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128 results about "Design analysis" patented technology

Soft soil deep foundation pit earth excavation construction scheme planning method and system

The invention relates to the technical field of design analysis, in particular to a soft soil deep foundation pit earth excavation construction scheme planning method and system.The soft soil deep foundation pit earth excavation construction scheme planning method comprises the following steps that a three-dimensional geological model is built based on geological exploration data, and rheological parameters, shear strength parameters and permeability coefficients of all soil layers are extracted to serve as layering parameters; according to the layering parameters and preset supporting structure rigidity parameters, a soil body rheological rate compensation coefficient is calculated, and an earthwork block excavation scheme with the grading thickness difference is generated; and in the excavation process, the displacement rate and pore water pressure data of the supporting structure are collected in real time, and when a monitoring value exceeds a preset threshold value, a dynamic adjustment instruction of the block excavation scheme is triggered. According to the method, the layering thickness and the blocking form are intelligently controlled according to different sensitivity levels, the matching coping capacity for soft soil instability inducements is improved, and the limitation that a single physical parameter dominates in traditional blocking design is broken through.
Owner:长大市政工程(广东)有限公司

Green low-carbon building simulation analysis method based on three-dimensional model

The invention discloses a green low-carbon building simulation analysis method based on a three-dimensional model, and the method comprises the steps: 1, carrying out the pre-analysis, constructing a BIM model of an initial building design, obtaining the surrounding environment information of a building, and inputting the information into building simulation software; 2, environment simulation and design analysis are carried out, building design is optimized, and a first design stage is formed; forming a second construction stage; monitoring the energy consumption of the building in real time to form a third operation stage; step 3, simulation optimization; 4, simulating and analyzing data mining; and a fifth step of information sharing and assistance. According to the method, design decision and optimization are assisted through simulated beforehand analysis and simulation, so that energy consumption and carbon emission of the building in each life cycle are reduced, the green performance of the building is improved, efficient and accurate energy consumption evaluation and optimization of a building design scheme are achieved, and generation of a low-carbon and energy-saving building scheme is effectively promoted.
Owner:CHINA POWER ENG CONSULTING GRP CORP EAST CHINA ELECTRIC POWER DESIGN INST

Flexible sensor design method and system based on topological optimization

The invention relates to the technical field of sensor design analysis, in particular to a flexible sensor design method and system based on topological optimization, and the method comprises the following steps: building a coupling equation of a flexible sensor under the action of multiple physical fields of mechanics, electricity and thermotics, simulating stress, potential and temperature distribution of different areas in the design space based on material parameters; dividing a design space into a high-stress area, a transition area and a low-stress area according to stress, potential and temperature distribution, and defining a performance target for each area; and dynamically adjusting the state of the unit material, and adaptively adjusting the connectivity constraint of the topological structure according to the distribution change of the material in the iteration process. According to the invention, the sensitivity of potential response is effectively improved, so that the sensor has efficient signal detection capability in a stress concentration area, and unnecessary material redundancy is reduced at the same time.
Owner:嘉兴南湖学院

Method for designing large cavern group of hydropower station under extremely high crustal stress condition

The invention provides a large cavern group design method for a hydropower station under an extremely high crustal stress condition. The method comprises the following steps: S1, analyzing a three-dimensional initial crustal stress field of a factory; s2, rock mass mechanical characteristic analysis; s3, underground powerhouse cavern group surrounding rock stability analysis; s4, carrying out design analysis on an anchor cable pre-tightening coefficient and a supporting opportunity; s5, performing micro-seismic early warning analysis on deformation and fracture of the surrounding rock of the cavern group of the underground powerhouse; and S6, providing underground powerhouse rockburst criteria in combination with measured rockburst data: providing underground powerhouse rockburst occurrence and evolution mechanisms based on rock mass characteristics, rockburst characteristics, micro-seismic data and monitoring results, analyzing surrounding rock stress release, relaxation and deformation characteristics, and evaluating surrounding rock stability. The design safety and reliability of the large cavern group of the hydropower station are improved, the construction risk and cost are remarkably reduced, and meanwhile the requirement for environmental protection is met. The improvement measures act together to ensure smooth implementation and long-term stable operation of an engineering project.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

