91 results about "Experimental system" patented technology

The invention provides a heat-water-force coupling experimental device and a testing method based on dynamic true triaxial electromagnetic Hopkinson bar system loading. The experimental device comprises an X-axis dynamic loading system, a Y-axis lateral anti-seepage loading system, a Z-axis normal static pressure servo control loading system, a seepage system, a temperature control system and a data monitoring and collecting system. According to the device, on the basis of a dynamic true triaxial electromagnetic Hopkinson bar system, a shear loading module, a temperature regulation and control module and a seepage control module are creatively integrated, so that the true working condition of a deep rock mass under the coupling action of dynamic disturbance, osmotic pressure and temperature is simulated. The device breaks through the limitation that a traditional experiment system is difficult to realize multi-field coupling loading under a high-speed shearing condition, and provides an experiment means for dynamic response research of fractured rock mass under a complex multi-field environment.

The invention belongs to the technical field of bioengineering and artificial intelligence crossing, and particularly discloses a microbial fermentation experiment intelligent design method and system based on a large language model (LLM). According to the invention, a historical database can be automatically retrieved and an experiment resource state can be inquired according to an experiment purpose input by a user intention, an experiment scheme is generated through large language model reasoning, and a task structure which can be identified by an experiment system is synchronized to a digital system so as to support confirmation, optimization and execution of tasks.

This invention provides a thermal-hydraulic-mechanical coupling experimental apparatus and testing method based on a dynamic true triaxial electromagnetic Hopkinson bar system. The experimental apparatus includes an X-axis dynamic loading system, a Y-axis lateral anti-seepage loading system, a Z-axis normal static pressure servo-controlled loading system, a seepage system, a temperature control system, and a data monitoring and acquisition system. Relying on a dynamic true triaxial electromagnetic Hopkinson bar system, the apparatus innovatively integrates shear loading, temperature regulation, and seepage control modules to simulate the real-world conditions of deep rock masses subjected to dynamic perturbations, osmotic pressure, and temperature coupling. This apparatus overcomes the limitations of traditional experimental systems in achieving multi-field coupled loading under high-speed shear conditions, providing an experimental approach for studying the dynamic response of fractured rock masses under complex multi-field environments.

This invention relates to the field of blasting testing technology and discloses a method for quantitatively representing intrusive blasting waves within a double-layer curtain wall space. The method includes establishing an experimental system, creating a basic model of the double-layer curtain wall structure, conducting blasting experiments, verifying the accuracy of the LS-DYNA simulation software's simulation of the experimental content, and parameter analysis. The parameter analysis includes quantitative analysis using blasting wave intensity, intrusion hole height H, and the distance C between the outer and inner curtain walls as variables. Through finite element simulation, combined with extensive data and theoretical analysis, a method for calculating the peak pressure of the intrusive blasting wave inside the structure is derived. This method for quantitatively representing intrusive blasting waves within a double-layer curtain wall space has the advantage of ease of use. It allows for the exploration of the blasting wave pressure inside the structure and the corresponding implementation of structural protection designs, effectively improving the scientific rigor and reference value of internal structural protection designs, and making a significant contribution to the stable management of structural safety.

This experimental system comprises: an experimental device capable of simultaneously executing a plurality of experiments with dissimilar experimental conditions; and a search device for searching for experimental conditions to be used in the experimental device. The search device sets a first experimental condition using a first experiment planning method, controls the experimental device so that the experimental device executes a first experiment based on the first experimental condition, and sets a second experimental condition using a second experiment planning method on the basis of the result of the first experiment. Each of the first experiment planning method and the second experiment planning method includes a Bayesian optimization method using a first acquisition function, and a Bayesian optimization method using a second acquisition function different from the first acquisition function.

The invention provides a stress and temperature detection method based on a multi-angle Lamb wave acoustic elastic effect, and belongs to the technical field of nondestructive detection.The method comprises the steps that a Lamb wave group velocity variation approximate model is built based on the influence of loading stress and temperature on the sample size; based on the acoustic elastic effect, a Lamb wave group velocity variation detection model is constructed; the method comprises the following steps: arranging a preset multi-angle piezoelectric patch based on a preset experimental sample, fixing the experimental sample on a tensile testing machine to obtain a stress experimental system, combining a Lamb wave group velocity variation approximation model to obtain a parameter change condition, verifying a detection model, and performing formula parameter inversion to obtain a stress test result. Solving unknown stress and temperature by using a verified Lamb wave group velocity variation detection model; the method solves the problems that the detection result of the existing stress detection method is greatly fluctuated along with the temperature change, the precision is low, the influence of the stress direction is difficult to accurately calculate, and the temperature influence is neglected.

