212 results about "Simulation design" patented technology

The invention relates to the technical field of circuit design, in particular to a digital circuit simulation design method and system. The method comprises the following steps: identifying a design demand document, performing deep semantic analysis and demand constraint mining, and constructing a demand specification constraint parameter set; performing demand complexity evaluation and multi-level division according to the demand specification constraint parameter set, and constructing a basic circuit architecture design blueprint; circuit routing path planning is carried out according to the basic circuit architecture design blueprint, and a standardized circuit topology network is constructed; performing electric signal propagation simulation on the standardized circuit topology network, and performing global circuit adaptability adjustment to obtain a circuit topology design scheme; and carrying out an extreme condition simulation test based on the circuit topology design scheme, and carrying out comprehensive performance evaluation to obtain a circuit performance evaluation report. By deeply understanding the user demand intention, the circuit layout matched with the user demand is designed, and the overall circuit performance is improved.

The invention relates to the technical field of tire simulation design, in particular to a method, system and equipment for calculating contribution of tire parts to camber rigidity and a storage medium. The method is based on a finite element model and comprises the following steps: firstly, carrying out two-dimensional axial symmetry modeling and inflation analysis on a tire, rotating to generate a three-dimensional model, then establishing contact with a rigid road surface, applying rated inflation pressure and load, and carrying out steady-state rolling and camber working condition simulation to obtain reference camber rigidity comprising all parts; and then target parts such as a tread, a belted layer and sidewall rubber are selected, the Young modulus of the target parts is reduced to 0.01%-5% of a design value, the analysis is repeated on the premise that the Poisson's ratio of the target parts and other parts and boundary conditions are kept unchanged, and the camber rigidity of the target parts after degradation is obtained. The camber rigidity contribution value and contribution rate of the camber rigidity are calculated by comparing the difference value of the camber rigidity of the two working conditions and combining the occurrence frequency of the target component in the tire structure, and quantitative stripping of the camber rigidity influence of each component is achieved. According to the method, the component-level contribution spectrum can be quickly obtained on the premise of controllable errors, and an effective basis is provided for directional optimization design of the tire camber rigidity performance.

The invention relates to the technical field of chip simulation, in particular to a voltage logic simulation design method and system for a passive internet-of-things tag chip. The method comprises the following steps: performing energy characteristic measurement on the tag chip, and calculating voltage fluctuation and logic gate triggering probability to obtain energy logic state mapping data; state transition probability distribution mapping is carried out according to the energy logic state mapping data, and a transition probability distribution tensor is constructed; collecting measurement environment parameters in the energy characteristic measurement process, and performing dynamic environment interference compensation on the transition probability distribution tensor to generate an interference compensation distribution tensor; carrying out simulation precision demand distribution based on the interference compensation distribution tensor, and constructing a layered simulation configuration file; and performing multi-precision parallel simulation execution based on the layered simulation configuration file, and generating a probabilistic verification report. Through precise and efficient logic simulation, the reliability of chip design is improved, and the fault probability is reduced.

The invention provides an alkaline electrolytic cell temperature compound control method and system, a medium and equipment. The method comprises the steps that a full-process dynamic simulation model containing key process equipment meeting preset requirements in an electrolytic hydrogen production system is established; a feed-forward controller with current as input and feed-forward compensation amount as output is obtained through analysis of a full-process dynamic simulation model; based on the feed-forward compensation amount, the temperature of the electrolytic bath is stabilized at a set value under the change of the current I; a feedforward-cascade composite control system is constructed; and closed-loop control over the temperature of the electrolytic cell is completed based on a feedforward-cascade composite control system. According to the method, the feed-forward controller based on full-process dynamic simulation design is combined with cascade control, so that accurate lead compensation of wide-width current fluctuation is realized, the problem of response lag of single cascade control is effectively solved, and the dynamic response speed and the anti-interference capability of electrolytic bath temperature control are remarkably improved.

