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443 results about "Physical field" patented technology
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For webmasters: physical field. physical field, n in energy medicine, one of the three etheric levels of the human energy field. This layer embodies the sense of physical sensation, vitality of the body, and the autonomic functioning of cells, tissues, and organs and is found closest to the skin surface.
Virtual field controller
ActiveUS20050256591A1Readily apparentSafety arrangmentsComputer controlComputer hardwareVirtual field
An arrangement includes a first computer having a first operating system, the first computer having a memory containing software derived from field controller software executed on physical field controllers of a building control system. The physical field controllers employ a second operating system. The software further contains an operating system abstraction layer operable to convert at least some operating system calls of the field controller software to corresponding calls in the first operating system.
Owner:SIEMENS IND INC
Method and apparatus for simulating physical fields
InactiveUS6665849B2Less storage spaceAvoid excessive intensityDetecting faulty computer hardwareAnalogue computers for chemical processesPhysical fieldEngineering
In order to design on-chip interconnect structures in a flexible way, a CAD approach is advocated in three dimensions, describing high frequency effects such as current redistribution due to the skin-effect or eddy currents and the occurrence of slow-wave modes. The electromagnetic environment is described by a scalar electric potential and a magnetic vector potential. These potentials are not uniquely defined, and in order to obtain a consistent discretization scheme, a gauge-transformation field is introduced. The displacement current is taken into account to describe current redistribution and a small-signal analysis solution scheme is proposed based upon existing techniques for static fields in semiconductors. In addition methods and apparatus for refining the mesh used for numerical analysis is described.
Owner:INTERUNIVERSITAIR MICRO ELECTRONICS CENT (IMEC VZW)
Material in-situ detection device and method under multi-load multi-physical field coupling service conditions
ActiveCN105223076ANovel structureCompact layoutMaterial strength using tensile/compressive forcesMaterial strength using steady bending forcesPhysical fieldScientific instrument
The invention relates to a material in-situ detection device and method under multi-load multi-physical-field coupling service conditions, and belongs to the field of precise scientific instruments. The material in-situ detection device is composed of a precise six-degrees-of-freedom composite load loading module, a precise torsion module, a precise indentation module, a clamp module and a control module which work together to complete a composite-load multi-physical-field coupling experiment, a digital speckle strain measurement and infrared thermal imaging module and a microscope observation module are integrated, and in-situ observation and quantitative characterization are carried out on material deformation behaviors and damage mechanism phenomena in a composite-load multi-physical-field loading process. The device and the method have the advantages that the composite-load loading can be realized, and a novel loading method such as 'cantilever type pure bending, cantilever type tensile / compression-torsion, and cantilever type bending-torsion' is carried out. Silicon nitride ceramic heating sheets, Peltier tiles and current loading are used for achieving simulation of cold / hot-electricity and other multiple physical fields, and an improvement innovative experimental testing method is provided for material micromechanical property tests close to the serving conditions.
Owner:JILIN UNIV
In-situ testing machine for microcosmic performance of multi-load and multi-physical-field coupling material
ActiveCN103499483AEfficient combinationSimulate micromechanical propertiesMaterial strength using tensile/compressive forcesInvestigating material hardnessMicro imagingPhysical field
The invention relates to an in-situ testing machine for the microcosmic performance for a multi-load and multi-physical-field coupling material, belonging to the technical field of material mechanics property testing. The in-situ testing machine comprises a micro / nanometer-precision driving / transmission module, a 'mechanical-electric-thermal-magnetic' loading module and a control module, is integrated with a high-field-depth 3D (three dimensional) micro-imaging lens, a Raman spectrometer and a visual in-situ monitoring module and is capable of dynamically monitoring deformational behaviors, damage mechanisms and performance evolvement rules of the material in a loading process. The in-situ testing machine has the advantages that the whole structure is compact, and the space layout is saved; the loads of four manners including 'stretching / compression-torsion-bending-indentation' can be singly loaded, two or more loads can be combined to be loaded as well, and externally-applied physical fields such as heat, electricity, magnetism and the like can be combined to maximally simulate the real working conditions of components of the material, and effective measures and methods are provided for testing the micromechanical performance of the material under a service-approximating condition.