The invention discloses a neutral beam injection one-shot experiment beam source system sparking analysis method and system, relates to the technical field of negative ion source neutral beam injection experiment analysis, and solves the problem that in the prior art, fault tree drawing methods adopted for experiment fault analysis are generally a downlink method and an uplink method, but for a large system, the fault tree drawing method is not suitable for large-scale systems. The two methods have certain limitations, so that the analysis of experimental faults is not thorough; the method comprises the following steps: constructing a fault tree of a target experiment system; analyzing the current fault event based on the fault tree to obtain an upper-layer fault type and a lower-layer fault type corresponding to the current fault event; calculating a priority coefficient of each event in the upper-layer fault type and the lower-layer fault type based on historical experimental data; and processing the current fault event based on the priority coefficient. The technical problem is solved.

The invention belongs to the technical field of icebreaker thermodynamic systems, and particularly relates to a virtual-real fusion test method of an icebreaker thermodynamic system for polar complex working conditions, which comprises the following steps: S1, building a real object experiment system of the icebreaker thermodynamic system; s2, based on a mechanism model principle, constructing a virtual system of a thermodynamic system of the icebreaker; s3, performing a physical experiment under the typical working condition of the polar region by using a physical experiment system; performing a simulation experiment of the virtual system by using the same typical working conditions of the polar region; the virtual system is corrected based on the experimental data; s4, using the corrected virtual system to perform a simulation experiment of the polar region complex working condition to obtain corresponding simulation experiment data; and S5, carrying out design optimization and control strategy optimization on the thermodynamic system of the icebreaker by using the simulation data and the experiment data obtained in the S3 and the S4. According to the method, the dynamic characteristics of the system can be clearly revealed, the modeling accuracy is improved, the limitation of experimental tests is overcome, and an effective auxiliary means for system design optimization is provided.

The invention discloses a mine water recharge multi-field coupling effect simulation experiment system and method, and relates to the technical field of mine water utilization. The experimental system comprises a reservoir simulation box, a mine water supply system, a produced water collection and detection system and a microorganism culture and injection system, the reservoir simulation box is provided with a reservoir medium filling area and is matched with the pressure pump and the temperature control jacket to simulate the pressure and temperature of a deep stratum, the mine water supply system provides controllable mine water, the microorganism culture and injection system injects specific microorganisms, and the produced water collection and detection system detects the water quality and microorganism characteristics. The experimental method comprises the following steps: simulating reservoir conditions, injecting mine water and microorganisms, monitoring multi-parameter changes, and establishing a composite blockage mathematical model and a multi-field coupling partial differential equation. According to the invention, five-field coupling simulation of a stress field, a hydrodynamic field and the like can be realized, and a technical means is provided for underground water environment evolution and permeability mechanism research.

The invention provides a bridge deck reduced scale model design method and experiment system in a plateau environment, and the design method comprises the steps: building a multi-factor coupling similarity criterion based on a similarity principle, physical parameters affecting the prototype structure performance of a bridge deck, and plateau environment parameters; determining a dynamic stress similarity ratio model based on a multi-factor coupling similarity criterion and the plateau environment parameters; based on the dynamic stress similarity ratio model and the section shape and size of the bridge deck prototype structure, performing scale design on the bridge deck prototype structure to obtain an initial scale model; and performing simulation experiment and simulation verification on the initial scale model based on a preset numerical simulation strategy and a preset plateau environment simulation strategy, and performing parameter optimization of the dynamic stress ratio similar model to design a target scale model. According to the scheme provided by the invention, experimental simulation of the bridge deck in the plateau environment can be efficiently and accurately carried out, and the experimental simulation cost is reduced.

