50results about How to "Guaranteed Simulation Accuracy" patented technology

The invention relates to the technical field of performance simulation analysis, in particular to a performance simulation method of a power module. The method comprises the following steps: acquiring initial physical characteristic data and initial electrical characteristic data of a power module; the initial physical characteristic data and the initial electrical characteristic data are preprocessed and simulated, and physical field distribution characteristics in the power module are obtained; performing multi-physical field simulation analysis on the power module based on physical field distribution characteristics in the power module by using an adaptive grid generation algorithm and sparse matrix solution to obtain simulation result data; performing parameter adjustment and optimization on a simulation model of the power module according to the simulation result data to generate optimized simulation model parameter data; and according to the optimization simulation model parameter data, performing simplification processing on the design of the power module to establish a simplified model. Through multi-stage simulation and optimization, the performance and the control precision of the power module can be remarkably improved, and the stability and the efficiency of the system are improved.

The invention discloses a flood high-precision simulation method, system and device and a storage medium, and the method comprises the steps: obtaining actual measurement rainfall data and high-resolution topographic data of a target region, and determining a first hydrodynamic parameter of the target region according to the high-resolution topographic data; performing coarse-scale grid flood simulation on the target area by using the hydrodynamic model according to the first hydrodynamic parameter by taking the actually measured rainfall data as a boundary condition to obtain low-resolution flood simulation data of the target area; and inputting the low-resolution flood simulation data and the high-resolution topographic data into a pre-trained super-resolution generative adversarial network to obtain high-resolution flood simulation data of the target area. The flood simulation efficiency is improved while the simulation precision is guaranteed, and the method can be widely applied to the technical field of artificial intelligence.

The invention discloses a design optimization method for an oscillating water column wave energy device, and belongs to the technical field of ocean wave energy utilization, and the method comprises the following specific steps: S1, determining modeling parameters of a to-be-optimized device, and carrying out the parametric modeling of the wave energy device, so as to obtain the parametric modeling of the wave energy device; s2, selecting an air chamber width in the modeling parameters as a target optimization parameter, and setting other modeling parameters as constants, S3, inputting parameterized modeling in fluid mechanics software, calculating an air pressure value P1 (t) and a gas flow velocity value V (t) of the corresponding wave energy device, and forming a discrete point group; s4, fitting the discrete point group, and constructing an agent model; and S5, carrying out final optimization design by using the proxy model. By adopting the method, a multi-parameter and multi-target optimization scene can be met, and a new method is provided for design optimization of a wave energy device.

The invention relates to the technical field of electromagnetic simulation, and discloses an optical storage system fine-grained decoupling simulation solving method, system and device and a medium. According to the method, electromagnetic transient simulation modeling is carried out on a plurality of elements in an optical storage system, and an electromagnetic transient simulation model of the optical storage system is constructed; according to the method, an electromagnetic transient simulation model of the optical storage system is layered, fine-grained decoupling network division is carried out after layering, and multi-thread parallel simulation solving is carried out on the electromagnetic transient simulation decoupling model of the optical storage system based on a multi-thread CPU, so that flexible network division is realized, the calculated amount of the large-scale optical storage system is reduced, and the calculation efficiency of the large-scale optical storage system is improved. And by establishing a conflict-free parallel simulation scheme and a simulation process of the large-scale optical storage system, the simulation efficiency is improved on the premise of ensuring the simulation precision, and the method is suitable for solving the simulated large-scale optical storage system.

The invention relates to the technical field of tire simulation design, in particular to a tire force transmissibility finite element simulation method and system and a program product. According to the method, an axial symmetry finite element model comprising a tire, a rim, internal air and an additional deformable object is established, material attributes and contact pairs are defined, and a three-dimensional tire model is generated in combination with inflation simulation. An air unit with a displacement freedom degree and a self-adaptive grid division technology are adopted. The method comprises the following steps: simulating the embedding, inflating and loading processes of a tire under different working conditions by dynamically switching a contact pair relationship, performing steady-state dynamics analysis on the force transmissibility of the tire, and calculating an acceleration frequency response function and a force transmissibility curve of a tread and a rim center. According to the method, the analysis efficiency is greatly improved, the simulation time is shortened by 80%, meanwhile, a high-precision simulation result is kept, and the method is suitable for force transmissibility evaluation of tires with multiple air pressures and multiple specifications and has wide application value.

