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461 results about "Model test" patented technology

Multi-parameter distortion compensation method for fractured rock mass seepage similar model test

PendingCN121766197AAchieve accurate quantitative assessmentSolve the problem of one-sided analysis of distortion effectsDesign optimisation/simulationPermeability/surface area analysisPhysical modelClassical mechanics
The invention discloses a multi-parameter distortion compensation method for a fractured rock mass seepage similar model test, and relates to the technical field of rock mass engineering physical model tests. The method comprises the following steps of: firstly, determining two constraint conditions that the fluid property is invariable and the gravitational acceleration is invariable, correspondingly selecting a basic physical quantity and extracting a core criterion; then analyzing three types of distortion sources of geometric dimensions, dielectric materials and boundary conditions, and establishing a distortion function according to result parameters of seepage flow velocity, seepage flow and seepage pressure; secondly, parameters difficult to control are selected as distortion items, parameters easy to regulate and control are selected as compensation items, the distortion items are substituted into a distortion function to obtain a distortion ratio, the optimal distortion ratio of the compensation items is solved based on a compensation balance formula, and the parameters are adjusted; and finally verifying the interval range of the actually measured distortion ratio. According to the method, the multi-source distortion coupling influence is accurately quantified, the compensation pertinence and precision are improved, operation is easy and convenient, universality is high, and reliable support is provided for underground engineering seepage research.
Owner:HEBEI UNIV OF TECH

Locomotive energy consumption prediction model training method and device

The invention relates to a locomotive energy consumption prediction model training method and device. The method comprises the following steps: performing correlation analysis on a plurality of locomotive energy consumption influence indexes and sample locomotive energy consumption data, and constructing an acquired sample data sequence based on a correlation analysis result; the method comprises the following steps: performing data preprocessing on an acquired sample data sequence to obtain a model training data set and a model test data set; the whale optimization algorithm is adopted to optimize the initial model for locomotive energy consumption prediction, an optimized model is obtained, the optimized model is trained according to the model training data set, and a locomotive energy consumption prediction model is obtained; the initial model is constructed by combining a bidirectional long-short-term memory network of an attention mechanism; and obtaining an output prediction result based on the model test data set and the locomotive energy consumption prediction model, and carrying out reverse normalization processing on the output prediction result to obtain a test prediction result so as to verify the effectiveness of the locomotive energy consumption prediction model. By adopting the method, the accuracy and effectiveness of the locomotive energy consumption prediction model can be effectively improved.
Owner:SHUOHUANG RAILWAY DEV +1

Grouting splitting pressure simulation device and evaluation method under high-altitude and high-water-pressure conditions

The invention discloses a grouting splitting pressure simulation device under high-ground and high-water-pressure conditions, and relates to the technical field of tunnel and underground engineering model tests. A first water permeable unit controlled by the water injection unit and a second water permeable unit controlled by the confining pressure unit are respectively arranged at two ends in the length direction, so that water pressure and stratum confining pressure are independently applied. The integrated grouting unit of the device is used for grouting soil in the box and is provided with a comprehensive detection unit, the comprehensive detection unit monitors various parameters such as grouting pressure, water pressure, confining pressure, flow, soil resistance and wave velocity in real time, and independent loading and accurate dynamic control of the grouting pressure, formation water pressure and formation stress can be achieved; therefore, the grouting process of the deep-buried tunnel under the conditions of different burial depths, high water head differences and complex grout characteristics can be simulated in a laboratory with high precision, and the technical bottleneck that the complex environment of high ground stress and high water pressure coupling is difficult to reproduce in a traditional test method is effectively solved.
Owner:CENT SOUTH UNIV +1

Oil and gas pipeline magnetic flux leakage detection defect quantification method based on composite convolutional neural network

