240 results about "Ansys software" patented technology

The invention discloses a method for analyzing fluid dynamics and structural mechanics of wind generator blades, which comprises the following steps: combining CFD and CAE methods, determining each parameter of an impeller model by adopting the momentum blade element theory, designing an entity model of the blade, establishing a three-dimensional model of a windmill blade, a hub and a peripheral wind site based on a Gambit software platform, meshing the model by adopting a partial structuring method, setting a proper boundary condition, calculating the performance of a finite element based on a Fluent software platform, extracting the blade torsion and calculating the blade power and the blade efficiency, establishing a blade structural model based on an ansys software platform and meshing the blade structural model, applying load and restraint condition to the blade structural model, analyzing the mode of the blade structure, performing equal torque treatment for pressure distribution acquired by the Fluent software platform, applying pressure surface load to the ansys software platform, calculating the structural mechanics characteristics of the wind generator blades, and extracting blade deformation and stress distribution characteristics.

The invention provides a fatigue life prediction method for a high-modulus asphalt mixture pavement. The method comprises the steps that structural temperature distribution, pavement material dynamic modulus and temperature axle load distribution of the high-modulus asphalt mixture pavement serve as basis parameters; a fatigue strain equation is fit according to an indirect tension fatigue test result; ANSYS software is adopted to construct a pavement structure finite element model, and maximum tension strain of a bottom layer at different axle load levels in different temperature regions is calculated; according to the Miner fatigue cumulative damage rule, fatigue cumulative damage results of a high-modulus asphalt mixture at different axle loads and different temperatures are calculated according to the formula: . The fatigue life prediction method for the high-modulus asphalt mixture pavement has the technical advantages that temperature gradients and axle load distribution of the asphalt mixture pavement are fully considered, an accurate prediction model is established, the process and law of fatigue attenuation of the asphalt mixture are accurately described, the application range is wide, and calculation results are reliable, so a more reliable method is provided for structural design of the asphalt pavement.

The invention relates to a method for performing structure analysis on a steel pylon by using ANSYS software, which is applied to static analysis and dynamic analysis of the steel pylon. The method comprises the steps as follows: firstly completing modeling of the steel pylon through a self-control program, and generating an APDL (ANSYS parametric design language) command stream file which can be executed by the ANSYS software; then starting the ANSYS software in the background, and utilizing the form of sending command stream to the ANSYS software to complete structure analysis on the steel pylon; and finally displaying the data result and the graphic result in an assigned position of the self-control program. According to the invention, with the combination of the self-control program and the ANSYS software, the shortages of higher use difficulty and poorer pertinence in structure analysis of the steel pylon by the ANSYS software are solved, so that the structure analysis of the steel pylon is more convenient and faster, and a favorable analysis platform for technicians is provided.

The invention relates to a method for designing a jointless track of a long and large bridge girder longitudinal butt plate type ballastless track for a high-speed railway. According to the method provided by the invention, ANSYS software is utilized to establish a latitude vertical space coupling statics model of the jointless track of the long and large bridge girder longitudinal butt plate type ballastless track for the high-speed railway, and ABAQUS software is utilized to establish a space coupling kinetic model. According to the method, the compositions of systems such as a steel rail, a fastener, track plates, a slurry placement layer, bed plates, a sliding layer, a consolidation mechanism, high-strength extruded sheets and L-shaped side check blocks, and structures such as supporting layers on a subgrade soil body and a road foundation and the action of high-speed vehicles are taken into full consideration, and friction factors of sliding layers on different bridge or friction plates, the longitudinal resistance of the fastener, the temperature difference of the bridge girder, the temperature difference of a ballastless track structure, the elastic modulus of the slurry placement layer and the like are calculated, so that the stress and deformation of the track and the bridge girder are obtained. The method provided by the invention is suitable for the design and computational check of the jointless track of the long and large bridge girder longitudinal butt plate type ballastless track for the high-speed railway, and providing service for the design calculation as well as conservation and maintenance of the high-speed railway.