The invention provides a stay cable tensioning process simulation optimization design method and system based on finite element analysis, and the method comprises the steps: building a finite element model of a tower beam structure of a target cable-stayed bridge; the target cable-stayed bridge is a cable-stayed bridge constructed by a support method and provided with asymmetric leaning towers; based on the finite element model, stay cable tension process simulation of the tower beam structure under different jump tension sequences is carried out, and time-varying mechanical response of the tower beam consolidation system is obtained; and according to the time-varying mechanical response, the cable force effectiveness and the tower beam deformation continuity are taken as targets, a tension sequence is optimized through a multi-point coincidence approximation strategy, and simulation design of automatic iterative optimization is carried out. According to the stay cable tensioning process simulation optimization design method and system based on finite element analysis, the optimal jump tension sequence is solved in the simulation model, the evolution amplitude of the stress behavior of the tower beam in the stay cable tensioning bridge forming process is reduced, the evolution smoothness of the stress behavior is improved, and the phenomena of hard sudden change, discontinuity and even internal damage are prevented.

The invention discloses a landscaping landscape design method based on big data, and belongs to the technical field of landscape simulation design, and the method specifically comprises the steps: obtaining microclimate data of a target area and surrounding building environment data, and inputting the data into a dynamic microclimate simulation model to obtain a microclimate dynamic distribution diagram; identifying the position and the type of a microclimate discomfort area based on the distribution map, and generating a landscape design element set; carrying out overlay analysis on the element set and the distribution map, and adjusting the attribute and position of each element to form a preliminary design scheme; the preliminary scheme is input into a model to simulate microclimate distribution after implementation, and the difference degree of new and old distribution diagrams is calculated; and when the difference degree exceeds a preset range, iteratively adjusting the design elements and repeating the optimization process, and outputting a final scheme until the difference degree reaches the standard. According to the invention, dynamic coordination of landscape design and microclimate environment is realized.

The invention belongs to the field of flight platform simulation design, and discloses a flight platform simulation integrated device based on man-unmanned interaction. The device comprises a manned aerial vehicle platform basic excitation device, a manned aerial vehicle task system excitation device, an unmanned aerial vehicle platform basic excitation device, an unmanned aerial vehicle ground control station excitation device, a network management simulation device and a data link message access device. According to the method, high requirements are provided for information services according to systematic application requirements, and no excitation environment based on a typical platform exists in systematic integration verification currently. In view of completeness and credibility of system integration verification, an aviation platform digital prototype close to the reality needs to be built urgently, and the product designed by the invention provides interface adaptation of manned aircraft / unmanned aerial vehicle infrastructure, task system equipment, network management and links, guarantees simulation test verification of a universal platform, and has a wide application prospect. A verification environment is provided for platform integration design and verification work in the actual technical state of the platform, the problems of platform integration design and the like in the actual state of the platform are solved, the verification environment is provided for verification work, and a universal simulation test platform is provided for system integration verification.

The invention discloses a side face direct-insertion wiring terminal block structure and an elastic piece simulation design method of the side face direct-insertion wiring terminal block structure. Comprising an insulating shell, a conducting strip, a first elastic piece, a second elastic piece and a push block abutting against the elastic pieces, a wire can be inserted along the side face and clamped by a wire clamping block, and electricity conduction and disengagement prevention are achieved; the elastic piece is made of a metal material with resilience, and the elastic piece is bent to form a mounting part and a camber beam structure so as to provide stable clamping force. In order to optimize the performance of the elastic sheet, a simulation design method is adopted to establish an elastic sheet finite element model, set material attributes and constraint and loading conditions, carry out mesh refinement on a bending area and a wire clamping opening, start large deformation analysis and draw a force-displacement curve, so that the equivalent stiffness, the maximum stress and the deformation of the elastic sheet are obtained. Through simulation comparison of different design schemes, the optimal structure meeting the strength and resilience requirements can be determined. According to the invention, the stable conduction of the side plugging terminal and the predictable design of the performance of the elastic sheet are realized, and the assembly reliability and the design efficiency are improved.

