21results about How to "Realize dynamic simulation" patented technology

The invention relates to the technical field of model simulation, in particular to an energy consumption simulation method and system suitable for a grinding machine. The method comprises the following steps that a common material list of the grinding machine is obtained; extracting material attribute data according to the common material list of the grinding machine to obtain a material attribute data set; acquiring to-be-polished workpiece data and grinding wheel data of a polisher; utilizing a finite element analysis technology and the material attribute data set to carry out contact area grid model construction and material attribute assignment on the to-be-polished workpiece data and the grinding wheel data of the polisher to obtain a grid model endowed with material attributes; performing contact area calculation according to the grid model endowed with the material attributes to obtain contact area data; simulation parameter setting is carried out according to the contact area data, and a simulation parameter setting table is obtained. According to the method, thermal-mechanical dynamic coupling solution is introduced into modeling in the grinding process, so that the problem of unbalanced grinding energy consumption caused by insufficient consideration of the thermal effect is solved.

The invention discloses an IFC standard-based method for realizing webpage-side bridge construction progress simulation. The method comprises the following steps of: creating a BIM model by using BIM modeling software supporting IFC and exporting the BIM model as an IFC file; making a construction progress plan by using project management software, and associating the plan with a BIM model component to realize information integration; extracting progress information from the integrated IFC file, and converting the progress information into a JSON format suitable for the webpage for storage; reading the JSON file by a webpage front end, and drawing and updating a construction progress Gantt chart in real time; carrying out lightweight processing on the IFC file so as to display a BIM model on a webpage; in combination with a Gantt chart, calculating and displaying components which need to be displayed at present, and realizing visualization of the construction progress; according to the method and the system, the IFC file is subjected to lightweight processing, the progress information is extracted, the Gantt chart is drawn, and linkage display of the BIM model and the Gantt chart is realized, so that the problems in the prior art are solved, and the efficiency and convenience of construction project management are improved.

The invention relates to an in-vitro left heart near physiological environment simulation system and method based on an isolated heart, and relates to the technical field of medical instruments. The system comprises a simulation assembly and an external circulation unit. A shell of the simulation assembly is transparent and used for containing the isolated heart, a top cover is provided with an inflow channel, an outflow channel and an observation window, and a reciprocating pump changes a containing cavity through an isolating membrane to hydraulically drive the heart. The external circulation unit is provided with a resistance valve, a compliance assembly and the like. The method comprises the steps of treating the isolated heart, connecting pipelines, assembling parts, adjusting liquid flow and pressure and the like. The left heart dynamic near-physiological simulation of the isolated heart can be realized, the valve movement can be conveniently observed, and the heart movement can be observed from different angles. More importantly, a near-physiological in-vitro testing environment can be provided for cardiovascular implantation and intervention medical instruments (such as an intervention type mitral valve, a mitral valve forming ring and a ventricular septum plugging device), and a way is provided for researching the influence of the near-physiological in-vitro testing environment on valve movement and left heart movement.

The invention relates to a spacecraft flight program digital generation system, which comprises a task editor for editing a flight program execution sequence; the task compiler is used for performing constraint rule check on the flight program execution sequence generated by the task editor; and the task debugger is used for dynamically debugging the flight program execution sequence passing the constraint rule check, comparing the flight program execution process into a dynamic process in which the state of the spacecraft system changes continuously, and judging the correctness of the dynamic debugging result by adopting a method of comparing the running state of the spacecraft system. The correctness of the flight program execution sequence is verified; the task output device is used for exporting information in a single-spacecraft flight program or multi-spacecraft flight program execution sequence and information in a basic database according to user selection; and the basic database comprises a spacecraft configuration database, a spacecraft equipment attribute database, a telemetering database, a remote control instruction database, a function library function database and a resource database.

