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45 results about "Stationary model" patented technology
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Intelligent optimization algorithm based cloud manufacturing computing resource reconfigurable collocation method
InactiveCN102624870ASolve the singularityIncrease flexibilityTransmissionCollocationStationary model
The invention relates to an intelligent optimization algorithm based cloud manufacturing computing resource reconfigurable collocation method, in particular to a method for modifying relevant collocation attributes and algorithms online according to different collocation conditions on the basis of multiple intelligent optimization algorithms, which aims to realize flexible, extendible and efficient policy solution of massive computing resource collocation in the cloud manufacturing mode and flexible disintegration, integration and reconfiguration of model demands, input / output and policy operators in a modularization and servicisation manner, and solves the bottleneck problems of singleness and non-portability and the like caused by regular constraint, fixed models and regular algorithms in computing resource collocation. The intelligent optimization algorithm based cloud manufacturing computing resource reconfigurable collocation method has the following advantages that separation of collocation models and algorithms for the computing resources is realized, modularization reconfiguration inside the models and the algorithms is supported, integration is efficient, levels are clear and extendibility is high.
Owner:BEIHANG UNIV
Gesture adjusting device for model with four degrees of freedom for hypersonic speed pulse wind tunnel
ActiveCN103076152AReduce distractionsSimple structureAerodynamic testingStationary modelDegrees of freedom
The invention provides a gesture adjusting device for a model with four degrees of freedom for a hypersonic speed pulse wind tunnel. The device comprises a fixed bottom plate, a horizontal displacement adjusting mechanism arranged on the fixed bottom plate and axially sliding along the fixed bottom plate, a vertical displacement adjusting mechanism arranged at the upper end of the horizontal displacement adjusting mechanism and moving in the vertical direction, an attack angle displacement adjusting mechanism arranged at the upper end of the vertical displacement adjusting mechanism, moving up and down along with the vertical displacement adjusting mechanism in the vertical direction, and rotating in the vertical direction, and a side sliding angle displacement adjusting mechanism arranged at the upper end of the attack angle displacement adjusting mechanism and rotating horizontally. The upper end of the side sliding angle displacement adjusting mechanism is used for fixing the model. The gesture with four degrees of freedom of the model is adjusted by means of adjusting the horizontal displacement of the model through the horizontal displacement adjusting mechanism, adjusting the vertical displacement of the model through the vertical displacement adjusting mechanism, adjusting the attack angle of the model through the attack angle displacement adjusting mechanism, and adjusting the side sliding angle of the model through the side sliding angle displacement adjusting mechanism.
Owner:NAT UNIV OF DEFENSE TECH
System and method for expanding model driving development capability by applying plug-in
ActiveCN102033743ASolve the problem of insufficient description abilityExpandable and flexibleSpecific program execution arrangementsModel descriptionStationary model
The invention relates to a system and method for expanding the model driving development capability by applying a plug-in. In the system and the method, a'model and plug-in' combined mode is provided to describe and establish a software system, firstly a model designing tool is used for establishing basic model description of the software system and then establishing a plurality of reusable plug-pin model for further describing a basic model object, the plug-in model can be expanded randomly on various basic model objects, and the plug-in can complete a software function with any complexity, therefore, the expansion of the model driving development capability is realized. By utilizing the invention, the technical problems of the existing model driving development method that because a fixed model is adopted, the describing capability of complex service system is poor, and the software system with the model driving development can not be established, expanded and maintained visually and dynamically under the operating state and the like are solved. The system developed by using the method has the advantages that the development complexity degree is low, the development speed is fast, the reusable degree of technology is high, the expansion is flexible, the maintenance is convenient and the reliability is high.
Owner:广州翼风信息科技股份有限公司
Methods for channel estimation in the presence of transmit beamforming
ActiveUS20060023653A1Computational savingControl complexityFrequency-division multiplex detailsTime-division multiplexStationary modelRake receiver
The present invention relates to a method for estimating a propagation channel in the presence of transmit beam-forming within a receiver, accounting for the structure of two logical channels referred as to a common channel and a dedicated physical channel (CPICH, DPCH) and based on a common structure of corresponding propagation channels, said DPCH channel comprising two sub-channels (DPDCH, DPCCH), said propagation channels being modeled as a linear superposition of a finite number of discrete multipath components following an uncorrelated-scattering wide-sense stationary model, a multipath component being characterized by a time-varying multipath complex coefficient and a delay. Use: RAKE Receiver.