The invention provides a SiC controller electromagnetic-thermal-force full-coupling simulation design method and system, and belongs to the technical field of power electronic device simulation design, and the method comprises the steps: constructing a bidirectional real-time coupling model of an electromagnetic field, a thermal field and a mechanical stress field; the irradiation dose is determined based on the expected working environment of the SiC controller, irradiation damage factors are introduced to correct SiC material parameters, and a bidirectional real-time coupling model is input; different temperature conditions and stress conditions are input into the bidirectional real-time coupling model for multi-working-condition simulation, performance parameters of the SiC material are output, and a quantitative relation model of the performance parameters, the temperature and the stress is established to reveal the performance degradation law of the SiC material; and based on the bidirectional real-time coupling model and the performance degradation law of the SiC material, taking the switching loss and the temperature rise as optimization targets, and carrying out collaborative optimization on parameters of the SiC controller. The simulation precision is improved, the performance of the SiC controller is optimized, the reliability is improved, and the service life is prolonged.

The invention relates to the technical field of simulation design, in particular to a design method and system based on a radar antenna, and the method comprises the following steps: resolving a phase error based on thermal deformation, analyzing a dynamic sidelobe variance in combination with displacement spectrum integration and covariance mapping, and generating a waveguide skeleton through electromagnetic energy mapping fluid damping; according to the method, thermally induced phase error data is introduced, the influence of structural deformation on the phase is accurately calculated, and meanwhile, calculation of dynamic group delay and group delay difference is combined, so that the phase correction accuracy is improved. Prediction of influence of structural deformation on electrical performance, data fusion of multiple physical fields and automatic process optimization are realized, design precision and efficiency are improved, limitation of single simulation software is avoided, factors such as material loss and gain evolution are accurately corrected in the design process, performance requirements of the high-frequency radar are met, and complex environment adaptability is improved.

The invention provides a stamping process diagram optimization design method and system based on Autoform simulation. The stamping process diagram optimization design method comprises the steps of data input and preprocessing; preliminarily generating a process diagram; carrying out Autoform simulation analysis; automatically optimizing parameters; dynamic process diagram output and knowledge base integration are carried out, defects such as wrinkling and cracking are warned in advance through Autoform multi-physical field simulation, the mold testing frequency is reduced by more than or equal to 50%, and the mold testing cost is greatly reduced; the blank holder force and the draw bead resistance coefficient are automatically adjusted through algorithms such as a gradient descent method, the blank holder force precision is improved to be within + / -5%, and manual experience dependence is reduced; through simulation-design closed-loop iteration, the mold debugging period is shortened to 1-2 weeks from traditional 4-5 weeks, and the design efficiency is improved; simulation data are directly embedded into the dynamic process diagram, version control and difference comparison are supported, and design traceability is ensured; a knowledge graph is constructed through historical simulation data, initial parameters of similar workpieces are recommended through machine learning, the repeated simulation workload is reduced by more than or equal to 30%, and the design reusability is improved.

The invention relates to the technical field of glass bottle production, in particular to a three-dimensional simulation design method and system for a light-weight glass bottle production digital mold. The method comprises the following steps: constructing a digital mold geometric model for a glass bottle mold; a bubble escape priority path is identified according to the digital mold geometric model, and a glass bottle digital simulation model is constructed; executing molten glass flow-heat transfer-bubble evolution coupling simulation based on the glass bottle digital simulation model to extract a potential bubble nucleation and aggregation area; calculating a bubble defect tendency value of the potential bubble nucleation and aggregation area, and performing glass bottle production defect space mapping to generate a glass bottle production defect risk area; differentiated defect risk optimization is carried out on the glass bottle production defect risk area, so that the production design requirement of the light-weight glass bottle is met. According to the invention, through bubble escape path identification and three-dimensional coupling simulation, accurate positioning and differential optimization of the bubble defect risk of the glass bottle are realized.