Finite element design analysis method and system for end structure of belted layer of engineering tire

The invention belongs to the technical field of tire engineering design, and discloses an engineering tire belted layer end structure finite element design analysis method and system. Comprising the steps of obtaining and preprocessing tire carcass contour data and initial belted layer parameters, conducting belted layer end parametric modeling on the basis of a standardized tire geometric model, constructing a durability finite element analysis model to obtain a stress-strain distribution field, conducting multi-parameter sensitivity analysis to determine a key influence factor weight matrix, and obtaining a stress-strain distribution field. And optimally designing a belted layer end structure based on the matrix, and finally performing durability verification and evaluation. According to the method, through accurate geometric expression, flexible parametric modeling, accurate performance analysis and multi-objective optimization design, belted layer end stress distribution uniformization and structural rigidity optimization are achieved.
Owner:中策橡胶(天津)有限公司

Method for calculating rigidity of composite beam connected by high-strength bolts

The invention relates to the technical field of bridge construction, and discloses a method for calculating the rigidity of a composite beam connected by high-strength bolts, which comprises the following steps of: considering the most unfavorable load possibly occurring in a normal use stage and a construction stage during calculation, calculating a standard value of the most unfavorable load combination on the composite beam, and setting a mid-span displacement judgment value at the same time. The method analyzes the stress state of the steel-concrete interface under the action of various loads, can accurately capture the critical point of interface shear stress and friction failure, can accurately simulate the nonlinear change rule of the equivalent stiffness of the composite beam along with the loads by adopting different stiffness calculation formulas, and meanwhile, the design method systematically considers multiple influence factors, and the design method is simple and convenient. According to the method, the nonlinear mechanism of a bolt connection area is simulated, a relatively accurate displacement value can be given, economic evaluation is considered, and the method is a relatively comprehensive composite beam design analysis method.
Owner:CHINA RAILWAY 18TH BUREAU GRP CO LTD +1

Motion game design analysis method, system and equipment and storage medium

The invention belongs to the field of adaptive analysis design of confrontation game difficulty, and discloses an action game design analysis method, system and device and a storage medium. By constructing the behavior feature data set and evaluating the habitual confidence, the behavior habits of the player in the confrontation process can be accurately grasped, a reliable basis is provided for subsequent difficulty adjustment, and the problem of insufficient player behavior analysis in the prior art is solved. According to the method, the confrontation action-difficulty mapping relation is constructed based on a large amount of test data and objective division logic, so that difficulty division better conforms to actual feelings of players, and the defect that existing difficulty division is not scientific is overcome. According to the method, autonomous adjustment of the difficulty of the simulated role confrontation action is achieved by evaluating the adaptability of the player, the adjustment reasonability is analyzed, it is ensured that the difficulty adjustment is suitable for the player, the playability of the game and the game experience of the player are improved, and the defect that tactical adjustment lacks autonomy and reasonability evaluation in the prior art is overcome.
Owner:NANJING FORESTRY UNIV

Parameterization design method and system for infilled wall-frame flexible connection

The invention provides a parameterization design method and system for infilled wall-frame flexible connection, and relates to the technical field of parameterization design. The method comprises the following steps: establishing a unitized model of the flexible connection structure, performing performance analysis based on boundary conditions, and forming performance trend data of the unitized model; target boundary condition information is collected, connection structure combinatorial analysis is carried out in combination with unit model performance trend data, and a target initial flexible connection model is formed; and performing overall optimization design analysis on the target initial flexible connection model to form overall analysis result data. According to the method, reasonable parameterization design can be carried out on the flexible connection structure of the concrete frame structure and the masonry filler wall, so that the design efficiency and reliability are improved.
Owner:华煜建设集团有限公司 +1

