39 results about "Static simulation" patented technology

The invention belongs to the technical field of slurry shield slurry film forming, and particularly relates to a dynamic earth pressure balance shield slurry film forming test device and a maintenance observation method.The dynamic earth pressure balance shield slurry film forming test device comprises a base assembly, a stratum box assembly, a shield tunneling machine simulation assembly and a driving assembly, and the stratum box assembly, the shield tunneling machine simulation assembly and the driving assembly are all installed on the base assembly; the shield tunneling machine simulation assembly is in butt joint fit with the stratum box assembly, and the driving assembly is connected with the shield tunneling machine simulation assembly and used for driving the shield tunneling machine simulation assembly to excavate and convey slurry. According to the invention, the limitation that only static simulation can be realized in the existing test can be solved, the actual construction working condition is fit, different water pressure stratum environments can be simulated, constant temperature, humidity and pressure of a mud film working environment can be maintained, the reference value of a test result is improved, and full-flow data from film forming to pressure maintaining and visual support are realized, and the performance of the mud film is accurately captured.

The application provides an asset simulation system for threat awareness, comprising a simulation module, a decision module, a semantic mapping library, a response agent, a resource storage module and a session library, when an access request of an attacker is received, the decision module first matches the resource type corresponding to the request through the semantic mapping library, if it is static resource access, the decision module directly calls the static simulation resource in the resource storage module and returns the response, if it is dynamic resource access, the decision module triggers the response agent, so that the response agent is started and dynamically interacts with the attacker, records the interaction log, and synchronously updates the session context to the session library. The application realizes high-fidelity replication of static and dynamic resources of the protected assets relying on a vertical large model, and through hierarchical design, can quickly respond to static resource access and deeply interact with dynamic resource access.

The application provides a vehicle steering system evaluation method and device, electronic equipment and medium, wherein the method comprises: controlling a vehicle to perform an independent working condition verification test to obtain an independent working condition verification result, the independent working condition verification test instructing the vehicle to apply a fault excitation under a static simulation working condition and perform a preset trajectory driving under a dynamic driving working condition; if the independent working condition verification result meets a preset qualified threshold, controlling the vehicle to perform a coupled working condition verification test to obtain a coupled working condition verification result, the coupled working condition verification test instructing the vehicle to apply a fault excitation under at least two concurrent abnormal states; and evaluating a safety state of the vehicle steering system according to the independent working condition verification result and the coupled working condition verification result. Through the application, a comprehensive, objective and quantitative evaluation test of the rear wheel steering system is realized.

The invention belongs to the technical field of automobile intelligent manufacturing and data processing, and particularly relates to a three-dimensional assembly tolerance prediction method for automobile assembly. The method comprises the steps of obtaining ideal three-dimensional coordinates and actual measurement coordinates of key measurement points under standard working condition characteristics on an automobile final assembly production line, and constructing a historical data set of input characteristic vectors and prediction target vectors so as to train a joint Gaussian process regression model; predicting a deviation correction amount and a heterovariance under the new working condition characteristics to obtain a dynamic correction coefficient, and further updating input parameters in the simulation model; the updated input parameters are substituted into the simulation model, a new tolerance distribution diagram of the key measuring points is generated, a comprehensive risk assessment index is calculated, and tolerance prediction and risk early warning of the automobile assembly process are achieved according to an assessment result. According to the method, the problem that a static simulation model cannot reflect a dynamic production process is solved, and the tolerance prediction accuracy is remarkably improved.