The invention relates to the technical field of multi-objective optimization, in particular to a cable electrical performance simulation design method and system based on multi-objective optimization. The method comprises the steps of constructing a low-fidelity model and a high-fidelity model, fusing and evaluating features based on feature sensitivity, and performing staged evaluation by using a non-dominated sorting genetic algorithm. According to the method, exploration is accelerated by using a low-fidelity model at an optimized initial algebra, and hierarchical non-dominated sorting and high-fidelity evaluation refinement solution sets are applied in a convergence stage. Meanwhile, a constraint dominating principle and a dynamic penalty function are integrated, and it is ensured that the generated Pareto optimal solution set is strictly located in a feasible region. The efficiency bottleneck between high-precision simulation and optimization iteration is effectively solved, and the optimization efficiency of complex cable design and the reliability of a final scheme are remarkably improved.

The invention provides a simulation design method of an urban ecological corridor, which comprises the following steps: S1, collecting a multi-temporal thermal infrared remote sensing image of a city to be simulated and designed and preprocessing to obtain a core heat island node; s2, heat resistance surface construction is carried out based on different surface types, a heat transfer resistance surface is obtained, and the different surface types comprise a digital elevation model, an impervious surface index, a normalized vegetation index, a normalized building index, a normalized water body index and a gradient; s3, taking the core heat island node as a network end point, searching a communication path with the lowest resistance on a heat transmission resistance surface, and obtaining an urban heat island corridor; and S4, on the basis of the urban land utilization data, ecological lands of forests, wetlands, large parks and water bodies serve as candidate ecological source lands, ecological connection paths are constructed from the angle of ecological connectivity by adopting the S2 and the S3, and the urban ecological corridor is obtained.

The invention relates to the technical field of digital three-dimensional simulation, in particular to a three-dimensional simulation design method and system for a light-weight automobile accessory production digital mold. The method comprises the following steps that a mold high-risk geometric area, influencing molten metal flowing, in a three-dimensional CAD digital model of the automobile accessory is recognized, a dynamic flow resistance field covering a mold cavity is constructed, and an ideal simulation filling path of filling synchronization and tail end priority is reversely planned; obtaining an initial three-dimensional automobile accessory mathematical model; and executing three-dimensional simulation according to the ideal simulation filling path, evaluating a main pouring gate correction parameter and a riser correction coefficient, applying the main pouring gate correction parameter and the riser correction coefficient to the initial three-dimensional automobile accessory mathematical model, updating pouring gate and riser structures to complete digital mold design optimization, and obtaining an optimized automobile accessory mold. By constructing the three-dimensional dynamic flow resistance field and reversely planning the ideal filling path, automobile accessory mold structure optimization is achieved, and casting quality stability under lightweight design is ensured.

The present invention relates to the field of mechanical engineering technology, and in particular to a three-dimensional simulation design method and system based on an elevator structure. The method comprises the following steps: obtaining an elevator structure drawing; constructing a three-dimensional elevator assembly according to the elevator structure drawing; simulating a car static load according to the three-dimensional elevator assembly to obtain car static load data; detecting the car structure strength based on the car static load data; evaluating welding defects based on the car structure strength to generate welding defect data; identifying weld weak areas according to the welding defect data; determining the amount of car structure wear based on the weld weak areas; predicting the risk of car floor fracture according to the wear of the car structure; performing welding optimization design based on the risk of car floor fracture to obtain welding optimization design data; and performing traction simulation according to the three-dimensional elevator assembly to obtain traction data. The present invention improves the safety and stability of the elevator structure based on mechanical engineering technology, and significantly improves the design accuracy and efficiency.

