226 results about "Topology optimization" patented technology

The invention relates to the technical field of electric power communication, in particular to an electric power communication resource topological optimization method and system based on a graph database. The specific implementation process comprises the following steps: constructing an electric power communication resource topological graph comprising communication exchange nodes, data transmission links and attribute information through a graph database; analyzing and quantifying the received business type into a routing constraint condition according to a business service level protocol; performing dynamic weighting calculation on each candidate communication path meeting the routing constraint condition, evaluating comprehensive performance indexes and outputting an optimal communication path; and converting the optimal communication path into a topology configuration instruction capable of guiding network equipment to carry out data deployment, and carrying out dynamic optimization on the power communication resource topology. According to the method, the service quality requirements of different services are quantified into dynamically adjusted routing constraints and weights, so that reasonable allocation of power communication resources and effective optimization of network topology are realized, and the working efficiency of a power communication resource network is improved.

An acoustic vibration coupling plane structure topological optimization method based on an energy finite element is characterized in that discretization processing and unit assembly of the energy finite element are carried out on an acoustic system by utilizing a unit independent grid method, an energy finite element model is constructed, and then the optimization of the acoustic performance of an acoustic vibration system is realized by combining the energy finite element model with the topological optimization method; according to the method, a unified analysis framework is provided for an acoustic vibration system, the dynamic change of a discontinuous interface of an energy density field in iterative optimization can be adapted, and a high-degree-of-freedom design space is provided; the calculation cost is reduced, the calculation efficiency is improved, and the accuracy of an analysis result is ensured.

The invention discloses a structural vibration reduction topological optimization design method based on anti-resonant frequency constraint. The method comprises the following steps: constructing a finite element model corresponding to structure parameters; obtaining an initial structure and an optimization column formula according to the finite element model; obtaining an objective function value through finite element analysis; obtaining an anti-resonance frequency correlation characteristic value through generalized asymmetric characteristic value analysis; and the design variables are updated in combination with optimization column constraints, and a topological optimization design configuration is obtained after convergence judgment. According to the method, explicit calculation and precise control of the dynamic compliance anti-resonant frequency are achieved, optimization and advanced convergence are avoided through anti-resonant frequency constraint, a clear vibration reduction topological configuration can be obtained under high-frequency excitation without additional mass, the vibration reduction performance and the static force bearing capacity of the structure are both considered, and the method is suitable for large-scale popularization and application. And the design requirements for light weight and high vibration attenuation of the structure in the fields of aerospace and the like are met.

The invention provides a high aspect ratio wing topological optimization method considering pneumatic-structure coupling. The method comprises the following steps: establishing a pneumatic-structure strong coupling topological optimization model; performing finite element analysis to obtain an original variable field of the high aspect ratio wing; generating a filtering variable field and a projection variable field; deformation displacement of each finite element unit is obtained based on a UMMI material interpolation model; establishing information transmission, structure displacement response, aerodynamic load transmission and aerodynamic load updating strategies under pneumatic-structure coupling, and analyzing and updating the aerodynamic load; according to the method, manufacturing constraints such as geometric nonlinearity, multi-material layout and wing rib orientation size are comprehensively considered, design variables in an original variable field are subjected to iterative optimization solution, a wing optimization configuration is obtained, the three core problems of calculation distortion, performance deviation and manufacturing difficulty in lightweight design of the high aspect ratio wing are successfully solved, and the method is suitable for the lightweight design of the high aspect ratio wing. And the comprehensive performance and economical efficiency of the aircraft are remarkably improved.

The embodiment of the invention discloses a gear pump shell topological optimization method and device based on an SIMP variable density method and a gear pump shell. The method comprises the steps that a three-dimensional model of the gear pump shell is established; performing statics analysis on the three-dimensional model to obtain stress and deformation distribution under different working conditions; taking the mass minimization of the shell as an objective function, taking stress and deformation distribution as constraint conditions, taking material distribution as a design variable, and adopting an SIMP variable density method to construct a topological optimization model; solving the topological optimization model to obtain optimized material distribution; and performing geometric reconstruction on the three-dimensional model based on the material distribution to obtain a reconstructed three-dimensional model. According to the scheme, material distribution is optimized through the SIMP variable density method, on the premise that the structural strength is guaranteed, the mass of the gear pump shell is greatly reduced, the stress distribution of the optimized shell is more uniform, and the structural stability and deformation resistance of the shell under the high-pressure working condition are remarkably improved.