The invention provides a flood condition monitoring method, device and equipment and a computer product, and relates to the technical field of flood simulation analysis. The method comprises the following steps: when a flood spread situation occurs in a target area, acquiring a dynamic simulation matrix according to a first flood discharge channel where a flood situation occurs in a sub-area and a target first river channel where a gate is opened for flood discharge, so that the acquired data of a flood situation monitoring result is more comprehensive; a static simulation matrix is obtained according to all second flood discharge channels in the sub-region and a second river channel communicated through a gate, so that the collected data of the flood condition monitoring result is more representative and real-time; the two sub-regions are compared and analyzed through the dynamic simulation matrix and the static simulation matrix of any two sub-regions in the target region, the flood situation risk value between the two sub-regions is obtained, the flood spreading risk difference between the different sub-regions can be reflected in real time, the deviation between the simulation result and the reality is reduced, and the simulation efficiency is improved. Accurate early warning and dynamic evaluation can be realized.

The invention discloses a carbon emission-carbon sink dynamic coupling model construction method under cross-modal data fusion, and relates to the technical field of carbon emission prediction.The method comprises the steps that cross-modal fusion, space-time alignment and cleaning are conducted on multi-source data related to carbon emission, and preprocessed data are obtained; extracting a carbon cycle state feature vector from the preprocessed data through an attention mechanism of a preset neural network model; respectively constructing carbon emission digital twinborn models for different types of lands; respectively constructing carbon sink digital twinborn models for different types of carbon sink areas; establishing a bidirectional feedback rule for each carbon emission digital twinborn model and each carbon sink digital twinborn model to realize dynamic coupling, and defining a dynamic coupling coefficient; and integrating the carbon cycle state feature vector, the dynamic coupling coefficient and the bidirectional feedback rule into a digital twinborn simulation engine to obtain a carbon cycle digital twinborn body. According to the method, the problems of low data credibility, model splitting and simulation staticization in the prior art can be solved.

The invention discloses a method for predicting spatial distribution of multiple components in a transformer, and relates to the technical field of power equipment operation state monitoring, and the method comprises the steps: firstly constructing a multi-gas component transport physical simulation model of transformer oil based on fluid simulation software, and configuring an observation system mapped with the position of an actual sensor; constructing a time sequence error matrix of actual observation and simulation prediction, and dividing the time sequence error matrix into a training set and a verification set; on this basis, a dynamic B matrix is generated by using an LSTM network, simulation data and real-time sensor observation data are fused through an EnKF algorithm, and dynamic updating and error correction of a simulation model are realized; the data assimilation process is assisted by a self-adaptive step length regulation and control and exception handling mechanism; and finally, dynamically displaying the spatial distribution of each gas component in the oil tank in various forms. According to the method, the problems of space limitation of traditional monitoring, error accumulation of static simulation prediction and the like are effectively solved, and accurate and dynamic prediction of spatial distribution of multiple gas components in the transformer is realized.

The invention provides a turbofan engine fan shaft and a design method thereof. The design method of the turbofan engine fan shaft comprises the steps that an initial fan shaft model with an initial configuration is obtained; wherein the initial configuration comprises a boundary dimension structure of the fan shaft model; the initial fan shaft model is adopted to conduct static simulation on the whole turbofan engine, so that the load borne by the initial fan shaft model is obtained; performing statics topology optimization according to the initial fan shaft model and the load, and obtaining an optimization result; determining the density requirement of each axial section in the initial fan shaft model according to the optimization result, and determining the cavity size of each section according to the density requirement to obtain an optimized fan shaft configuration; wherein the cavity size of the part with the high density requirement is smaller than that of the part with the low density requirement; optimized fan shaft configurations include an initial configuration and cavity dimensions.

The invention relates to the technical field of calculation methods, in particular to a trestle girder deflection inversion method based on double-dip-angle measurement, which comprises the following steps of: establishing a three-dimensional finite element model of a trestle according to trestle design parameters, performing static simulation on the three-dimensional finite element model of the trestle under a standard control load working condition, and acquiring simulation parameters; calculating an initial conversion coefficient according to the simulation parameters, pasting a sensor on the surface of a trestle girder, detecting working parameters of the trestle through the sensor, continuously collecting trestle parameters by the sensor when the trestle enters an effective load steady-state interval, carrying out iterative calculation according to the trestle parameters, and obtaining an effective conversion coefficient after iteration; according to the trestle girder deflection inversion method based on the double-dip-angle measurement, the trestle girder deflection inversion method based on the double-dip-angle measurement can iteratively generate a new conversion coefficient according to the dip angle data of the trestle when the trestle works every time so as to provide an accurate trestle girder deflection value.