This invention relates to the field of fabric printing simulation optimization technology, specifically a method and system for nylon fabric printing simulation design optimization based on finite element analysis. The method includes: acquiring microscopic images and physical property parameters of the nylon fabric; constructing a three-dimensional microscopic finite element model reflecting the yarn interweaving structure; selecting a printing area on the model surface and defining ink droplet ejection and ink fluid property parameters; using these parameters as initial conditions, employing a fluid-structure coupling algorithm to simulate the dynamic process of ink droplet impact, wetting, and penetration, acquiring three-dimensional ink distribution data and fabric stress-strain response data; extracting printing quality characteristic indicators, comparing stress-strain data with fabric deformation thresholds, and evaluating the impact of printing on fabric structural integrity; and generating an optimization and adjustment scheme for printing process parameters based on the evaluation results. This method improves simulation accuracy, achieves simultaneous evaluation of printing quality and fabric structural integrity, and optimizes printing process design.

A common data model is created for an automation system, which includes an ontology of semantic relationships between entities of the automation system captured from multiple simulation tools based on a simulation design of the automation system. Artifacts, such as simulation and automation artifacts may be attached to corresponding entities in the common data model. New automation artifacts may be generated utilizing logic definitions from the simulation artifacts in the common data model. Changes to an artifact may be propagated to affected artifacts in the common data model utilizing dependencies defined by the semantic relationships. A snapshot of the common data model, including the newly generated or modified artifacts are committed to a version control system. A continuous integration execution engine executes virtual commissioning for validating each automation artifact against a simulation environment in a simulation of the automation system, based on the commit of the common data model.

The invention discloses a novel stirring device for ocean well drilling and workover mud, which comprises a variable frequency motor, the variable frequency motor is connected with a speed reducer, the bottom of the speed reducer is fixed on a mounting plate, the lower part of the mounting plate is connected with a stirring shaft through a coupler, the upper part of the stirring shaft is connected with the output end of the speed reducer, and the lower part of the stirring shaft is connected with stirring blades; a plurality of mounting pieces are uniformly arranged on the outer cylindrical surface of the drum, the upper surfaces of the mounting pieces and the vertical axis of the drum form acute angles, the upper surfaces of the mounting pieces and the horizontal upper surface of the drum form acute angles, and blades are movably mounted on the mounting pieces to ensure the inclination angle progress of the blades. According to the invention, through CFD simulation design, the influence of the inclination angle, torsion angle, shape and height from the bottom of the container on the stirring effect is analyzed, the design parameters, number and distribution of the blades are optimized, directional flow is formed in the container, the turbulence energy loss is reduced, and the stirring efficiency is improved.

The invention discloses an engine ventilation process simulation calculation method based on three-dimensional iteration calibration, and belongs to the technical field of engine simulation data processing. The invention discloses an engine ventilation process simulation calculation method based on three-dimensional iteration calibration. The method comprises the steps that a one-dimensional simulation model and a three-dimensional simulation model of an intake and exhaust pipe system of an engine are constructed; same parabolic pressure wave boundary conditions are applied to air ports of the one-dimensional simulation model and the three-dimensional simulation model; calibrating the one-dimensional simulation model by iteratively adjusting structural parameters of key pipe sections of the one-dimensional simulation model by taking pressure waveforms of air cavities and header pipe nodes in the three-dimensional simulation model as references; and applying the calibrated one-dimensional simulation model to the one-dimensional model of the whole engine. By adopting the engine ventilation process simulation calculation method based on the three-dimensional iteration calibration, the problem that the whole machine simulation design efficiency is low due to the fact that the coupling relation is complex and the calculation time is long in the existing engine three-dimensional ventilation process can be solved.

