to the technical field of metal processing, in particular to an optimization method for prolonging the service life of an aluminum alloy extrusion die and improving the forming precision of the aluminum alloy extrusion die, which comprises the following steps of: adopting finite element analysis software, constructing a three-dimensional model of the aluminum alloy extrusion die matched with reality, setting material attributes and boundary conditions, and establishing a three-dimensional model of the aluminum alloy extrusion die; an innovative design concept of asymmetric reinforcing ribs is introduced, H13 high-toughness hot working steel is adopted as a mold core material, pre-hardened 40Cr steel is adopted as a mold sleeve material, the wear resistance and corrosion resistance are improved through mold core surface nitriding treatment, and an innovative design of an internal annular cooling channel and a spiral backflow structure is adopted, so that the aluminum alloy extrusion mold with higher performance and reliability is obtained. The problems that a traditional aluminum alloy extrusion die is short in service life, low in forming precision and difficult to continuously optimize and improve after a production test due to unreasonable stress distribution, poor material selection and matching, insufficient surface and contact surface strengthening, unreasonable cooling channel structure and the like are solved.

The application discloses a kind of flat wire winding permanent magnet synchronous motor hybrid thermal network modeling method, belong to the temperature field analysis design technical field of permanent magnet synchronous motor.Utilize two-dimensional finite element analysis software FEMM to calculate the detailed temperature distribution in the radial direction of motor, again in combination with thermal resistance network method to winding end space area and motor axial heat dissipation are modeled, on the basis of guaranteeing calculation precision, reduce model calculation time.The application has the advantages of high calculation precision, high calculation efficiency, compared with three-dimensional transient field finite element analysis, the model has faster calculation speed.On the other hand, compared with the traditional lumped parameter network model, the model can show more abundant permanent magnet motor temperature field results.

The invention discloses a stress-strain behavior prediction method for irradiated zirconium alloy and a computer product thereof. The method comprises the following steps: establishing a three-dimensional model of a fuel cladding tube; creating a material and setting material parameters, endowing the created material to the three-dimensional model, and assembling model parts to form an assembly; setting analysis conditions for the assembly; creating an input file and correspondingly modifying the input file according to the analysis condition; iterative solution is carried out by using a pre-constructed parameter solution algorithm based on a physical concept constitutive model, so that the stress-strain behavior of the irradiated zirconium alloy is rapidly and accurately obtained; the physical concept constitutive model is a physical concept constitutive model containing irradiation and temperature influence. According to the method, the physical concept constitutive model including irradiation and temperature influence is constructed, rapid updating of material parameters is realized by adopting an incremental method based on the physical concept constitutive model, and more accurate stress-strain behavior prediction is realized by combining finite element analysis software.

This application relates to the field of intelligent assisted calculation and shell spring metal forming technology, and provides a method and system for intelligent calculation and prediction of springback in hyperbolic aluminum plates. The method includes: automating the setting of forming analysis strategies in finite element analysis software; collecting stress data and amplitude data of the aluminum plate in the Z direction to generate an analysis file; automatically processing the analysis file using a series of pre-written restart analysis scripts to obtain the Z-direction displacement of each point on the hyperbolic aluminum plate after springback; using the automatically processed results, the corresponding pre-simulation coordinates, and the material parameters during analysis as input data to train a neural network model; setting material parameters and inputting coordinate data tables; and outputting the coordinate correction results of each point on the hyperbolic aluminum plate based on the trained neural network model, thereby achieving the prediction and correction of springback errors in the hyperbolic aluminum plate. This represents a leapfrog upgrade in hyperbolic aluminum plate springback analysis from "manual trial and error" to "intelligent prediction."

The application discloses a kind of river bottom settlement prediction methods of shield tunneling underpass river, belong to underpass river settlement prediction field, comprising the following steps: S1, geological parameter acquisition: before tunnel construction, obtain the geological parameters of tunnel along line and underpass river river bottom;S2, three-dimensional geological modeling: based on the geological parameters collected in step S1, three-dimensional geological model of tunnel along line and underpass river river bottom is established using three-dimensional geological modeling software;S3, construction parameter setting: according to tunnel construction scheme, determine the construction parameters of shield underpass river;S4, numerical simulation: three-dimensional geological model and construction parameters are input into finite element analysis software, the soil deformation under the condition of considering groundwater seepage is numerically simulated, and the settlement of river bottom in the construction process is predicted.The above-mentioned river bottom settlement prediction method of shield tunneling underpass river can predict the settlement of river bottom in real time and accurately, provide scientific basis for shield construction, and ensure the smooth progress of tunnel construction.