Method and system for parallel design and technology optimization

Method and System for Parallel Design and Technology Optimization are disclosed. The disclosed method enables efficient parallel design and technology optimization (PDTO) and allow designers to sign off the technology development or find the optimal design point with the design analysis tools. The method includes generating, from a manufacturing technology process, a baseline SPICE model based on technology specification and manufacturing process data; extending the baseline SPICE model to a corresponding description of technology specification window in the circuit design process, where the technology specification window describes extended ranges of device model parameters; extracting a targeted SPICE model using the technology specification window; verifying, by a circuit design process that operates in parallel to the manufacturing technology process, the integrated circuit meets a design specification using the targeted SPICE model.
Owner:PRIMARIUS TECH CO LTD

Storage design analysis method and device, medium and program product

The invention relates to the technical field of integrated circuit design, and discloses a storage design analysis method and device, a medium and a program product. The method comprises the following steps: acquiring a hardware description language design file, and identifying each random access memory module in the hardware description language design file according to a preset grammar definition; abstracting each random access memory module into a structured model, wherein the structured model comprises a plurality of read-write port models; and obtaining target parameters matched with the read-write port models corresponding to the structured models, and obtaining memory classifications corresponding to the structured models according to the target parameters matched with the read-write port models. According to the scheme of the embodiment, efficient analysis of the storage design can be achieved in the RTL compiling stage, and the analysis efficiency of the storage design can be improved.
Owner:SHENZHEN JINGRUI IND SOFTWARE CO LTD

Large-language-model-based intelligent design optimization system for large aluminum alloy castings

The invention discloses an intelligent design optimization system for a large aluminum alloy casting based on a large language model, and aims to improve the casting design efficiency, optimize material selection and improve the data sharing safety. The system comprises five modules: an intelligent design analysis module, a material selection and optimization module, a multi-modal data analysis module, a feedback learning module and a block chain data management module. The intelligent design analysis module performs semantic analysis on historical design documents and standards by using a large language model, automatically generates a structure optimization scheme, and reduces stress concentration and defect risks. And the material selection and optimization module recommends an optimal aluminum alloy material formula based on design requirements and performance indexes, and proposes process parameter adjustment suggestions. And the multi-modal data analysis module integrates the text, the simulation data and the material characteristics to generate a design optimization scheme. The feedback learning module collects production feedback data, continuously optimizes the model, and enhances the design adaptability. And the block chain data management module records and protects key data in the design process to ensure the integrity and security of the data. The system can remarkably improve the casting design efficiency and quality, has good industrial application prospects, and is suitable for design and optimization of castings of complex structures such as high-speed rails, aerospace and high-voltage power transmission and transformation.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY

Multi-modal knowledge graph generation method and system for hardware design analysis

The invention provides a multi-modal knowledge graph generation method and system for hardware design analysis, which break through design, verification and physics, realize information barriers among the three traditional EDA (Electronic Design Automation) fields, perform semantic fusion and association on information from different data fields, create a unified and queriable hardware design knowledge representation, and improve the reliability of hardware design analysis. And a coherent and operable unified knowledge model is formed. A multi-modal design knowledge graph is created by integrating a simulation result (dynamic data) and a physical implementation feature (performance data) into a static structure model, and a comprehensive design model with structure, behavior and performance features is analyzed in a unified framework. An engineer does not need to manually switch between different tools and data formats, but can access all-dimensional information about a static structure, a dynamic behavior and a physical property of a design through a single query interface.
Owner:WUHAN LINGJIU MICROELECTRONICS CO LTD

Product design auxiliary system and method based on big data

The invention belongs to the technical field of product intelligent design, and particularly relates to a product design auxiliary system and method based on big data. The method comprises the following steps: collecting product design, market, production and after-sales full-link data, and combining time sequence analysis to extract a dynamic trend; in the scheme optimization stage, material availability, process suitability and cost controllability verification is carried out based on production end data, and design parameters are corrected through an after-sales data feedback mechanism; and adopting an improved Pareto optimization algorithm and dynamic threshold evaluation to screen an optimal scheme. The system for realizing the method comprises a data processing module, a design analysis module, a scheme optimization module and an interactive output module. Through full-link data fusion, production feasibility verification and closed-loop optimization, the problem of design and production disjunction is effectively solved, and product reliability and comprehensive benefits are improved.
Owner:UNIV OF CHINESE ACAD OF SCI