The invention relates to an oil and gas pipeline magnetic flux leakage detection defect quantification method based on a composite convolutional neural network. The method comprises the following steps: 1) a data acquisition stage: carrying out saturation magnetization detection on a pipeline by adopting a pipeline internal detector to obtain magnetic flux leakage internal detection data containing defects; 2) a data preprocessing stage: performing normalization processing on the magnetic flux leakage data, and constructing a defect quantification data set; 3) a model construction stage: constructing a composite convolutional neural network model; 4) a model training stage: inputting a defect quantification data set sample into the model for training; and 5) a model test stage: performing feedback and iterative optimization for multiple times through a back propagation optimization algorithm of the model, finally outputting optimal model parameters in the training process, and exporting and storing the model parameters. Based on the pipeline magnetic flux leakage detection data, high-precision quantification of pipeline defect size parameters can be realized, and the accuracy and reliability of defect evaluation can be improved.
Owner:SOUTHWEST PETROLEUM UNIV

Lightweight design method, device and equipment for intelligent robot with body and storage medium

The invention provides a lightweight design method, device and equipment for an intelligent robot with a body and a storage medium, and relates to the technical field of artificial intelligence. According to the method, the scene simulation environment is constructed by collecting the task scene parameters, the robot three-dimensional model is constructed based on the lightweight design scheme, the test cases are generated according to the task requirements, the model test parameters are collected, and comprehensive evaluation and diagnosis of the initial lightweight design scheme of the robot are achieved. Through collection, evaluation and diagnosis of model test parameters, a design scheme is continuously optimized, and the reliability of robot performance is improved; through repeated testing and optimization evaluation, iterative optimization of a lightweight design scheme is realized, so that an optimal optimization design scheme is obtained, the lightweight design level of the intelligent robot with the body is remarkably improved, the convenience and adaptability of the specific intelligent robot are enhanced, and the intelligent robot with the body is more intelligent. And powerful technical support is provided for efficient application of the robot in complex task scenes in the financial and medical fields.
Owner:PING AN TECH (SHENZHEN) CO LTD

Water level automatic control device for hydraulic model test and control method thereof

The invention discloses a water level automatic control device for a hydraulic model test, which comprises control units respectively arranged at the water level upstream and the water level downstream of a hydraulic model water tank, and is characterized in that each control unit comprises a door mounting frame, a gate, a threaded rotating rod, a height sensor, a control box, a water level meter and a track, the gate is rotationally connected with a threaded rotating rod, the threaded rotating rod penetrates through the mounting plate and is connected with the electric knob, the height sensor and the control box are mounted on the mounting plate, and the control box is connected with the water level meter through a signal transmission line. The control method comprises the following steps: S1, equipment installation; s2, debugging the device; s3, creating a test item; s4, water level closed-loop control; s5, confirming the water level; s6, collecting and recording data; and S7, completing test cycle monitoring. By adjusting the opening degree of the gate, it is ensured that upstream and downstream water levels are stabilized within the set range, and the problems that in the prior art, manual water level control is low in efficiency and poor in precision in the low-pressure environment are solved.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD +2

Test system and method for simulating water outburst and mud outburst of subsea tunnel under action of vibration

The invention relates to the technical field of soil engineering model tests, and discloses a test system and method for simulating water and mud bursting of a subsea tunnel under the action of vibration, and the system comprises a multi-degree-of-freedom servo feedback vibration module which is used for providing a multidirectional vibration loading platform and feeding back a motor current signal in real time; the visual rock-soil water inrush simulation and multi-field loading module is mounted above the vibration table and is used for accommodating a sample and applying confining pressure and water pressure load; the hierarchical multi-source data acquisition module is communicated with the discharge port and the observation window, and is used for acquiring the outburst mixture and monitoring physical field data; and the intelligent control and risk assessment analysis module is connected with each module to regulate and control loading parameters and invert a catastrophe state based on feedback data. According to the method, a self-adaptive optimization loading mechanism based on the improved particle swarm optimization algorithm is constructed, so that collaborative progressive regulation and control of pore water pressure and vibration frequency parameters are realized, and a critical threshold point of water inrush and mud inrush catastrophe can be accurately captured.
Owner:UNIV OF JINAN

Development type single-phase earth fault real-model test device and control method