The invention discloses a domain model and platform engine docking system and method for a multi-agent calculation experiment system. The method is based on a domain knowledge analysis module, an agent modeling docking module and an environment modeling docking module, and rule evolution modeling comprises the following steps: the domain knowledge analysis module analyzes a domain knowledge document input by a user through a large language model; automatically extracting experimental system boundaries, key roles, environmental elements and behavior logic relationships, and outputting domain knowledge information matched and analyzed with each docking module; the agent modeling module establishes a relationship with a role model in an artificial society based on the analyzed domain knowledge information; the environment modeling docking is based on a standard geographic space and an artificial network establishment relationship; the rule evolution modeling establishes a relationship with an artificial network through a strategy feedback dynamic interaction rule based on individual learning, group emergence and a regulation and control evolution mechanism; the platform engine is used for mapping analysis domain knowledge information to a calculation experiment platform through a standardized interface; according to the method, a complete technical path is provided for efficient construction and simulation analysis of an artificial social system through a structured, standardized and adjustable model construction and docking mechanism.

To provide a technique for reconciling physical property values acquired in different systems.SOLUTION: One aspect of the present disclosure relates to a prediction apparatus including: an acquisition unit for acquiring material information of a material fabricated in a first system according to first fabrication conditions; and a processing unit for deriving the physical property predicted value of the fabricated material from the acquired material information by using a physical property prediction model trained to derive a physical property predicted value from material information. The physical property prediction model is updated by a physical property evaluation value by a second system with respect to the material.SELECTED DRAWING: Figure 1

The invention discloses an experimental system and an experimental method for simulating a microplastic generation rule in a landfill environment, and relates to the field of plastic degradation test equipment. When a plastic degradation test is carried out through the reactor, pressure can be applied to a sample through the pressure plate to simulate an overlying load of the landfill, and the temperature of the landfill is simulated by regulating and controlling the temperature of the reactor and the sample in the reactor through the temperature regulating and controlling mechanism; the percolate supply mechanism sprays percolate into the reactor to simulate the flowing of the percolate in the landfill, and meanwhile, the airflow regulation and control system aerates the sample to simulate the airflow load in the landfill, so that the plastic waste can be detected by simulating the coupling effect of various environmental factors on the plastic waste in the landfill. The complete degradation process of the plastic waste in the refuse landfill is accurately simulated, so that the test precision is improved, and accurate data support is provided for researching a micro-plastic generation mechanism in the landfill.

The present invention discloses an experimental method for monitoring and quantifying the acoustic behavioral responses of fish, comprising: an experimental system, which includes: a circulating water tank for placing a fish school; a 3D optical sensor for obtaining a set of spatial coordinates of the fish school; a plurality of first acoustic wave transmitters for simulating an underwater dynamic acoustic environment; and a plurality of second acoustic wave transmitters for directionally transmitting acoustic waves, the directivity of which is controlled by the set of spatial coordinates of the fish school. The experimental system of the present invention integrates an acoustic stimulation emission system, a circulating water temporary culture system, and a fish behavior recording system, providing an efficient, accurate, and comprehensive means for studying the acoustic stimulation behavior of fish. It is used to monitor, evaluate, and quantify the three-dimensional behavioral responses of experimental fish schools under scenario acoustic stimulations of different intensities and types in conditions simulating natural aquaculture sea conditions, and to characterize their kinematic parameters. When no experiment is being carried out, the experimental fish can also be stably temporarily cultured in the experimental system to achieve stable and real-time regulation of water quality.

The present application belongs to the field of mechanics, and particularly relates to a method for eliminating error of a quasi-static compression mechanics experiment system. By using a constant pressure or a constant loading speed of a pressure head on a testing machine to perform quasi-static uniaxial compression on a test piece at room temperature, and taking two test pieces of different heights, the relationship between the system stiffness, the force and deformation of the system pressure head can be obtained, so as to obtain two corresponding force-time curves and displacement-time curves. By combining the two equations and eliminating the unknown Young's modulus E, the stiffness coefficient of the test system can be obtained, and the displacement-time curve of the pressure head can be obtained. Subsequently, the Young's modulus E can be inversely solved. The present application corrects the error of the mechanics experiment by defining the system stiffness coefficient, so as to realize a higher precision of the Young's modulus E and improve the accuracy of the quasi-static mechanics experiment.