Design analysis method for negative Poisson's ratio metamaterial reinforced seamless expansion joint

The invention relates to a negative Poisson's ratio metamaterial enhanced seamless expansion joint design analysis method, which comprises the steps of collecting geometric construction parameters and mechanical property data of a negative Poisson's ratio metamaterial, and constructing a training data set; training a deep learning reverse design model and a mechanical property prediction model; the design parameters of the expansion joint device are optimized through a multi-objective optimization algorithm; an optimized expansion joint device is manufactured by adopting a 3D printing technology, the durability of the expansion joint device is evaluated by combining mechanical property data and a fatigue life prediction model, and iterative optimization is performed through a deep learning reverse design model. The expansion joint device has the beneficial effects that the impact resistance and the energy absorption capacity of the expansion joint device are remarkably enhanced through the design of the concave hexagonal honeycomb structure of the negative Poisson's ratio metamaterial and the nonlinear strain energy density model optimization geometric parameters.
Owner:温州市鹿城区城市建设中心(温州市鹿城区市政公用建设中心) +1

Complex system reliability allocation method based on optimization algorithm and fault tree model

The invention belongs to the technical field of reliability design analysis, and particularly discloses a complex system reliability distribution method based on an optimization algorithm and a fault tree model, and the method comprises the steps: building a fault tree model containing common cause failure events based on the composition and function principle of a target system and common cause events which may occur in the target system; based on preset equipment reliability data, endowing a top event occurrence probability value to the fault tree model; and based on the fault tree model, constructing a constrained optimization problem, and solving the constrained optimization problem to obtain a reliability allocation result of each device in the target system. According to the method, the reliability distribution result is closer to the actual situation, and the reliability distribution precision is improved.
Owner:CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719

Method, system and equipment for post-processing simulation of force-bearing structures based on numerical calculation

The present invention discloses a post-processing method, system and device for simulation of a force-bearing structure based on numerical calculation, and belongs to the technical field of structural deformation simulation. In the existing post-processing simulation scheme, the cloud map display effect will be disturbed by the overall displacement, resulting in the difficulty of the generated cloud map to accurately reflect the actual situation of the deformation of the structure itself. A post-processing method for simulation of a force-bearing structure based on numerical calculation of the present invention identifies the overall motion data by creating a deformation data acquisition unit, an interference motion identification unit, a local feature simulation unit, and a structural cloud map generation unit, and removes the overall motion data from the force motion results to obtain the self-deformation data, thereby being able to effectively distinguish between real deformation and overall motion phenomena, so that the self-deformation characteristics of the structural model caused by the load will be highlighted when the cloud map is displayed, which is helpful to quickly locate structural problems, improve the quality and efficiency of engineering design analysis, and meet the actual needs in engineering design.
Owner:ZHEJIANG YUANSUAN TECH CO LTD

Reinforced concrete box-type arch bridge design analysis system

ActiveCN119691874AGeometric CADData processing applicationsCost benefit assessmentStructural analysis
The invention relates to the technical field of structural analysis, in particular to a reinforced concrete box arch bridge design analysis system which comprises an environmental influence analysis module, a dynamic load simulation module, a damage risk analysis module and a life cycle cost analysis module. According to the method, environmental data of a construction area are analyzed, environmental factors and actual use conditions are considered, the practicability and accuracy of design are improved, the design better meets the actual use conditions by analyzing the real-time influence of regional climate changes on material performance and combining actual data of dynamic loads, and the design efficiency is improved. Through damage risk assessment, potential fatigue and damage problems can be predicted in a design stage, environmental adaptability and a structural damage risk result are combined, and the service life of the arch bridge is predicted, so that cost-benefit assessment is more comprehensive, and more effective cost control and design scheme optimization can be performed; and the long-term sustainability and performance of the infrastructure are improved.
Owner:GUIZHOU TRANSPORTATION PLANNING SURVEY & DESIGN ACADEME