Owner:JILIN UNIV
Load-type monoatomic catalyst and preparation method thereof
ActiveCN109225257AIncrease profitReduce dosageMetal/metal-oxides/metal-hydroxide catalystsElectricityPhysical field
The invention provides a load-type monoatomic catalyst. The catalyst is formed by uniformly loading monodispersed metal atoms on the surface of a nano substrate material. A preparation method thereofcomprises the following steps: in an electrolyte solution containing metal salt, performing electrochemical deposition by using a three-electrode system, using a glassy carbon electrode loaded with the nano substrate material as a working electrode, using a graphite rod as a counter electrode, using a silver / silver chloride electrode as a reference electrode, performing linear volt-ampere scanning, enabling the metal atoms to be monodispersely and uniformly deposited on the nano substrate material, to obtain the load-type monoatomic catalyst. The load-type monoatomic catalyst is capable of, based on electro-deposition, constructing a monoatomic structure, through an electro-deposition method, rapidly, efficiently, and controllably depositing single atoms, and realizing deposition of positive and negative electrodes, and the obtained load-type monoatomic catalyst has important significance to a general application in the catalytic and particle physical field.
Owner:INST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA
Testing device and method for simulating collapse of tunnel surrounding rock under conditions of rainfall and underground water seepage
ActiveCN104330533ARealize simulationAdjustable rainfallEducational modelsMaterial analysisPhysical fieldModel testing
The invention discloses a testing device and a testing device method for simulating collapse of tunnel surrounding rock under conditions of rainfall and underground water seepage. The testing device comprises a model testing box, a rainfall adjustable simulating system, an underground water seepage simulating system, an underground water supplying system, a water content testing system, a stress monitoring system, a digital radiography noncontact measuring system and an optical fiber bragg grating displacement monitoring system. By simulating a progressive failure process of tunnel weak broken surrounding rock under the action of seepage of surface water and underground water, mechanical behaviors of crushing the surrounding rock under different rainfall conditions and different underground water seepage path conditions are quantitatively researched. By obtaining multiple-physical field information in a tunnel surrounding rock collapse process, multi-information features in different evolutionary phases and internal links of information of all fields of the collapse are analyzed, a progressive failure process and fracture morphology and ranges of the tunnel weak broken surrounding rock under different factors are determined, and the effective basis is provided for disclosing a progressive failure principle and a dynamic pressure arch effect of the weak broken surrounding rock under conditions of rainfall and underground water seepage.
Owner:CHINA UNIV OF MINING & TECH
Combined load mode mechanical-electrical and thermal-magnetic coupling material performance in-situ test instrument and method
ActiveCN105628487ARich physical performance parametersRich performance parametersMaterial strength using tensile/compressive forcesMaterial strength using repeated/pulsating forcesCouplingPhysical field
The invention relates to a combined load mode mechanical-electrical and thermal-magnetic coupling material performance in-situ test instrument and method, and belongs to the field of precise scientific instruments. The test instrument comprises three parts: namely a combined load-multi-physical field loading test platform, an in-situ monitoring platform and a vibration-isolating base, wherein the vibration-isolating base is mainly used for supporting the combined load-multi-physical field loading test platform and the in-situ monitoring platform, and provides a positioning service for installation of the platforms and effective vibration isolating treatment for various precise driving loading elements, detecting elements and in-situ monitoring elements; the in-situ monitoring platform realizes real-time dynamic and in-situ monitoring on micro deformation, injury mechanism, microstructure changes and property evolution of a material sample under the combined load condition by precisely adjusting the position and posture of various monitoring modules. The combined load mode mechanical-electrical and thermal-magnetic coupling material performance in-situ test instrument has the following advantages: the structure is miniaturized and lightened in weight, and the instrument body can be placed in an optionally equipped vacuum cavity, so that testing environments like low pressure, vacuum and inert gases can be provided for the material sample to be tested, and the practicability is high.