The invention discloses an environmental climate bionic culture cabin which comprises a cabin body, a fungus culture area arranged in the cabin body and an air conditioning module for controlling the air environment of the fungus culture area. The fungus culture area comprises a culture frame and a culture medium; the air conditioning module is used for simulating an air environment of a fungus origin; the air environment comprises air pressure, temperature, humidity and gas concentration; the air conditioning module is controlled by the central control system; the air conditioning module comprises an air pressure adjusting module, a temperature adjusting module, a humidity adjusting module and a gas concentration adjusting module. The invention aims to accurately simulate the natural environment of the origin of rare fungi through an advanced sensing technology and a real-time data transmission system. Particularly, under the extreme weather condition, the system adopts a multi-stage vacuum pump and a PID control algorithm to quickly adjust the air pressure, temperature lag compensation is achieved through a predictive control algorithm, and it is ensured that temperature change and air pressure change are synchronous.

The invention relates to a reversible hydropower station rapid operation simulation method considering unit vibration area constraints, which comprises the following steps: S1, according to the operation condition of a reversible hydropower station, considering constraint conditions of output, water head, flow and reservoir capacity, and taking maximization of the total output of the power station as a target function, establishing an operation simulation model of the reversible hydropower station; s2, based on a unit aggregation and integer variable linear relaxation method, linearizing a vibration area operation constraint part in the operation simulation model, and simplifying the model into a linear programming model; and S3, according to the upstream runoff data and the operation parameters of the reversible hydropower station, solving the operation simulation model to obtain an operation simulation result. According to the method, the equivalent variable and the constraint approximate original mixed integer constraint are introduced, solving is carried out in a linear programming mode, the solving speed is improved while the simulation precision is guaranteed, the operation flexibility of the hydropower station is better considered, the energy utilization efficiency is improved, and the operation cost is reduced.

The invention discloses a selective laser melting simulation method simultaneously considering molten pool and microstructure evolution, which mainly comprises establishment and calculation methods of powder laying and a powder melting and solidification process model, and comprises the following specific steps: setting the geometric dimension and the number of internal crystal grains of a substrate to generate a polycrystalline substrate; establishing a discrete element model, simulating a roll shaft powder spreading process, and obtaining particle information; introducing a sequence parameter, constructing a free energy density functional, and establishing a heat-flow-microstructure strong coupling phase field model; constructing a powder bed geometric model, distributing grain orientation, and dividing grids for the powder bed geometric structure; setting material attributes and boundary conditions, and solving the phase field model by a finite element method; and carrying out visualization processing on a calculation result to obtain a molten pool and a microstructure morphology. Evolution behaviors of the molten pool and the microstructure in the selective laser melting process can be simulated at the same time, alternate simulation and data transmission of the powder laying process and the laser scanning process are achieved, and therefore actual machining production is guided, and technological parameters are optimized.

The invention provides an efficient numerical method for simulating inter-basin flow of a near space aircraft, which sequentially comprises the following steps of: generating a physical space grid and a speed space grid according to geometric shape parameters and incoming flow parameters of the aircraft, setting a flow field variable at an initial moment, calculating interface flux, and performing implicit solution on a macroscopic adjoint equation, so as to simulate the inter-basin flow of the near space aircraft. The method comprises the following steps: obtaining a pre-estimated macroscopic quantity, carrying out implicit solution on a Boltzmann equation to obtain a distribution function of a next iteration step, and updating a flow field variable by using the distribution function to realize flow field iterative calculation. According to the method, the Boltzmann equation and the corresponding macroscopic control equation are solved in a coupling implicit mode, and the means of multi-scale macroscopic flux is constructed, so that the simulation efficiency of the cross-basin flow problem is improved while the simulation precision is kept.

The embodiment of the invention discloses a radar target echo signal generation method. The method comprises the following steps: loading and analyzing an XML (Extensible Markup Language) file for describing a radar echo simulation scene to obtain an analysis result comprising simulation scene duration of the radar echo simulation scene, parameters of a plurality of targets and parameters of a radar; according to the pulse repetition period PRI of the radar, segmenting the duration of the simulation scene to obtain a plurality of simulation slices; based on the analysis result, executing a first simulation calculation operation for each simulation slice by using a multi-core parallel thread of a graphics processing unit (GPU); traversing a plurality of simulation slices by taking each PRI as a simulation step length; based on the first simulation calculation operation result, second simulation calculation operation is executed in parallel, echo signals of the multiple targets are obtained, superposition processing is carried out, and radar target echo signals are obtained. According to the method, the generation speed of the radar echo signal can be greatly improved, and the requirements of real-time simulation and high-performance calculation are met.