Owner:TELEFON AB LM ERICSSON (PUBL)
Multi-model generalized predictive control system and performance evaluation method thereof
InactiveCN102998974AImprove transient performanceImprove steady state performanceAdaptive controlTransient stateSampling instant
The invention provides a multi-model generalized predictive control system and a performance evaluation method thereof. A plurality of fixed models and two self-adaptation models are adopted to parallelly identify dynamic characteristics of a system, optimal partial models are switched at each sampling instant to serve as current models based on performance indexes, optimal controllers are designed to control, and a minimum variance standard performance evaluation method is adopted to conduct performance evaluation on the multi-model switched generalized predictive control system. Compared with the traditional single-model generalized predictive control system, the multi-model switched generalized predictive control is adopted in a system for treating procedure parameter hopping, transient state performance of the system is improved, transient state errors are removed, and stability of the system is guaranteed.
Owner:SHANGHAI JIAO TONG UNIV
Multi-band integrated speech separating microphone array processor with adaptive beamforming
A speech separating digital signal processing system and algorithms for implementing speech separation combine beam-forming with residual noise suppression, such as computational auditory scene analysis (CASA) using a beam-former that has a primary lobe steered toward the source of speech by a control value generated from an adaptive filter. An estimator estimates the ambient noise and provides an input to the residual noise suppressor, and a post-filter may be used to noise-reduce the output of the estimator using a time-varying filter that compares two or more outputs of the beam-former with a quasi-stationary model of the speech and ambient noise.
Owner:CIRRUS LOGIC INC
Method for on-site measuring permeability coefficient of landfill gas
InactiveCN102053054AExplosion proneOvercoming dangerPermeability/surface area analysisStationary modelPermeability coefficient
A method for on-site measuring permeability coefficient of landfill gas adopts a measurement system comprising a lower opened tube well, a gas pressure sensor, a gas pressure display recording instrument, an extraction pipeline valve, a leachate emptying valve, a leachate emptying pipe, a gas measuring apparatus and a centrifugal fan. The method adopting extraction mode comprises the following step tube well internal pressure and extraction flow rate are recorded after the gas is stable; and the permeability coefficient of landfill gas is obtained after the substitution to a stationary model. In the method, not only are the conventional extraction pipeline and equipment in a landfill utilized, but also the defects of easy explosion and high hazards which are caused after air and methane are mixed when gas injection mode is adopted are overcome, further the characteristics of landfill covering permeability and permeability coefficient difference in horizontal direction and vertical direction of the landfill caused by layered landfilling and compaction are fully considered. Therefore, the method provided by the invention has the advantages of high measurement accuracy, simple system, and convenience in operation; in addition, key parameters are provided for the pollution control and the recycling of the landfill gas, so that the method has a promised application prospect.
Owner:TSINGHUA UNIV
Method of simulating the sedimentary deposition in a basin respecting the thicknesses of the sedimentary sequences
ActiveUS20060015260A1Seismic signal processingSpecial data processing applicationsLithologySeismic survey
The method allows, by means of an iterative inversion algorithm, to predict the spatial distribution of the lithologic composition of sediments deposited in a sedimentary basin during a geologic time interval, and the temporal evolution of the depositional profile throughout filling of the basin, while respecting exactly the thicknesses of the sedimentary sequences measured otherwise. The input data consist of the thickness maps of the sedimentary layer studied, data relative to the location and to the composition of the sediment supply at the boundaries of the sedimentary basin studied, and physical parameters characterizing transport of the sediments during the period considered. These data are determined by interpretation of seismic surveys, by measurements and observations. This set of data is applied to an iterative inversion loop initialized by the accommodation provided by a stationary multilithologic diffusive model. This loop then works as a fixed-point algorithm correcting the accommodations by means of a preconditioning of the residue on the sequence thicknesses obtained by an instationary model. This preconditioning is obtained by applying the tangent application of the stationary multilithologic model to the residue on the thicknesses. At the output, we obtain the accommodation at the end of the sequence considered, as well as the bathymetry and surface composition solutions at any time of the sequences of the instationary model calibrated to the layer thicknesses. Application: location of hydrocarbon reservoirs notably.