Owner:JILIN UNIV
Three-dimensional structure sound source radiation sound field forecast method under shallow sea channel
ActiveCN107576388AAdaptableImprove accuracySubsonic/sonic/ultrasonic wave measurementSeismology for water-covered areasMultiphysics couplingSurface ocean
The invention discloses a three-dimensional structure sound source radiation sound field forecast method under the shallow sea channel and belongs to the sound source radiation sound field forecast field. The method is characterized in that firstly, a structure sound radiation multi-physical field coupling model under the shallow sea channel is established, the sea sound propagation theory is selected according to analysis frequency range, calculation distance and shallow sea environment factors to establish a two-dimensional axisymmetric channel transmission function G, through orientation coupling solution development, a channel three-dimensional sound field transmission function is acquired, secondly, the shallow sea channel multi-boundary sound field coupling calculation theory is employed to establish a multi-physical field coupling model, a structure sound source surface speed U under the shallow sea channel under the action of multi-boundary influence is acquired through calculation, and lastly, the Fourier wave superposition method theory is utilized to forecast the sound field information P of a structure sound source at any field point under the channel is forecasted. Themethod is advantaged in that multiple bottleneck problems of high computational complexity, multiple coupling physical fields and complex channel environments existing during researching three-dimensional elastic structure sound source radiation sound field characteristics under the complex shallow sea channel in the prior art are effectively solved.
Owner:HARBIN ENG UNIV
Intelligent NC super high pressure true 3D uneven loading and unloading and pressure stabilizing model test system
ActiveCN108124460AHigh loading accuracyLong stabilization timeUnderground chambersMaterial strength using tensile/compressive forcesUltra high pressurePilot system
Owner:SHANDONG UNIV
Natural gas hydrate exploitation multi-physical field evolution simulation test device and method
ActiveCN105571647AAccurate and constant outlet pressureRealize real-time measurementMeasurement devicesVolume variationGeneration rate
The invention discloses a natural gas hydrate exploitation multi-physical field evolution simulation test device. The natural gas hydrate exploitation multi-physical field evolution simulation test device comprises a reactor; the reactor is arranged in a temperature control module; the reactor is connected with a liquid supply module, a gas supply module, a back pressure control module, a confining pressure loading module and a data measurement and acquisition module. The invention also discloses a natural gas hydrate exploitation multi-physical field evolution simulation test method. According to the method, an electrical resistance tomography technology is adopted to perform real-time measurement on material contents in sediments especially the saturation of hydrates; real-time measurement is performed on the volume change of the sediments based on the volume change of confining pressure fluid; and the experimental simulation work of temperature field, flow field and displacement field evolutionary processes in hydrate depressurization exploitation can be realized based on experimental data such as temperature, pore pressure and flow rate (gas generation and water generation rate).
Owner:QINGDAO INST OF MARINE GEOLOGY
Method and apparatus for simulating physical fields
InactiveUS20020042698A1Simple structureLess storage spaceDetecting faulty computer hardwareAnalogue computers for chemical processesPhysical fieldEngineering
In order to design on-chip interconnect structures in a flexible way, a CAD approach is advocated in three dimensions, describing high frequency effects such as current redistribution due to the skin-effect or eddy currents and the occurrence of slow-wave modes. The electromagnetic environment is described by a scalar electric potential and a magnetic vector potential. These potentials are not uniquely defined, and in order to obtain a consistent discretization scheme, a gauge-transformation field is introduced. The displacement current is taken into account to describe current redistribution and a small-signal analysis solution scheme is proposed based upon existing techniques for static fields in semiconductors. In addition methods and apparatus for refining the mesh used for numerical analysis is described.