The invention discloses a thermal metamaterial-based satellite component layout-deck structure integrated optimization design method, which belongs to the technical field of satellite thermal management, and comprises the following steps: carrying out geometric description on components, and carrying out interference calculation between the components; selecting a planar four-node rectangular unit discrete design domain, and representing a component temperature field as an interpolation relation of node temperature; designing an optimization target and constraint, converting the optimization target and constraint into a standard optimization column formula, and searching an optimal component layout scheme; the method comprises the following steps: carrying out topological optimization design on a satellite deck structure on the basis of a thermal metamaterial design idea, determining a thermal metamaterial function type and dividing a local deck design domain; discretizing each design unit, carrying out topological optimization design on the discretized design units, and searching a microstructure with the highest matching degree between the macroscopic equivalent heat conduction tensor and the theoretical heat conduction tensor of the central position of the design unit; and assembling the microstructure to obtain the deck structure. According to the invention, global thermal management and local thermal management of the satellite cabin can be realized.

The invention discloses a novel power system-oriented power distribution network topology optimization configuration method and system. The method comprises the steps of obtaining current power grid topology data of a target power distribution network and supply and demand state data of a period of time in the future; the power grid topological data comprises a global topological graph and a current topological structure; the supply and demand state data comprises power supply data and load data; performing iterative optimization on the topological structure of the target power distribution network by adopting an optimization algorithm based on a particle swarm to obtain a new topological structure; wherein in the iterative optimization process, a fitness function is constructed by taking minimization of power grid network loss and node voltage deviation as targets, a population is initialized according to a current topological structure, the fitness of particles is calculated according to the supply and demand state and the fitness function, and particle position updating is performed according to the global topological graph under radial constraints.

The invention discloses a distributed control system topological structure optimization method and system oriented to a gas turbine, and belongs to the technical field of gas turbine control. The method comprises the following steps: establishing a double-feature grid coding system fusing space coordinates and an adjacent distance matrix, and updating a shortest path between nodes by using a Floyd algorithm; designing a function-resource allocation scheme by combining engineering constraints such as node working temperature limitation and bus load uniformity; the position of a central intelligent node of the star topology structure is optimized by adopting a particle swarm algorithm, and the local wire harness length is shortened; the node connection sequence of the annular topological structure is optimized through a genetic algorithm, and the redundancy of key nodes is improved; and finally, a hybrid topological structure is formed. The example verifies that the total wire harness length of a certain type of gas turbine control system is reduced by 61.6% compared with that of a traditional centralized architecture, the signal transmission reliability is remarkably improved, the development and maintenance cost is reduced, and the method has important engineering application value.

The invention discloses a multi-objective topological optimization method for aircraft design, and belongs to the technical field of aerospace. The method comprises the steps that a three-dimensional geometric model is established, and an optimization area and an aerodynamic reservation area are delimited; describing a structural boundary by adopting a level set function; with rigidity maximization and inherent frequency maximization as targets, volume and manufacturing constraints are applied; utilizing a compromise planning method to construct a comprehensive objective function for minimizing the ideal point distance; transforming the constraint problem through an augmented Lagrangian method; calculating shape sensitivity and exporting a normal velocity field; updating a level set function to drive topology evolution; iterating until convergence, and generating a Pareto frontier solution set; and selecting an optimal scheme and reconstructing the optimal scheme into a three-dimensional model capable of being manufactured. On the premise of keeping the aerodynamic configuration, the problem of multi-target collaborative optimization is solved, the boundary is clear, the manufacturability is high, and the structural performance and the engineering applicability are remarkably improved.

The invention belongs to the field of material structure optimization, and particularly relates to an isogeometric topological optimization method based on dynamic response driving, which comprises the following steps of: (1) establishing a thin shell mid-plane geometric representation model based on a T spline and Bessel extraction technology; (2) establishing a frequency response-oriented isogeometric shell unit based on the Kirchhoff theory; (3) solving the aerodynamic response of the surface of the structure based on a high-order panel method of a T spline; (4) constructing a topology description model of the thin shell based on a Bessel unit; (5) establishing a structure dynamic flexibility minimum topological optimization model oriented to the dynamic response of the pneumatic thin shell; (6) dynamic flexibility minimization sensitivity analysis and derivation; and (7) updating optimization model design variables based on an optimal criterion method. According to the method provided by the invention, a pneumatic coupling thin shell dynamic isogeometric analysis framework is constructed, and the problems of poor geometric adaptability, difficulty in complex thin shell dynamic design, lack of pneumatic environment related to optimization and the like in an existing method are effectively solved.