Owner:INST FR DU PETROLE
Preparation method of saturated soil sample in geotechnique dynamic centrifugal model test
ActiveCN104215484AHeavy loadShorten the consolidation timePreparing sample for investigationPorosityStationary model
The invention relates to a preparation method of a saturated soil sample in a geotechnique dynamic centrifugal model test. The preparation method comprises the following steps of drying a field soil sample, crushing, and screening the field soil sample through a geotechnique sieve; calculating the needed water amount after the saturated moisture content tested by a conventional geotechnique test is increased to a certain extent, stirring and preparing the saturated soil sample in a vacuum stirring machine; uniformly loading the saturated soil sample into a model box, and embedding a porosity water pressure sensor in the soil sample; laying an isolation layer on the top of the saturated soil sample, uniformly laying dry sand with a given thickness on the isolation layer, and uniformly putting the prepared bagged dry sand on the dry sand layer; hoisting the model box, starting a centrifugal machine after the model box is fixed, and solidifying the saturated soil sample after a designed acceleration is reached; judging the stopping time through the embedded porosity water pressure sensor, stopping the machine, and hanging out the model box after the initial excess pore pressure is completely dissipated; and repeating the operation until the entire model is prepared. By adopting the preparation method, the saturation time of the soil sample can be shortened, the secondary application problem of the soil sample caused by the limit for taking soil on a field can be solved, the centrifugal solidification time can be shortened, and the solidification ending time can be accurately judged.
Owner:TONGJI UNIV +3
Rotation regulation mechanism and processing method thereof, and multi-degree-of-freedom model posture adjustment device and method
ActiveCN108458849AWeld firmlyEasy to processAerodynamic testingStationary modelMulti degree of freedom
The present invention discloses a rotation regulation mechanism and a processing method thereof, and a multi-degree-of-freedom model posture adjustment device and method. The rotation regulation mechanism comprises a tail brace rod, a brace face plate and a fixed seat. The rear end face of the brace face plate is provided with a plurality of grooves along the circumference, the front end face of the fixed seat is provided with bulging teeth cooperated with the grooves, or the rear end face of the brace face plate is provided with a plurality of bulging teeth along the circumference, and the front end face of the fixed seat is provided with grooves cooperated with the bulging teeth; a fixed model is assembled at the front end of the tail brace rod, the rear end of the tail brace rod penetrates the brace face plate and the fixed seat in order, and the fixed seat and the brace face plate are fixed at the rear end of the tail brace rod; and the included angle of axes of the front end and the rear end of the tail brace rod is the same as the angle of the required angle of attack. The rotation regulation mechanism is rotated in the fixed seat through the tail brace rod and regulates therotation angle to regulate the posture of the model at the front end of the tail brace rod and obtain flow field structure images of the model located at different measurement surfaces.
Owner:NAT UNIV OF DEFENSE TECH
Model test device for simulating jacked pile driving process
The invention relates to a model test device for simulating a jacked pile driving process. The model test device comprises a hand-operated chain-type static penetrometer, a model box, a hill-shaped plate, a pad pressing plate, an iron rod, a pressure sensor, a model pile and a positioning and guiding component, wherein the hand-operated chain-type static penetrometer is fixed at the top of the model box; the hill-shaped plate is fixed on a chain of the hand-operated chain-type static penetrometer; the pad pressing plate is padded under the hill-shaped plate; the iron rod extends into the hand-operated chain-type static penetrometer from the top, and passes through the hill-shaped plate and the pad pressing plate in sequence; the lower end of the iron rod is connected with the pressure sensor; the model pile is arranged under the pressure sensor; and the positioning and guiding component is used for fixing the model pile to ensure that the model pile vertically passes through the bottom of the hand-operated chain-type static penetrometer and extends into the model box. Compared with the prior art, the model test device has the advantages that jacked piles can continuously penetrate into soil, and the pile driving rate is controllable.