The invention provides a path planning method based on milling deformation of an irregular trapezoidal frame type thin-walled workpiece. The path planning method comprises the following steps: determining a plurality of alternative milling feed paths; establishing a model of a to-be-processed workpiece in finite element analysis software, dividing grids, importing a pre-measured temperature field of the to-be-processed workpiece into the model, and performing simulation to obtain an initial residual stress field; for each milling feeding path, the dynamic milling force load, the dynamic milling thermal load and the removed grid units of the advancing points on the path are calculated in real time, so that a simulation result corresponding to each milling feeding path is obtained, and the simulation result comprises a milling machining residual stress field and machining deformation; and according to a simulation result, determining a preferable milling feed path in the plurality of alternative milling feed paths. Thus, the removed grid units are combined with the dynamic load of the moving heat source, and the milling process of the milling cutter can be better simulated.

The application provides a liquid-carrying rocket transverse vibration analysis method considering sloshing effect, characterized in that the liquid in the tank has the sloshing effect, and the method comprises the following steps: 1, establishing a finite element model for the transverse vibration analysis of the whole rocket; 2, collecting the structure size of each tank of the liquid-carrying rocket and the liquid parameters in the tank; 3, equivalently taking the first-order sloshing liquid in the tank as a transverse spring oscillator model; 4, recalculating the liquid level height; 5, establishing a mass unit of the sloshing liquid in the tank; 6, establishing a spring connection node of the mass unit of the sloshing liquid in the tank; 7, connecting the reference node and the spring connection node through a spring unit; 8, simulating the remaining liquid in the tank by using a virtual mass method; 9, repeating; and 10, submitting a finite element analysis software to complete the calculation. The application can effectively simulate the influence of the sloshing effect of the liquid in the tank on the transverse vibration characteristics of the whole rocket, and is convenient for obtaining more accurate transverse vibration characteristics of the whole rocket.

The invention discloses a finite element calculation method for the impeller front end clearance of a high-temperature CO2 centrifugal compressor, and relates to the technical field of centrifugal compressors. The method comprises the following steps: 1, creating a three-dimensional entity calculation model in UG-NX software, wherein the entity calculation model comprises a volute rear half part, a volute front half part, a bolt, a gasket, an air seal body, a centrifugal impeller, a rotating shaft and a sealing shaft sleeve; 2, importing the entity calculation model into finite element analysis software Workbench, and carrying out mesh refinement processing on a contact surface, a bolt and a gasket in the entity calculation model; the method breaks through a traditional experience-dependent design mode, converts fuzzy estimation of the impeller front-end clearance into accurate quantification through modeling-analysis-calculation-clearance determination full-process standardized design, fundamentally solves the problems of efficiency reduction caused by too large clearance under a high-temperature working condition, frictional wear caused by too small clearance and the like, and improves the working efficiency of the impeller front-end clearance. And the safety and the stability of equipment operation are obviously improved.

The invention discloses an electrical impedance tomography detection method for a dike termite channel, which relates to dike detection and comprises the following steps: vertically burying an electrode array in a dike, establishing a three-dimensional geometric model in finite element analysis software, and obtaining a dike internal conductivity distribution diagram by adopting a dynamic electrical impedance tomography algorithm. And extracting a suspected ant cave feature position based on the conductivity distribution diagram, carrying out field verification on the suspected ant cave feature position, and confirming the existence and position of the ant cave. According to the method, the dynamic electrical impedance tomography algorithm is combined with finite element model construction, so that three-dimensional visual detection of the ant-suffering channel in the dam is realized, the limitation that a detection area cannot be fully covered by traditional manual drilling is solved, and the space precision and range integrity of ant-suffering positioning are improved.

The application provides a kind of wheel preforming forming key parameter intelligent optimization design method, comprising: generating parameterized precision forging die CAD model;According to the assembly relationship, import finite element analysis software, based on the pre-defined configurable file format general template and mapping update rule dynamic modification model, build finite element analysis model containing preforming and precision forging process;With the preforming reduction and indentation die shape parameters as design variables, iteratively perform the following operations: update finite element model and continuously carry out preforming, precision forging simulation, extract the maximum value of preforming and precision forging forming load peak, hub filling rate and rim filling rate;Check whether to meet the constraint condition: the maximum value of forming load peak does not exceed the preset forming load limit, the hub filling rate is not less than the preset minimum allowable hub filling rate, and the rim filling rate is not less than the preset minimum allowable rim filling rate;If not satisfied, adjust the design variable and iterate again, if satisfied, output the optimized key parameters.