The invention relates to a development type single-phase earth fault real-model test device and a control method, the development type single-phase earth fault real-model test device is connected in a whole power grid and comprises a fault intelligent generation module, and the fault intelligent generation module comprises a dynamic resistance simulation unit and an intelligent switching control system. And the intelligent switching control system is used for controlling the access resistance value and the access time of the resistor in the dynamic resistance simulation unit. The dynamic resistance simulation unit structure is of a three-level resistance topology and is combined with a mixed switching matrix of a vacuum relay and a solid-state relay. The intelligent switching control system is used for realizing the switching of the resistor at a current zero crossing point, the intelligent switching control system comprises a low-power-consumption control circuit and a signal acquisition circuit, the structure is matched with the control method, the continuous or step dynamic change of the grounding resistor can be accurately simulated, the problem of transient impact in the resistor switching process is solved, and the stability of the grounding resistor is improved. And a standardized and quantifiable test platform is provided for performance assessment of power distribution network fault handling equipment.
Owner:LIAONING DONGKE ELECTRIC POWER

Dynamic random language input generation method based on large model architecture and training data features

The invention discloses a dynamic random language input generation method based on large model architecture and training data features, and relates to the technical field of large model testing and natural language processing crossing. Comprising the steps of obtaining a target large model type, training data and a test scene demand, and performing large model-classical feature collaborative preparation; the noise tolerance is corrected by training data field concentration degree and grammar specification degree quantification in combination with a model type coefficient, and the confusion degree is finely adjusted according to a trigger rate; effective conflicts are screened by means of cross-modal consistency loss, and input effectiveness is verified in a three-dimensional mode through the trigger rate, the strength and the influence degree; calculating power and resource efficiency quantitative feedback iteration is carried out, stage adaptive input is generated based on time sequence features, and cross-task feature multiplexing is realized through task similarity; performing low-sensitive word disturbance and confrontation-random balance enhancement as required, verifying a result, and returning to a parameter adaptation link for readjustment if the result does not reach the standard; finally, high input adaptation and high-efficiency generation are realized, and the test is ensured to be accurate and efficient.
Owner:SICHUAN JISU POWER TECH CO LTD

Self-propelled model test system for multi-tug collaborative operation simulation

The invention relates to the technical field of ship manipulation and control, and discloses a self-propelled model test system for multi-tug collaborative operation simulation, and the system comprises at least one tug self-propelled model which is provided with a propulsion system and an inertial navigation integrated positioning system; the cargo ship self-propelled model is used as a guided target; and a shore-based control system. The shore-based control system exchanges data with each ship model in real time through a wireless communication network, receives ship model state information, calculates required total control force and torque based on expected movement of the cargo ship self-propelled model and a mathematical model, executes a self-adaptive collaborative thrust distribution strategy, distributes the total control requirement to each tug self-propelled model, and controls the ship model to move. And determining the target thrust magnitude and direction of each tug. According to the invention, high-precision cargo ship guidance can be realized in a simulated environment, the adaptability to the change of the simulated environment is enhanced, the potential of energy conservation and consumption reduction is explored, and an effective technical research and verification means is provided for actual complex port operation.
Owner:RIZHAO PORT GRP CO LTD +2

Bridge vibration exciting and damping integrated device, bridge and laying method

ActiveCN122039536BFlywheelModel test
The application relates to the technical field of bridge vibration control, in particular to a bridge excitation and damping integrated device, a bridge and a laying method. The bridge excitation and damping integrated device comprises a mass block, a spring assembly, an actuator and two groups of lever assemblies. The middle part of the mass block is provided with a mounting hole, and a flywheel is arranged on the mass block. The spring assembly is arranged below the mass block and connected with the mass block, and the other end is connected with a structure to be damped. The actuator is arranged in the range of the mounting hole. The two groups of lever assemblies are respectively connected with the mass blocks on the two sides of the mounting hole through power arm ends, and the resistance arm ends are connected with the end parts of the telescopic rods of the actuator. When the telescopic rods of the actuator are telescopically extended or retracted, the mass blocks are driven to move up and down through the lever assemblies. The problem that the damping effect is only predicted through numerical simulation or simplified model test in the prior art and it is difficult to adjust parameters after installation can be solved. In addition, the nesting layout of the actuator and the mass block can reduce the requirement for the installation space by using the lever displacement amplification principle.
Owner:CHINA RAILWAY BRIDGE RES TECH CO LTD +2