Owner:TONGJI UNIV
Airplane lift demonstration instrument for physics teaching
InactiveCN102024358AAvoid the disadvantages of not being able to get an overall understandingComplete structureEducational modelsVisibilityGeneration process
The invention relates to an airplane lift demonstration instrument for physics teaching, comprising a fairing, a fan, a bed plate, a slide rail and a model airplane. When the fan is started to generate an air flow at a larger speed, a relative motion is generated between the air flow and the wings of the stationary model airplane which is installed in the transparent fairing, an upward lift is generated because of the special shapes of the wings, the whole model airplane is about to rise upward and vertically along the slide rail, a streamer flaps along with the air flow behind an empennage, and thus, the generation process of airplane lift is demonstrated. By using the invention, the generation process of the airplane lift can be demonstrated visually and completely, visibility and visual ity vivacity are improved, and the instrument is particularly suitable for demonstration experiments in teaching.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Manufacture method of karst pile foundation anti-seismic test testing device
ActiveCN105547626AThe preparation method is simple and reliableThe overall structure is simple and reliableVibration testingPile capStationary model
The present invention relates to a manufacture method of a karst pile foundation anti-seismic test testing device. The method comprises the following steps: (1) making a die frame; (2) performing prefabrication of a karst cave model; (3) making a model box, a model pile and a pile cap; (4) filling the model box: respectively laying one layer of cystosepiment at two surfaces in the model box in the direction perpendicular to the vibration direction prior to filling, fixing the karst cave model at the middle of the model box when filling model simulation materials into a preset position, and continuously filing and compacting the model simulation materials at the circumference of the karst cave; (5) fixing the model pile: after fixing and filling the karst cave, fixing the model pile at the centre position of the top plate of the karst cave, and continuously filling the model simulation materials to allow the lower end of the model pile to be embedded at a preset depth of the model simulation materials; and (6) installing the pile cap: after drying the whole model, installing the pile cap, configured to perform upper load applying and dispose weighs, at the upper end of the model pile. The manufacture method of a karst pile foundation anti-seismic test testing device is simple and reliable, easy to realize and low in manufacture cost.
Owner:中铁十一局集团第五工程有限公司 +1
Model box device for multifunctional tunnel excavation model test
The invention discloses a model box device for a multifunctional tunnel excavation model test, and belongs to the technical field of tunnel construction tests. The panels of the front and rear walls of the model box are provided with replaceable small panels having holes. Observation windows are located on the panels of the left and right walls of the model box. A saturation system is arranged atthe bottom of the model box and consists of a vertical water supply pipe at the corner of the box, a bottom lateral water conduit and vertical water conduits. A cleaning window is installed on the observation window on one side of the model box device, and can quickly clean out soil in the model box after a test. The universal wheels and the positioning piles of the model box device can easily andquickly move the model box device to a designated test area before the test, and then the positioning piles are pulled down to fix the model box. After the test, the positioning piles are pulled up to move the model box to an appropriate position. The model box device is equipped with pressure measuring tubes on both sides of the wall to accurately measure a water level in the soil inside the model box device.
Owner:BEIJING UNIV OF TECH
Molding processing device and method thereof
The invention discloses a molding processing device, which comprises a driving mechanism, a fixed plate, a bottom plate, a flexible model and a fixed model, wherein the fixed plate is fixedly connected with the driving mechanism, and the driving mechanism is used for driving the fixed plate to move up and down; the bottom plate and the fixed plate are oppositely arranged and positioned below the fixed plate; the flexible model is fixedly connected with the fixed plate, is positioned below the fixed plate, and is used for applying molding pressure to a workpiece; the fixed model is positioned on the bottom plate, is opposite to the flexible model and is used for supporting a workpiece, and a variable forming space for accommodating the workpiece is formed between the flexible model and thefixed model. The invention also discloses a molding processing method, which is applied to the molding processing device. The invention has the advantages of solving the problems in the prior art thatthe production cost of the workpiece is high, the production size is not qualified, the size is small, and the crease is easy to generate.