The invention discloses a pipeline sediment erosion and deposition numerical simulation method and system based on a cellular automaton, and the method comprises the steps: (1) constructing a one-dimensional cellular erosion and deposition scene of a pipeline, and setting the cellular size, neighborhood relation and state of the pipeline, and the initial conditions of the quality of particulate matters in an aqueous phase and a sedimentary phase; (2) calculating the net settling volume of the cells in the vertical direction, and updating the cellular sedimentary facies particulate matter mass and deposition thickness at the next moment according to a sedimentary facies particulate matter updating rule; (3) calculating the water-phase transport quantity of the cells in the horizontal direction, and updating the mass and concentration of the water-phase particulate matters of the cells at the next moment according to a water-phase particulate matter updating rule; and (4) calculating vertical settlement and horizontal transportation of the circulating pipeline cell in combination with the updated pipeline cell state, so as to obtain the erosion and deposition change process of the sediment in the pipeline. According to the pipeline sediment erosion and deposition change discrete calculation form, the migration and transformation process of the sediment in the pipeline can be accurately simulated, and technical support is provided for pipe network sediment erosion and deposition simulation.

The invention discloses a sub-grid method and system based on electromagnetic thermal coupling, and the method comprises the steps: introducing a time domain finite difference sub-grid algorithm in the field of an electromagnetic algorithm into a multi-physical field, and delimiting a sub-grid region based on a simulation model; calculating an electric field value in the coarse grid, and updating the electric field value of the coarse grid at the grid interface; introducing the electric field value of the coarse grid into the sub-grid, and carrying out updating calculation on the electromagnetic field value in the sub-grid; an electromagnetic loss equation is used as a heat source, a thermal field is updated and calculated, and a coarse grid thermal field value at the interface is corrected; according to the corresponding linear interpolation, linking the coarse grid thermal field value into the sub-grid; calculating the current conductivity value of the corresponding dielectric material according to the current temperature of each point in the current space, and updating the current conductivity value into the electromagnetic field parameters; and repeating the above steps until the set simulation time is satisfied, and finally obtaining the electromagnetic field distribution and the thermal field distribution when the simulation is finished, and the instantaneous change of the electromagnetic field and the temperature field of each point.

The invention relates to a sea surface ship target SAR image rapid simulation method and device and electronic equipment. The method comprises the steps that a geometric model of a ship target and model parameters corresponding to the geometric model are acquired; constructing a geometric scene of the ship target according to the model parameters of the ship target geometric model; performing echo simulation in the geometric scene by using the incident excitation source, and calculating to obtain a transfer function of the naval vessel target; a linear frequency modulation signal frequency spectrum is obtained, and SAR frequency domain echoes of the naval vessel target are obtained in combination with the transfer function; performing inverse Fourier transform on the SAR frequency domain echo to obtain an SAR time domain echo; and processing the SAR time domain echo by adopting a distance-Doppler algorithm to obtain an SAR image of the naval vessel target. According to the method, by introducing the system transfer function, the situation that a large amount of time is spent for sampling is effectively avoided, the calculation efficiency is improved, and the simulation efficiency of the SAR image method is remarkably improved on the premise that the simulation precision is guaranteed.

The present invention relates to the technical field of hydroelectric units, and is an ADPSS-based turbine isolated grid control parameter verification device and a method of use, including an ADPSS simulation platform simulating and outputting a grid frequency signal, and receiving a power signal output by a hydroelectric unit speed governor simulation platform for iterative calculation; the hydroelectric unit speed governor simulation platform combines the grid frequency signal simulation to determine the guide vane opening signal, and converts the guide vane opening signal into a power signal; a transmission device builds a communication link between the ADPSS simulation platform and the hydroelectric unit speed governor simulation platform. The present invention improves the simulation speed and authenticity of the hydroelectric unit speed governor in an isolated grid mode through the heterogeneous parallelization of an FPGA module, a physical interface box, and a turbine speed governor simulation platform, and solves the problem that when the current turbine isolated grid control parameter setting uses a frequency step disturbance, only a step amount of a given step length can be used, and there is no effective interaction between the turbine and the grid.