The invention relates to a method for analyzing the residual life of a storage tank through ANSYS software. The method mainly comprises the following steps that (1) a computer supporting ANSYS is used, collected storage tank data are input to the computer in the form of a database or a text, a finite element model of the corroded storage tank is established through the ANSYS software, and corresponding boundary conditions and an external load are applied to the finite element model according to the actual stress condition of the storage tank; (2) regression processing is conducted on experimental data points through a fatigue crack propagation law Paris formula, and a corrosion fatigue rate equation under the corresponding conditions is obtained; (3) the critical invalid wall thickness when the storage tank loses efficacy is determined according to a predicted value of the corrosion rate; (4) according to the critical invalid wall thickness when the storage tank loses efficacy due to corrosion, a storage tank residual life prediction model is established, and the approximate analysis method is used for calculating the residual life of the storage tank under the condition of uniform corrosion.

The invention discloses a method for hoisting a steel safe bottom seal head at nuclear power station and a special-purpose sling tool thereof. The method comprises the following steps: using Ansys software for analyzing and calculating the force when the bottom seal head is hoisted, designing a hanger distribution position and a hoisting scheme, designing and making the special-purpose sling tool; performing a loading test by a crane; performing the loading test by the special-purpose sling tool; performing a simulation test with an empty hook; testing the hoisting; hoisting in a formal mode, reinforcing and installing. The special-purpose sling tool comprises a suspension cable distributor, a release fastener, a secondary distributor, a compacting wire rope and an adjustable pull bar in order from up to down. The hoisting method does not require a specially-manufactured hoisting beam, inner force generated during a hoisting resisting process by self rigidity of the steel safe bottom seal head can be fully used, the circle suspension cable distributor and the adjustable pull bar can ensure uniform bearing of each hoisting point, deformation during the hoisting process is reduced to minimum, and hoisting requirement of the large-scale equipment in a nuclear power station can be accorded. The suspension cable has the advantages of reasonable design, simple structure and convenient connection.

The invention discloses a method for dynamically simulating intermediate-frequency heat treatment process of longitudinal welded pipes. According to the method, the movement of welded pipes in practical production is replaced by the movement of induction coils, an ANSYS APDL language-based macro document library, and the macro document library comprises a control library, a parameter library, an environment library and a computation library, wherein the control library is used for controlling the execution sequences of macro documents in the parameter library; the parameter library comprises modeling parameters and load parameters when the coils are at different positions; the environment library is used for establishing geometric models, meshing, load application and solving types required by two physical environments: electromagnetic analysis and heat analysis; and the computation library is used for carrying out electromagnetic-thermal coupling computation on the induction heating process by adopting DO circulation and storing the solving result into a database. Compared with the prior art, the method is capable of dynamically simulating the intermediate-frequency heat treatment process of the longitudinal welded pipes, and the simulation is closer to the reality; through modifying the parameters, various production processes of the factories can be simulated; and the whole simulation process takes ANSYS software as a platform, so that the operation is automatic, the operation is simple and the factory technicians can grasp and use the method conveniently.

The invention provides a finite element analysis method for thermal-coupled vibration characteristics of an impeller structure. The technical scheme is that the finite element analysis method comprises the following steps: establishing a three-dimensional model of the impeller structure by utilizing a solidworks parameter modelling method; importing the three-dimensional model of the impeller structure into finite element analysis software ANSYS, setting the attributes, parameters, loads and constraints of materials according to the actual working conditions in an ANSYS software pre-processing module, and dividing finite element grids; calculating the first five orders of fixed frequencies of the impeller structure at different rotation speeds through an ANSYS software modal analysis module; calculating the first five orders of fixed frequencies of the impeller structure at different rotation speeds in high-temperature environment through considering the influences of a temperature field; comparing the fixed frequencies in above analysis to obtain the influences, caused by the temperature field, on the vibration characteristics of the impeller structure, so as to provide theoretical basis for the failure mechanism research of the impeller structure under the high-temperature environment.