Owner:东莞市轩驰智能科技有限公司
External connection fixing device for manufacturing rat spine subluxation animal model
ActiveCN101617959AComprehensive reflection of biomechanical propertiesReflect biomechanical propertiesDiagnosticsSurgerySteel platesStationary model
The invention discloses an external connection fixing device for manufacturing a rat spine subluxation animal model. In the device, the oblique part of a first pair of spinal steel plates is clamped and fixed with the fourth lumbar spinal segment of the rat; the oblique part of a second pair of spinal steel plates is clamped and fixed with the fifth lumbar spinal segment of the rat; the oblique part of a third pair of spinal steel plates is clamped and fixed with the sixth lumbar spinal segment of the rat; and straight parts of the spinal steel plates are fixed and connected together by bolts and nuts through a connecting steel plate. The device can be used for manufacturing a fixing model for preparing L4-L6 segments from the fourth to the sixth lumbar spine of the rat, and can objectively and comprehensively reflect the biomechanical characteristics of a living spine (after the spine is fixed).
Owner:SHUGUANG HOSPITAL AFFILIATED WITH SHANGHAI UNIV OF T C M
Electromagnet suspension throwing device for free flight test of hypersonic wind tunnel model
The invention discloses an electromagnet hanging and throwing device for a free flight test of a hypersonic wind tunnel model. The device comprises a mounting support plate, a mounting base and an adsorption electromagnet which are sequentially connected from top to bottom, wherein the upper end of the mounting support plate is fixed on an upper attack angle mechanism of a hypersonic wind tunnel test section attack angle mechanism, and the lower end of the adsorption electromagnet adsorbs a model. The device also comprises a driver which is fixed on the mounting support plate, the model fixingdevice is fixed on the mounting base, and the driver controls the model fixing device to clamp or release the model. During test preparation, a power supply for adsorbing the electromagnet is turnedoff, and the model fixing device clamps and fixes the model; before testing, a power supply of the adsorption electromagnet is turned on, the model fixing device is withdrawn, and the adsorption electromagnet adsorbs and fixes the model; in the test process, the electromagnet is adsorbed to power off and release the model. The device is compact in structure, reasonable in layout, good in stabilityand high in reliability, and can meet the requirement of quickly putting the model in the free flight test process of the hypersonic wind tunnel model.
Owner:中国空气动力研究与发展中心超高速空气动力研究所
Medium-long baseline RTK positioning method based on single-difference ionized layer weighting model
PendingCN111025354AIncrease the distance between stationsImprove practicalitySatellite radio beaconingStationary modelAlgorithm
The invention discloses a medium-long baseline RTK positioning method based on a single-difference ionosphere weighting model, and the method comprises the following steps: selecting different calculation bases to calculate observation equations of an ionosphere floating point model, a fixed model and a weighting model under the condition that the rank of a GNSS observation equation is deficient,and obtaining a single-difference full-rank observation equation; adopting least square variance component estimation to obtain a correct random model GNSS observation value; analyzing the relationship between ionized layer observation values extracted by an ionized layer floating point model and a medium-long baseline by using the ionized layer observation values, and constructing a random model(single-difference ionized layer weighting model) of single-difference ionized layer observation values; and in medium -long baseline RTK positioning, the model is applied to quickly solve the integerambiguity, effectively increase the inter-station distance of RTK positioning, and improve the practicability and reliability of medium-long baseline RTK positioning.
Owner:SOUTHEAST UNIV
An automatic detail analysis method for image quality objective evaluation of dead leaf image
ActiveCN109509168ATo achieve the purpose of detailed analysisImprove analysis efficiencyImage enhancementImage analysisAutomatic segmentationStationary model
The invention relates to the field of image evaluation, in particular to an automatic detail analysis method for objectively evaluating dead leaf image according to image quality, which comprises thefollowing steps: automatic segmentation of dead leaf image region based on frequency domain template; automatic segmentation of dead leaf image region based on frequency domain template. Graphic CardClassification Based on Highlight Gray Level; PSD calculation of dead leaf graph; Noise PSD Calculation Based on Multiple Regions; Detail parameter estimation. The invention achieves the purpose of analyzing the details of the batch dead leaf map and improves the analysis efficiency by automatically dividing the dead leaf map area. The method uses multi-region to calculate image noise, which is more consistent with the average noise model. Through the fitting of fixed model, the abrupt change of noise PSD caused by the change of position can be eliminated, which makes the noise PSD more accurate and improves the accuracy of detail analysis.
