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34 results about "Seismic to simulation" patented technology
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Seismic to simulation is the process and associated techniques used to develop highly accurate static and dynamic 3D models of hydrocarbon reservoirs for use in predicting future production, placing additional wells, and evaluating alternative reservoir management scenarios. The process is successful if the model accurately reflects the original well logs, seismic data and production history.
Method and device for the generation and application of anisotropic elastic parameters
ActiveUS6901333B2Electric/magnetic detection for well-loggingSeismic signal processingSeismic waveSeismic to simulation
A method is disclosed for the generation and application of anisotropic elastic parameters. Anisotropic elastic parameters are generated such that, for selected seismic wave and anisotropy types, an approximation to the anisotropic modeling of seismic amplitudes is obtained by the equivalent isotropic modeling with the anisotropic elastic parameters. In seismic modeling, wavelet estimation, seismic interpretation, inversion and the interpretation and analysis of inversion results anisotropy are handled with isotropic methods, when earth elastic parameters utilized in these methods are replaced by the anisotropic elastic parameters.
Owner:GEOSOFTWARE CV
Globally optimized staggered mesh finite-difference forward simulation method and device
InactiveCN106842306AFlexible processControlling Absolute Spectral ErrorSeismic signal processingGlobal optimizationFrequency dispersion
The embodiment of the invention provides a globally optimized staggered mesh finite-difference forward simulation method and device. The method comprises the steps that a staggered mesh finite-difference operator is obtained; a target function is established based on a maximized norm and is calculated to obtain a staggered mesh finite-difference decentralization coefficient for optimizing the staggered mesh finite-difference operator, wherein the staggered mesh finite-difference decentralization coefficient is calculated in the maximum wave number coverage range of the optimized staggered mesh finite-difference operator and under the maximum spectrum error margin of the optimized staggered mesh finite-difference operator; the calculated staggered mesh finite-difference decentralization coefficient is adopted to optimize the spatial staggered mesh finite-difference operator, and forward simulation of seismic waves is performed. By adopting the scheme, absolute spectrum errors of the optimized staggered mesh finite-difference operator are more flexibly controlled, numerical value frequency dispersion is more effectively constrained, and the seismic simulation precision is improved.
Owner:INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
Microseismic monitoring analog system
ActiveCN103513280AImprove fidelityHigh precisionSeismology for water-loggingMonitoring systemElectric signal
The invention provides a microseismic monitoring analog system which belongs to the field of micro-vibration generation and monitoring. The microseismic monitoring analog system comprises a simulation experiment fracturing device, a microseismic signal detection device and a microseismic simulation acquisition device. The simulation experiment fracturing device is used for generating fracturing fractures and sending out a microseismic signal. The microseismic signal detection device is used for detecting the microseismic signal and converting the microseismic signal to an analog electrical signal. The microseismic simulation acquisition device is sued for controlling the simulation experiment fracturing device and processing the analog electrical signal generated by the microseismic signal detection device. According to the invention, the problem that a general microseismic simulation monitoring system has poor simulation accuracy and poor precision is solved, the field well fracturing three-dimensional microseismic monitoring process can be simulated realistically, and the system has certain instructive effect on actual microseismic exploration.
Owner:CHINA PETROLEUM & CHEM CORP +1
Method for Temporal Dispersion Correction for Seismic Simulation, RTM and FWI
ActiveUS20150355356A1Seismic signal processingSeismology for water-loggingFinite difference methodCorrection method
Method for correcting seismic simulations, RTM, and FWI for temporal dispersion due to temporal finite difference methods in which time derivatives are approximated to a specified order of approximation. Computer-simulated seismic data (51) are transformed from time domain to frequency domain (52), and then resampled using a mapping relationship that maps, in the frequency domain, to a frequency at which the time derivative exhibits no temporal dispersion (53), or to a frequency at which the time derivative exhibits a specified different order of temporal dispersion. Alternatively, measured seismic data from a field survey (61) may have temporal dispersion of a given order introduced, by a similar technique, to match the order of approximation used to generate simulated data which are to be compared to the measured data.