The invention provides a simulation method for machining deformation of carbon-fiber-reinforced resin matrix composite. The method includes: a, inputting modeling parameters in ANSYS software to build a geometric model; b, meshing the geometric model built in step a by a solid 185 unit, building a finite element model, and limiting the finite element model; c, simulating an autoclave process, calculating a solidification deformation value of the composite, and extracting a stress and strain distribution cloud graph; d, simulating a composite machining process by a method of killing or activating element to obtain machining deformation of the machined composite; and e, calculating the machining deformation value of the machined composite. The method has the advantages that simulation of accurate deformation prediction for the machining deformation of the carbon-fiber-reinforced resin matrix composite is realized, and the practical problems in composites engineering application are solved. The method is simple to operate and convenient to use. The software platform ANSYS is used, so that the method is well compatible and is convenient for technicians to master and use.

The invention discloses a method for carrying out stress analysis on first-class nuclear reactors through using ANSYS software, belonging to the technical field of analysis and design methods for first-class nuclear reactors. The method comprises the following steps: firstly, after carrying out routine design according to a design specification, thus obtaining a design drawing; establishing a geometric model and a finite element model by using a simulation device in an ANSYS; carrying out analysis and calculation on all nuclear parts; extracting a stress analysis result; and carrying out strength assessment according to the specifications stipulated in subsections NB and NF of section III of ASME (American society of mechanical engineers), then obtaining a detailed design report. Compared with the prior art, the method disclosed by the invention summarizes and improves a method for carrying out analysis and design on first-class nuclear reactors through using ANSYS software; compared with an analytical method and a test method, by using the method disclosed by the invention, the design time is greatly shortened, the design expense is reduced, the analysis efficiency is greatly improved, and the analysis cost is reduced; and in the process of analysis, an entity is adopted for modeling a hexahedron unit, thereby improving the calculation accuracy.

The invention relates to a method for quickly designing mechanical products based on virtual instruments and reverse engineering. The method comprises the following steps of: acquiring the point cloud data through a prototype product model at first, obtaining a prototype product curved surface model through utilizing an imageware software according to the obtained point cloud data, utilizing CATIA software to form a prototype product solid model of the curved surface model, using a parametrization design to obtain a new product solid model, analyzing and computing the new model through utilizing ANSYS software so as to obtain a new product model which satisfies requirements, and finally, storing the model into a database and quickly forming through a quick forming machine. The method consists of a prototype product model data acquiring part, a data processing, analyzing and managing part with a computation and analysis software and a quick forming part. The data acquiring part is an optical measuring instrument, data measurement and acquisition can be realized through scanning, and the point cloud data of the model can be obtained.

The present invention discloses an experimental method for characterizing relaxation characteristics of a bolted joint structure. The method comprises: constructing a finite element model of a singlebolted joint test piece based on the obtained three-dimensional rough shape of the contact surface of the bolted joint structure; performing static strength analysis on the single bolted jointed testpiece by using ANSYS software, and drawing the deformation curve of the single bolted jointed test piece under load conditions; making a single bolted joint axial test piece and a tangential test piece to analyze the influence law of the axial external load and the outward shear load on the relaxation characteristics of the bolted joint structure; establishing an experiment platform, and through the cyclic load control software, applying a cyclic load with a certain frequency on the single-bolt test piece clamped on the fatigue testing machine; performing the modal test on the single bolted joint test piece by using the LMS vibration system at the same time interval; and extracting a clamp force signal output by a pressure sensor and a stiffness signal in the modal test, and fitting the curve for the clamp force signal and the stiffness signal for comparison. The method disclosed by the present invention provides technical support for the relaxation determination and refastening of thejoint bolts of the key precise complicated components.

The invention relates to a carburizing cylindrical gear parameterized simulation and analysis method and a CAE system. The simulation and analysis method comprises the following steps: firstly establishing a carburizing cylindrical gear parameterized single-gear profile curve and establishing homogeneous carburizing layers; finitely modeling a carburizing gear pair by utilizing finite element software; carrying out simulation and analysis on transient state meshing performance on the carburizing gear pair and carrying out static contact analysis on a gear pair at a worst loading position by means of the finite element software; and finally carrying out performance evaluation on the carburizing gear pair according to the analysis results, so as to provide basis form the follow-up structure optimization and carburizing process improvement of the carburizing gear. On the basis of the method, secondary development is carried out on ANSYS software so as to obtain the CAE system. According to the method, the gap that effective analysis cannot be carried out on the carburizing gears in the prior art is supplied, and the procedure of carrying homogeneous material processing on the carburizing gears in the traditional technology is replaced; and the parameterized simulation and analysis method is convenient to operate and accurate in analysis result, and can be used for correctly simulating and analyzing the actual conditions of the carburizing gears.