Owner:易诚博睿(南京)科技有限公司
Automobile reminding device and automobile reminding machine
InactiveCN108001344AImprove perceptionStrong real-timeTransmission systemsSignalling/lighting devicesStationary modelComputer terminal
The invention discloses an automobile reminding device. The automobile reminding device is characterized in that the automobile reminding device comprises an acquisition module, a reminding module, awireless communication module and a processing module, the acquisition module is connected with the wireless communication module and used for acquiring a reminding command, the wireless communicationmodule is used for conducting wireless communication with a vehicle or a mobile terminal of a driver, so that the acquisition module acquires the reminding command, the acquisition module is connected with the processing module which is used for processing the acquired reminding command and converting the reminding command into a voice command suitable for the reminding module, and the processingmodule is connected with the reminding module which is used for giving the driver a voice reminder to remind the driver of the moving state of the vehicle in the driving process. The invention further provides an automobile reminding machine. A fixed model shell is arranged outside the automobile reminding machine, and the reminding device and a power device are arranged in the automobile reminding machine. Through the voice reminder, driving safety is improved.
Owner:北海市天硌打印耗材有限公司
A physical simulation test system and method for the impact of mine earthquakes on coal mine underground reservoirs
InactiveCN103866736BHigh test accuracyReliable test resultsHydraulic modelsStationary modelHydraulic engineering
The invention discloses a physical simulation testing system and method for influences of a mine earthquake on a coal mine underground reservoir, and belongs to the technical field of mining engineering and water conservancy project cross-disciplines. The physical simulation testing method includes the steps of firstly, fixing a model box on a vibration table (2), placing model stratum materials in the model box to simulate stratums, making model coal pillars, and placing the model coal pillars into an air cushion simulation coal seam goaf area; arranging acceleration sensors, miniature pressure meters, stay wire type displacement meters and dial indicator displacement meters; measuring initial values of the sensors under the static effect, then simulating a goaf coal seam in a segmented mode, and recording data under the static effect; inputting several typical earthquake waves with different peak accelerations into the vibration table (2), and respectively recording data of the miniature pressure meters, the stay wire type displacement meters, the dial indicator displacement meters and the acceleration sensors after vibration is completed. The model profile acceleration change rule, the model surface displacement subsidence rule, the model coal seam top plate displacement change rule and the model coal pillar stress change rule after vibration are observed, and changes of the underground reservoir capacity are researched.
Owner:CHINA UNIV OF MINING & TECH (BEIJING) +1
Generalized prediction control method for electromagnetic vibroseis on complicated surface condition
ActiveCN105445783AAchieving High Precision Control ProblemsAdd constraintsSeismic energy generationStationary modelZero phase
The invention relates to a generalized prediction control method for an electromagnetic vibroseis on a complicated surface condition. On the basis of combination of a generalized prediction control method with phase pre-compensation and zero-phase filtering methods, the generalized prediction control method for an electromagnetic vibroseis in a complicated surface environment is designed. Detection on the signal peak and phase is realized by the digital way; and compared with the analog zero-crossing comparison and peak detection way, the employed way enables a high-precision control problem of the electromagnetic vibroseis on the complicated surface condition to be solved effectively. The amplitude and phase of the excitation signal of the electromagnetic vibroseis are controlled respectively and independently and a phase pre-compensation link is added, so that the control difficulty is reduced, the computation load is reduced, and the real-time performance of control is enhanced. The real-time control can be realized conveniently. Moreover, the generalized prediction control method does not rely on a fixed model and is used for realizing high-precision control of the electromagnetic vibroseis under the complicated surface, thereby improving the precision of seismic exploration of the electromagnetic vibroseis.