The application discloses a kind of based on the construction method of digital twin model of six-degree-of-freedom mechanical arm, the transmission of force in the inside of mechanical arm is described, using finite element analysis software carries out finite element analysis to each each spare multiple positions simultaneously extracting result data;The result data of finite element is preprocessed, then each group of data is carried out K near neighbor algorithm, the data set required by machine learning is made;Data fitting is carried out to data set using machine learning to obtain the proxy model of each spare simplified calculation, each proxy model is integrated by statics model, and the AI model of complete mechanical arm is obtained;Through AI model client, the information received can be calculated, and the stress distribution result of the mechanical arm at this time is obtained;Visual mechanical arm UI is built in Unity scene, joint position information can be sent to AI model through UI, and simultaneously receives the operation result of Ai model, and the stress size of the grid point of different regions of mechanical arm is visualized.

The invention provides an anti-hooking performance analysis method and equipment for a grillwork of a pressurized water reactor fuel assembly and a medium, and relates to the technical field of nuclear reactors. According to the three-dimensional model of the guide wing of the grillwork and the transverse maximum interference distance between the adjacent grillworks in the lifting process of the fuel assembly, the hooking simulation analysis of the fuel assembly grillwork is realized by utilizing finite element analysis software, the hooking prevention performance of the grillwork can be preliminarily predicted, the situation that unreasonable grillwork design is transmitted to the next stage is avoided, and the hooking prevention performance of the fuel assembly grillwork is improved. Waste of time, manpower, material resources and financial resources is reduced, and the design efficiency of the fuel assembly grillwork is improved.

The invention provides a method for analyzing the influence of surface deformation caused by a carbon sequestration project on a shaft, and relates to the technical field of carbon sequestration, and the method comprises the steps: obtaining geological parameters of a sequestration region of the carbon sequestration project, and obtaining structure parameters of a shaft to be analyzed in the sequestration region; constructing a three-dimensional finite element model corresponding to the shaft through finite element analysis software based on the geological parameters and the structural parameters; acquiring earth surface deformation parameters of the sealing region from carbon dioxide sealing, and simulating in the three-dimensional finite element model according to the earth surface deformation parameters to obtain stress and strain distribution of the shaft under the action of earth surface deformation; and determining an influence analysis result of surface deformation caused by the carbon sequestration project on the shaft according to the stress and strain distribution. According to the method, the geological parameters of the storage area and the structural parameters of the shaft are comprehensively obtained, and the stress and strain response of the shaft under the geological change effect can be accurately simulated in combination with construction of the finite element analysis model.

The invention relates to a grid reinforced structure high-precision modeling and analysis method considering an age forming process, and the method comprises the steps: firstly, carrying out the process mechanical analysis for the age forming process, obtaining the manufacturing characteristics of a structure, and obtaining the prior information of a manufacturing result without the need of actual manufacturing; and then, carrying out high-precision modeling aiming at an analysis result, realizing a node corresponding matching relation with a perfect model by using a rotating shaft and an interpolation algorithm, generating a high-precision model containing manufacturing result prior information by using a node offset mode, and finally, importing the high-precision model into finite element analysis software to complete prior analysis. Therefore, according to the modeling and analysis method, a high-precision model associated with the age forming process can be established without actual manufacturing, and the bearing capacity of the structure can be predicted more accurately. According to the method, accurate structure modeling, analysis and design for the age forming process are achieved.

The present application belongs to the technical field of solid engine nondestructive testing and finite element analysis, and relates to a solid engine finite element analysis method based on CT image fusion modeling, which comprises the following steps: step S1: performing CT step-by-step scanning on key positions of a defect high-occurrence area of a solid engine to be tested to obtain real CT images of the defect part; step S2: constructing a cross-section model of a part to be simulated, simulating CT data of an unscanned area, and generating a simulated CT image; step S3: fusing the real CT image and the simulated CT image to generate a triangular facet mesh model; step S4: importing the triangular facet mesh model into 3-matic software to generate a volume mesh model that can be used for finite element analysis; and step S5: importing the volume mesh model into Abaqus finite element analysis software to perform health state evaluation. The present application fuses the simulated CT image and the real CT image, and effectively reduces the detection cost and technical difficulty.