The application discloses a simulation design method for energy-saving reconstruction of a permanent magnet synchronous reluctance motor, and aims to solve the problem of low matching degree of the existing reconstruction method and actual working conditions and limited energy efficiency improvement. The method collects and analyzes full working condition parameters, constructs a three-dimensional magnetic circuit-structure coupling simulation model, identifies key loss parameters and sets multi-dimensional constraint conditions, adopts multi-parameter collaborative optimization and an improved branch and bound method for optimization, and performs engineering adaptation and verification after screening the optimal scheme through simulation verification. The application realizes optimal energy consumption of the motor in full working conditions, improves the motor efficiency by more than 15% after reconstruction, and ensures that the power factor is not less than 0.92, and meanwhile, the reconstruction cost and resource utilization rate are considered, different types of motors are adapted, and scientific and efficient technical support is provided for large-scale energy-saving reconstruction of the permanent magnet synchronous reluctance motor.

The application discloses an implementation method and device of a ternary phase diagram based on D3.js, equipment and a medium, comprising: obtaining a ternary analysis data table based on the simulation design of high-purity ethanol; constructing a rectangular coordinate system in a web browser to be drawn a ternary phase diagram, determining the side length L of the ternary phase diagram based on the size of the web browser, and setting the display length and range of each coordinate axis in the D3.js library; moving the coordinate axis to obtain an equilateral component triangle with a side length L; drawing a component residual curve according to the rectangular coordinates of each component data in the equilateral component triangle confirmed by the ternary analysis data table; and confirming the component coordinate point in the ternary phase diagram coordinate system according to the real pixel position of any point in the equilateral component triangle. The application can draw a ternary phase diagram on a two-dimensional plane, support the conversion of points, lines and surfaces, and more conveniently observe the relationship among three components.

The present application belongs to the technical field of nuclear fuel simulation design, and aims at the problem that the interface reaction between U3Si2 fuel particles and Al matrix of the existing U3Si2-Al fuel is prone to occur at high temperature, and provides a U3Si2-Cu dispersion type nuclear fuel with interface stability at high temperature and a simulation construction method, a U-Si-Xe-M quaternary potential function is developed by a gradient optimization algorithm of multi-objective simulated annealing combined with a MEAM model, wherein M is any one of Al, Cu, Mg and W, and atomic scale information of irradiation defects and fission gas at the interface in the U3Si2-M fuel is obtained by means of calculation simulation, and finally the U3Si2-Cu dispersion type nuclear fuel is obtained. The U3Si2-Cu dispersion type nuclear fuel provided by the present application has high interface stability at high temperature.

The invention relates to the technical field of spaceflight, in particular to a design method and device of a spaceflight optical load and a computer program product. The design method of the spaceflight optical load comprises the following steps: determining the emphasis dimension of a to-be-designed optical load according to a received task demand, and determining an optical weight, a mechanical weight and a thermal control weight based on the emphasis dimension; determining a performance optimization objective function according to the optical weight, the mechanical weight, the thermal control weight, the optical index, the mechanical index and the thermal control index; and performing simulation design on the optical load based on a simulation model and the task demand, and optimizing the simulation design at least based on the performance optimization objective function.

The present application relates to the technical field of aircraft engine simulation design, and particularly relates to a method for estimating aircraft engine thrust based on flight parameters. The aircraft engine thrust estimation method provided by the present application estimates the aircraft engine thrust from the perspective of flight parameter data, in combination with aircraft engine design parameters, taking into account task requirements and adopting the finite element method. Compared with the traditional scheme based on data, i.e., relying on a large amount of flight parameter data and combining statistical rules to obtain the aircraft engine thrust spectrum, the aircraft engine thrust estimation formula derived based on the physical formula has more reliable physical meaning and physical constraints, the distortion degree of the obtained aircraft engine thrust spectrum caused by data sampling error is smaller, the trend and characteristics are more in line with the real rules, and the aircraft engine thrust spectrum has more guiding significance and prediction value, thereby providing strong theoretical support for aircraft engine thrust spectrum prediction.