Owner:INTERUNIVERSITAIR MICRO ELECTRONICS CENT (IMEC VZW)
Object relational mapping method and device as well as processor
ActiveCN104899225ARealize dynamic assemblyEasy maintenanceSpecial data processing applicationsHard codingMultiplexing
The present invention discloses an object relational mapping method and device as well as a processor. According to the method, when data in a database table are required to be queried, an alias name of the database table corresponding to a current query and a physical field of the database table are determined according to received database operation statements and query parameters, and a corresponding table connection relationship is constructed; and then corresponding object data are returned according to received object operation data and a preset mapping relationship. The method achieves object relational mapping, can be applied to a complicated data model and is used for solving the problem of confused coding in the existing hard coding technology; in addition, according to the object relational mapping method disclosed by the present invention, current query conditions and table connection relationships can be assembled according to object data and mapping files, so that the flexibility is high, and the degree of multiplexing is high.
Owner:北京国资融资租赁股份有限公司
Preparation method of cold soluble instant health food of grains, vegetables and fruits
ActiveCN101926463AWide variety of sourcesImprove immunityFood preparationBeta-CaroteneAdditive ingredient
The invention provides to a preparation method of cold soluble instant health food of grains, vegetables and fruits and relates to a novel preparation method of food with complete nutrients and high bioavailability, belonging to the technical field of modern nutritious food preparation. The method comprises the following steps: carrying out nonthermal physical field energy conservation dehydrateddesiccation on fresh plant source food raw materials, namely grains, vegetables and fruits which are unpolluted, green and safe; smashing the raw materials to 80-120 meshes; evenly compounding and mixing micronutrient functional factors with 10%-60% of corn, 10%-50% of vegetables and 10%-40% of fruits in the weight ratio, so as to prepare the all natural nutritious food of grains, vegetables and fruits which can be taken by mixed with cool boiling water. The invention mutually mixes the different grains, vegetables and fruits which are processed, so that the cold soluble instant product contains complete nutrients such as dietary fiber, protein, fat, vitamine, mineral composition, beta-carotene, flavone, natural coloring matter and the like, has high utilization ratio of nutritious components and good taste, and belongs to a novel health food.
Owner:JIANGNAN UNIV +1
Strong laser driven explosion and impact effect test platform
ActiveCN102778257ARealize functionIncrease opennessMeasurement devicesPhysical fieldImage resolution
The invention discloses a strong laser driven explosion and impact effect test platform which comprises a drive system, testing environments, a measurement system and a control system, wherein the control system is respectively connected with the drive system, the test environments and the measurement system. Through an integrated design and development of different test environments, the test platform realizes multiple laser driven explosion and impact functions and has openness; and meanwhile, through coordination and cooperation of multiple high-speed and high-resolution rate testing means, a plurality of physical fields (speed, pressure and image) are measured in real time, and a laser drive explosion and impact test process can be more completely characterized.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI
Continuous casting method of large-length hollow ductile cast iron sections and method for arcing hollow ductile cast iron sections after local continuous heating
InactiveCN101638748ASolve technical problems that are difficult to produceCorrosion resistancePhysical fieldVolumetric Mass Density
The invention relates to a continuous casting method of large-length hollow ductile cast iron sections and a method for arcing the hollow ductile cast iron sections after local continuous heating. Thesection comprises the following components by weight percent: 3.4-3.6% of C, 2.8-3.2% of Si, 0.40-0.60% of Mn, S less than or equal to 0.1%, P less than or equal to 0.1% and the balance Fe. Molten iron is subjected to shaping and continuous casting under multiple physical fields to become the hollow sections. The molten iron in heat preserving furnaces is separated from dross, sand and gas in twoways, thus completely solving the defects of dross inclusion, sand inclusion and pores; liquid column cores in a crystallizer carry out continual feeding on condensing tube shells, thus eliminating the possibility of shrinkage porosity inside the tube walls, obtaining highly dense cast structure of (ferritic matrix+spherical graphite) and eliminating crack initiation origins in thermoplastic deformation to be carried out later. The intense cooling speed in the crystallizer enables the volumes of eutectic cells to be only 1 / 15-1 / 25 of the volumes of traditional sand mould casts. The density ofthe graphite balls reaches around 500 / mm<2>. In plastic deformation, the micro slip orientation is increased and the ductility is enhanced, therefore, the hollow cast iron sections can be arced by medium frequency induction heating and bending.
