782 results about "Experimental testing" patented technology

The invention discloses a shale gas reservoir gas diffusion coefficient experiment test method. According to a method, a one-dimensional diffusion mathematic model is built by monitoring pressure attenuation data in a shale plunger rock sample under effective stress conditions of methane gas with a certain initial pressure in a constant-temperature closed system with the micro-pore structure and the gas existence state of a shale reservoir as bases, the diffusion coefficient of the gas (methane) in shale is calculated, and the diffusion mass-transfer capacity of the gas (methane) in the shale is quantitatively assessed. In the experiment testing process, the diffusion process of gas in the shale gas reservoir can be effectively simulated, and influences of effective stress, gas adsorption/desorption and other factors on the diffusion coefficient are reflected. Besides, the method can overcome influences of gas free expansion stage data in a traditional adsorption/desorption method on the diffusion coefficient. The method can assess the diffusion mass-transfer capacity of the gas in the shale and provide experiment support for researches in the aspects of shale gas reservoir productivity models, productivity prediction and the like.

The invention relates to the technical field of fire hazard safety, and especially relates to an experiment device and an experiment method for gas cloud combustion, explosion simulation and inerting, inhibition. The device comprises an experiment test system composed of an explosion experiment container tank, a flame and explosion pressure radial propagation detection device, an ignition device, a generated gas sampling analyzer, and a high-speed schlieren and data acquisition, a sample introduction system, a combustion explosion inerting inhibition system, and a control system composed of wireless synchronous control and computer remote monitoring, and is a multifunctional comprehensive experiment platform device. The invention realizes 180-degree rotation of the tank, data synchronous acquisition, gas distribution and sample introduction with precise proportions, synchronous and delayed multimode ignition and inhibition system ejection; wireless and wired data transmission is adopted for control; man-machine separation of the tank and the controlling person is realized; safety and reliability of data transmission are guaranteed; combustion or explosion and inerting and inhibition experiments of various experiment samples such as gas cloud, dust, oil mist, and the like can be carried out when the tank is in a vertical or horizontal state.

The invention discloses a method and device for testing rock drillability of deep well drilling and extra-deep well drilling. The device comprises a machine frame (1), a high temperature and high pressure loading mechanism and a micro drill bit rock breaking drilling depth measurement mechanism, wherein the high temperature and high pressure loading mechanism and the micro drill bit rock breaking drilling depth measurement mechanism are arranged on the machine frame (1). The device exerts confining pressure, pore pressure and fluid column pressure on rock samples in cavities in three axes, overburden pressure is exerted on the rock samples through a hydraulic pump, and therefore the high pressure environment of the stratum of the bottom of a well can be simulated, the relation between the drilling depth and the time is tested through a displacement sensor at the position of a micro drill bit, optimization of the drilling pressure, the rotating speed and the drilling fluid type and drilling machinery drilling speed prediction are achieved. The method and the device have the advantages that the requirements for the bottom hole temperature and the pressure can be met in the deep well drilling process and the ultra-deep well drilling process, the function of testing multiple sets of rock drillability values through a single time of experimental testing of deep well drilling is achieved, the efficiency of the single time of experimental testing is greatly improved, and experimental cost is reduced.

The invention discloses a DNS (Domain Name System) tunnel Trojan detection method based on communication behavior analysis. The DNS tunnel Trojan detection method mainly comprises four parts, namely,a data packet acquisition and integration module, a DNS session reorganization module, a random forest classification training and learning module and a DNS tunnel Trojan traffic detection module. Thecommunication mode of DNS tunnel Trojan is analyzed from the perspective of DNS session; seven attributes which are different from normal DNS session characteristics are extracted; a classification trainer is constructed with an improved random forest algorithm; and finally, a DNS tunnel Trojan detection model is built. As proved by experimental testing, a DNS tunnel Trojan detection technology based on communication behavior analysis disclosed by the invention can effectively detect high-concealment DNS tunnel Trojans, and has the advantages of low false alarm rate, low missing report rate and a very good detection effect on unknown DNS tunnel Trojans.