The invention discloses a structure-karst-unloading coupling degradation high and steep slope collapse physical model experiment system, and relates to the field of slope collapse risk management, and the system comprises a construction module which is used for constructing a high and steep slope model containing a karst network; the monitoring module is used for synchronously capturing micron-order opening and micro-fracture evolution information of an internal structural surface of the model and stress-seepage field distribution data; according to the method, the model is guaranteed to be highly matched with the actual geological environment through dynamic calibration of the adaptation degree, micron-sized synchronous capture of internal structure evolution, stress distribution and seepage field data of the model is achieved, and the monitoring precision is improved through multi-device collaborative layout and data credibility verification; and cooperatively applying tectonic stress, karst seepage and graded unloading according to a real time sequence, and dynamically adapting to the quasi-steady-state requirements of the stress-seepage field of the model.

The present application relates to the technical field of road engineering test, in particular to a recycled concrete interface multi-field coupling damage observation and active reinforcement device and method, and constructs a closed-loop experimental system of "observation-diagnosis-treatment" integration. The system simulates the real environment, diagnoses the state change of the internal interface area of the test piece in real time by using various high-precision sensors during the stress damage process of the test piece, and treats the weak interface at the key moment. The mechanical loading, environment simulation, in-situ microscopy, multi-parameter monitoring and active reinforcement intervention are integrated, and the whole chain and integrated research from macro performance to micro mechanism is realized. The dynamic, in-situ and visualized research on the most core scientific problem of recycled concrete is realized. Based on the trigger mechanism of multi-source information fusion, the timing of reinforcement intervention is more scientific and accurate, and data support is provided for optimizing the repair strategy.

The application discloses a cylindrical RM instability strength measurement experiment system and method, and belongs to the technical field of fluid mechanics. The cylindrical RM instability disturbance growth material strength measurement experiment system comprises an experiment device and a measurement system; the experiment device comprises a driving sleeve and a preset disturbance target, and the preset disturbance target is coaxially arranged in the driving sleeve. The cylindrical RM instability strength measurement experiment system and method provided by the application can precisely measure the disturbance growth speed, amplitude, interface morphology and other parameters when high-precision impact loading disturbance targets and filling media in the disturbance targets in the driving sleeve cylindrical implosion are carried out, the strength of the material is calculated by using fluid dynamics numerical simulation of different strength constitutive models or parameters and taking the experimentally measured disturbance data as convergence basis, and the established cylindrical RM instability disturbance growth material strength measurement experiment system and method have important significance for the strength research of materials under conditions of high pressure, high strain rate, large strain and the like.

The present invention discloses a method for analyzing instability motion based on bifurcation theory and degree-of-freedom release experiment. First, a degree-of-freedom release experiment system is built in a wind tunnel. Then, by introducing bifurcation theory into the degree-of-freedom release experiment, a continuous algorithm based on control is established to search for branch equilibrium points and periodic closed orbits. Non-invasive control is adopted to transform the branch search process into an optimization process in which the feedback control quantity tends to zero, so that the feedback control can change the stability of the equilibrium branch while maintaining its equilibrium branch position. Thus, stable and unstable equilibrium solutions can be continuously tracked in the experiment to obtain the global stability characteristics of the aircraft, providing a brand-new experimental method for the research on the dynamic characteristics of the aircraft and enabling accurate prediction of the stall departure characteristics of the aircraft.

The invention discloses a goaf residual coal spontaneous combustion and gas symbiosis disaster simulation experiment system and method, and belongs to the field of coal mine residual coal spontaneous combustion and gas symbiosis disaster. According to the invention, evolution laws of mass, temperature, pressure, gas components and content in the spontaneous combustion and gas explosion process of the residual coal are explored. The residual coal combustion chamber in the simulation experiment system provided by the invention can be independently used, and is provided with a plurality of interfaces for being connected with monitoring equipment, so that the residual coal combustion process can be independently researched, and the evolution of residual coal spontaneous combustion and gas symbiosis disasters in a goaf can be comprehensively researched; and a necessary basis is provided for prevention and control of residual coal spontaneous combustion and gas symbiosis disasters in the mine goaf while the experiment cost is reduced.