This invention discloses a method and system for predicting stress in buried natural gas pipelines under landslide conditions, belonging to the field of oil and gas pipeline engineering safety technology. The method includes: establishing a three-dimensional numerical simulation model of the landslide-stabilized soil-bimetallic composite pipeline using finite element analysis software; calculating the maximum stress value of the pipeline under different parameter combinations of various influencing factors to form a simulation dataset; cleaning and normalizing the dataset and dividing it into training and testing sets; constructing a BP neural network model with influencing factors as input and the maximum stress value as output; and using the artificial fish swarm algorithm to globally optimize the weights and thresholds of the model to obtain the optimized AFSA-BP prediction model. This invention effectively solves the problems of low prediction accuracy and susceptibility to local optima in traditional methods, achieving rapid and accurate prediction of pipeline stress under the coupled effects of multiple factors, providing reliable technical support for pipeline safety assessment and risk prevention.

The disclosure provides a grinding simulation method based on random distribution of polyhedral abrasive grains on a grinding wheel surface, and relates to the technical field of grinding processing. The grinding simulation method based on random distribution of polyhedral abrasive grains on a grinding wheel surface comprises the following steps: generating a base model of a grinding wheel and an initial abrasive grain model corresponding to the grinding wheel according to characteristics of the grinding wheel; performing multiple cutting operations on the initial abrasive grain model to generate multiple target abrasive grain models; determining distribution characteristics of each target abrasive grain model on the base model; combining each target abrasive grain model with the base model based on the distribution characteristics to serve as a geometric model of the grinding wheel; and inputting the geometric model of the grinding wheel into finite element analysis software to perform grinding simulation on a workpiece to be processed. The grinding simulation can be performed with high precision.

The invention discloses a finite element model hole repairing method based on grid node displacement backstepping, and belongs to the technical field of finite element simulation. The method comprises the following steps: carrying out grid division on a three-dimensional model containing a shaft hole; generating entity grids for each part of the model and exporting the entity grids; establishing a hole repairing calculation model in finite element analysis software; defining at least two analysis steps in the hole repairing calculation model; bolt pre-tightening force is applied to the hole repairing calculation model; boundary constraint is applied to the opponent piece; submitting calculation, and extracting the displacement value of each node in the shaft hole under the action of the pre-tightening force after calculation is completed; subtracting the displacement value from the coordinates of the nodes in the axle holes in the original entity grid to obtain corrected node coordinates; and updating the coordinates of the corresponding nodes in the original entity grid file by using the corrected node coordinates. According to the method, the effect of the boring process can be equivalently achieved on the simulation level, and a correct model basis is provided for subsequent accurate finite element analysis of strength, fatigue and the like.

The application discloses a method and device for inverse form-finding of cable elements, and a storage medium, which projects a building space curved surface to an xoy plane to obtain a building outer contour projection line; an initial net shell structure model is designed according to the building outer contour projection line and combined with building modeling needs; real boundary conditions are set for the net shell structure model, real loads are applied, all beam elements in the net shell structure model are replaced by cable elements, initial stiffness is set, and an initial cable structure model is obtained; a finite element analysis software is used to obtain deformation forms and deformation data of the cable structure model under real loads and real boundary conditions; the obtained deformation data is scaled and inverted in combination with actual building sizes to obtain an optimal structure form matched with an actual building form. The form-finding calculation process of the application does not need multiple iterative calculations, effectively saves time cost, greatly improves structure form-finding efficiency, is simple to operate, low in design difficulty and high in design efficiency.

The application provides a ship structure strength digital simulation verification method and device. The method comprises the following steps: constructing a three-dimensional digital model of a ship structure according to ship design drawings and design specifications; setting load and boundary conditions according to the operation environment and design requirements of the ship; performing finite element division on the constructed three-dimensional digital model by using finite element analysis software, and performing finite element analysis calculation according to the set load and boundary conditions to obtain the mechanical response of stress and strain of the ship structure; verifying and evaluating the ship structure strength according to the finite element analysis result, and if the requirement is not met, optimizing the three-dimensional digital model, and re-performing finite element analysis and strength verification. The application solves the problems of insufficient model precision, low calculation efficiency and low reliability of verification results in the existing ship structure strength verification method.