Device and method for testing local scouring model below pipeline

The invention provides a device and a method for testing a local scouring model below a pipeline. The device comprises an organic glass plate cuboid model box, a cover plate, a limiting plate, a rubber ring, the pipeline, a side baffle, a water tank A, a water tank B, a deposition tank, a balance, a computer and a camera. Through collaborative design of a limiting plate and a cover plate, water flow only acts on a contact interface between the lower portion of the pipeline and a soil layer, disturbance of an upper streaming vortex-induced effect is effectively avoided, and precise simulation of local scouring below the pipeline is achieved; a water flow pipe winding phenomenon, a sediment migration and deposition process and pit flushing time evolution are observed in real time by virtue of a camera, and an evolution process of initial micro-pit formation, pit body expansion, gap generation, gap extension and pit flushing form stability is completely captured in combination with quantitative weighing of a balance and a computer; and accurate test data and theoretical support are provided for the anti-scouring design of the pipeline foundation.
Owner:NANJING FORESTRY UNIV

Synchronous measurement system of internal flow field of compressor based on PIV and pressure sensor

PendingCN122345464ASensor arrayData stream
The application discloses a compressor internal flow field synchronous measurement system based on PIV and pressure sensing, relates to the technical field of compressor experimental aerodynamics measurement, and is suitable for accurate measurement of flow field parameters in a diffuser modeling test of a compressor. The system comprises a dynamic pressure sensor array, a signal conditioning module, a multichannel dynamic pressure acquisition card, a double-pulse laser, a high-speed CMOS camera, an FPGA synchronous controller, a PIV post-processing server and a multi-source data fusion workstation. The FPGA synchronous controller is used as the only time sequence reference of the double-pulse laser, the high-speed CMOS camera and the multichannel dynamic pressure acquisition card, the traditional software trigger is replaced by a hardware trigger, and system delay jitter is eliminated. The timestamp marking pulse and the first pulse trigger signal are output simultaneously, the pressure data stream obtains a sampling point index corresponding to the laser emission moment directly, and the time synchronization accuracy of the velocity field and the pressure field reaches the nanosecond level.
Owner:BEIJING INST OF TECH +1

A centripetal permeation model device

The application provides a centripetal infiltration model device and relates to the technical field of vacuum preloading model tests, and comprises a steel frame mechanism, the inside of the steel frame mechanism is provided with a rigid-flexible combined lining, the top end of the steel frame mechanism is provided with a load loading system, and the bottom end of the steel frame mechanism is provided with a sand collecting pool; the inside of the rigid-flexible combined lining is sequentially provided with a vacuum control system, an air pressure test system and a water pressure test system from top to bottom, and the outside of the steel frame mechanism is provided with a soil pressure and soil sample deformation monitoring system. The rigid-flexible combined lining can be used for eliminating the side wall friction force, can be used for researching the vacuum preloading evolution mechanism and testing new vacuum preloading materials and technologies, and through the centripetal infiltration model device, the vacuum degree attenuation mechanism in the vacuum preloading process can be simulated and researched, and new technologies for improving the clogging condition of the drainage plate can be tested.
Owner:HOHAI UNIV +2