The invention provides a design method, device and equipment for a machine tool supporting structural member and a medium, and relates to the technical field of data processing.The method comprises the steps that a finite element model of the machine tool supporting structural member is built, and a design area is defined in the finite element model; determining a weight value corresponding to the pose change information of the moving part in each operation condition; and based on the weight value and a design response index determined by a design requirement index of the supporting structural member, an objective function and a constraint condition, executing optimization design of the design region in the finite element model, and determining a design result of the supporting structural member. According to the method, components for supporting structural parts and component combination parts are included in a unified design area, the weights of a machine tool under multiple operation working conditions are considered, collaborative topological optimization is carried out, the defect that rigidity of the structural parts is not matched due to separate design is overcome, rigidity matching of the structural parts after optimization design is guaranteed, and the design efficiency is improved. And the design precision and performance of the machine tool supporting structural member are improved.

The invention discloses a heterogeneous Internet of Things topology key node identification method in combination with a mutation theory, and belongs to the field of computers and information, and the method comprises the steps: firstly constructing an initial topology of a heterogeneous Internet of Things, generating a topology set through random disturbance, and calculating performance indexes such as robustness, redundancy, communication efficiency and a global clustering coefficient; then normalizing the indexes by using a mutation series method, evaluating the correlation between the indexes based on a Pearson's correlation coefficient, and obtaining a network performance mutation value through layer-by-layer fusion; simulating a deliberate attack process, establishing a corresponding relationship between a node deletion sequence and performance evolution, and fitting to obtain a performance evolution function; and finally, establishing a cuspidal point mutation model, and identifying critical nodes causing network performance mutation by analyzing the equilibrium state, the singular set and the bifurcation set of the model, thereby breaking through the limitation of traditional static network indexes, being capable of accurately capturing the mutation behavior of the network performance, being high in objectivity, and providing a theoretical basis for topological optimization and fault-tolerant design of the Internet of Things.

The invention discloses a power distribution network-microgrid topological structure optimization method and device, and relates to the technical field of power grids, and the method comprises the steps: setting a composite constraint condition, calling target topological structure data, and carrying out the multi-target collaborative optimization, and obtaining topological structure optimization parameters; performing grid-connected and off-grid switching analysis, and constructing transient stability control data; and controlling the power distribution network-microgrid according to the topological structure optimization parameters in combination with transient stability control data to obtain operation stability parameters, performing a power grid simulation test to verify the topological structure optimization parameters, and performing iterative correction on the topological structure optimization parameters according to a verification result until a preset index is met. And generating a topological structure optimization scheme and performing control execution. The technical problem that high-reliability and multi-target collaborative optimization cannot be carried out on the power distribution network-microgrid topological structure in the prior art is solved, and the technical effects of obtaining a topological structure optimization scheme capable of dynamically adapting to operation condition changes and realizing reliable execution control are achieved.

The invention relates to the technical field of permanent magnet motor rotor structure optimization, and particularly discloses a permanent magnet motor rotor structure topological optimization method considering the nonlinear saturation characteristic of a ferromagnetic material, and the method comprises the steps: S101, carrying out the initial parameterization and meshing optimization of a design region variable; s102, determining the performance of the actual operation condition point of the permanent magnet motor load; s103, carrying out finite element analysis on an electromagnetic field and a mechanical field of the permanent magnet motor; and S104, carrying out iterative analysis on the magnetic conductivity of the nonlinear saturated ferromagnetic material, judging whether a result is converged or not, if the result is converged, entering the step S105, otherwise, returning to the step S103, and the like. The weight of the rotor of the permanent magnet motor is effectively reduced through a lightweight design result, the lightweight design of the rotor of the permanent magnet motor is realized while the mechanical and electromagnetic properties are ensured, and a design reference for actual production and manufacturing is provided for the weight reduction design of a rotor region of a permanent magnet region.

The invention belongs to the technical field of energy storage string control, and discloses an active reconstruction control system for energy storage string dynamic equalization. The system comprises a battery unit health dynamic prediction module, a multi-target topological optimization algorithm module, a multi-target decision security verification module, a preventive management strategy planning module and an online calibration learning module, and calculates and predicts the health state of each battery unit in real time based on a preprocessed feature data set to obtain a battery health prediction report. The method comprises the steps of calculating an optimal string connection topology scheme based on a battery health prediction report, obtaining a multi-target optimization result report, obtaining a safety verification instruction report, formulating preventive maintenance suggestions based on the battery health prediction report, obtaining a long-term strategy suggestion report, and generating a model calibration report. The method has the remarkable advantages of being high in balance durability, high in multi-performance compatibility and good in battery model self-adaptive effect.