Owner:EXXONMOBIL UPSTREAM RES CO
Building structure model seismic absorption and isolation technology demonstrator
The invention discloses a building structure model seismic absorption and isolation technology demonstrator. The building structure model seismic absorption and isolation technology demonstrator comprises a building structure model, an upper seat plate (8) and a seismic simulation motion platform. The building structure model seismic absorption and isolation technology demonstrator is characterized in that one side of the upper seat plate (8) is fixedly connected with the building structure model, the other side of the upper seat plate (8) is fixedly connected with the seismic simulation motion platform, and two sides, which are connected with the seismic simulation motion platform, of the upper seat plate (8) are parallelly and fixedly provided with sliding blocks which are provided with sliding grooves; the seismic simulation motion platform comprises an engine base, a base shaking and driving device and a base, the engine base is provided with guide rails which are fitted with the sliding grooves, the base shaking and driving device comprises a turbine motor speed reducer (1), an output shaft (9), a flange sleeve (10), a base plate (11), a connection plate (12), a coupling (7) and an eccentric coupling (13), the output shaft (9) is in transmission connection, and the coupling (7) is internally provided with an eccentric sleeve (14). The invention aims at providing the building structure model seismic absorption and isolation technology demonstrator which is simple in structure and low in cost and is capable of directly showing all kinds of different anti-seismic phenomena showed by all kinds of seismic absorption buildings under the action of seismic waves.
Owner:ANHUI NEW HORIZON SCI EDUCATION & CULTURE CO LTD
Transformer substation composite material bushing anti-seismic limit bearing capacity parameter calibration method
ActiveCN106644330AGood effectReduce test itemsMaterial strength using steady bending forcesMaterial strength using repeated/pulsating forcesConversion coefficientsEngineering
The invention relates to a transformer substation composite material bushing anti-seismic limit bearing capacity parameter calibration method comprising the steps that seismic simulation vibration table testing and quasi-static bending resistance testing are performed on the first batch of products of composite material bushings so that anti-seismic limit bearing capacity Mse and anti-bending limit bearing capacity Mst are respectively obtained; the conversion coefficient r is calculated through the anti-seismic limit bearing capacity Mse and the anti-bending limit bearing capacity Mst; quasi-static bending resistance testing is performed on the products of the composite material bushings apart from the first batch of products so that anti-bending limit bearing capacity Mst' is obtained; and anti-seismic limit bearing capacity Mse' is obtained through the conversion coefficient r. The technical scheme has practical importance on anti-seismic performance detection of the composite material bushings.
Owner:CHINA ELECTRIC POWER RES INST +2
Vehicular earthquake simulator based on 4-RPS (Range Positioning System) space parallel mechanism
InactiveCN101819727AIngenious structureSimple structureCosmonautic condition simulationsEducational modelsEngineeringLoad carriage
The invention discloses a vehicular earthquake simulator based on a 4-RPS (Range Positioning System) space parallel mechanism. The vehicular earthquake simulator comprises a loading vehicle (1), a control console (2), a simulation room (3) and the 4-RPS space parallel mechanism (5), wherein the rear part of a driving cab of the loading vehicle (1) is provided with the control console (2); the simulation room (3) is installed on a rear vehicle body of the loading vehicle (1) through the 4-RPS space parallel mechanism (5); and the control console (2) is linked with the 4-RPS space parallel mechanism (5) to integrally form the vehicular earthquake simulator. The earthquake simulator is vehicular, simple in structure, flexible and accurate to control, and can be widely used for the floating science popularization of earthquakes in schools and communities.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY
Petrophysical parameter calculation method and system based on seismic wave simulation
The invention discloses a petrophysical parameter calculation method and system based on seismic wave simulation. The method can comprise the steps of: establishing an initial large-scale reservoir model according to core data, and thus, obtaining a large-scale reservoir model based on crack data and porosity data; establishing a small-scale grid based on the large-scale reservoir model, so that an equivalent elastic parameter model is obtained; and obtaining anisotropic parameters of a reservoir based on the equivalent elastic parameter model. According to the petrophysical parameter calculation method and system based on seismic wave simulation disclosed by the invention, petrophysical elastic parameters of a complex reservoir are obtained through a numerical value calculation method; the difficulty of obtaining cores different in geological characteristics can be avoided; and thus, small-scale non-uniform caused macroscopic physical parameter change is obtained.