Owner:SHAN XI TONGXIN LIANZHU PIPE IND
Unsteady cavitation flow-excited vibration multi-field synchronous measurement system for water tunnel experiment
InactiveCN107907296ASimultaneous measurement is preciseSynchronous Analysis FeaturesHydrodynamic testingPhysical fieldMulti field
The invention relates to an unsteady cavitation flow-excited vibration multi-field synchronous measurement system for a water tunnel experiment and belongs to the ship and underwater vehicle engineering and water conservancy and hydropower engineering technology field. The system is composed of an experimental section, an experimental model, a high-speed camera, a synchronous trigger switch, a laser Doppler vibration meter, a data acquisition instrument, a data processing system / computer and display assembly and a light source. According to the system of the invention, rising edge voltage signals are generated through the synchronous trigger switch, trigger signals are controlled by using the voltage signals, and therefore, the signal acquisition starting instructions of the high-speed camera and the laser Doppler vibration meter are controlled quantitatively and precisely, and the quantitative and accurate synchronous measurement of an unsteady cavitation flow field and a structure field can be realized; and data obtained through multi-physical field synchronous acquisition are subjected to preprocessing, time-domain analysis, frequency-domain analysis and time-frequency analysis,and therefore, reliable analysis experimental data can be provided for the study of fluid-structure interaction characteristics.
Owner:TSINGHUA UNIV
Method for repairing micro-defects inside metal materials
The invention discloses a method for repairing micro-defects inside metal materials which can repair the micro-defects inside the metal materials so as to improve the performance of the metal materials without affecting the thermal deformation of the metal materials. The method comprises the following steps: putting the metal material to be repaired in an external physical field excitation device capable of generating a pulsed magnetic field and a pulsed electric field, and selecting the appropriate field treatment process for processing according to the magnetic property of the metal material and the configuration type of the microscopic defect inside the substrate. In this way, the in-situ repair of internal defects of metal materials can be realized by pulsed magnetic field and pulsed electric field induction. Therefore, the plastic toughness of metal materials is improved, the strength of materials can be increased, the abrasion resistance of materials can be greatly improved, the initiation of microcracks can be restrained and expansion of the microcracks can be delayed, and the fatigue life of the materials can be significantly prolonged. In addition, the whole repair process will not cause significant temperature rise and thermal deformation of the metal material.
Owner:WUHAN JINGTAI TECH CO LTD +1
Irregular mesh mapping method used in electromagnetic field-flow field-temperature field coupling calculation
ActiveCN103617367ASolve the accuracy problemSolve needsSpecial data processing applicationsTypes of meshResearch Object
An irregular mesh mapping method used in electromagnetic field-flow field-temperature field coupling calculation comprises the following steps of 1 establishing a flow field-temperature field calculation model; 2 reading node coordinate values of discrete units of the model; 3 re-establishing a geometric model of a research object in the electromagnetic field calculation, performing model discrete to form a triangular finite element mesh and performing electromagnetic field value calculation; 4 mapping power consumption onto units in a temperature field; 5 obtaining a mapping correction factor; using power consumption densities of the units as loads to be loaded into the temperature field for solution and calculation, and obtaining a temperature result; accordingly obtaining the power consumptions of the units in the temperature field. By adopting the irregular mesh mapping method used in the electromagnetic field-flow field-temperature field coupling calculation, data transfer of different types of meshes can be adopted in different physical fields, the mesh number is greatly decreased, and the calculation time and the calculation accuracy are shortened and improved.