The invention provides a pollutant sampling point space topology optimization method based on CFD simulation, and belongs to the technical field of analogue simulation, and the method comprises the following steps: S1, collecting and preprocessing initial data; s2, establishing a model; s3, constructing a target function; s4, optimizing an algorithm and constructing a fitness function: optimizing the target function by using a pigeon inspired algorithm, and obtaining the fitness function on the basis of the target function; and S5, result verification. According to the CFD simulation-based pollutant sampling point space topology optimization method provided by the invention, the number of redundant sampling points is reduced by using the pigeon inspired algorithm, meanwhile, the monitoring coverage of a high-concentration area is maximized, and the sudden pollutant diffusion condition is dealt with by calculating the fitness function, so that the safety of the pollutant sampling point space topology optimization method is improved. Therefore, the response speed and effectiveness of the detection system are improved; and the optimal balance among the monitoring precision, the coverage rate and the cost is realized.

The invention discloses an SOFC bipolar plate multi-target topological optimization and comprehensive evaluation method, and belongs to the technical field of solid oxide fuel cells. The method comprises the following steps: firstly, inputting initial design data, defining a design domain and an initial design variable, and establishing a finite element discretization model of a bipolar plate structure; then, according to the performance requirements of the SOFC bipolar plate, analyzing the heat transfer performance and the flowing performance respectively, and ensuring that the bipolar plate has good heat conductivity and gas flowing characteristics; constructing a multi-objective optimization function based on an analysis result, and reasonably weighting optimization objectives of heat transfer and flowing properties; and iteratively updating the design variables by using an optimization algorithm to realize optimization of the geometric structure and material distribution of the bipolar plate. After each round of iteration, judging whether a termination condition is met, and if not, continuing optimization; and if yes, outputting a final optimization result. According to the method, the heat transfer and flowing properties of the SOFC bipolar plate can be remarkably improved, the multi-objective optimization requirement is met, and the method has high engineering practical value.

The invention relates to the technical field of data processing, in particular to an elastic frame optimization design method and system based on the finite element theory, and the method comprises the steps: constructing a nonlinear finite element model of an elastic frame, and for each node, determining the sealing reliability of the node based on the normal contact stress value, fluid pressure value and displacement vector of the node; for each unit, determining a fluid permeation trend factor of the unit based on the sealing reliability of the nodes in the unit, remodeling a material relative density iterative updating formula of the optimization criterion method by using the fluid permeation trend factor, updating the material relative density of each unit, generating an optimal topological configuration, and carrying out the optimal topological configuration; therefore, the optimal design of the elastic frame is completed. According to the method, the problem of high-pressure leakage caused by neglecting microscopic sealing in traditional topological optimization is solved, and synchronous optimization of the structural rigidity and the sealing performance under the ultrahigh-pressure working condition is achieved.

The invention relates to the field of machine tool stand column optimization, and provides a multi-target topological optimization method, device, equipment and medium for a machine tool stand column structure, and the method comprises the steps: carrying out the internal filling processing and target feature deletion processing of a three-dimensional structure of a machine tool stand column, and obtaining a target three-dimensional model; analyzing the target three-dimensional model to obtain column guide rail deformation information and column multi-order frequency; determining an optimization strategy based on the optimization constraint and the optimization target; the optimization constraint comprises upright post mass, upright post guide rail deformation information and upright post multi-order frequency; the optimization target is the total flexibility of the vertical column under multiple working conditions; based on the optimization strategy, reconstruction optimization is carried out on rib plates in the stand column at the positions of the bearing rib plates; the position of the bearing rib plate is determined based on an optimization area in the stand column. According to the method, through multi-target collaborative optimization of the machine tool stand column, the adaptability of the optimized stand column in actual use is improved.

The invention relates to a power grid topology optimization method and device fusing load edge weight characteristics and a storage medium, and the method comprises the steps: S1, building a dynamic graph model according to a power grid structure, and initializing the dynamic edge weight of the dynamic graph model; s2, associating the periodic change of the node load of the power grid with the real-time load rate of the line through a space-time coupling model, and calculating to obtain a first node feature of the dynamic graph model for updating the dynamic load rate; s3, based on the dynamic graph model, hub nodes are determined according to the number of the shortest electrical paths between the power grid nodes, and electrical betweenness distribution of a power grid key transmission corridor is generated according to the dynamic load rate; s4, calculating the topological potential energy of the nodes based on the electrical betweenness distribution and the electrical distance of the power grid nodes, and screening high-potential-energy nodes as fragile nodes; and S5, carrying out power grid topology optimization on the fragile nodes. Compared with the prior art, the method improves the recognition accuracy of the fragile nodes through capturing the operation state of the power grid in real time.