The present disclosure provides a multi-energy IDR scheduling method and system based on energy element digital twins, which belongs to the field of energy optimization scheduling technology. The scheme designs digital twin intelligent entities corresponding to typical energy elements of physical entity systems through model mapping and data mapping between digital environment and physical entity system, so as to establish flexible resource twin mapping; and on this basis, conducts subject behavior simulation design including value orientation and social behavior of energy elements in the digital environment, constructs digital twins that can simulate the behavioral characteristics of massive flexible resources, and then completes IDR scheduling, so that the scheduling method can effectively meet user needs, and at the same time, meet low-carbon goals to a certain extent, and reduce scheduling costs.

The invention is suitable for the technical field of luggage design, and particularly relates to a luggage pull rod dynamic impact strength simulation design method, which comprises the following steps: ensuring the reliability of a design result by obtaining a structure attribute set, a historical attribute set and a design attribute set of a target design luggage; modeling simulation processing is carried out based on the structure attribute set and the historical attribute set, accurate recognition of the high strain energy density area and the geometric weak position of the pull rod is achieved, a feature response set containing the geometric information and mechanical response data of the weak area is obtained, and a clear target spot is pointed out for optimization design; according to the characteristic response set and the design attribute set, variable density lattice structure generation processing is carried out on the high strain energy density area, a traditional empirical design and repeated physical test mode is replaced, the research and development period is greatly shortened, the trial and error cost is reduced, the dynamic impact strength and structural stability of the luggage pull rod are improved, and the service life of the luggage pull rod is prolonged. And reliable technical support is provided for high-performance, light-weight and low-cost design of the luggage pull rod.

The invention discloses a nanoindentation simulation design-based material indentation depth calibration method, device, equipment and medium, and relates to the technical field of material mechanics characterization, and the method comprises the steps of establishing a continuous gradient material finite element geometric model corresponding to a Brookfield indenter nanoindentation experiment, and constructing a continuous gradient material constitutive model with an elastic modulus continuously changing; combining the two models to perform indentation simulation at a plurality of preset maximum indentation depths to obtain simulation results; calculating an equivalent elastic modulus based on a load displacement curve in a simulation result to determine a material indentation depth corresponding to a preset maximum indentation depth of the indenter; and establishing a quantitative mapping model between the preset maximum indenter indentation depth and the material indentation depth so as to map a test result of the Brookfield indenter nanoindentation experiment at the preset maximum indenter indentation depth to the corresponding material indentation depth according to the quantitative mapping model. And the nanoindentation test result can be accurately mapped to the specific depth position of the continuous gradient material.

The invention relates to the technical field of building three-dimensional simulation, in particular to a building three-dimensional simulation design method and system based on BIM. The method comprises the following steps: inputting foundation survey data in a three-dimensional simulation interface, delimiting a bearing analysis area, and layering the bearing analysis area according to a depth direction; loading design load values layer by layer in layers in the depth direction of the bearing analysis area, recording the displacement and stress value of each layer in real time, and calculating the bearing strength of each stress point in the layered area; comparing the bearing strength of the force bearing point with a preset bearing threshold value, and determining a layering position which reaches or exceeds the threshold value; building reinforcement options are determined according to the layering positions exceeding the threshold value, the bearing strength is adjusted, and building three-dimensional simulation design data are output; through building three-dimensional simulation design, building design is more stable and safer.

The present application relates to the technical field of vacuum electronic products, in particular to a traveling wave tube process digital management system capable of data feedback and problem tracing. The present application realizes the structured storage, full-process tracking and information recording of the full production process data of the traveling wave tube and parts; supports data feedback, realizes the production actual measurement data feedback linkage simulation design system, the simulation design system analyzes the actual production data to correct the simulation model, and improves the simulation model accuracy; supports problem tracing, automatically compares the test system actual measurement results with the simulation design results to analyze the differences, and then the problem tracing database finds the possible reasons and process positioning to accurately predict the product performance, realizes the rapid identification of the traveling wave tube development process technical bottleneck, provides support for the traveling wave tube new product development, so as to ensure that the traveling wave tube products and parts can be delivered with high quality, high standard and on time.