Owner:CHINA THREE GORGES UNIV
Brake friction, heating and vibration coupling test table
The invention discloses a brake friction, heating and vibration coupling test table frame which comprises a base. A first support, a second support, a third support, a fourth support, a fifth support and a brake caliper assembly installing support are sequentially arranged on the base from left to right. Each component of a power driving device is respectively arranged on the first support, the second support, the third support, the fourth support and the fifth support, a brake of a braking device is arranged on the brake caliper assembly installing support, the output end of the power driving device is connected with the input end of the braking device, sensor parts of a collecting measuring device are respectively arranged on the power driving device and the brake of the braking device, and the collecting measuring device is connected with a controller. A test table is compact in layout and easy to measure and control, an advanced testing technology and a control method can be fully utilized, test working conditions are convenient and accurate, and measurement of a brake friction, heating and vibration physical field is targeted.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD
Thermo-hydro-mechanical (THM) coupling simulation experiment system and use method thereof
ActiveCN104749044AMaterial strength using tensile/compressive forcesPermeability/surface area analysisStability studyMulti field
The invention belongs to the field of studies on stability of rock and earth masses under a multi-field coupling effect, and particularly relates to a thermo-hydro-mechanical multi-physical field coupling simulation experiment system suitable for the rock and earth masses and a use method thereof. The thermo-hydro-mechanical (THM) coupling simulation experiment system mainly comprises a monitoring mainframe, a triaxial pressure test mainframe, a heat pump control circulating system, a GDS pressure-volume controller group and a data collector; by carrying out gradual in-depth studies on influence of a mechanical unloading process on the mechanical properties and the hydraulic properties of the rock and earth masses and the influence of temperature loads on the damage evolution law, the permeability and the thermal conductivity of the rock and earth masses on the surrounding of a chamber, and the interaction and mutual influence conditions between of a stress field and a seepage field (HM), between the stress field and a temperature field (TM) and between the seepage field and the temperature field (TH) are disclosed.
Owner:UNIV OF SCI & TECH BEIJING
Electromagnetic flexible composite fused deposition direct preparation forming method for gradient part
ActiveCN104959601ARealize integrated manufacturingReduce pollutionAdditive manufacturing apparatusArc welding apparatusNumerical controlPhysical field
Owner:武汉昱峰科技产业发展有限公司
Material in-situ detection device and method under multi-load and multi-physical field coupled service conditions
ActiveUS20180180521A1Easy maintenanceReduce impactMaterial strength using tensile/compressive forcesMaterial strength using steady bending forcesPhysical fieldMicroscopic observation
Provided are a material in-situ test device and method under multi-load and multi-physical field coupled service conditions. The device is composed of a precise six-degree-of-freedom composite load applying module, a precise torsion module, a precise indentation module, a clamp module and a control module which work together to complete a composite-load and multi-physical field coupled experiment, and is integrated with a digital speckle strain measurement and infrared thermal imaging module and a microscope observation module, so as to carry out in-situ observation and quantitative characterization on material deformation behaviours and damage mechanism phenomena in a composite-load and multi-physical field loading process. For example, loading methods of “cantilever type pure bending, cantilever type tension / compression-torsion, and cantilever type bending-torsion”, etc. can realize the loading of composite load. Silicon nitride ceramic heating sheets, Peltier tiles and current loading are used for achieving simulation of multiple physical fields such as cold / hot-electricity fields.
Owner:JILIN UNIV
Three degree of freedom spherical motor with multiple physical field mixing driving
InactiveCN101777851ASimple designWith power-off self-locking abilityPiezoelectric/electrostriction/magnetostriction machinesThree degrees of freedomPhysical field
The invention belongs to the technical field of motor manufacture, and relates to a three degree of freedom spherical motor with multiple physical field mixing driving. The spherical motor comprises a supporting part, a stator and a spherical rotor, wherein the supporting part comprises a base and a spherical stator casing fixed on the base. The top end of the stator casing is provided with a circular hole. One layer or more than one layer of winding installation holes is uniformly distributed on the upper sphere of the stator casing in the direction parallel to the equator. The stator comprises a stator winding and an ultrasonic vibrator, wherein the stator winding consists of a winging shaft and a coil. The diameter of the winding shaft is slightly smaller than the inner diameter of the winding installation hole, and the top of the winding shaft penetrates through a compression spring and is arranged in the winding installation hole. The ultrasonic vibrator is fixed on the base, and the upper end of the ultrasonic vibrator is in an inner cone shape, and is matched with the spherical rotor. The spherical rotor is uniformly embedded in a multilayer permanent magnet pole along the direction parallel to the equator. The invention has reliable structure, improves the torque characteristic of the motor, and enhances the design flexibility of the motor control system.