This application relates to the field of fire safety operation and maintenance management, and discloses a method, system, and storage medium for predicting the service life of fire valves. The method includes: collecting operating data of the fire valves and extracting degradation characteristics; analyzing their interaction with environmental factors to construct a torque change rate model; determining nonlinear characteristic parameters based on torque change indicators and environmental influences; assessing cascading effects when parameters exceed thresholds to obtain influence coefficients; adjusting the sealing roughness simulation mesh and determining the dynamic evolution path; integrating operating frequency fluctuations to update path connection strength to extract attenuation trends and determine degradation threshold points; generating compensation signals to optimize the torque change rate model and obtain nonlinear rate correction values; quantifying the cumulative effect based on the correction values ​​and dividing the service life range of the fire valves. This application solves the problem of difficult-to-accurately assessing the performance degradation of fire valves under complex operating conditions, improving the accuracy of service life prediction and the scientific nature of maintenance decisions.

The application relates to the technical field of dam safety operation and maintenance, and provides a reservoir dam safety monitoring method and system based on digital twinning, which comprises the following steps: a change relationship between dam body stress and displacement is constructed through a water level stress transmission path established by a reservoir dam digital twinning model and historical stress and displacement data; after real-time stress and weather prediction data are acquired, the water level stress is predicted based on the change of the water level in combination with a physical mechanism model and a big data driving algorithm, dam body displacement prediction caused by water level change is obtained, dam body displacement prediction is monitored and early warning is performed, dynamic simulation and safety evaluation of the dam operation state are realized, and the early identification ability and prediction accuracy of dam safety hazards are improved.

This utility model discloses a device for measuring the needle length of an auto-injector, comprising an upper structure and a lower structure, which are slidably connected by a sliding fit. The upper structure is a hollow frame structure with a limiting groove at the top for accommodating the tip of the auto-injector or the activation button. Upper support arms are located on both sides of the upper structure, and each upper support arm has a positioning hole and a connecting hole at its bottom. The lower structure includes a base with lower support arms on both sides. Each lower support arm has a longitudinal hollow groove, and the sliding fit is located within the hollow groove. The upper support arms slide along the trajectory of the hollow groove via the sliding fit. A receiving groove is located in the middle of the base. This utility model has a simple structure, is easy to operate, and has strong adaptability. It can support the complete activation process of a simulated three-step auto-injector, greatly improving the accuracy of needle length measurement in the early stages of research and development.

The invention provides a fire extinguishing system fire extinguishing performance testing device for an energy storage system, which relates to the technical field of fire extinguishing performance testing and comprises a basic characteristic parameter acquisition module, a test scheme intelligent generation module, an out-of-control test working condition simulation module, a multi-dimensional parameter acquisition and monitoring module and a fire extinguishing performance evaluation and analysis module. According to the invention, an individual characteristic parameter set of the tested energy storage system is constructed through the basic characteristic parameter acquisition module, so that the test scheme intelligent generation module can generate a targeted dynamic time sequence test scheme, and accurate matching between the test scheme and the actual working condition of the energy storage system and dynamic simulation of the whole thermal runaway process are realized; through the multi-dimensional parameter acquisition and monitoring module and the fire extinguishing performance evaluation and analysis module, three-dimensional comprehensive evaluation of the fire extinguishing efficiency, the cooling performance and the decontamination efficiency is realized, an optimal fire-fighting strategy is automatically output based on an evaluation node distance, and the intelligent level and the engineering application value of the test device are improved.

The invention relates to the technical field of gas monitoring, and provides a mine early warning method and device based on dynamic simulation. The method comprises the steps that all second roadways communicated with a first roadway are found, and the gas diffusion speed of the first roadway is calculated according to the draught fan wind speed of the first roadway and the draught fan wind speed of all the second roadways; according to the gas diffusion velocity of the first roadway, determining the change value of the gas concentration rising rate of the first roadway at the future moment; and calculating the gas concentration of the first roadway at the future moment according to the monitored gas concentrations of the first roadway at the current moment and the past moment and the change value of the gas concentration rising rate of the first roadway at the future moment. The gas diffusion velocity of the first roadway is calculated by using the roadway and the first roadway which are communicated with each other, so that the dynamic simulation of the gas concentration change in the roadway is realized based on the gas diffusion velocity, and the prediction of the future gas concentration in the roadway is finally realized.