This invention discloses a method, apparatus, medium, and product for calculating bonding interactions in molecules. The method includes: allocating bonding tasks using a three-dimensional interconnected computing architecture, and constructing a bonding atom set and a bonding task index table matching the allocated bonding tasks within each computing module. This ensures that identical atoms do not need to be repeatedly stored when the computing module executes all bonding tasks, reducing the storage overhead of atomic information; dynamically acquiring and filling atomic information from the local machine or other computing modules into the corresponding storage locations of the bonding atom set, extracting atomic information according to the index table, calculating bonding components in parallel, and accumulating the bonding components of identical atoms to obtain the resultant bonding force; and updating the resultant bonding force and atomic information through inter-module interaction, and re-storing the atomic information according to the updated spatial arrangement. This reduces the amount of data transmission between modules while ensuring the accuracy of molecular bonding interaction simulation, thereby improving the stability and efficiency of the overall molecular dynamics simulation.

The joint modeling and simulation method and system for marine engineering installation operations belong to the field of ship and marine engineering technology, and in particular to the joint modeling and simulation of marine engineering installation operations. The method solves the problems of low simulation efficiency, failure to meet the real-time requirements of engineering exercises, and difficulty in reusing simulation models in the existing modeling and simulation technologies for marine engineering equipment installation operations, which leads to high time costs for repeated development. The method comprises the following steps: S1, obtaining an independent motion simulation model of the equipment; S2, obtaining joint simulation real-time data based on motion transfer simulation and load transfer simulation. The joint modeling and simulation method and system for marine engineering installation operations are suitable for joint modeling and simulation of marine engineering installation operations.

The invention discloses a gate-containing Saint-Venant equation set modeling method based on a model order reduction technology, and belongs to the technical field of hydraulic engineering, and the gate-containing Saint-Venant equation set modeling method comprises the following steps: S1, constructing a gate-containing original Saint-Venant equation set; s2, discretizing the constructed original Saint-Venant equation set to obtain a nonlinear function in a high-dimensional system; s3, based on a simulation purpose, performing system simulation by using the original Saint-Venant equation set, and collecting state variables to construct a snapshot matrix; and S4, based on the nonlinear function in the high-dimensional system, simplifying the snapshot matrix by using a model order reduction technology, and further constructing a low-dimensional order reduction model corresponding to the original Saint-Venant equation set, thereby completing the construction of the Saint-Venant equation set containing the gate. According to the method, the model is subjected to order reduction processing, so that the simulation precision is ensured, the calculation efficiency is greatly improved, and the requirements of real-time simulation and control are met; the method has a wide application prospect and can be used in the fields of river scheduling, water conservancy project optimization, flood control early warning and the like.

The application discloses a lithium ion battery internal short circuit fault simulation method, comprising the following steps: S1, establishing a lithium ion battery single particle lumped parameter estimation model, and estimating the dynamics and transfer attribute parameters of a lithium ion battery to be simulated by using a control equation; S2, constructing an electrochemical-thermal coupling 3D model and setting a control equation thereof; S3, substituting the dynamics and transfer attribute parameters of the simulated lithium ion battery into the constructed electrochemical-thermal coupling 3D model, simulating the electrothermal behavior of the lithium ion battery under different fault types based on the control equation, and realizing internal short circuit fault simulation. The application solves the defects of the existing fault simulation scheme in simulation accuracy, calculation rapidity and application universality, establishes an internal short circuit fault electrochemical-thermal coupling 3D model, and provides simulation data basis for an internal short circuit fault detection method.

This application relates to the field of automotive technology, and more particularly to a method, apparatus, device, and storage medium for adjusting a model. The method includes: obtaining a first collision simulation result based on a whole-vehicle collision model of a vehicle; the first collision simulation result includes at least the impact force of a first barrier and a protective beam in the vertical direction and a first acceleration of the non-deformed position of the protective beam in the vertical direction; determining the equivalent mass that generates the impact force based on the impact force and the first acceleration; controlling a second barrier included in the simplified collision model to impact the protective beam included in the simplified collision model with the impact force based on a simplified collision model of the vehicle and the equivalent mass, thereby obtaining a second collision simulation result; determining a first distance based on the first collision simulation result; determining a second distance based on the second collision simulation result; and adjusting the simplified collision model based on the difference between the first distance and the second distance.