Owner:TIANJIN UNIV
Well jet device for well testing and development and operating method for said well jet device
InactiveUS20040134663A1Improve efficiencySpeed up the processJet pumpsFluid removalPhysical fieldTransducer
The invention relates to jet devices for extracting oil from wells and intensifying the oil influx rate. An output cone, a packer and a jet pump are mounted on a tubing string. One or several active nozzles are arranged inside the pump body, and a stepped pass channel provided with a mounting seat for a pressure-sealing unit which is disposed between stages and several channels for supplying a pumped-out medium are embodied inside said pump body. The axes of the nozzles are disposed in a parallel position with respect to the axis of the pass channel at a certain distance therefrom. The inventive device is provided with a radiator and a receiver-transducer of physical fields mounted on a cable in such a way that it is replaceable by other instruments. Said cable passes through the axial channel of the sealing unit which is arranged in such a way that it is successively replaceable by functional inserts such as a testing and depression inserts etc. Said inserts are provided with mechanisms for bringing them to the pump body and for extraction therefrom. Mounting seats for back valves and plugs are embodied in the lower part of the channels for supplying the pumped-out medium. The dimension ratios of the elements of the inventive device are also disclosed. The aim of the invention is to optimise the dimensions of the elements of said device and increase the performance thereof.
Owner:KHOMYNETS ZINOVIY DMITRIEVICH
Hypersonic aerocraft leading edge fluid-heat-solid integrated calculation method
InactiveCN107832494AImprove stabilityImprove calculation accuracyGeometric CADSustainable transportationPhysical fieldEngineering
The invention discloses a hypersonic aerocraft leading edge fluid-heat-solid integrated calculation method, and belongs to the field of aerocraft pneumatic calculation. For solving the problem of complex coupling of structure heat transfer and hypersonic speed flow aerodynamic heating, the method avoids the complex data exchange and calculation amount caused by flow field and structure coupling alternate iteration calculation performed within a time domain through a traditional aerodynamic heating / structure heat transfer coupling solving method, the flow field and the structure are adopted asa physical field, and a uniform control equation is adopted. Physical parameters of a fluid and solid interface are defined again, a finite volume method is performed on a full physical field for spatial dispersion, and hidden time iteration is adopted for time stepping. Compared with a coupling algorithm, the method needs no extra data exchange or coupling strategy, the calculation result and anexperiment value are closer, the calculation amount and the grid dependency are smaller, and the better stability and calculation precision are achieved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Utilization of logical fields with conditional modifiers in abstract queries
ActiveUS20060085436A1Digital data information retrievalDigital data processing detailsProgramming languagePhysical field
Methods, systems, and articles of manufacture for enhancing abstract queries by utilizing conditional modifiers with logical fields are provided. Conditional modifiers allow for the referencing of multiple physical fields via a single logical field. Further, conditional modifiers facilitate the ability to specify, on an instance by instance basis, which physical field or combination of physical fields a particular logical field should reference.