Testing device for detecting concrete reflux pumping filling effect

The utility model discloses a test device for detecting the filling effect of a concrete reflux pump, which comprises a bottom plate, a pump pipe connecting port, a pump pipe connecting port and a pump pipe connecting port, and the visual arc-shaped box type part is connected with the bottom plate, the pump pipe access port is communicated with the visual arc-shaped box type part, and exhaust holes are formed in the two sides of the visual arc-shaped box type part towards the highest point. The testing device for detecting the concrete reflux pumping filling effect provided by the utility model solves the problems that the existing testing device cannot carry out large-scale multiple tests and exploration due to the influence of factors such as the number of modeling test sections, the site, the cost and the time, the determined technical indexes are limited to be met, the optimal effect cannot be achieved, and the testing efficiency is poor. In order to solve the problems of low cost, high economic cost and time cost and the like, the test device disclosed by the utility model can be used for intuitively feeling the filling and pouring of the concrete to the closed space caused by different working performances and different pumping settings of the concrete in the pouring process.
Owner:SHANGHAI URBAN CONSTR MATERIAL CO LTD

Shield tunnel electromechanical numerical control and test integrated model test platform and method

The invention discloses a shield tunnel electromechanical numerical control and testing integrated model test platform and method, and relates to the technical field of shield construction testing. Comprising the following steps: S1, collecting water-soil machine three-dimensional coupling test data in real time, and performing data preprocessing; s2, reconstructing a pore pressure, water content, stress and average effective stress multi-distribution field; multiple types of residual parameters are calculated, the three-dimensional water-soil coupling balance is evaluated, the hydraulic stress state is judged, and balance control over flow and pressure is executed; s3, when the hydraulic stress state is imbalanced, evaluating and correcting the flux adjusting quantity, and realizing water inlet and outlet flow adjustment; and S4, based on the three-dimensional water-soil coupling balance change rate and the correction flux regulation variable change rate, evaluating dynamic response consistency, updating parameters and correcting a threshold value. The problem that the test precision and the subsequent construction safety are affected due to the fact that an existing shield test device cannot accurately reflect the stress seepage collaborative change rule in the shield construction process under the complex water-rich stratum is solved.
Owner:CHINA CONSTR EIGHTH BUREAU RAIL TRANSIT CONSTR CO LTD +2

Model tunnel sensor deployment recovery device and method of use thereof

The application relates to the technical field of tunnel engineering model test, in particular to a model tunnel sensor layout recovery device and a using method thereof. The device comprises a first fixing assembly, a second fixing assembly, a first cable fixing assembly, a second cable fixing assembly, a first guide assembly and a second guide assembly; the first fixing assembly and the second fixing assembly are respectively used for being connected to the end faces of the two ends of the model tunnel; the first cable fixing assembly is connected with the first fixing assembly; the second cable fixing assembly is connected with the second fixing assembly; the first guide assembly is connected with the first fixing assembly; the second guide assembly is connected with the second fixing assembly; the cable of the first cable fixing assembly is connected with the second cable fixing assembly in sequence after passing through the first guide assembly and the second guide assembly; and a plurality of sensor hangers are detachably connected on the cable. The device has small space occupation for the model tunnel, has small influence on the ventilation effect and heat transfer effect in the tunnel, and is relatively convenient to operate when the sensor is disassembled and assembled.
Owner:SOUTHWEST JIAOTONG UNIV +1

Method for testing lift force and resistance of aircraft with power system through dynamic model test

The invention relates to the technical field of aircraft dynamic model testing, and discloses a method for testing lift force and resistance of an aircraft with a power system through a dynamic model test, which comprises the following steps: step 1, mounting an acceleration sensor and a corresponding data acquisition module on a rail car in a fastening manner, and recording acceleration data of the rail car; secondly, a support is fastened and installed on the rail car, and an aircraft with a power system is installed on the support; step 3, installing a two-dimensional force transducer; 4, debugging and starting a power system; and step 5, data processing: through the obtained acceleration data and the lift force data and resistance data of each fulcrum, the speed, lift force and resistance corresponding to each moment are obtained through data processing. According to the invention, the lift force and resistance of the aircraft can be simply, efficiently and accurately tested.
Owner:HEBEI LINGLANG TECHNOLOGY CO LTD