Owner:CHINA PETROLEUM & CHEM CORP +1
Shaping method for experimental grotto of earthquake simulated vibration platform model
InactiveCN103234724ASimple preparation processReduce distortionVibration testingShell moldingPolyvinyl chloride
The invention relates to a shaping method for an experimental grotto of an earthquake simulated vibration platform model. The method comprises the following steps of 1), manufacturing a wood mould with a grotto size consistent to an experimental request of a model, molding, additionally hardening and weighing a polystyrene foaming grotto model according to a model size, and wrapping a layer of polyvinyl chloride plastics on the surface of the grotto model; 2), drawing a grotto profile on a side wall in a model box according to a designed position for positioning, and fixing the borders of the grotto and the model box by the adoption of square wooden strips; 3), stuffing and symmetrically ramming around the grotto, and enabling the grotto model not to generate deviation; and 4), firstly digging the middle part of a grotto cross section, and then digging the edge and corner parts by utilizing the protection of plastic cloth on the outer layer of the model. By the adoption of the method, grottos with different shapes and sizes can be high-efficiently, simply and conveniently manufactured in model experiments, the accurate positioning of a grotto space is realized, the digging method is simple and convenient, and interference with model materials surrounding the grotto during the digging process is effectively reduced.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
Seismic simulation shaking table test control method for cross-fault seismic waves
InactiveCN109186910AAvoid lossReflect relative displacementVibration testingSeismic migrationControl system
The invention discloses a seismic simulation shaking table test control method for cross-fault seismic waves. A power part and a pseudo-static part of cross-fault seismic waves are separated through afiltering method, high-frequency acceleration is input into a system in order to obtain a high-frequency displacement driving signal, and a low-frequency pseudo-static displacement time history is superimposed on the basis, so that a wide-frequency displacement driving signal is obtained and is input into the shaking table control system, a shaking table is controlled, and shaking table test simulation of the cross-section seismic waves is completed. According to the methods, the requirements of the two aspects of the acceleration and the pseudo-static displacement of the cross-fault seismicwaves are both considered, and the seismic simulation shaking table for the cross-fault seismic waves can be accurately reproduced.
Owner:SOUTHEAST UNIV
Method for acquiring seismic wave path through wave equation
ActiveCN104459780AAccurately obtainedOvercome inherent shortcomingsSeismic signal processingWave equationHigh frequency approximation
The invention relates to a method for acquiring a seismic wave path through a wave equation. The method comprises the following steps that firstly, an initial parameter is given; secondly, a complex and non-uniform underground medium model to be explored is divided into mesh-shaped grid points; thirdly, a seismic source is placed in the seismic source point S of the model, and seismic wave fields in certain frequencies in the frequency band to be solved in the whole space are calculated point by point; fourthly, the seismic source is arranged at the receiving point R of the model, and the seismic wave fields in certain frequencies in the frequency band to be solved in the whole space are calculated point by point; fifthly, in the frequency domain, the calculated seismic wave fields at the seismic source point S and the receiving point R under the same frequency are multiplied and added to the multiplying result obtained under the previous frequency; sixthly, frequency circulation is carried out in the frequency band to be solved, and the seismic wave path is stored if the frequency circulation is finished. According to the method, the high-frequency approximation and multi-path problems of a traditional method are avoided, and the method can be widely applied to seismic simulation, seismic lighting and seismic offset technology in a complex geologic structure of oil exploration.