Owner:JILIN UNIV
Novel bridge equipment
ActiveCN107443546AAvoid deformationPrevent damageMouldsMould auxillary partsStationary modelArchitectural engineering
Owner:梓宁建设集团有限公司
Geophysical prospecting test device for different planes between holes and model
PendingCN110989029ASimple structureQuick layoutGeomodellingWater resource assessmentCantilevered beamStationary model
The invention discloses a geophysical prospecting test device for different planes between holes and a model. The device comprises a horizontal sliding groove, a test hole, a different-plane horizontal cantilever beam, a cantilever beam sliding fixing clamp, a model fixing rod, a model, a vertical positioning hammer and a medium water body, wherein the horizontal sliding groove is fixed, a left test hole and a right test hole are formed in the horizontal sliding groove; vertical positioning hammers are arranged at the bottoms of the holes, a different-plane horizontal cantilever beam and a cantilever beam sliding fixing clamp are arranged on a horizontal sliding groove between the two holes, a model fixing rod is arranged on the different-plane horizontal cantilever beam, the model can befixed to the lower end of the model fixing rod, and the medium water body needed by a test is arranged below the horizontal sliding groove. The device provided by the invention can simulate the test forms that the geologic body is not in the inter-hole plane of the actual test but is located at various positions near the two test holes, and provides real data and reliable test for the geophysicalprospecting inter-hole and geologic body different-plane model test. The device is simple in structure, rapid in arrangement and convenient to implement.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
Gesture adjusting device for model with four degrees of freedom for hypersonic speed pulse wind tunnel
ActiveCN103076152BReduce distractionsSimple structureAerodynamic testingStationary modelDegrees of freedom
Owner:NAT UNIV OF DEFENSE TECH
Wind tunnel test model assembly and disassembly assistance system
The invention discloses a wind tunnel test model assembly and disassembly assistance system comprising a movable model part and a second connecting substrate mounted thereon, a fixed model part and a first connecting substrate mounted thereon. A screw is arranged between the two connecting substrates. The thread directions at the joints of the screw and the two substrates are different so that the rotation of the screw drives the two connecting substrates to move to each other. According to the invention, the thread directions at both ends of the screw are different from each other and the thread directions of the two substrates are also different from each other so that the two substrates can be moved in the same direction or in the opposite direction when the screws are rotated in different directions. The various parts of the wind tunnel test model assembly and disassembly assistance system are simple in appearance, convenient in installation and simple in operation. An actual operation shows that the assembly and disassembly of the wind tunnel test model becomes time-saving and labor-saving and does not cause any damage to the model.
Owner:LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
Dental model generation method based on oral scan data and cbct data
ActiveCN105447908BMeet clinical requirementsCalculation speedImage enhancementImage analysisStationary modelComputer science
Owner:山东山大华天软件有限公司
Double looped fuel line for a model vehicle
Owner:TRAXXAS
System and method for expanding model driving development capability by applying plug-in
ActiveCN102033743BSolve the problem of insufficient description abilityExpandable and flexibleSpecific program execution arrangementsModel descriptionStationary model
Owner:广州翼风信息科技股份有限公司
Transverse ice load loading device and method for ice collision of engineering structure
The invention belongs to the technical field of model tests, and particularly relates to an engineering structure ice-collision transverse ice load loading device and method. Through the arrangement of the ice tank, the lifting system and the model power system, the actual condition when a structure collides ice can be well simulated, and when the ice tank is in a horizontal state, water injection ice making is performed layer by layer, so that air holes can be prevented from occurring in an ice layer; considering the real condition of collision between a structure and ice, two ends of the ice groove need to be opened, so that when the model collides to the ice surface at a certain speed, the ice surface at the other end has no constraint; different speeds are provided for the test model through the flat car, the flat car is provided with the adjustable clamp used for fixing the model, model tests of different scales can be provided, the real collision condition of a structure and ice can be well simulated, the structure is simple, cost is saved, and use is convenient.
Owner:HARBIN ENG UNIV
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