Automobile side door anti-collision bar assembly and door inner panel welding strength analysis method and system

The present invention provides a method and system for analyzing the welding strength of a side door anti-collision bar assembly and a door inner panel of an automobile, and belongs to the technical field of automobile component performance evaluation. The welding strength analysis method of the present invention comprises the following steps: selecting a vehicle model to be evaluated; obtaining the moment of inertia and the door rotation angular velocity ω, and then obtaining the energy E of the rotating particle system according to the moment of inertia and the door rotation angular velocity ω; obtaining the thickness ratio a of the rear bracket thickness to the inner panel thickness, and the number of welds b, and then calculating the threshold value K of cracking of all welds based on the thickness ratio a and the number of welds b; and evaluating the welding strength according to the value of E / K. The present invention also provides a system for implementing the welding strength analysis method. The beneficial effects of the present invention are: greatly improving the consistency between the early design analysis and the later test results, and improving the efficiency of design analysis.
Owner:SAIC GM WULING AUTOMOBILE CO LTD

Generating a reduced block model view on-the-fly

A word-level design model may be loaded into memory. Next, a masking layer may be created which includes objects in the word-level design model that are not used by an IC design analysis system. The masking layer may then be used to provide a reduced block model view on-the-fly to the IC design analysis system.
Owner:SYNOPSYS INC

Radiator flow channel three-dimensional reconstruction and fluid performance prediction system and method thereof

The invention relates to the field of radiator design analysis, in particular to a radiator flow channel three-dimensional reconstruction and fluid performance prediction system and a method thereof.The method comprises the steps that a parameter input module receives a radiator three-dimensional model and boundary information and calculates parameters of a flow channel section and an inlet section; the streamline drawing module receives the parameters and calculates and determines starting coordinates and boundary points of a streamline; and the streamline smoothing module is used for smoothing the streamline. The flow channel curved surface gridding module receives the smoothed streamline coordinates, generates a three-dimensional curved surface based on spatial structure points, and performs adaptive non-uniform mesh generation and boundary constraint intelligent mesh optimization; the fluid performance prediction module receives the flow channel curved surface grid, inputs fluid performance analysis parameters and predicts fluid performance; the calculation result output module receives the prediction result, arranges and summarizes the prediction result and outputs the result; and through streamline tracking and smoothing processing, accurate reconstruction of the complex flow channel of the radiator is realized, the modeling precision is improved by more than 40%, and the design accuracy and efficiency of the radiator are improved.
Owner:DONGGUAN DONGYISI CHUANG ELECTRONICS CO LTD

Classical costume design analysis system based on image recognition

The invention relates to the technical field of image processing, in particular to a classical costume design analysis system based on image recognition, which comprises a pattern structure analysis module, a shape contour modeling module, a color change judgment module, a design system modeling module and a design feature output module. According to the method, by introducing the pattern structure analysis based on the gray scale gradient distribution sequence, the abnormal area in the complex pattern is accurately recognized and positioned, the automation and accuracy of analysis are improved, by recognizing the contour curvature change and the color semantic anomaly, the influence of illumination interference and color gamut shift is solved, and the accuracy of analysis is improved. According to the method, fine analysis of costume patterns and colors is ensured, through multi-dimensional dynamic evolution modeling of patterns, contours, colors and the like, the evolution process of classical costume design can be accurately tracked, key evolution events of design styles and shapes can be accurately positioned, the efficiency and reliability of design analysis are optimized, and the design quality is improved. And the intelligence and precision of classical costume design analysis are comprehensively improved.
Owner:NANCHANG UNIV