Owner:INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
Parallel connection type six-dimensional output and thirty-two input redundancy fault-tolerant drive simulator
InactiveCN103247217AReduced Power RequirementsAchievable high powerEducational modelsConnection typeElectric machine
The invention discloses a parallel connection type six-dimensional output and thirty-two input redundancy fault-tolerant drive simulator. The simulator comprises a working table and three mutually perpendicular working panels, as well as four four-input and single-output redundancy drive units and two eight-input and single-output redundancy drive units, wherein one end of each four-input and single-output redundancy drive unit is fixed on the working panels, and the other end of each four-input and single-output redundancy drive unit is hinged to the working table; and one end of each eight-input and single-output redundancy drive unit is fixed on the working panels, and the other end of each eight-input and single-output redundancy drive unit is hinged to the working table. The whole simulation provided by the invention is in a 1-2-3 configuration, and redundant motor input is adopted to an appropriate part of a branch chain, so that the convenience in controlling and requirements of input power can be considered; and the simulator adopts a simple principle, is flexible to control, long in system service life, high in accessible power and good in cooperativeness, and can excellently meet use requirements of heavy mechanical equipment such as a sea wave simulation system, an earthquake simulator, a nuclear power station and the like.
Owner:SHANGHAI JIAO TONG UNIV
Artificial seismic simulation method for aseismic design of hydraulic structures based on hydropower projects
InactiveCN109002678AImprove convergence accuracyOvercoming the Limitation of Poor ConvergenceGeometric CADDesign optimisation/simulationTime domainCorrelation coefficient
The invention discloses an artificial seismic simulation method based on the aseismic design of a hydraulic structures of hydropower projects, which comprises the following steps: selecting a standarddesign response spectrum as a target spectrum, discretizing the target spectrum, generating an initial seismic wave by a frequency domain method, performing iterative correction on the initial seismic wave by a time domain method, and performing iterative correction on the initial seismic wave by a frequency domain-time domain hybrid iterative method to determine whether the accuracy is satisfied, to determine whether three artificial seismic waves are generated, and to determine correlation coefficients. According to the requirements of the code for seismic design of hydraulic structures ofhydropower projects and the seismic design of hydraulic structures of hydropower projects, the artificial seismic simulation method based on the seismic design of hydraulic structures of hydropower projects is completed in this scheme, which has strong pertinence. The invention overcomes the limitation of poor convergence of the existing time domain method, and the artificial seismic wave generated by the invention has good convergence and high convergence precision.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Seismic simulator for teaching
The invention discloses a seismic simulator for teaching, which comprises a shocking module formed by a plurality of shocking blocks. The surface of the shocking module is provided with a simulated ground surface; the simulated ground surface is provided with simulated natural substances and / or simulated manmade substances; at least one longitudinal oil cylinder which can drive the corresponding shocking block to shock longitudinally is connected below each shocking block; each longitudinal oil cylinder is arranged on an oil cylinder carrying frame; each oil cylinder carrying frame is connected with a transverse oil cylinder which can drive the oil cylinder carrying frame to transversely shock; the oil cylinder carrying frame is arranged on a transverse sliding rail in a sliding mode; boththe transverse oil cylinder and the longitudinal oil cylinder are connected with a control chop; and the control chip is connected with a driving switch and a driving power supply. Longitudinal wavesof an earthquake are simulated through the longitudinal oil cylinder, transverse waves of the earthquake are simulated through the transverse oil cylinder, the simulation is intuitive and vivid, thestructure is simple, and the cost is low.
Owner:浙江德清爱特电子科技有限公司
Black hole boundary conditions
ActiveUS20160238728A1Prevent any distortion to the resulting image dataImage enhancementImage analysisSeismic surveyImaging technique
The present disclosure provides a method for modeling and analyzing the impact of different seismic surveying and imaging techniques on a subterranean formation by creating a black hole boundary condition around a particular region in the formation where at least one of the physical characteristics is unclear and may distort the seismic modeling results. The black hole boundary conditions will eliminate any energy wave that enters, exit or reflect off the region so as to avoid any image distortion caused by this region. The resulted image data is compared with the image data obtained without using the black hole boundary conditions to determine the impact of this region, and proper correction can be made to more precisely and accurately model the formation
Owner:CONOCOPHILLIPS CO
Parallel vector computing method of seismic acoustic wave equation
ActiveCN109490948AHigh precisionSave computational instructionsSeismic signal processingWave equationEarth exploration
The invention belongs to the field of earth exploration and information technology, and particularly relates to a parallel vector computing method of seismic acoustic wave equation, which includes: (1) seismic simulation; simulating the propagation process of the seismic wave field in underground media by computers and numerical method, which includes the following steps: (2) calculation of parallel acceleration; parallelization requirement analysis of seismic simulation projects, replacement of the special parts, which are the most time-consuming in the serial code and can be replaced by vector calculation, by AVX instruction set parallel code. The parallel vector computing method of seismic acoustic wave equation can not only simulate the seismic response characteristics and variation rules of high density acquisition, but also greatly save calculation instructions, and finally realize the ability of about 3-7 times secondary acceleration ratio.