The present invention discloses a vehicle thermal management strategy optimization method and system based on one-dimensional and three-dimensional joint simulation, including: taking cooling water flow and air flow as decision variables, randomly generating a primary control strategy; performing one-dimensional and three-dimensional joint simulation of the cooling system based on the primary control strategy; taking the maximum temperature of the cylinder head fire surface and the average heat exchange of the cylinder liner outer wall obtained by simulation as the optimization target, and updating the control strategy until the optimal control strategy is obtained after the iteration conditions are met. Coupling the one-dimensional and three-dimensional joint simulation technology in the multi-objective optimization algorithm of the electronic water pump and electronic fan control strategy improves the reliability of the optimization process.

This invention relates to the field of thread turning technology, and discloses a thread turning cutting simulation method and system based on the analytical formula of a helical surface. The method includes: acquiring helical surface data during thread turning and constructing a geometric space model of the helical surface that can represent the tool sweep body; acquiring blank data and constructing a blank model using a tri-dexel model; for dexel segments parallel to the rotation axis, calculating the corresponding rotation angle and axial intersection point using the helical surface geometric space model, and calculating the axial cutting result of the tool based on the axial intersection point; for dexel segments perpendicular to the rotation axis, solving multiple solutions for the rotation angle and multiple intersection points using the helical surface geometric space model, selecting the effective intersection points as non-axial intersection points, and calculating the non-axial cutting result of the tool based on the non-axial intersection points. This invention can improve the efficiency and accuracy of thread turning cutting simulation.

The invention relates to the technical field of public safety risk assessment, and particularly discloses a crowd simulation-based ramp area public safety risk assessment method, which comprises the following steps of: analyzing distribution of pedestrians on a ramp, interaction characteristics of the pedestrians and environmental factors in real time; a ramp evacuation model based on a speed-density rule, a pedestrian speed heterogeneity rule, a pedestrian ramp interaction rule and a ramp risk assessment model are constructed, and risk coefficients in a ramp are assessed by using the models, so that related personnel are helped to assess the risk bearing capacity of the ramp. According to the speed-density-based method for introducing the mesoscopic model into the microscopic model, the speed of the pedestrians is restricted by the crowd density, and the actual situation is better met. According to the method, the high precision of the microscopic model is reserved, and the calculation efficiency is improved. Through reasonable algorithm design and a calculation method, real-time simulation can be rapidly completed in a high-density crowd environment, and the calculation burden caused by grid refinement is reduced.

The invention discloses an airborne chaff bomb simulation method based on a three-dimensional particle effect, and the method comprises the following steps: chaff individual particle modeling: simulating the motion trail of a single chaff, the motion characteristics of chaff cloud, and the chaff electromagnetic scattering characteristic RCS based on a three-dimensional particle effect technology; complex environment modeling including a meteorological environment simulation model and an electromagnetic environment simulation model; particle effect driven simulation calculation: under the action of the chaff individual particle model and the complex environment model, firstly carrying out granulation on each chaff individual; then real-time calculation is carried out; and finally carrying out radar wave irradiation analysis. And three-dimensional dynamic visual output: realizing real-time display of distribution and interference effects of chaff bullets in different heights and environments. According to the invention, the processes of explosion, diffusion, disappearance and the like of the chaff projectile in the throwing process can be simulated in a highly vivid manner, including the motion trail, the diffusion distribution pattern, the radar scattering effect and the like of the chaff projectile.

The present invention discloses a method and system for simulating and analyzing the impact on the marine resource environment. The method of the present invention includes constructing a two-dimensional plane numerical model for simulating the marine hydrodynamical environment; processing the grid of the two-dimensional plane numerical model to obtain a grid processing result; constructing a large sea area model based on the grid processing result; determining the water boundary input, time step, bed roughness rate and horizontal eddy viscosity coefficient of the large sea area model to obtain a simulation and analysis result. Through fine grid processing, the details of the marine hydrodynamical environment can be better captured, thereby improving the prediction accuracy of the model.

This invention provides an efficient simulation method for multi-axis laser processing of complex surfaces based on keypoint interpolation. It addresses the technical problem that existing pulse-by-pulse laser processing simulation methods for complex surfaces, while improving simulation efficiency through parallel computing, suffer from limited efficiency gains due to the dependence of the number of parallel operations on the efficiency gain. The proposed method decomposes the processing trajectory of the complex surface into stable and unstable segments. Discretely sampled keypoint pulses are selected for iterative calculation within the stable segment, and interpolation is performed on non-keypoint pulses between two adjacent keypoint pulses. The interpolated morphology is almost identical to that calculated using the iterative method. By replacing iterative calculations with interpolation while maintaining simulation accuracy, the computational load is effectively reduced, significantly improving computational efficiency.