Tucker tensor decomposition-based missing value completion prediction method

The invention discloses a Tucker tensor decomposition-based missing value completion prediction method, and relates to the field of second-hand electronic product recovery evaluation result missing value research and application. The method comprises the following steps: 1) removing abnormal data based on a box plot; 2) removing the feature attributes with relatively high feature attribute missing rate; 3) searching feature attributes highly related to the recovery evaluation result value based on a mutual information mode; and 4) constructing a Tucker tensor decomposition completion model based on the training set, verifying the accuracy of the model by the test set, and finally realizing completion prediction of the missing value of the second-hand electronic product recovery evaluation result. The specific construction prediction process is divided into four small steps: initializing a sparse tensor and a factor matrix, calculating a complemented prediction tensor, calculating the difference Loss between a real tensor and the prediction tensor, descending according to a gradient, and simultaneously circulating the last three small steps until convergence. After model training is completed, the model can be directly provided for related employees to use, and therefore efficient recycling is achieved.
Owner:BEIJING UNIV OF TECH

A model test device for saline soil roadbed under different working conditions

This invention relates to the field of saline soil technology, and more particularly to a test device for saline soil subgrade models under different working conditions. It solves the problem in existing technologies that, in order to utilize saline soil more widely and meet the engineering construction needs of saline soil areas, it is necessary to provide a reasonable basis for judging the suitability of subgrade fillers in saline soil areas, requiring testing of saline soil subgrade structures under different working conditions. The test device for saline soil subgrade models under different working conditions includes a support base, two support side frames fixedly connected to both sides of the top of the support base, and two drive mechanisms mirror-mounted on the top of the support base. Both sides of the two drive mechanisms are detachably connected to the side walls of the adjacent support side frames. Several sets of detection components are arranged at the top between the two drive mechanisms. This invention has a reasonable structure, facilitates comprehensive and rapid testing, and allows for various combinations of tests, greatly improving the comprehensiveness of the testing.
Owner:THE SECOND ENG CO LTD OF CHINA RAILWAY 14TH CONSTR BUREAU CO LTD +1

Phased array detection process and verification method of gas production tree drift diameter flange sealing surface simulation test block

The invention discloses a phased array detection process and verification method of a gas production tree drift diameter flange sealing surface simulation test block, and relates to the technical field of petroleum and natural gas wellhead device detection, and the phased array detection process comprises the following steps: S1, obtaining a test block design reference; s2, obtaining sound velocity parameters and baseline echo data; s3, obtaining a scanning parameter table matched with the defect type; s4, obtaining a TCG calibration curve and gain setting for detection; s5, obtaining original time sequence echo data and imaging data; s6, generating a final detection result and a verification report; according to a defect type scanning scheme, 100% detection of sealing surface corrosion and bolt hole transverse and longitudinal cracks is realized, and no detection blind area exists; the quantitative precision is high, specifically, the defect quantitative error is controlled within + / -1.1 mm through targeted TCG calibration, and the precision is improved by 40% compared with that of a conventional process; based on a standardized verification process of a fixed model test block, different operators use the same equipment for detection, and the data variation coefficient is less than or equal to 5%; and the adaptability is high.
Owner:WUHAN BAIYI HUITONG TECHNOLOGY CO LTD

Loess landslide model test box

The invention provides a loess landslide model test box, and relates to the technical field of geotechnical engineering, the loess landslide model test box comprises a box body and a box cover, the box body and the box cover are of an up-and-down covering assembly fixing structure, a test bin is arranged in the box body, a bottom bin, a base plate frame and a slope plate frame are transversely arranged in the test bin in sequence, and the base plate frame and the slope plate frame are on the same horizontal plane; a fall step surface is formed between the bottom bin and the adjacent substrate frame; the model test box has the beneficial effects that the model test box can be combined with a built loess landslide mechanical model to build an actual loess landslide model, and is combined with the test bin in the box body structure to build a loess landslide model in a relative proportion; the slope plate frame, the bottom bin and the base plate frame serve as a bearing structure of the loess landslide model, and the slope plate frame can adjust the slope ratio and slope movement through control to simulate interference of vibration and load factors in an actual loess structure on the loess landslide.
Owner:SEISMOLOGICAL BUREAU OF GANSU PROVINCE CHINA EARTHQUAKE ADMINISTRATION