Owner:SOUTHWEST PETROLEUM UNIV
Seismic shaking table data collection system based on Zigbee
PendingCN106679921AReduce work intensityReduce workloadTransmission systemsVibration testingData acquisitionWorkload
Owner:TIANJIN CHENGJIAN UNIV
Quakeproof training and seismic modeling experience cabin
InactiveCN105894934AReduce lossesRaise awareness of shock absorbersEducational modelsVibration controlDisplay device
The invention discloses a quakeproof training and seismic modeling experience cabin. The quakeproof training and seismic modeling experience cabin comprises a motion platform, wherein the motion platform is provided with an experience cabin; a specific scene is set in the experience cabin; furthermore, the experience cabin is internally provided with a display device and a voice frequency device; the bottom of the motion platform is connected with an earthquake simulator; the earthquake simulator comprises an X-direction vibration control part, a Y-direction vibration control part and a Z-direction vibration control part; the X-direction vibration control part is controlled by a pair of X-direction servo motors; the Y-direction vibration control part is controlled by a pair of Y-direction servo motors; the Z-direction vibration control part is controlled by a pair of Z-direction servo motors. According to the quakeproof training and seismic modeling experience cabin disclosed by the invention, the experience cabin is arranged on the earthquake simulator, the specific scene of the experience cabin can be set according to requirements, and the earthquake prevention and avoidance consciousness of experiencers can be really improved from the simulation of seismic reality scenes, so that the self-rescue knowledge of earthquake prevention and avoidance is added, and loss of earthquakes for lives and property is reduced.
Owner:TAIZHOU WEIER INFORMATION TECH CO LTD
Method for temporal dispersion correction for seismic simulation, RTM and FWI
Method for correcting seismic simulations, RTM, and FWI for temporal dispersion due to temporal finite difference methods in which time derivatives are approximated to a specified order of approximation. Computer-simulated seismic data (51) are transformed from time domain to frequency domain (52), and then resampled using a mapping relationship that maps, in the frequency domain, to a frequency at which the time derivative exhibits no temporal dispersion (53), or to a frequency at which the time derivative exhibits a specified different order of temporal dispersion. Alternatively, measured seismic data from a field survey (61) may have temporal dispersion of a given order introduced, by a similar technique, to match the order of approximation used to generate simulated data which are to be compared to the measured data.
Owner:EXXONMOBIL UPSTREAM RES CO
Kindergarten teaching seismic simulation device for facilitating splicing and storage
The invention discloses a kindergarten teaching seismic simulation device for facilitating splicing and storage, and relates to the technical field of seismic simulation. The device comprises a simulation platform, a storage box, a support plate and four supporting components, wherein the support plate and the simulation platform are all positioned in the storage box; one surface of the simulationplatform is provided with an analog component; one inner wall of the storage box is fixed with a first electric push rod; one end of the first electric push rod is fixedly connected with a surface ofthe support plate; an infrared receiver is fixed on the pair of the opposite inner walls of the storage box, six strong springs are fixed on one surface of the support plate, one end of the strong spring is fixedly connected with a surface of the simulation platform. According to the invention, with the adoption of the first electric push rod, the supporting plate and the simulation platform canbe driven to be accommodated in the storage box or exposed outside the storage box, the storage simulation component can be placed through the placing shell, the simulation platform can be supported by the support components, which solves the problem that the existing seismic simulation device is not convenient to store and springs are easily damaged in storage.