The invention provides a geometric nonlinear multi-material topological optimization method based on a hyperelastic material model, and the method comprises the steps: building a topological optimization framework which takes the minimum end point type flexibility of a structure as an optimization target and takes the ratio of the overall mass of the structure to a single material body as an optimization constraint condition; according to the method, a projection variable field of a to-be-optimized engineering structure is obtained based on finite element analysis, a Neo-Yeoh hyperelastic material model is designed and established, in the topological optimization process of a structural material, screening of units with different projection variable values is achieved based on a set of original grids, and the optimal structure material is obtained. According to the geometric nonlinear topological optimization method based on the Neo-Hookean hyperelastic material, the entity unit is endowed with the Neo-Hookean hyperelastic material, and the hole or the low-density unit is endowed with the second-order Yeoh hyperelastic material, so that the problem of numerical instability caused by distortion of the low-density unit in geometric nonlinear topological optimization is solved, the designed model can be solved by utilizing a traditional commercial solver, and the universality is high.

The invention discloses a blade structure generation method based on bearing capacity flow topology optimization, and relates to the technical field of wind power generation equipment. The method comprises the following steps: establishing a three-dimensional finite element reference model of a wind turbine blade, and identifying and intercepting a local design domain containing a web-beam cap connection area from the model; finite element modal analysis is carried out on the blade or the segment of the blade, and one or more vibration node lines are extracted from the vibration mode of the blade or the segment of the blade; in the local design domain, establishing and solving a local topological optimization mathematical model which takes minimization of material interface peak stress as an optimization target and takes a dynamic geometric constraint which requires optimization and generated material distribution to follow a vibration node line in space as a core constraint condition; and generating a geometric model of the blade connection structure according to an optimization solution result. According to the method, the static reliability and the dynamic anti-fatigue performance of the key connection area of the blade can be prospectively and integrally improved.

The application relates to a structure lightweight design method based on a modified equivalent static load method, which comprises the following steps: step 1, establishing a finite element model of an initial structure to be optimized, and calculating linear equivalent static loads; step 2, calculating modulus proportionality coefficients of a plastic deformation stage of the structure to be optimized; step 3, modifying the equivalent static loads of the structure according to the calculated modulus proportionality coefficients; and step 4, carrying out nonlinear topology optimization according to the modified equivalent static loads to obtain an energy-absorbing point lattice cell configuration, and realizing structure lightweight design. The application is based on a material and geometric nonlinear numerical modified equivalent static load method, the equivalent static load method is modified through modulus proportionality coefficients and strain matrix correction coefficients, nonlinear topology optimization of the structure is realized, a three-dimensional model of the point lattice cell configuration is reconstructed according to an optimization result, a geometric parameterized model of the energy-absorbing point lattice cell configuration is obtained, and the model is used for lightweight design of the point lattice structure under a compression load working condition.

The application provides a continuous fiber reinforced composite material additive manufacturing stiffened structure impact resistance design method, B-spline parameterization characterization is performed on a macroscopic topological distribution pseudo-density field and a microscopic fiber orientation fiber direction field, and B-spline control parameters are used as optimization design variables; impact resistance topology optimization based on an equivalent static load method is adopted, dynamic nonlinear analysis is performed through external circulation, and the stiffened topology and the fiber direction are cooperatively optimized under the equivalent static load through internal circulation, so that the stiffened structure topology distribution and the fiber direction distribution are obtained; then, the B-spline parameter field is mapped to a physical space reconstruction grid, and the topological and fiber direction representation of the physical space is obtained; finally, a continuous path planning algorithm based on a vector field is used to generate a one-stroke continuous printing path. The application solves the problem that the existing method is difficult to consider dynamic impact response modeling, fiber path continuity control and additive manufacturing process constraints, and cooperatively improves the impact resistance performance and manufacturability.