The invention provides a rigidity and strength fatigue wear simulation analysis method and equipment for a clutch separation device and a medium, and belongs to the technical field of vehicle clutches. Three-dimensional models of a separation shifting fork shaft, a rocker arm and a gearbox front shell are obtained, and a finite element model is established based on the three-dimensional models; defining a constraint set point, a surface grid set, a contact relation, a material attribute and a grid type; and applying a first load to the surface grid set to establish pre-contact, and then applying a second load to perform static simulation. Extracting stress data to determine a dangerous position, and extracting displacement data to calculate torsional rigidity. And based on the dangerous position and second load cyclic loading, fatigue safety coefficient distribution is obtained, and bushing wear data are extracted to evaluate the wear condition. The rigidity, the fatigue life and the lining abrasion performance of the separation device are evaluated synchronously through simulation, a stress danger area and an abrasion overrun area are positioned, data support is provided for structural optimization and maintenance period formulation, the reliability of the clutch is improved, and the service life of the clutch is prolonged.

The application relates to the technical field of power batteries, in particular to a simulation method and device for a power battery bottom ball impact working condition. Step one, a simplified finite element model of a bottom guard plate and an impact head is established, the material of the bottom guard plate is defined, boundary load conditions are applied, and the maximum reaction force is extracted; step two, a statics analysis model is established and boundary load conditions are applied; step three, the statics is solved to calculate the finite element model, and the result is analyzed and judged. The application combines finite element dynamics and statics simulation analysis methods, greatly reduces the problem of large calculation result dispersion caused by the subjective judgment of engineers, unifies the judgment standard, reduces the test verification rounds, reduces the development cycle, improves the simulation efficiency, solves the problem of poor precision caused by the large size of the dynamics grid and the problem of lacking boundary load in statics.

The invention discloses an oversized transmission drum body structure optimization design method and system, and the method comprises the steps: firstly building a drum body parameterized model in a finite element environment, building design variables of all structural parameters of a drum body, carrying out the grid division, adding constraints, and carrying out the static simulation, thereby obtaining the deformation of the drum body and all stress values of a dangerous section; creating and generating output variables according to the parameters; secondly, obtaining corresponding experimental data matrix data between multiple groups of structural design variables and output variables by utilizing an experimental design module in ANSYS; thirdly, importing experimental matrix data into Matlab, fitting to obtain a function relational expression between a structural design variable and an output variable, then creating a variable, a constraint function and an objective function of an optimization design model, creating an optimization program based on a heritage algorithm, and realizing the volume optimization of the cylinder on the premise of meeting various constraint conditions; therefore, the optimization design of the cylinder structure is completed; according to the scheme, by means of the method, the precision of optimization design of the oversized transmission drum body structure is further improved.

The invention relates to the technical field of thermodynamic system design, in particular to a multi-configuration thermodynamic system comprehensive design method and device and a storage medium, and the method comprises the steps: setting boundary parameters of a thermodynamic system, and setting structural parameters of the thermodynamic system and variable initial values of the thermodynamic parameters; establishing a thermodynamic model through a thermodynamic static simulation tool, and performing static simulation on the thermodynamic system; collecting feasible result data meeting a thermodynamic system operation mechanism as a debugging data set; carrying out equipment structure design through an equipment structure design tool; carrying out dynamic simulation on the thermodynamic system through a thermodynamic dynamic simulation tool and calculating a flexibility index of the thermodynamic system; calculating an economic index of the thermodynamic system through a cost estimation tool; and performing single-objective optimization or multi-objective optimization on the thermodynamic system through a data analysis processing tool, and updating the structural parameters and thermodynamic parameters of the thermodynamic system until various index requirements are met. According to the method, flexible, comprehensive and easy-to-use thermodynamic system comprehensive design can be realized.