The present application relates to a kind of digital mockup construction system for three-dimensional woven preform equipment, the system includes the construction method of five different models and the construction method of four kinds of associations between models, the construction of five different models is physical modeling, data modeling, action modeling, process modeling, simulation, four kinds of associations between models are respectively associated with data, the association of motion model and physical three-dimensional model and data model, the association of process model and motion model and data model, the association of simulation result and data model.This method constructs virtual production process twin model, and carries out two-way real-time interaction with physical production process, utilizes the dynamic update of simulation model driven by multi-source data, standardizes the construction process of digital mockup, realizes real-time monitoring to production process, improves the utilization of data, realizes closed-loop feedback and process optimization.

The invention discloses a DoDAF-based combat simulation method, a DoDAF-based combat simulation system, DoDAF-based combat simulation equipment and a readable storage medium. The method comprises the following steps: modeling an equipment system based on a DoDAF model, and generating and exporting system designs under different viewpoints by using a preset extensible markup language; performing simulation dependency verification on the system design, and if the system design meets a preset simulation requirement, extracting simulation data based on the system design; and performing three-dimensional simulation deduction based on the simulation data, and evaluating system design based on a simulation deduction result. Compared with the prior art, the method has the advantages that complicated operations such as translation, replacement and the like of definitions in the DoDAF model and definitions required by the simulation model are avoided, the complexity of the scheme is reduced, and the processing efficiency of the system is improved. The reliability of simulation and the success rate and the accuracy of the simulation process are improved through the dependency test among the data. In combination with a visual model, a combat system provided by the DoDAF is simulated through three-dimensional simulation, dynamic simulation is realized, and the effect is better.

The invention discloses a space fire behavior prediction method and device, electronic equipment and a storage medium. The method comprises the following steps: obtaining structure information of a target building; acquiring position information of sensing equipment in the target building; building modeling is carried out based on the structure information, and a first space model of the target building is obtained; performing equipment dotting on the first space model according to the position information to obtain a second space model; acquiring operation data of all sensing equipment in the target building, and determining a fire behavior condition based on the operation data; the fire behavior condition comprises a smoke coverage position, an ignition position and a safe position; and the fire behavior condition is applied to the second space model through digital twinning, and visual 3D fire behavior information of the target building is obtained. According to the invention, the fire emergency response speed can be improved, the visualization effect of the fire scene is enhanced, the intelligent level of fire emergency management is improved, the safety of personnel evacuation is enhanced, and the system can be widely applied to the technical field of data processing.

The application belongs to the field of dynamics simulation, and provides a blood flow dynamics simulation method and system based on blood vessel reconstruction and center line driving, which carries out preprocessing and blood vessel segmentation on acquired digital subtraction angiography and computer tomography angiography data, and constructs a three-dimensional blood vessel model; extracts a blood vessel center line and calculates an arc length parameter along the center line, calculates a blood vessel radius distribution through a distance field, and establishes a flow velocity estimation model by using a continuity equation; based on the flow velocity estimation model, a blood flow front function related to time is constructed to represent dynamic propagation of blood flow in the blood vessel; a multi-frame three-dimensional sub-model is generated by matching a digital subtraction angiography sequence, deformation information of the blood vessel over time is extracted, and a periodic pulsation model is constructed; and the blood flow front function and the periodic pulsation model are coupled. The application realizes quantitative estimation of a blood vessel radius, flow velocity and pressure, and interactive dynamic blood flow visualization and local diagnosis capability.

The application relates to a full-link cross-layer security simulation verification method and system for an industrial control system, wherein the method comprises the following steps: constructing a cross-layer coupling model, generating simulation output of the cross-layer coupling model through dynamic interaction and joint simulation architecture among layers; performing semi-physical verification, real-time interception of communication instructions of the industrial control system and injection of programmable delay, determination of the influence of the delay on control accuracy in combination with preset quantitative mapping relationships in the cross-layer coupling model; data interaction and synchronous transmission among the layers are performed through multi-simulation platform cooperation; based on the simulation output of the cross-layer coupling model, the delay influence data in the semi-physical verification and real-time data of the multi-platform cooperative transmission, the data coupling effects among the layers are compared with preset safety thresholds, dynamic simulation verification of full-link cross-layer security of the industrial control system is performed, and the purpose of quantitative evaluation and active defense capability improvement of the full-link cross-layer security of the industrial control system is achieved.