Owner:FOSHAN UNIVERSITY
Seismic modeling device
PendingCN108597343ASimple structureRealistic earthquake simulationCosmonautic condition simulationsEducational modelsLive actionEngineering
The invention relates to the field of seismic experience, in particular to a seismic modeling device, comprising a seismic platform, four sides and a top wall. The four sides and the top wall encircleto form a closed space on the seismic platform. The seismic platform comprises a rectangular frame and vertical lifting devices mounted at four corners of the rectangular frame, and further comprisesa platform body, a first cross beam and two first motors, wherein the platform body is arranged in the rectangular frame and is connected with the left and right sides of the rectangular frame through springs, the first cross beam is mounted on the lower portion of the two sides of the platform body and parallel to the left and right edges of the rectangular frame, and the two first motors are connected with the front and back ends of the first cross beam. The seismic modeling device is further provided with a scene simulation escape device. The seismic modeling device is of skillful design and simple arrangement and has realistic seismic simulation effect; the scene simulation escape device can indicate and correct escape positions in different scenes for experiencers, and accordingly the seismic modeling device brings live-action experience and has high education function to users, and has high potential market value.
Owner:QINGDAO HUAKAI OCEAN SCI & TECH
Thin reservoir stratum seismic forward modeling simulation method based on bivariant geologic modeling technology
ActiveCN106324668ADescribe wellWell described researchSeismic signal processingSeismic migrationSimulation based
The invention proposes a thin reservoir stratum seismic forward modeling simulation method based on the bivariant geologic modeling technology, and the method comprises the steps: (1), setting the basic size of a main model; (2), dividing a target layer region and a non-target layer region on the main model; (3), designing a target layer model and a non-target layer model with the features of a thin reservoir stratum (2m or less) under different proportions; (4), discretizing a model through employing the variable sampling technology, and obtaining the discrete data of the model; (5), carrying out the forward modeling simulation based on the obtained discrete data through employing a forward modeling algorithm, and generating a synthesized seismic record. The method is advantageous in that the method can achieve the construction of the thin reservoir stratum (2m or less), can carry out the seismic forward modeling simulation of the thin reservoir stratum (2m or less), and enables the achievement of seismic simulation to be used for solving an actual problem that the recognition of the thin reservoir stratum is difficult better.
Owner:GUANGDONG UNIV OF PETROCHEMICAL TECH
Earthquake simulation test device and method based on electro-hydraulic servo system
ActiveCN107121251BWeight increaseImprove displacement abilityVibration testingSupporting systemStress concentration
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
A calibration method for the seismic ultimate bearing capacity parameters of composite casings in substations
ActiveCN106644330BReduce test itemsGuaranteed validityMaterial strength using steady bending forcesMaterial strength using repeated/pulsating forcesConversion coefficientsEngineering
Owner:CHINA ELECTRIC POWER RES INST +2
A globally optimized staggered grid finite difference forward modeling method and device
InactiveCN106842306BFlexible processControlling Absolute Spectral ErrorSeismic signal processingModel methodFrequency dispersion
The embodiment of the invention provides a globally optimized staggered mesh finite-difference forward simulation method and device. The method comprises the steps that a staggered mesh finite-difference operator is obtained; a target function is established based on a maximized norm and is calculated to obtain a staggered mesh finite-difference decentralization coefficient for optimizing the staggered mesh finite-difference operator, wherein the staggered mesh finite-difference decentralization coefficient is calculated in the maximum wave number coverage range of the optimized staggered mesh finite-difference operator and under the maximum spectrum error margin of the optimized staggered mesh finite-difference operator; the calculated staggered mesh finite-difference decentralization coefficient is adopted to optimize the spatial staggered mesh finite-difference operator, and forward simulation of seismic waves is performed. By adopting the scheme, absolute spectrum errors of the optimized staggered mesh finite-difference operator are more flexibly controlled, numerical value frequency dispersion is more effectively constrained, and the seismic simulation precision is improved.