Owner:SERVICENOW INC
Multi-physical field coupling simulation method and system for submarine high-pressure blow-off pipeline system
InactiveCN108416127AImprove security and concealmentImprove noise characteristicsDesign optimisation/simulationSpecial data processing applicationsMultiphysics couplingPhysical field
The invention discloses a multi-physical field coupling simulation method and a multi-physical field coupling simulation system for a submarine high-pressure blow-off pipeline system. The method comprises the steps of establishing a three-dimensional geometrical model of a high-pressure blow-off system pipeline; performing finite element mesh division and boundary condition setting on the three-dimensional geometrical model of the high pressure blow-off system pipeline; performing fluid mechanic simulation calculation to obtain flow field characteristics in the high-pressure blow-off system pipeline and flow-induced noise characteristics in the blow-off system; performing simulation analysis on a fluid-solid coupling problem of the high-pressure blow-off system pipeline based on a multi-physical field fluid-solid coupling simulation calculation method; performing transient acoustic boundary element simulation calculation by use of an acoustic simulation calculation method based on a fluid-solid coupling simulation calculation result; and performing qualitative and quantitative analysis on flow field noises, flow-induced noises and vibration noises of the system pipeline and a watertank based on the multi-physical field fluid-solid-sound coupling simulation method. Through the multi-physical field coupling simulation means, the invention provides a noise prediction system for the submarine high-pressure blow-off pipeline system.
Owner:WUHAN UNIV
Treatment of natural polymer based materials and the products based thereon
InactiveUS20050048207A1Enhanced interactionLower extractable contentRadiation/waves wood treatmentNon-macromolecular organic additionSimple Organic CompoundsAfter treatment
A method for modifying a substrate containing a natural polymeric material to improve its interaction with other materials, the method comprising: A) Treating the substrate containing the natural polymeric material with a modifying agent selected from the group consisting of organo-functional coupling agents and multi-functional amine containing organic compounds; and B) optionally exposing the substrate containing natural polymeric material with one or more treatments selected from the group consisting of: i) subjecting the substrate to extraction with a solvent to reduce the content of extractable materials associated with the natural polymeric material prior to or during treatment with the modifying agent; ii) treatment with a physical field selected from static physical fields, high-frequency alternating physical fields and combinations of two or more thereof either prior to, during or after treatment with the modifying agent; and iii) oxidation of at least part of the natural polymeric material prior to or during treatment with the modifying agent.
Owner:COMMONWEALTH SCI & IND RES ORG
Ceramic/ceramic connection method for regulating and controlling middle solder layer through multi-physical-field coupling
Provided is a ceramic / ceramic connection method for regulating and controlling a middle solder layer through multi-physical-field coupling. According to the ceramic / ceramic connection method, a heat source is adopted to fuse solder or solder and a part of base metal, meanwhile physical fields are additionally applied, the solder is a non-crystalline material or a mixed material of the non-crystalline material and a reinforcement phase, an outer heating source is acetylene flame or oxyhydrogen flame, electric arcs, laser, electron beams or a resistance heating method for melting metal through heat conduction and heat radiation is adopted, and the additionally-applied physical fields are one or more than two of ultrasonic waves, magnetic fields and electric fields which are simultaneously applied. The ceramic / ceramic connection method has the advantages of effectively controlling interface reaction, strengthening liquid metal flowing, regulating and controlling weld joint substance distribution, regulating the metallurgical welding process, controlling a weld joint organization structure, eliminating weld joint defects, reducing residual waste heat stress, improving weld joint toughness, promoting interface bonding, improving the mechanical property of welded joints, decreasing the material using amount and reducing environmental pollution through the additionally-applied physical fields and being widely applied to the fields of aviation, aerospace, electronic devices, fuel cells and the like.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
Method and system for virtual removal of physical field replaceable units
ActiveUS7752485B2Minimize potentialImprove efficiencyError detection/correctionProgram controlGraphicsGraphical user interface
A method of virtually removing field replaceable units (FRUs) from a computer system during concurrent maintenance operations. Firmware within a flexible service processor (FSP) assigns unique resource identification (RID) numbers to each FRU in the computer system. The firmware collects vital product data (VPD) for each FRU and generates a duplicate test shared library, which is stored in a memory directory corresponding to the FSP. When the firmware receives input from a graphical user interface (GUI) that includes at least a first FRU selected for virtual removal from the computer system, the firmware adds the RID number of the selected FRU to the memory directory and recollects VPD. The FSP subsequently ignores any FRUs corresponding to RID numbers stored in the memory directory during operation of the computer system.
Owner:TWITTER INC
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