The present application relates to the technical field of urban drainage pipe network operation and maintenance detection, and particularly relates to a drainage backflow inspection method based on pipeline tree topology and water flow counting, comprising: obtaining a vector pipeline data set and constructing a pipeline tree topology; marking water flow direction according to elevation difference; determining root nodes and leaf nodes, then giving unit water flow for counting simulation and determining a plurality of suspected block points; generating a test leaf node set by backtracking upstream for each suspected block point to determine the independent or shared attributes of each leaf node; determining the incentive test content according to the number of suspected block points and node attributes: selecting shared nodes for initial testing, then using independent nodes for accurate testing on uncovered points, or directly using independent nodes for one-time testing on all suspected points; adjusting water flow and applying a preset waveform during incentive testing; finally, extracting hydraulic response data to determine the real physical block point and its blockage degree. The present application realizes closed-loop diagnosis of static simulation and dynamic testing, and significantly improves the detection efficiency and accuracy.

The invention provides a dynamic simulation method for a ground equipment pointing satellite load angle, and belongs to the field of spaceflight measurement and control. The method comprises the following steps: calculating an expected azimuth angle and a pitch angle of a ground device pointing to a to-be-simulated satellite; setting geodetic system coordinates of the initial high point and the height of the initial high point relative to the movement horizontal plane of ground equipment, and fixing a satellite load at the initial high point; calculating northeast sky system coordinates of the ground equipment relative to the satellite load under the condition of meeting the movement speed and range limitation; and converting the northeast sky system coordinate of the ground equipment relative to the satellite load into a geodetic system coordinate, and obtaining a motion track of the ground equipment. According to the invention, the satellite load static arrangement avoids the limitation of the mounting capability and endurance of the unmanned aerial vehicle, and the application scene is expanded; the motion trail of ground equipment is calculated in real time based on geometric constraints, the azimuth angle and pitch angle pointing to a fixed load are ensured to be consistent with the expected angle of an on-orbit satellite, and the limitation that static simulation cannot reflect the dynamic change of the angle is broken through.

This invention discloses a method for calculating and verifying ductile fracture parameters of metallic materials, belonging to the field of mechanical property analysis technology for metallic materials. Initial equivalent plastic strain is obtained through tensile testing of standard test bars. Stress triaxiality is calculated using CAE static simulation, and fracture energy is calibrated through explicit dynamic necking simulation. These three sets of core parameters are directly applied to the simulation prediction of actual parts. Finally, physical experiments are conducted with unified constraint loading for calibration, forming a complete closed-loop process. This invention standardizes mesh generation, analysis step settings, and constraint loading methods, eliminating manual value selection and simulation distortion problems. Parameter calibration can be completed with only a single set of test bar experiments, and the test bar parameters can be directly transferred to complex parts. This method simplifies the experimental process, reduces R&D costs, achieves a fracture force prediction accuracy of 85%, and the fracture location is consistent with the experiment. It is applicable to ductile fracture simulation of most metallic materials and can accurately guide part structural optimization and strength design.

The application relates to the technical field of power transmission, in particular to a power transmission tower multi-field coupling simulation system and a safety evaluation method suitable for complex climate environments. The simulation system comprises a static simulation module, the static analysis module is configured to be capable of performing static force simulation by using standard combined loads according to design specifications, and obtaining a static overall model; a sub-model construction module, the sub-model construction module is configured to be capable of establishing a local sub-model set for a dangerous area or a complex load area of the static overall model; a coupling analysis module, the coupling analysis module is configured to be capable of performing coupling analysis on the local sub-model set or the modified static overall model, and outputting analysis results; and a modification module, the modification module is configured to be capable of modifying the static overall model based on the analysis results output by the coupling analysis module.