The present invention relates to a method and system for establishing an equivalent model of a doubly-fed wind turbine group. Based on the low voltage ride-through characteristics of the doubly-fed wind turbine group, the active power and reactive power of the doubly-fed wind turbine group during the low voltage ride-through period are adjusted, which can not only suppress the doubly-fed wind turbine group from being disconnected from the grid at overspeed during the LVRT period, but also ensure that the doubly-fed wind turbine group provides reactive power support to the power grid during the LVRT period in accordance with the requirements of the National Standard of the People's Republic of China GB / T36995‑2018 "Test Procedure for Fault Voltage Ride-through Capability of Wind Generator Groups". On this basis, a doubly-fed wind turbine group equivalent method is proposed. The method reduces the order of the doubly-fed wind turbine group model, and can improve the simulation speed while ensuring the simulation accuracy.

The invention relates to the technical field of power system simulation, and particularly discloses a flexible direct current power transmission model simulation method and system based on an MMC control system, and the method comprises the steps: obtaining a trigger pulse signal generated by an improved MMC control system based on a target simulation strategy; and inputting the trigger pulse signal into the flexible direct-current power transmission model for simulation to obtain a simulation result of the flexible direct-current power transmission model. According to the method, on the premise that the simulation precision is guaranteed, the simulation efficiency can be improved, the calculation amount can be reduced, and application and development of the modular multilevel converter technology in actual engineering can be promoted.

A kind of urban rainwater pipe network and river network hydrodynamic accelerated calculation method based on data-driven surrogate model, comprising: based on bidirectional long short-term memory (BiLSTM), graph attention network (GAT) and residual connection, data-driven surrogate model Deep-Drain is constructed, for simulating the simplified process of urban rainwater pipe network and river network water flow;Mechanism model is constructed to simulate one-dimensional hydrodynamic process under measured rainfall and different return period design rainfall, and process data set of rainwater pipe network and river network flow process is constructed, while training set, validation set and test set are divided;Optimal hyperparameter combination of Deep-Drain is found by using Bayesian optimization;The efficiency improvement effect of Deep-Drain is quantitatively analyzed by typhoon storm event;The present application realizes the effective improvement of the calculation efficiency of urban rainwater pipe network and river network flow simulation process.

The invention discloses a multi-cabin system transformer substation thermal environment simulation and phase change material configuration optimization method, and relates to the technical field of transformer substation energy saving and thermal management, and the method comprises the following steps: constructing a multi-physical field reference model, and training to obtain a thermal environment reduced-order proxy model; double-layer collaborative optimization is executed based on the agent model, phase change material physical configuration parameters are searched for on the outer layer, and a matched air conditioner active control strategy is searched for on the inner layer; and according to an optimization result, determining a differentiated material configuration scheme and an operation strategy for each functional cabin. The method is used for solving the problems that existing full-time-domain physical simulation calculation consumes too long time and cannot support large-scale optimization, and the comprehensive energy efficiency of a system is low due to separation of passive design and active control.

The invention belongs to the technical field of quantum computing, and particularly relates to a quantum circuit simulation method based on circuit cutting. By designing a cutting strategy, a complex quantum circuit is divided into a plurality of small sub-circuits, and each sub-circuit can be independently simulated; the method specifically comprises the steps of circuit preprocessing and dependency relationship analysis; sub-circuits are divided through circuit cutting, specifically, a heuristic cutting algorithm is adopted, and an optimal cutting point is determined according to the dependency relationship between the circuits; selecting a scheme capable of minimizing the overall simulation burden by evaluating the overhead of different cutting schemes to optimize the global calculation cost and resource allocation so as to ensure that the cut sub-circuits can be independently and efficiently simulated; and sub-circuit state vector multiplexing: storing the intermediate state vector of each sub-circuit, and searching similar state vectors for multiplexing when a new sub-circuit is calculated, so as to reduce the calculation amount and resource consumption. According to the method, the complexity of large-scale quantum circuit simulation can be reduced, and the calculation efficiency is improved.