Owner:INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
Simulation device and simulation method of groundwater seepage in near-coastal zone under earthquake-tide action
ActiveCN108198498BAccurate identification of coseismic response characteristicsCosmonautic condition simulationsEducational modelsEngineeringCoastal zone
The invention relates to a simulating device and a simulating method for groundwater seepage near a coastal zone under the effects of earthquake and sea tide. The device is mainly composed of a constant water head water supply device, a seepage tank, a tide generator, a salt water tank, an earthquake simulating shaking table and simulation well steel tubes, wherein the tank body can be divided into a fresh water area, a water-containing medium area and a seawater area along the length, for the water-containing medium area, water and sand are added for constructing a pressure-bearing water-containing layer, the medium of a water-resisting layer is clay, and in the salt water tank, tap water in which NaCl and carmine pigment are added is used for simulating colored seawater. According to themethod provided by the invention, the tap water is injected into the fresh water area through a constant water head and is injected into the seawater area through the tide generator; when the seawater wedge is stable, the frequency, acceleration, waveform and principal earthquake time are set on the earthquake simulating shaking table, vibration waves are loaded for starting a vibration seepage experiment, monitoring data is collected in real time, and the change process of the fresh-water-salt water interface and the water level of a pressure measuring pipe is observed. With the device and the method provided by the invention, the objective simulation and representation for the dynamic change of groundwater under the effects of earthquake waves, sea tide and the water-containing medium can be realized.
Owner:INST OF DISASTER PREVENTION
A Microseismic Monitoring Simulation System
ActiveCN103513280BImprove fidelityHigh precisionSeismology for water-loggingMonitoring systemSeismic to simulation
Owner:CHINA PETROLEUM & CHEM CORP +1
Seismic simulation shaking table control method used for compensating interaction between test piece and table top
InactiveCN101813552BImprove control stabilityAvoid the phenomenon of destructionVibration testingEngineeringSeismic to simulation
The invention relates to a seismic simulation shaking table control method used for compensating interaction between a test piece and a table top and improving the reproduction accuracy of seismic record. The control method is characterized in that control parameters of the shaking table are designed by taking all load forms as zero load forms based on the condition that the control parameters ofthe shaking table are designed by taking the test piece as rigid load; and the counter force generated by the test piece is utilized for compensating the interaction between the test piece and the table top in real time. Compared with a conventional control method, the method has the advantages of improving the stability of the system control to enable the seismic simulation shaking table to be more easily controlled; widening the system controllable frequency band to enable the test range of the shaking table to be wider; and improving the reproduction accuracy of the seismic record to enable the seismic simulation shaking table test to be more scientific.
Owner:BEIJING UNIV OF TECH
Vehicular earthquake simulator based on 4-RPS (Range Positioning System) space parallel mechanism
InactiveCN101819727BIngenious structureSimple structureCosmonautic condition simulationsEducational modelsEngineeringLoad carriage
The invention discloses a vehicular earthquake simulator based on a 4-RPS (Range Positioning System) space parallel mechanism. The vehicular earthquake simulator comprises a loading vehicle (1), a control console (2), a simulation room (3) and the 4-RPS space parallel mechanism (5), wherein the rear part of a driving cab of the loading vehicle (1) is provided with the control console (2); the simulation room (3) is installed on a rear vehicle body of the loading vehicle (1) through the 4-RPS space parallel mechanism (5); and the control console (2) is linked with the 4-RPS space parallel mechanism (5) to integrally form the vehicular earthquake simulator. The earthquake simulator is vehicular, simple in structure, flexible and accurate to control, and can be widely used for the floating science popularization of earthquakes in schools and communities.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY
Method for testing low-cycle repeated load anti-seismic performance of light steel frame composite wall structure
The invention discloses a method for testing the low-cycle repeated load anti-seismic performance of a light steel frame composite wall structure. The method comprises the following steps: preparing aseismic simulation vibration table and a plurality of assembled light steel frame composite wall structure full-scale test pieces, wherein the test pieces have the same structural characteristics anddifferent test pieces have single distinguishing characteristics; arranging a stress strain measuring unit at the same position of each test piece; installing one test piece on the seismic simulationvibration table, setting test conditions which are frequency, amplitude and waveform of the seismic simulation vibration table, applying multiple times of reciprocating cyclic loads to the test pieceto make the test piece repeatedly shake in the front direction and the back direction and form vibration, and recording stress and deformation conditions of the test piece; carrying out seismic performance testing on the other test pieces one by one under the same testing condition, and recording the stress and strain conditions of each test piece; by testing and analyzing the dynamic response characteristics of the test pieces, comparing the seismic performance of the test pieces.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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