The invention relates to an experimental evaluation method of gas-injection displaceable oil of fracture-cave type carbonate reservoir. The method comprises the following steps in sequence: (1) making a fracture-cave type carbonate core model; (2) preparing an in-place oil sample and injected gas, and setting a pressure point p1 for gas injection and a pressure point p2 for gas injection termination; (3) recovering the original state of the core; (4) carrying out an exhaustion experiment from the top end of the core; (5) carrying out the gas-injection displaceable oil experiment for a plurality of times from the top end of the core at the formation temperature; and (6) calculating development indexes (of the gas injection displaceable oil experiment) such as the recovery efficiency of the raw oil, the gas-oil ratio, the gas-water ratio, and the like. By making a physical single fracture plane overall-diameter fracture-cave core model which keeps the completeness of the core, an experimental testing method for physical gas injection displaceable oil simulation is established, and a tool and a means for evaluating the recovery effect of the fracture-cave type carbonate is provided.

The invention mainly relates to a dynamical joint simulation analysis method of a door system of a rail transit vehicle, and the method mainly comprises the steps as follows: (1) a system is subjected to three-dimensional modeling and a three-dimensional model is converted to a neutral file in a SolidWorks environment to be imported into ADAMS (automatic dynamic analysis of mechanical systems); (2) the modal analysis of a flexible body component is conducted in Ansys, and converted to a neutral file to be imported into the ADAMS to replace a corresponding rigid body model; (3) a simulation model is preprocessed; (4) a system control model is built in Matlab, the door system is subjected to simulation control by an ADAMS/Control module to accomplish the kinematic and dynamical simulations of the whole system; (5) an experimental test platform is constructed, and a motion experimental test of the system is conducted; (6) a simulation result is compared with an experimental result, and the model is modified continuously; and (7) motion simulations of opening and closing a door and simulating a practical operating condition are conducted to search an optimal door control system mode.

The invention provides a core permeability experimental testing method and a device under a condition of stratum pressure. The method comprises the steps of: installing a core sample in a core holder and applying confining pressure to the core holder through a high-pressure injection pump; adjusting a back pressure controller and setting pressure to an initial back pressure value; filling air into pores of the core sample, and after the pressure of the pores of the core sample is balanced, stopping filling air and cutting off an air source; and testing the permeability of the core sample and recording the permeability testing result. The experiment not only simulates pressure which is applied by an overlying rock stratum to the core sample in a stratum, but also simulates original stratum pressure applied by fluid in bypass pores to the core sample in the stratum. Therefore, the actual physical condition of the core sample in the stratum is fully simulated, and the permeability of the core sample which is tested based on the experimental testing method and the device is enabled to be more scientific and more accurate.

The club cleaner, conditioner and protectant comprises alpha-olefins, low-odor aromatic solvents; and at least one base oil selected from the base oil group consisting of Hydrolsomerized high base oils and HT Sever Hydro-cracked Base oils; as well as other (optional) ingredients. Also disclosed is a method for producing this product and related product-by-process. This product uses a formulated cleaning mixture to clean and restore the face of the club while rejuvenating the grips. The invention when sprayed on the clubface removes foreign materials and when wiped dry protects the face of the clubs from harsh stains, caused by soils, grass and chemicals related to fertilizers. In experimental testing, the invention increases drive distances by reducing sidespin and increasing backspin. The club is left with a factory-like finish making it easy to wipe clean of soiling. The invention when applied to the grips restores the surface to the new feel.

The invention discloses a short tube flexible gear harmonic reducer of a rigid wheel tooth dip angle and a transmission rigidity testing device thereof, and relates to the technical field of harmonic reducers. According to the invention, the deflection of the flexible wheel gear teeth is caused by the reduction of the axial size of the short tube flexible gear harmonic reducer, so as to realize the reduction of the surface area between the rigid wheel gear teeth and the flexible wheel gear teeth, and to realize the lowering of the transmission rigidity; the problem of complicated operating process of the existing harmonic drive rigidity experiment testing device is solved; and the length diameter ratio of a soft wheel is 1/4 to 3/5 of a short tube wheel, the inner wheel of the rigid wheel with a dip angle is the wheel teeth with the dip angle alpha along the rigid wheel axial direction, and the deflection direction and the field angle direction of the soft wheel on a long shaft are coincident. The transmission rigidity testing device of the short tube flexible gear harmonic reducer implements current control namely torque control through a computer and a servo driver, and the harmonic drive output end realizes continuous loading unloading; and the harmonic drive rigidity of the short tube soft wheel is obtained, and the transmission rigidity is serially, rapidly accurately obtained.

The invention discloses an experimental test system and method of disturbing creep of rock under pressure action of infiltration water. According to the system, a first support pillar is fixedly arranged on a base, first and second reinforcing beams are pivoted to the first support pillar, a movable support is arranged on the second reinforcing beam and is contacted with the first reinforcing beam, one end of the first reinforcing beam is fixedly connected with a weight holder and a vibrator, a frequency modulator is externally connected with the vibrator, the vibrator produces vibration withdifferent amplitude values and different frequencies through modulation of the frequency modulator, and axial disturbance with different amplitude values and different frequencies is further producedfor a test piece; impact disturbance of different strengths is realized through free falling bodies of weights in different masses from different heights; a creep loading test can be realized by increasing or decreasing weights on the weight holder; different confining pressure and different seepage water pressure can be loaded to the test piece; experimental test of creep of the rock under the conditions of different axial pressure, different confining pressure, different seepage water pressure and different disturbing characteristics is realized, and the creep characteristic of the rock under the complicated condition can be better researched.

The invention discloses a magnetic-ultrasonic difunctional SiO2 hollow sphere contrast agent and a preparation method and an application thereof; the contrast agent comprises SiO2 hollow spheres; the SiO2 hollow sphere has a hollow spherical structure with an inner diameter of 100-2000 nm and a shell thickness of 10-50 nm; a magnetic material DTPA-Gd and targeting molecule RGD are coupled on the surface. The difunctional SiO2 hollow sphere contrast agent obtained by the invention has a uniform particle size, a suitable cavity dimension, a proper shell thickness, and good biocompatibility; ultrasonic imaging and magnetic resonance imaging experimental testing shows that the contrast agent can be used as a good ultrasonic-magnetic dual-mode imaging contrast agent; the experimental device of the invention is simple; the required raw materials are easily available and low in price; the operation process is simple; the by-product causes no pollution; and the invention provides an economical and practical new method for the synthesis of ultrasonic-magnetic dual-mode imaging contrast agents.

The invention discloses an experimental test device and method for forced imbibition capability of shale. The test device mainly comprises a clamp holder, a press machine, a calorstat, a constant-speed constant-pressure pump, an intermediate container, a constant-speed constant-pressure pump outlet valve, a tee, an inlet valve for a fluid in the parallel bedding direction and an inlet valve for afluid in the vertical bedding direction. The test method comprises the steps of 1) rock sample processing, 2) porosity testing, 3) test parameter determining, 4) fracturing fluid preparing, 5) experimental testing and 6) imbibition capacity calculating. The test device and the test method which are disclosed by the invention have the advantages that various influencing factors such as formation stress, formation temperature, fluid injection pressure, shale anisotropy and the like can be considered in the test method to ensure that the forced imbibition capability in the different bedding directions, of the shale, can be quantitatively characterized; the change rule of the forced imbibition amount of the shale under different formation conditions with time can be accurately reflected and quantitatively tested; and very good guiding roles are played for knowing the imbibition rule of the shale and optimizing the shale volume flowback system after fracturing.

The invention relates to a transparent soil model pile experimental testing device and an application method thereof. The whole system comprises an experiment table and a model experiment device, wherein the experiment table can be leveled through setting adjustable table legs; a desktop is provided with a bracket and a bracket fixing plate so as to mount an engineering diffuser, a camera and a laser device, and is provided with a slide model fixing plate and a vertical and transverse slide limiting plate so as to position and fix a model testing groove; a counter-force frame is arranged above the model testing groove, is adjusted by an adjustable type screw rod and a fixed screw cap and is fixedly arranged on the tabletop; the counter-force frame is provided with a small-size hydraulic jack and a pressure meter; artificially synthesized transparent soil is arranged in the model testing groove and the model testing groove is provided with a model pile and a model pile loading head so as to carry out a post-period model test. The whole system is reasonably arranged, and a loading test and observation on displacement and deformation conditions can be conveniently carried out on the model pile in the artificially synthesized transparent soil.

The invention discloses an experiment operation evaluation method and system based on a DIS, and the method comprises the steps: obtaining a plurality of pieces of experiment step data of an experiment operation performed by an examinee; comparing the plurality of pieces of experiment step data with the corresponding standard experiment step data to obtain the similarity between each piece of experiment step data and the corresponding standard experiment step data; carrying out the weighted calculation of the similarities between the pieces of experiment step data and the corresponding standard experiment step data to obtain the test score of each piece of experiment step data, and carrying out the accommodation of the test scores of the pieces of experiment step data to obtain an experiment result; and outputting the experiment result. According to the technical scheme of the invention, the method can achieve the automatic scoring of the experiment operation steps of the examinee, andimproves the work efficiency. The method is more accurate in scoring, and brings convenience to the examinee and parents for subsequent checking.

The invention discloses an experimental device and a testing method for rapidly determining the corrosion rate of reinforcing steel bars. The method comprises the following steps: I, preparing a test sample; II, preparing a solution; III, establishing a device; IV, installing the test sample; and V, testing the test sample. The invention provides an experimental device and a testing method for rapidly determining corrosion rate of reinforcing steel bars by adopting a macro battery, no gap corrosion of the test sample in testing can be guaranteed, the experimental testing accuracy is high, the consistent testing results can be shown by performing electrochemical linear polarization testing to the reinforcing steel bars and service environment sample feeding testing to reinforcing steel concrete test samples, and the efficiency of the testing method can be effectively proven.

The invention discloses a turbine blade thermal barrier coating working condition simulation experiment test system. The system comprises working state simulation equipment, service environment simulation equipment and detection equipment; the working state simulation equipment is arranged at one side of a to-be-tested turbine blade thermal barrier coating, connected with the to-be-tested turbineblade thermal barrier coating and used for simulating the high-speed rotation working state of the to-be-tested turbine blade thermal barrier coating; the service environment simulation equipment is arranged at the other side of the to-be-tested turbine blade thermal barrier coating and used for simulating the service environment of the to-be-tested turbine blade thermal barrier coating in the high-speed rotation working state; the detection equipment is used for detecting damage generated when the to-be-tested turbine blade thermal barrier coating rotates at high speed in the service environment. By means of the experiment test system, the working state and the service environment of the to-be-tested turbine blade thermal barrier coating are simulated, so that key damage parameters of theturbine blade thermal barrier coating in the failure process are conveniently detected in real time, and technical support is provided for process optimization and automatic design of the thermal carrier coating.

An innovative oil observer for estimating oil concentration and oil amount in a refrigerant compressor in a vapor compression cycle is described. The invention ensures the safe operation of the compressor by ensuring that adequate lubricant is present in the compressor. This oil observer is based on oil models for components of air conditioning and refrigeration systems. Oil models for HVAC components estimate oil mass and refrigerant mass in each component. With all component oil models and heat exchanger observers which provide the estimation of inner geometric lengths of two-phase flow heat exchangers, a system-level oil observer is established by integrating all component models. Experimental testing has been conducted to verify the performance of this oil observer for steady state operation and dynamic processes. The invention has direct applications in residential and commercial air conditioning and refrigeration systems.

The invention relates to a micro grid experimental testing platform on the basis of an RTDS (Real Time Digital System), which comprises an RTDS simulation system, an interface screen cabinet and a micro grid control system, wherein the RTDS simulation system is connected with the micro grid control system by the interface screen cabinet; the RTDS simulation system is used for constructing a micro grid primary main loop and providing a real-time simulation environment; the interface screen cabinet is used for providing an actual engineering interface between the RTDS simulation system and the micro grid control system; and the micro grid control system is used for implementing energy management of an integral micro grid system. According to the invention, a simulation model of the micro grid primary main loop is established on the RTDS; a simulation time scale of the micro grid experimental testing platform is very close to that of an actual power system and can truly represent a state of the actual power system; parameters of the micro grid experimental testing platform are convenient and rapid to regulate; various operating working conditions of the integral micro grid system can be simulated at any time; and efficiency of micro grid experimental testing is greatly improved.

The continuous-level memristor emulator is a circuit that uses off-the-shelf components to emulate a memristor. The circuit uses two current-feedback operational-amplifiers (CFOAs) and uses an operational transconductance amplifier (OTA)-based circuit in place of a diode resistive network to provide a continuous level of memristance instead of two binary states. The OTA is forced to work in its nonlinear region by the voltage V_DC applied to its positive input terminal. Thus, the transfer function of the OTA-based circuit will be a nonlinear function. Experimental testing shows that the continuous-level memristor emulator is operational as a memristor, and the emulator may be used, e.g., in place of a memristor in a multivibrator circuit.

The invention provides a stratum stress sensitive experiment testing method and device. The method comprises the following steps: (1) obtaining actual geological data; (2) selecting a formula for calculating a reservoir stratum pressure arch ratio according to a shape of a reservoir stratum and dynamic property difference of the reservoir stratum and surrounding rock; (3) determining initial reservoir stratum pressure and initial overburden pressure of reservoir stratum rock; (4) determining a change relation of confining pressure and driving pressure along return pressure; (5) recovering a rock core with undeveloped natural fractures to an original confined water saturation degree; (6) carrying out ageing treatment on the rock core; (7) recovering original stress and fluid pressure of the rock core; (8) simulating stress sensibility of the reservoir stratum in an exploitation process; (9) processing and analyzing data. According to the stratum stress sensitive experiment testing method and device, a quantitative change relation of the overburden pressure of the reservoir stratum along pore pressure in an oil-gas reservoir development process can be obtained according to the actual geological data of oil-gas reservoirs.

The invention discloses a test system of fluid-solid coupling physical similarity simulation experiment for filling mining, which mainly comprises a similar simulation experiment frame, wherein coal and rock stratum similar simulation material, aquifer similar simulation material, water-proof key layer similar simulation material and filling body similar simulation material are laid in the similarsimulation experiment frame. The aquifer consists of a transparent flexible water tank filled with coarse and fine aggregates, one side of the aquifer is connected with a water source supply device to provide stable osmotic pressure for the aquifer utilizing a water pump, and the lower part of the water tank is provided with permeable combined hole devices with adjustable quantity and pore size;the water-proof key layer similar simulation material is mainly prepared from aggregate, an anti-permeability waterproof material and an auxiliary cementing material according to the required similarity ratio; and the filler similar simulation material is selected according to the stress-strain similarity theory. The test system of fluid-solid coupling physical similarity simulation experiment forfilling mining can realize the process of overburden deformation, fissure evolution and seepage and water inrush in the filling and mining under the fluid-solid coupling condition, and has the advantages of simplicity, strong operability, high simulation accuracy and the like.

The invention discloses experimental testing equipment for the mixed gas adsorption capacity of coal rock/shale. The experimental testing equipment is characterized in that a first gas storage cylinder (1) and a second gas storage cylinder (2) are communicated with a gas mixing container (22); the gas mixing container (22) is communicated with a reference tank (28) and a sample tank (29) in sequence through a gas storage tank (16); a first electromagnetic valve (5) and a first electromagnetic flowmeter (7) are arranged between the gas storage cylinder (1) and the gas mixing container (22); and a second electromagnetic valve (6) and a second electromagnetic flowmeter (8) are arranged between the second gas storage cylinder (2) and the gas mixing container (22).

The invention relates to the technical field of experimental testing, and aims at providing a shock testing device of large-scale protecting glass. The shock testing device comprises a clamping component and a suspending component. The clamping component comprises a base, a supporting steel box, an upper frame and a rubber gasket. The supporting steel box is used for placing the large-scale flat-panel protecting glass. The upper frame is capable of connecting with the supporting steel box tightly and enables the rubber gasket to be arranged between the upper frame and the supporting steel box. The suspending component comprises a suspending frame, an electromagnet, a spring, laser pens and a DV. The electromagnet is installed at the center of a top beam of the suspending frame, the spring is fixed on the electromagnet, a shocking piece is absorbed at the lower end of the spring through the electromagnet, the four faces of one frame column of the suspending frame are provided with scales, and a row of laser pens are tied on the other frame column of the suspending frame. The DV is arranged on the suspending component. According to the shock testing device of the large-scale protecting glass, the large-scale protecting glass is difficult to vibrate and deviate, the veracity of testing is guaranteed, the bouncing speed of the shocking piece can be measured, and a more completed analysis is conducted on the shock testing.

The invention relates to a dynamic experimental testing system of a pantograph. The dynamic experimental testing system of the pantograph mainly comprises a high voltage terminal data acquisition device, a low voltage terminal data acquisition device and a testing station. The system can comprehensively monitor various indicators of the pantograph according to the working state of the pantograph, and the whole system is organically integrated by combining the digital image processing technology, the testing technology and the optic fiber communication technology. Indexes of the time at which the arc is generated, the arcing rate and the like can be accurately obtained, the hard spot of the pantograph, the dynamic height curve of a pantograph plate, and the dynamic contact pressure of a pantograph catenary are measured, furthermore, the position at which the abnormal value is located is obtained according to the kilometer post information tested by the system, and thus the subsequent relevant adjustment on the pantograph catenary is facilitated.