The invention relates to an amended gear pair meshing characteristic analysis method taking drum modification into consideration. In order to acquire basic parameters of a gear pair and drum modification parameters, gear teeth of the gear pair are divided into N independent even web gears in the direction of tooth width; the time-variant meshing stiffness of each web gear pair is calculated by adopting the gear pair meshing characteristic analysis method taking prolonging the meshing influence into consideration on the basis of the error of a gear profile of a drum modification gear pair; a meshing gear pair three-dimensional model comprising drum modification is established through three-dimensional drawing simulation software, the three-dimensional model is guided into an ANSYS software to create a three-dimensional finite element contact model, and time-variant meshing stiffness data in the whole meshing process of the gear are solved. The analysis method is simple in modelling process and low in calculated quantity, the requirement on a computer is low, and the calculation result is accurate and true.

The invention discloses a composite material electric pole and a structure design method thereof. The method comprises the following steps of: (1) designing the wall thickness of the electric pole, wherein the wall of the electric pole sequentially comprises an inner skin, a sandwich layer and an outer skin; (2) determining used raw materials, a proportion and a molding mode; (3) manufacturing a sample according to the requirement of electric power circuit engineering and finishing testing to acquire the elastic modulus and the Poisson's ratio performance parameters of the inner skin, the outer skin and the sandwich layer; determining the thicknesses and the laying modes of the inner skin, the outer skin and the sandwich layer; (4) constructing a solid model by utilizing finite element software ANSYS and applying a load; carrying out analog computation to acquire stress and deflection values of different working conditions and comparing with a design requirement; if the stress and the deflection values meet the design requirement, finishing designing; and if the stress and the deflection values do not meet the design requirement, returning to the step (3), repeating the steps (3) and (4) until the design requirement is met to finish designing. The electric pole is designed by utilizing the ANSYS software, the requirement on the safety coefficient of the structure is met, and meanwhile, the whole bending resistance of the electric pole is improved, which provides a beneficial reference for the application of the composite material in the power industry.

The invention relates to a finite element model building and updating method of sprag clutch wedge block surface stress. The building basis of the finite element model is that the wedge block is under the practical torsional load and wedge block lock state, the wedge, an inner ring and an outer ring are subjected to finite element meshing under the premise of ignoring the mutual effect of the inner and outer retainers and the spring on the wedge, then the finite element models of the wedge, the inner ring and the outer ring are built, and then an ANSYS software is adopted to judge the wedge block stress valve in the finite element model, if the valve meets the requirement, the building of the finite element model is reasonable, and if not, the wedge block geometry parameters namely the specific valve (design valve) should be revised according to the correction formula until the correction of the wedge block meets the finite element model. The final wedge block correction replaces the particular value of the wedge, the correction result improves the structure rigidity in the wedge block stress concentrated region, and the method can meet the requirements of practical torsional load, and further effectively improve the service life of the sprag clutch and save the practical experimentation cost.

The invention discloses a method for vibrating a power-generation analysis finite element by different shapes of cantilever beam piezoelectric vibrators. The method comprises the following steps: utilizing soliworks software to respectively establish geometric models of rectangular, trapezoidal and triangular cantilever beam piezoelectric vibrators of which the length, the thickness and the root width are all equal through approximate simplification; respectively leading the geometric models into ansys software and implementing the following operational steps: S1: setting and distributing material properties and cell types of all parts of piezoelectric vibrators; S2: setting meshing properties and carrying out the meshing by adopting a mapping mode; S3: setting boundary conditions and voltage coupling restrains and establishing a finite element model of the cantilever beam piezoelectric vibrators; S4: utilizing the ansys software to apply a fixed load to the cantilever piezoelectric vibrators, carrying out static analysis and recording simulation results; and finally, comparing and analyzing the simulation results of three shapes of piezoelectric vibrators.