Multi-axis random load fatigue crack propagation life analysis method

The invention discloses a multi-axis random load fatigue crack propagation life analysis method. The method comprises the following steps: converting a multi-axis random load at a structure loading position into an equivalent random load at a dangerous point; establishing association between the random load at the dangerous point and the damage parameter on the crack propagation plane, and determining the most dangerous load combination through a multi-axis load projection theory; utilizing a rain flow counting method which introduces a processing strategy of rearranging according to a cycle starting time sequence to obtain cycle information and load sequence information of a random load spectrum; and based on a rain flow counting result, performing crack propagation life analysis by combining an NASGRO model and a cycle jump method, and calculating the total crack propagation life by using a Miner damage accumulation criterion. According to the method, the influence of the phase difference and stress ratio on the crack propagation life before the multi-axis random load is considered, the accuracy of crack propagation life prediction under the multi-axis random load is improved, and a basis is provided for damage tolerance design analysis of engineering components.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

A pavement design analysis method based on space-time synchronous coupling of environmental load factors

The application relates to a pavement design analysis method based on environment load factor space-time synchronous coupling, which comprises the following steps: inputting road environment data and load data into an environment load factor space-time synchronous coupling analysis model to obtain an analysis result; the model establishment process is as follows: obtaining historical data of a road to obtain a pavement performance attenuation model under the coupling action of an environment and a load; obtaining experimental data of the road to obtain a pavement performance attenuation model under the action of the load; obtaining a pavement performance attenuation model under the action of the environment through difference; establishing a general analysis model based on time synchronization; judging whether the general analysis model converges; establishing an environment characteristic model and a load characteristic model of a research area based on the converged general analysis model; bringing the general analysis model based on time synchronization into the environment characteristic model and the load characteristic model to perform space synchronization, and obtaining the environment load factor space-time synchronous coupling analysis model. Compared with the prior art, the application has the advantages of high accuracy, high reliability, strong universality and the like.
Owner:TONGJI UNIV

Aviation equipment connection configuration design method based on FPS model

The invention provides an aviation equipment connection configuration design method based on an FPS model, and the method comprises the following steps: building a certain aviation equipment connection configuration design model based on the FPS model; analyzing user requirements to obtain required function elements, substituting the required function elements into the configuration library, and outputting a configuration sketch; mapping to a performance layer to obtain a required performance element, output connector performance and a design analysis expression; mapping to a structure layer to obtain a substructure and parameter description thereof; establishing a concept structure model; establishing a connection configuration design process scheme; and substituting parameter requirements, and establishing a configuration mathematical model. The method has the beneficial effects that reference is provided for materialization and refinement of the aviation equipment connection configuration design method, the design period of the aviation assembly connection configuration is shortened, the design efficiency and quality are improved, and the method has important significance on development and progress of aviation equipment.
Owner:AEROSPACE PRECISION PROD INC LTD

Trigger condition analysis method for expected function safety of automatic driving perception system

The invention discloses a trigger condition analysis method for expected function safety of an automatic driving perception system. The method comprises the following steps: analyzing an automatic driving expected function and a corresponding perception system; defining a perception system indicator based on the autonomous driving expectation function; analyzing the performance limitation of the sensing system based on the combination of the sensing system index and a preset performance limitation analysis keyword; identifying the whole vehicle level influence and harm caused by the performance limitation; based on the performance limitation and the whole vehicle level influence and harm, defining a sensing system limitation scene library; performing cause analysis based on the sensing system limited scene library, and exporting a trigger condition; and verifying the trigger condition through a simulation test. The technology provided by the invention provides powerful support for forward design analysis of expected function safety.
Owner:CHINA AUTOMOTIVE ENGINEERING RESEARCH INSTITUTE (TIANJIN) CO LTD +1

Method for calculating upper limit of impurity content of nuclear material in fusion device

The application discloses a method for calculating the upper limit of impurity content of nuclear materials of a fusion device, and is used for analyzing the impurity control requirement of materials serving in the nuclear environment of the fusion device. The method is characterized in that: under the service environment conditions and examination requirements of the specified nuclear materials, the main components and the possible impurity elements contained in the materials are simulated, and the control requirement of the impurity elements is determined according to the nuclear response calculation of various normalization indexes. The method can realize the rapid calculation of the upper limit of impurity content of the nuclear materials of the fusion device under the service conditions, and can be applied to the design analysis of the nuclear materials of the fusion device and the fusion device.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