The invention discloses a method for calculating the coordination number of a polymer-based composite material. The method comprises the following steps: determining a Lennard-Jones (LJ) potential function parameter of interaction among filler particles with different sizes; generating an initial model; relaxation of the initial model: performing position optimization iteration of filler particles on the initial model by adopting a conjugate gradient algorithm; performing cubic simulation box volume compression on the optimized and iterated model; and calculating the average coordination number. According to the method provided by the invention, the coordination number of the three-dimensional multi-particle-size filling particles is calculated on the basis of statics simulation, so that the calculation of the coordination number of the multi-particle-size filling particles is more accurate and efficient.

The invention relates to the technical field of urban drainage pipe network operation and maintenance detection, in particular to a drainage backflow inspection method based on pipeline tree topology and water flow counting, which comprises the following steps: acquiring a vector pipeline data set and constructing the pipeline tree topology; marking the water flow direction according to the elevation difference; after root nodes and leaf nodes are determined, counting simulation is carried out on unit water flow, and a plurality of suspected blockage points are determined; performing upstream backtracking on each suspected blockage point to generate a test leaf node set, and determining an independent or shared attribute of each leaf node; determining excitation test content according to the number of suspected blocked points and node attributes; selecting a shared node to carry out primary test and then accurately testing uncovered points by using independent nodes, or directly carrying out primary test on all suspected points by using independent nodes; adjusting the water flow and applying a preset waveform during the excitation test; and finally, extracting hydraulic response data to judge a real physical blocking point and a blocking degree thereof. According to the invention, closed-loop diagnosis of static simulation and dynamic test is realized, and the detection efficiency and accuracy are remarkably improved.

The invention relates to the technical field of heavy-duty machine tool assembly adjustment, in particular to a heavy-duty machine tool beam slide carriage reversible deformation assembly method. The method comprises the following steps: firstly, carrying out three-dimensional modeling based on working condition data, analyzing deformation of each guide rail surface of a cross beam and a slide carriage under the action of gravity through finite element static simulation, and presetting a reversible deformation inclination amount; and then the cross beam is placed on the adjustable support to be leveled, after the slide carriage is installed, the jacking device is used for fixing the back of the cross beam in a leaning-back mode, the guide rail face on the front face of the slide carriage generates the preset reversible deformation inclination amount, and under the leaning-back posture, the guide rail face on the back face of the slide carriage is scraped till the preset reversible deformation amount is formed. And then overturning the beam and re-leveling, and scraping the back guide rail surface of the beam by taking the front guide rail surface of the first beam as a reference, so that the back guide rail surface is in a backward posture relative to the front surface. And finally, complete machine installation and precision detection are completed. The method effectively compensates the gravity deformation of the large component and ensures the geometric accuracy of the machine tool.

The invention relates to the technical field of power device simulation, and provides a modeling method and device for a power device. The method comprises the following steps: acquiring an output characteristic curve, a channel reverse characteristic curve and a transmission characteristic curve of the gallium nitride power device; establishing a static simulation model of the gallium nitride power device according to the output characteristic curve, the channel reverse characteristic curve and the transmission characteristic curve; and establishing a simulation model of the gallium nitride power device according to the static simulation model and the dynamic characteristic parameters of the gallium nitride power device. According to the modeling method of the power device provided by the embodiment of the invention, the simulation precision of the gallium nitride power device can be improved.

The invention provides an asset simulation system for threat awareness, which comprises a simulation module, a decision module, a semantic mapping library, a response agent, a resource storage module and a session library, and is characterized in that when an access request of an attacker is received, the decision module firstly matches a resource type corresponding to the request through the semantic mapping library, and if the request is static resource access, the response agent is started; the decision-making module directly calls the static simulation resources in the resource storage module and returns a response, and if the access is dynamic resource access, the decision-making module triggers a response agent, so that the response agent is started and dynamically interacts with an attacker, an interaction log is recorded, and a session context is synchronously updated to a session library. According to the method, high-fidelity replication of static and dynamic resources of protected assets is realized based on a large vertical model, and through hierarchical design, quick response can be performed on static resource access, and deep interaction can be performed on dynamic resource access.