The invention relates to the technical field of friction force experiments, and discloses a friction force physical experiment method which comprises the following steps: S1, establishing a multi-scale friction force model; s2, introducing a nonlinear dynamic model; s3, considering the influence of environmental factors; s4, designing an experiment system; s5, data acquisition and analysis; s6, experimental verification and optimization. The step of establishing the multi-scale friction force model comprises the substeps of establishing a microscopic friction force model based on molecular dynamics simulation; a macroscopic friction force model is deduced through a Hertz contact theory, and the influence of surface roughness and friction rate on a friction coefficient is introduced for modeling; and fitting experimental data through a least square method, and adjusting parameters in the friction force model. According to the invention, by introducing adaptive gain adjustment, disturbance compensation and robust control strategies, the stability, precision and adaptability of the system are significantly improved in friction force nonlinearity and external disturbance environments, and accurate control in a high dynamic range is ensured.

The invention relates to the field of testing or analyzing materials by means of measuring chemical or physical properties of the materials, in particular to an experimental system for determining a shear expansion area range of dense fine-particle soil and a using method of the experimental system. The experimental system for determining the shear expansion area range of the dense fine-particle soil comprises a preparation subsystem (1), a cutting subsystem (2), a measuring subsystem (3) and a control subsystem (4), and is characterized in that the preparation subsystem (1) comprises a suction device (11), a gas-water separation device (12), a preparation pool (13) and the like; the cutting subsystem (2) comprises cutter teeth (21), a tooth holder (22), a force transducer (23) and the like; the measuring subsystem (3) comprises a permeable stone (31), a water pressure sensor (33) and the like; and the control subsystem (4) comprises a data acquisition instrument (41), a data line (42) and a control device (43). The method is close to reality and good in controllability.

The invention provides an intelligent micro-fluidic experiment system and method with digital twinning and AI auxiliary functions. The intelligent micro-fluidic experiment system comprises a micro-fluidic chip, and the micro-fluidic chip is connected with a micro-sampling module and a collecting module which are arranged at the two ends of the micro-fluidic chip respectively; a control module is further arranged on one side of the micro-fluidic chip, and the control module is connected with a first constant-flux pump, a second constant-flux pump and a gas mass flow controller which are arranged on the micro-sampling module; a detection module is arranged between the control module and the micro-fluidic chip, and the control module is connected with the detection module. According to the intelligent microfluidic experiment system and method with the digital twinning and AI auxiliary functions, automation, intelligentization and high efficiency of a microfluidic experiment are achieved, particularly, due to application of the digital twinning and AI technology, the precision, depth and breadth of the experiment are remarkably improved, and the experiment efficiency is improved. And a powerful tool is provided for the application of the microfluidic technology in the fields of scientific research and teaching.

The invention relates to an experimental diagnosis method and system for particle three-dimensional arrangement in a dynamic particle system, and belongs to the technical field of particle three-dimensional arrangement diagnosis. Comprising the following steps: S1, acquiring a first candidate value of the particle spacing of the dynamic particle system, and calculating the illumination laser thickness according to the first candidate value; s2, according to the thickness, adjusting the thickness of the sheet illumination laser, and illuminating the experiment system; s3, shooting the experiment system from a view angle perpendicular to the illumination area to obtain a plurality of groups of images; s4, obtaining position information of the particles in the dynamic particle system according to the multiple groups of images, and calculating to obtain a radial distribution function corresponding to the projection of the three-dimensional arrangement of the particles on the two-dimensional surface; s5, determining a second candidate value of the particle spacing of the dynamic particle system according to the position of the first peak value of the function, and recalculating a new illumination laser thickness; and S6, the step S2 is repeated until the accurate particle spacing and the corresponding illumination laser thickness are obtained. The method is not limited by visual fields, and is low in hardware cost, small in occupied space and high in diagnosis precision.

The present invention provides a flux imaging method and device for a two-dimensional large-scale soil water experiment system. The method includes: Step 1, continuously monitoring the state variables in the soil at each monitoring point through the physical quantity monitoring units buried in the soil in the two-dimensional experiment system. The state variables include water content and soil matrix potential; Step 2, establishing a parameter t jk (l φ ) that reflects the indicative relationship between the monitoring points; Step 3, using the state variable change matrix T(l φ ) to characterize the state variable changes of all monitoring points; by taking the difference of the monitoring results of the state variables at different times, solving r jk,φ , and determining the state variable change matrix T(l φ ); Step 4, correlating the vector rates and the state variable change rate matrices of all monitoring points to identify the flux transmission paths; Step 5, solving for W. For any monitoring point position, the influence of the monitoring points with topological relationships on the state variables can be determined, and the topological points with the largest W are connected, thereby realizing fluidity correlation and imaging analysis.