An artificial intelligence-based software design scheme automatic evaluation method and system

The application relates to an artificial intelligence-based software design scheme automatic evaluation method and system, which automatically extracts function entities and architecture topologies in a design document through a multi-modal analysis technology to generate a structured design scheme atlas; performs standardized compliance checking based on an enterprise architecture benchmark library to identify technical specification deviation and component reuse defects; fuses a defect prediction model and a risk quantification mechanism to analyze component coupling degree and historical defect data to generate a risk atlas; combines constraint rules and a similar case library to deduce an executable architecture optimization path; finally, constructs a closed-loop decision chain of technical compliance, risk control and asset reuse to generate a quantitative evaluation report. The application solves the problems of traditional evaluation methods, such as dependence on manual work, low efficiency, non-uniform standards and decision disconnection, realizes full-process automatic evaluation from design analysis to improvement guidance, significantly improves evaluation efficiency and decision accuracy, and guides software architecture optimization decision.
Owner:BEIJING ZHIJIE YIYUN INFORMATION TECHNOLOGY CO LTD

Steel lining anchoring system buckling-restrained design analysis method and device

The application discloses a buckling-restrained design analysis method for a steel lining anchoring system, which comprises the following steps: obtaining a node force balance equation based on a steel lining plate constitutive relation and a bolt constitutive relation; obtaining node displacement data based on the node force balance equation, and obtaining strain value data based on the node displacement data; obtaining actual node force of the steel lining plate based on the strain value data and the steel lining plate constitutive relation, and obtaining actual node force of the bolt based on the node displacement data and the bolt constitutive relation; obtaining node force residual based on the node displacement data, the strain value data, the actual node force of the steel lining plate and the actual node force of the bolt; if the node force residual is greater than a threshold value, updating the node displacement data and the strain value data, and continuing to calculate the node force residual until the node force residual is less than the threshold value. The method realizes accurate calculation of a buckling critical load of the steel lining, and provides theoretical support for a containment structure design of a nuclear power plant.
Owner:CHINA NUCLEAR POWER ENGINEERING CO LTD

Scene-driven model-based system architecture balancing method and device

PendingCN121979492AImprove the efficiency of trade-offsReduce supervisor factorsSoftware designRequirement analysisEvaluation resultUser needs
The invention relates to the field of system architecture design, analysis and tradeoff, in particular to a scene-driven model-based system architecture tradeoff method and device. The method comprises the following steps: step 1, constructing a scene evaluation table; 2, establishing a system efficiency tree; 3, carrying out system architecture modeling based on the model; and 4, carrying out model-based system architecture multi-quality characteristic analysis, and identifying sensitive points and risk points. Modifying system architecture elements based on the sensitive points to generate a new architecture, and repeating the steps 3-4; and 5, performing quantitative evaluation and visual analysis on the alternative system architecture. According to the method, based on user requirements and case scenes, the interactive influence between field characteristics of the system and multi-quality characteristics of the system is considered, quantitative evaluation and visual analysis are combined, the confidence coefficient of system alternative architecture tradeoff is improved, the traditional influence on architecture tradeoff based on engineering experience, non-technical factors and the like is reduced, and the subjectivity of an evaluation result is reduced.
Owner:XIAN FLIGHT SELF CONTROL INST OF AVIC

A method for designing and analyzing a helicopter outrigger

The present application belongs to the field of helicopter structure strength design, and relates to a design analysis method of a helicopter overhanging equipment support. The method comprises the following steps: determining the positions of each interface of the helicopter overhanging equipment by analyzing the proportion of each direction component of the aerodynamic load and the inertial load under the severe load condition and the bearing capacity of the installation interface of the fuselage; designing the load transmission path and the initial main body transmission structure according to the positions of each interface, the aerodynamic load and the inertial load, and performing topology optimization on the initial main body transmission structure; and finally completing the design of the overhanging equipment support by performing detail size optimization according to the strength requirement and the dynamics requirement.
Owner:CHINA HELICOPTER RES & DEV INST