The invention discloses a pilot elastic piece design method based on simulation analysis. The pilot elastic piece design method comprises the steps that S10, a three-dimensional model of a pilot elastic piece is constructed; s20, performing statics simulation analysis on the three-dimensional model based on finite element software to obtain a simulation analysis result of the three-dimensional model under a set boundary condition; s30, based on the simulation analysis result, calculating the actual rigidity of the three-dimensional model by utilizing Hooke's law; s40, when the actual rigidity is different from the design rigidity of the three-dimensional model, optimizing the three-dimensional model by adjusting the important size of the three-dimensional model; and S50, the steps S10-S40 are repeated until the difference between the actual rigidity and the design rigidity is smaller than a set threshold value. According to the method, the rigidity of the elastic piece is calculated through simulation analysis, the time cost of processing and re-verification is saved, and the capital cost generated by processing is reduced.

This invention discloses a virtual fitting system for dental prostheses based on 3D scanning, belonging to the field of digital dental prosthodontics. It includes a data acquisition module, a trajectory processing module, a model construction module, a fitting simulation module, and an anomaly optimization module. Through 3D scanning and automated point cloud processing, it can quickly acquire high-precision 3D models of the maxillary and mandibular dentition, providing reliable data support for prosthodontic design. Optical motion capture fully reproduces the patient's physiological mandibular movements, overcoming the limitations of existing systems that can only perform static simulations, making occlusal detection more clinically accurate. A unified reference coordinate system is established to achieve precise model registration, controlling prosthodontic positioning errors within 0.01mm, significantly improving fit. It can automatically identify premature contacts and occlusal interferences and perform intelligent optimization of the occlusal surface, replacing repeated manual adjustments, effectively shortening the treatment cycle, improving prosthodontic accuracy and wearing comfort, and enhancing the overall treatment experience.

The present application belongs to the field of computer aided design and numerical simulation, and relates to a deposition dynamic feedback guided oyster reef induced salt marsh micro-landform construction method. The present application aims to solve the problems of dynamic deposition simulation and automatic layout optimization in coastal ecological restoration, and solve the problems that traditional static simulation cannot reflect dynamic deposition evolution and lacks automatic optimization mechanism. The present application firstly fuses multi-source water and sediment dynamic parameters to generate initial data, and constructs a dynamic deposition evolution model; then inputs initial oyster reef layout parameters to perform biophysical feedback simulation, and generates a sediment deposition atlas; finally analyzes the topographic elevation changes in the atlas, combines with salt marsh suitability indexes, and outputs an optimal layout scheme by using a heuristic search algorithm. The present application not only overcomes the limitations of traditional static simulation, but also improves the scientificity and calculation efficiency of ecological restoration engineering design, and has important application value.

The application relates to a radiation field reconstruction method, a computer device and a readable storage medium. The method comprises the following steps: constructing a kernel data digital twin environment according to three-dimensional basic data, and generating virtual scene data; performing radiation field calculation on a three-dimensional space of the virtual scene data based on radiation source parameters and shielding material parameters, and generating radiation dose distribution data; deploying virtual nodes corresponding to virtual robots and physical robots; planning an inspection path of the virtual robots and the virtual nodes; controlling the physical robots to perform an inspection task according to the planned inspection path of the virtual nodes; acquiring real-time simulation data of the virtual nodes and receiving real-time feedback data of the physical robots; and verifying and updating the radiation dose distribution data based on the real-time simulation data and the real-time feedback data. The method can solve the problem of large deviation between static simulation and a real environment through virtual-real closed-loop correction, continuously improve the radiation field model precision, and provide a reliable basis for subsequent inspection path optimization.