This invention belongs to the field of geothermal extraction technology, specifically relating to an experimental system and method for simulating production interference between deep and shallow geothermal reservoirs. The invention involves sequentially setting a shallow simulation model, a partition simulation model, and a deep simulation model from top to bottom within a high-pressure sealed shell. A fracture simulation model is vertically positioned within the high-pressure sealed shell. Permeable fractures are established at their upper and lower ends, respectively connected to the shallow and deep simulation models. The partition simulation model is isolated from the shallow, deep, and fracture simulation models, thus forming isolated shallow and deep simulation models and simulating fracture connectivity between them. The temperature of the shallow and deep simulation models is controlled using shallow and deep heating devices, and injection and production parameters are controlled using an injection and production system, thereby simulating production interference between deep and shallow geothermal reservoirs.

The invention relates to the field of monatomic catalytic material research equipment, in particular to an intelligent experimental system for high-throughput screening and automatic preparation of monatomic materials. The intelligent experimental system for high-throughput screening and automatic preparation of the monatomic material comprises a station stacker crane, a full-process manipulator transportation module, an automatic solid distribution module, an automatic liquid phase source distribution module, a rapid sintering module and an automatic liquid preparation and transfer module, the computer equipment is connected with the multifunctional microwell plate detector. According to the intelligent experiment system provided by the invention, high-throughput and standardized automatic preparation of the monatomic catalytic material is realized, a standardized experiment database is constructed by means of experimental whole-process metadata, the database continuously provides high-quality training samples for an AI model, the structure-performance physical and chemical laws of the monatomic catalytic material are reversely mined and iteratively optimized, and the experimental efficiency is improved. The progress and development of the monatomic catalytic material industry are promoted.

The invention relates to a numerical field and physical field separated real-time mixed test architecture and a test method, and belongs to the technical field of structural engineering tests. The architecture comprises a numerical field computing system, a physical field test system and an interface data communication system. The numerical field and the physical field are completely separated in the modeling, solving and control processes; the numerical field independently establishes and solves a numerical model outside a physical substructure, and interface displacement and speed response are obtained; independently carrying out a loading test on a physical test piece in the physical domain to obtain an interface counter-force response; and the two domains realize real-time two-way exchange and coordination control of displacement, speed and counter force through an interface data communication system. According to the method, the problems of complicated modeling, difficulty in boundary coordination, poor software compatibility, complicated implementation and the like in the prior art are effectively solved.

The invention provides an experimental integrated system for simulating the structure and strength of a plugging layer under pressure fluctuation, and relates to the technical field of testing or analyzing materials by means of measuring the chemical or physical properties of the materials, the experimental integrated system comprises a crack simulation system, and the upper end of the crack simulation system is connected with a plugging liquid circulation system and a base liquid circulation system; the lower end of the crack simulation system is connected with a plugging fluid displacement system and a base fluid displacement system, the left end of the crack simulation system is connected with a working fluid overflow system, the right end of the crack simulation system is connected with a working fluid leakage system and a base fluid flowback system, and the crack simulation system is electrically connected with a high-speed camera. The problem that in the prior art, the experimental result deviation is large is solved.

The application discloses an ecological regulation model for indoor breeding of oncomelania, and relates to the technical field of snail breeding regulation. The model comprises a matching relationship between the number of indoor breeding units and the total amount of oncomelania breeding, which is used for realizing the standardized control of the initial oncomelania quantity of each breeding unit, ensuring the initial ecological balance of the experimental system, and determining the environmental regulation priority of the indoor oncomelania breeding unit based on the matching relationship. The application dynamically corrects the weight of the environmental parameter based on the risk intensity of different transmission stages of schistosoma, breaks through the bottleneck that the static prevention and control strategy is difficult to adapt to the change of the life cycle of parasites, and further realizes real-time monitoring of the fluctuation of biological characteristic parameters in the mating period, the pregnancy period and the reproductive period, so that the environmental regulation can accurately respond to the biological rhythm of the oncomelania population, ensures the sustainability of the indoor breeding of oncomelania to a certain extent, and reduces the risk of schistosomiasis transmission.