This application discloses a vehicle body topology iteration method, apparatus, electronic device, and storage medium, relating to the field of vehicle design technology. The method includes: within a designable space, fabricating an inner wall shell and an outer wall shell based on the original surface of the vehicle body and the spatial boundary, respectively, and creating a partition between them to form a topological space filled with a plate-shell structure; then performing topology optimization analysis on the plate-shell topological space to obtain the topological result of material distribution; finally, iteratively evaluating and adjusting the topological result according to preset evaluation dimensions until a qualified topological result is obtained. This application can solve the problems in related technologies such as large differences between solid topology and thin-walled beam structures of the vehicle body, poor engineering conversion ability, and the lack of a systematic iteration mechanism leading to unreasonable material distribution and unclear engineering paths in the topology results. It can improve the matching degree between the topology results and the vehicle body engineering structure, enhance engineering practicality, and achieve a positive systematic optimal solution design for vehicle body performance.

The invention relates to a structural topology optimization design method under the action of a periodic aerodynamic load, and belongs to the technical field of manufacturing. According to the method, a whole set of analysis design process is formed for structure topological optimization under the action of periodic aerodynamic loads, the aerodynamic load characteristics of the structure under different aerodynamic inflow angles are analyzed in combination with the basic theory of aerodynamics, and the periodic load characteristics of the structure are extracted; a multi-working-condition mode is used for representing an aerodynamic load in a period, the maximum value of the load in the period is used as a first load working condition, a bisection method is adopted for newly adding an inflow angle, and a working condition encryption criterion is formed; taking the minimum total flexibility of the structure as an optimization target, and adopting a level set topological optimization method to carry out structure topological optimization design under multiple working conditions; randomly selecting a plurality of pneumatic inflow angles, carrying out loading analysis on a topological optimization result, extracting the stress strain of a topological structure unit, and calculating the total flexibility of the topological structure; and compared with the total flexibility measurement of the topological structure in the previous step, judging whether the flexibility change quantity is smaller than a set convergence threshold value, if so, not needing to further encrypt the working condition, and if not, continuing to encrypt the working condition and carrying out the topological optimization design of the structure under multiple working conditions until the total flexibility measurement of the topological optimization structure is converged. According to the method, a complete and clear design process is formed for realizing the topological optimization design of the structure under the action of the periodic aerodynamic load, and model design of engineering designers is facilitated.

The application discloses a time-varying reliability topology optimization method for a continuum structure, and comprises the following steps: constructing a time-varying random parameter initial model of the continuum structure based on continuum structure information; constructing a time-varying reliability topology optimization mathematical model according to the time-varying random parameter initial model; obtaining displacement, velocity and acceleration responses of the continuum structure based on the time-varying reliability topology optimization mathematical model; obtaining sensitivity information about random variables according to the displacement, velocity and acceleration responses; obtaining a global time-varying reliability index based on the sensitivity information; establishing a derivative relationship between an objective function and constraint conditions and design variables according to the global time-varying reliability index and an adjoint vector, and obtaining gradient information according to the derivative relationship; and optimizing the continuum structure according to the gradient information. The application realizes high-precision and high-efficiency reliability design of the continuum structure under a dynamic uncertain environment.

This invention relates to the field of optical fiber communication technology and discloses a hollow-core optical fiber topology optimization method based on mode analysis and moving asymptote method. This method constructs a hollow-core optical fiber topology optimization design system, which includes a geometric modeling module, a material parameterization module, a mode analysis solution module, an adjoint sensitivity module, an MMA update module, a continuous scheduling module, and a geometric shaping and verification module. By employing a hyperbolic tangent projection function, a grayscale imaginary part penalty term, and a multi-stage continuous strategy, grayscale suppression and binarization are performed to avoid interface blurring caused by grayscale materials and significant performance degradation after shaping. Ultimately, this ensures the consistency between the design results and actual manufacturing performance. Through the collaboration and continuous scheduling of each module, stable convergence of the optimization process and automatic generation of manufacturable structures are achieved. Therefore, this invention method possesses advantages such as a wide design space, strong structural manufacturability, stable optimization process, and improved performance.

The application provides a topology optimization method and device for embedded chip cooling. The application comprises the following steps: obtaining multi-physical field distribution data and material distribution factors, and normalizing to construct a condition characteristic vector; inputting the characteristic vector into a pre-trained generative model, and obtaining a latent variable characteristic increment through low-dimensional latent space single-step denoising reasoning; obtaining a material distribution factor differential evolution amount through a variational autoencoder decoder reconstruction; superimposing the updated material distribution factor and topology configuration, and performing cyclic iteration calculation until convergence. The scheme improves the topology evolution efficiency and multi-physical field adaptability, and optimizes the iteration convergence speed.

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