Equipment monitoring model training method and device, storage medium and electronic equipment

The invention relates to an equipment monitoring model training method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining first monitoring data used for model training, second monitoring data used for model testing and third monitoring data used for model verification of multiple pieces of to-be-monitored target equipment, according to the first monitoring data corresponding to each target device, performing model training on the to-be-trained model to obtain a plurality of device monitoring candidate models, according to the second monitoring data and the third monitoring data, performing data verification on each device monitoring candidate model, and performing data verification on the to-be-trained model from the plurality of device monitoring candidate models. And determining a plurality of equipment monitoring sub-models according to the third monitoring data, and determining a target equipment monitoring sub-model corresponding to each target equipment from the plurality of equipment monitoring sub-models according to the third monitoring data to obtain a target equipment monitoring model for monitoring and early warning the specified operation index data of the target equipment.
Owner:BEIJING HUADIAN TIANREN ELECTRIC POWER CONTROL TECH

Model test system for soft and broken surrounding rock tunnel based on excavation compensation method

ActiveCN224695647URock tunnelModel test
The utility model provides a kind of weak broken surrounding rock tunnel model test system based on excavation compensation method, base inside is supported with the transparent simulation box by hole bottom plate, multiple broken surrounding rock simulation bodies are filled in simulation box, anchor rod and / or anchor cable are equipped on multiple broken surrounding rock simulation bodies;Triaxial dynamic loading system applies dynamic pressure to multiple broken surrounding rock simulation bodies;Double gradient grouting system is assembled in base bottom, real simulation tunnel construction disturbance, grouting reinforcement and support synergistic effect high simulation indoor test platform, solve traditional model test in grouting path control inaccuracy, support response process loss and multiple physical field monitoring incomplete and other technical problems, can be in indoor environment Real simulation coupling evolution process of tunnel surrounding rock and support structure in complex broken stratum, with Structure is reasonable, function is perfect, test repeatability is strong and other advantages.
Owner:CHINA UNIV OF MINING & TECH (BEIJING) +1

Method and device for model testing

The invention provides a method and a device for model testing. The method comprises: a target device determines an auxiliary test model for testing a first model, the auxiliary test model being determined based on a first condition, and the first condition being associated with one or more of the following: a training mode of the first model; obtaining a first model; a training mode of an opposite-end model of the first model; obtaining an opposite-end model of the first model; whether the first model is available; whether an opposite-end model of the first model is available is determined; whether the first model is successfully deployed is determined; whether an opposite-end model of the first model is successfully deployed is determined; whether the reference model is successfully deployed is determined; whether an opposite-end model of the reference model is successfully deployed is determined; and testing whether the equipment supports an opposite-end model of the first model or not. In this way, the target device can select the auxiliary test model based on the first condition, so that the first model is subsequently tested based on the auxiliary test model, and the possibility of obtaining the auxiliary test model is improved.
Owner:GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

Dam centrifugal test model reservoir water level controllable adjusting device and method

The application provides a dam centrifugal test model reservoir water level controllable adjusting device and method, relates to the geotechnical centrifugal model test technical field, and includes a model box. An overburden dam model is arranged at one end in the model box. A placeholder box is arranged at the end away from the overburden dam model in the model box. A guide positioning mechanism is fixedly installed at the bottom end of the model box. When the hydraulic actuator is started and frequently lifted or lowered, the generated vibration is transmitted to the elastic connecting mechanism. The support of the first support platform in the elastic connecting mechanism is matched with the second buffer platform, the second buffer spring and the elastic damping of the movable connecting rod, and the fine adjustment of the third working platform and the precision guide rail pair. The high-frequency vibration transmitted by the hydraulic actuator under high g value is significantly inhibited, water level fluctuation distortion is avoided, and the reliability of test data is improved.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1