The application provides a mine large-scale bucket lightweight design method based on topological-size joint optimization, belongs to the technical field of mine equipment lightweight, and specifically comprises the following steps: modular design is conducted on the mine large-scale bucket; a lining plate arrangement mode is selected; finite element static simulation is conducted on the bucket box of the mine large-scale bucket; a geometric model of the bucket box after topological optimization is obtained through preliminary topological optimization; design parameters, optimization targets and constraint conditions of size optimization are defined based on the topological optimization result; a bucket box proxy model based on a Fourier neural operator is constructed; and the optimal design parameters of the bucket box are solved based on the proxy model; the method can find the optimal bucket structure design scheme and the optimal lightweight model of the lightweight result in a specified interval through multi-stage lightweight optimization of the bucket.

The utility model relates to a sharpness detection device for a medical cutter. Comprising a bracket, a clamping piece for clamping a simulation hard board, a moving device for driving the clamping piece to move, a supporting column arranged on the bracket, a connecting piece arranged on the supporting column, a first block sliding on the supporting column, and a limiting piece for limiting the position of a mobile phone, the moving part is used for driving the first block to move up and down; the detection part is used for detecting the cutting time of the mobile phone; and the moving device is arranged on the bracket. The problems that the cutting time of a cutter cannot be accurately measured, constant output of cutting thrust cannot be guaranteed, the maximum thrust borne by the cutter during cutting or drilling cannot be simulated, and the cutting time of the cutter cannot be accurately measured due to the fact that the cutter is manually controlled to cut a static simulation hard board during detection are solved. And the sharpness, the breaking strength and the expected service life of the blade part of the cutter during cutting cannot be simulated and calculated.

The invention relates to the technical field of metabolism simulation, in particular to a static simulation method for the metabolic process of pollutants coupling fish enteric microorganisms and digestive enzymes, which comprises the following steps: acquiring a fish enteric microorganism enrichment culture and an enteric enzyme extract, and analyzing the abundance of a fish enteric microorganism community and the variety of digestive enzymes; a static model composed of a gastric phase compartment, a midgut compartment and a hindgut compartment is constructed, and key incubation parameters such as culture medium volume, pH value, temperature, digestive enzyme activity and bile salt concentration of each compartment are determined. In the invention, the preparation and pre-stabilization method of the intestinal microbial liquid is particularly optimized, the authenticity of microbial metabolic activity is ensured, and the pairing relationship between pollution conversion and different digestion stages of fish is established by constructing a pollutant static metabolic conversion method of microbial community and digestive enzyme. The evaluation accuracy of the first-pass metabolic reaction of the pollutants is improved, and structural information of microorganisms, enzymes, the pollutants and substrates is integrated.

The invention discloses a superconducting maglev electromagnetic induction simulation power supply system and a simulation method thereof, and relates to the technical field of superconducting maglev traffic and electromagnetic induction power supply. The system comprises 13 '8'-shaped three-in-one coils, 15 '8'-shaped current collection coils and a topological circuit of an alternating current-direct current-alternating current conversion structure, the current collection coils are formed by winding a wire, and joints are reserved in the upper and lower square-shaped coils respectively. The three-in-one coils are connected in a specific mode to meet the phase requirement of injection currents of adjacent coils, the current collection coils form a three-phase symmetrical circuit, then three-phase variable-frequency currents with the frequency of 138.89-333.33 Hz and the amplitude of 118 A are injected into the three-in-one coils through a topological circuit, the current frequency is 6 times of the fundamental wave angular frequency of the actual train speed corresponding to the train speed, the corresponding train speed ranges from 250 km / h to 600 km / h, and the three-phase variable-frequency currents are connected with the three-in-one coils through a topological circuit. Therefore, static simulation of power supply system operation is realized. A superconducting coil and a long track are not needed, the experiment space is greatly reduced, the cost is reduced, and meanwhile the experiment safety and reliability are improved.