The invention provides a simulation method for a plasma generator. The method comprises: Step S1, performing three-dimensional modeling on the plasma generator in ANSYS software; Step S2, performing grid division on an established model; Step S3, setting material and boundary conditions of the model; Step S4, loading a magnetohydrodynamic (MHD) module for the model; Step S5, initializing a flow field; Step S6, selecting a solver, a velocity field and pressure field coupling mode and a spatial discretization format; and Step S7, obtaining various field data of the plasma generator during operation period through simulation calculation. According to the method, various difficulties in physical process researches and experimental processes of an existing plasma generator are overcome, comprehensive and accurate modeling analysis is performed on an electric field, a magnetic field, a thermal force field and the flow field of the generator, an analytic method desiderated for the industrial application of the plasma generator is provided, and the method can become important means for developing the plasma generator.

The invention provides a soft-hard interbedded wall rock tunnel construction simulation method considering bedding action, comprising the steps of S1, acquiring related physical parameters of wall rock: processing tunnel wall rock to be simulated into a standard test piece according to Regulation for Testing of Physical and Mechanical Properties of Rock by using rock conventional mechanical property test, and acquiring related physical parameters of wall rock through uniaxial/triaxial compression test and shear test; S2, imparting a wall rock simulation unit to the mechanical parameters acquired by the tests of step S1, and carrying out simulation analysis by using self-contained elastic-plastic constructive model of ANSYS software, dp rules and contact pair effect. The simulation method provided herein enables the simulation for changes and influences generated by bedding stress field, displacement field and the like in the whole process of soft-hard interbedded wall rock tunnel excavation, the problem that nonlinear analytical results fail to converge in the simulation process is solved, simulation results may indicate that whether bed separation and the like occur after tunnel excavation, the simulation better meets the engineering actuality, and the simulation results may guide actual tunnel construction.

The invention discloses a finite element modeling method for wind turbine blades of a wind generating set. The finite element modeling method comprises the steps that a blade laying layer parameter table is created according to a blade design laying layer graph; adding the material parameters required by the blade into a material library; constructing a blade geometric model by adopting three-dimensional modeling software; importing the blade layer paving parameter table and the blade geometric model into HyperMesh software through a blade finite element modeling plug-in; performing blade geometric model initialization, blade curved surface segmentation, lamination parameter table processing, grid division and grid attribute definition by using a blade finite element modeling plug-in to create a finite element model; and exporting the finite element model into a cdb file identified by Ansys software. The method has the advantages of high efficiency, simplicity in operation and high error correction capability, and has important practical significance for quickly and accurately establishing the finite element model of the fan blade.

The invention discloses anANSYS-based multi-field coupling stress distribution simulation method for a high-temperature carbonization furnace and relates to the technical field of design analysis methods of high-temperature carbonization furnaces. The technical problem that the stress characteristics of different furnace chamber materials cannot be tested in the design stage of a high-temperaturecarbonization furnace in the prior art is solved. According to the adopted scheme, the method comprises the steps that establishing three-dimensional simulation model, respectively transmitting the fluid calculation domain and the structure calculation domain to a Blocking module of ICEM software and Mesh software to carry out mesh generation; setting in a FLUENT module of ANSYS software; transmitting data to ANSYS software; importing a temperature distribution result in an Imported Load option to obtain a temperature distribution result; carrying out simulation operation in the Solution option to obtain stress distribution characteristics of the muffle structure at different temperatures; under the same setting condition, judging the stress distribution state of the high-temperature carbonization furnace at different temperatures and airflow velocities by setting different working temperatures and airflow velocities to repeatedly carry out simulation calculation for multiple times, sothat the structural performance of the furnace chamber can be better predicted, and the basis for designing the muffle chamber structure and operation process parameters of the high-temperature carbonization furnace is provided.