The invention relates to the technical field of digital twinning, in particular to a digital twinning working face system based on a real-size digital model, which comprises a multi-source heterogeneous data acquisition module, a real-size three-dimensional modeling module, a dynamic space registration module, a multi-physics field coupling module and an interactive visualization module, wherein the multi-source heterogeneous data acquisition module is used for acquiring roadway surface point cloud data, equipment operation pose data and real-time pressure data of a hydraulic support; the real-size three-dimensional modeling module is used for constructing a roadway three-dimensional skeleton model with centimeter-level precision and generating an equipment assembly model with the proportion of 1: 1; and the dynamic space registration module is used for dynamically binding the equipment pose data to the equipment assembly model. According to the method, by fusing multi-source sensing data, a real-size three-dimensional model is constructed, and equipment dynamic registration and multi-physical field coupling analysis are realized, so that the problems of low modeling precision, non-real-time attitude binding, insufficient stress visualization and the like of the existing working face are solved.

The application discloses a controllable harmful component detection system in soil based on environmental monitoring and belongs to the technical field of soil environmental monitoring and remediation. The system comprises a data acquisition module, a feature construction module, a migration simulation module and a control execution module. The data acquisition module acquires the soil in-situ spectral reflectance sequence in the monitoring area and synchronously acquires the environmental temperature fluctuation and precipitation intensity data; the feature construction module fuses the above data to construct a soil spectral time sequence feature matrix; the migration simulation module inputs the matrix into a soil harmful component dynamic extraction model to simulate the migration and accumulation process of heavy metal ions in soil pore solution, and outputs the predicted heavy metal ion concentration gradient of different depth soil layers; and the control execution module generates a control instruction according to the difference between the concentration gradient and the safety threshold value to control the start and stop time and output power of the electromagnetic induction heating device and the ultrasonic assisted extraction device.

This invention proposes a predictive method for aero-engine support based on multi-agent modeling. This method comprehensively considers the main factors influencing the number of backup engines available for use. Addressing the variable states of aero-engines during operation and maintenance, it proposes an agent state machine model for aero-engines. Using multi-agent simulation, it recreates various mission scenarios for aero-engines, including ordering, use, overhaul, and return to the factory after failure. This enables dynamic simulation of the entire fleet's aero-engine usage process, predicting the optimal reserve number of aero-engines for a certain period in the future—that is, how many backup engines should be equipped to meet a given operational readiness level. Simulation results show that this invention can effectively simulate the support process of a fleet's aero-engines and accurately determine the number of backup engines required under a given operational readiness level.

The invention discloses a distribution network side high-risk area intelligent monitoring method, system, equipment and medium, and relates to the technical field of power distribution networks, and the method comprises the steps: constructing a distribution network side high-risk area multi-dimensional intelligent monitoring system, collecting multi-source monitoring data, transmitting the data to a data processing center in real time through a dual-mode transmission mode, and carrying out fusion processing and data standardization. The method comprises the following steps: generating a standardized monitoring data set, carrying out risk identification and dynamic evaluation based on the standardized monitoring data set, identifying a risk type by combining an unsafe state cause process model and a risk identification method, evaluating a risk occurrence probability and consequence severity, and generating graded early warning information according to a risk identification and dynamic evaluation result. And real-time monitoring and advanced prevention and control of the risk of the high-risk area of the distribution network side are carried out. According to the method, accurate identification, dynamic evaluation and advanced early warning of the distribution network risk are realized, traditional passive first-aid repair is upgraded to active defense, and the safety toughness of a power grid to deal with extreme weather is remarkably improved.

The present invention discloses a river ecology detection method and system based on digital twins, including: through the fusion of multi-source data, the catchment area of ​​each pixel can be calculated more accurately, and the rivers and tributaries can be determined according to the flow accumulation threshold, so as to obtain the accurate watershed watershed, which greatly improves the accuracy of watershed division and overcomes the shortcomings of traditional methods in detecting subtle terrain changes; in addition, by creating a digital twin model of the river basin, the dynamic simulation and prediction of the river ecosystem are realized; especially when multiple types of sensors fail, the present invention can intelligently choose whether to continue to use satellite remote sensing or drone for data replacement and update the digital twin model by judging the failure results; this mechanism ensures the continuity and reliability of river ecological monitoring and avoids the data interruption problem caused by sensor failure in traditional methods.