A continuous variable speed regulation experiment system and method for marine ballast

The application belongs to the technical field of variable speed regulation, and discloses a continuous variable speed regulation experiment system and method for ship ballast, which comprises a ballast water hardware system and an upper computer remote control system; the ballast water hardware system comprises a water tank, a water pump control system and a remote communication system, and the water pump control system comprises a PLC master control and a pipeline system; the application develops a ballast water control system for model test, which can be used to replace the pressure iron to realize the adjustment of the draft and improve the efficiency. The application simulates the real ship ballast process and realizes the automatic control of the ballast process. The application saves the time for the ballast condition adjustment process in the model test and improves the test efficiency. The application realizes the state simulation of the ship model under the complex sea conditions in the dynamic adjustment process, and can realize the ballast condition adjustment at different speeds; the application breaks through the limitation of the test range and can carry out more experiments.
Owner:COSCO SHIPPING +1

Distribution network electrical fire extinguishing real-model test platform and test method thereof

The invention discloses a distribution network electrical fire extinguishing real-model test platform, and relates to the technical field of distribution network electrical fire extinguishing real-model test, and the platform comprises a storage unit which comprises a storage rack, a mounting groove, a fire making rack, a fire extinguishing unit and an adjusting unit. And the fire extinguishing unit comprises a mounting plate, a fire extinguishing nozzle, a monitoring module, a control valve and a gas storage bottle. Through the arrangement of the adjusting unit, the fire making frame and the fire extinguishing unit, a fire source and a fire extinguishing device can be rapidly and repeatedly arranged. The simple rope pulling operation is converted into accurate and continuous jumping of the clamping column between the mounting grooves. An operator can easily and stably move the fire making frame or the fire extinguishing unit module to any target height in the vertical direction without disassembling any bolt, and stepless adjustment can be achieved between adjacent mounting grooves.
Owner:GUIZHOU POWER GRID CO LTD

A multi-modal wind farm rock high slope support mechanical property evaluation system

The application discloses a kind of multi-modal wind farm rock high slope support mechanical property evaluation systems, including model test module, numerical simulation module, data analysis and evaluation module and scheme optimization module.Optimized support scheme is proposed by the system, can significantly reduce engineering cost under the premise of guaranteeing the overall stability of slope, simultaneously, optimized support scheme can improve construction efficiency, shorten construction period, further reduce engineering cost, the application of the system can ensure that wind turbine foundation and platform are safe and stable in slope area, guarantee the safe construction and long-term operation of wind farm, in addition, the research results of the system can also provide reference for similar engineering, promote the technical progress and development of wind farm construction field.
Owner:POWERCHINA HUADONG ENG CORP LTD

Inner wall plate structure of wind tunnel full-model test section

The invention discloses a wind tunnel full-model test section inner wall plate structure which is characterized in that a front section upper wall pore plate and a front section lower wall pore plate are fixedly arranged on a frame, front section side wall pore plates located on the left side and the right side are arranged between the front section upper wall pore plate and the front section lower wall pore plate, and the front section side wall pore plates are movably arranged on the frame in the horizontal direction; a rear-section upper wall solid plate and a rear-section lower wall solid plate are fixedly arranged on the frame, rear-section side wall adjusting plates located on the left side and the right side are arranged between the rear-section upper wall solid plate and the rear-section lower wall solid plate, the rear ends of the rear-section side wall adjusting plates are hinged to the frame, and injection seams are formed between the front ends of the rear-section side wall adjusting plates and the rear ends of the front-section side wall pore plates. An arc-shaped sideslip upper wall pore plate is arranged between the front section upper wall pore plate and the rear section upper wall solid plate, an arc-shaped sideslip lower wall pore plate is arranged between the front section lower wall pore plate and the rear section lower wall solid plate, and the sideslip upper wall pore plate and the sideslip lower wall pore plate are rotationally and movably arranged on the frame along the sideslip vertical axis. The method has the advantages that multiple working condition requirements are dynamically met, and the flow field control precision is improved.
Owner:INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT