14results about How to "Realize a realistic simulation" patented technology

The invention provides a method for simulating and evaluating corrosion of an air conditioner condensation tube bundle in a marine atmospheric environment. A corrosion coupon and an impedance measurement probe are adopted to research corrosion behaviors of an air conditioner heat exchange tube and a fin working in the marine atmospheric environment. A simulation test device for simulating the heat exchange environment of an air conditioner is adopted in the test, when the device is used, the temperature of a hot fluid storage chamber and the temperature of a cold fluid storage chamber are set, and the temperature of the hot fluid storage chamber is controlled by a heating wire and a thermocouple; the temperature of the cold fluid storage chamber is controlled by a condenser pipe and a thermocouple. After the fluid in the storage chamber reaches a set temperature, an underflow pump in the hot fluid storage chamber is opened, and water starts to circulate in a heat conduction pipe in the test cabin. After circulation is carried out for a period of time and the temperature sensors in the storage chamber and on the surface of the heat conduction pipe are stable, the simulation test piece and the like are placed on the heat conduction pipe, the internal salt mist generator is turned on, and the test is started. In the test process, the temperature and humidity changes in the test cabin are detected by an internal temperature and humidity meter.

A non-submerged cavitation-erosion synergistic damage simulation device, system and method belong to the field of hydraulic machinery working condition simulation, including a sediment jet channel and a cleaning fluid channel in its periphery; high-speed sand-containing fluid is introduced into the sediment jet channel to form a central high-speed jet impacting the sample surface, high-speed cleaning fluid is introduced into the cleaning fluid channel to form a peripheral low-speed water curtain surrounding the central high-speed jet after being ejected from the annular steady flow pipe, and the peripheral low-speed water curtain impacts the sample surface to form a local liquid phase confining pressure zone together with the central high-speed jet. The present application not only realizes the true simulation of the actual working condition under non-submerged conditions, but also can adjust the flow and pressure of the cleaning fluid to adjust the cavitation number and cavitation collapse intensity around the high-speed sand-containing jet without changing the atmospheric environmental pressure, and quickly adjust the simulation test parameters.

The invention belongs to the technical field of geotechnical engineering, and discloses an underground structure test device and method for simulating a diastrophism-earthquake coupling effect, and the device comprises a layered shear box, an upper disc bearing base, an upper disc bearing plate and a jack; the layered shear box is placed on the vibration test bed, and a simulated soil body is arranged in the layered shear box; wherein an underground structure model is placed in the simulated soil body in advance; the upper disc bearing base is arranged in the layered shear box and is arranged at the bottom of an upper disc of the simulated soil body; the upper disc bearing plate is horizontally laid on the top surface of the upper disc bearing base, and the top surface of the upper disc bearing plate is in contact with the upper disc bottom of the simulated soil body; the jack is vertically arranged in the upper disc bearing base and is used for applying a load in the vertical direction to the upper disc bearing plate; according to the invention, the real simulation of the mechanical response of the simulated soil body under the action of fault or ground fracture dislocation and earthquake coupling is realized, the accuracy and authenticity of the simulation test result are effectively improved, and the safety of the underground structure is further ensured.

The invention discloses a temperature adjusting system of a real gas flow high and low temperature verification system, which is characterized by comprising a heat exchange module and a refrigerating and heating unit, wherein the heat exchange module is internally provided with a sealed accommodating cavity for loading a refrigerating / heating medium, and a section of solid gas conveying pipe for heat exchange, which is made of a heat-conducting metal material and penetrates through the sealed accommodating cavity in a sealing manner, is arranged in a verification solid gas circulating loop of the solid gas flow high and low temperature verification system; wherein the refrigerating and heating unit is used for circularly supplying a refrigerating / heating medium into the sealed accommodating cavity of the heat exchange module, so that the heat exchange module can carry out heat exchange with real gas conveyed in a verification real gas circulating loop of the real gas flow high and low temperature verification system to realize temperature regulation. The system is simple in structure, data of all the temperature measuring sensors can be collected to serve as feedback signals, the fuel gas temperature in a real gas circulation loop can be accurately regulated, controlled and verified through the feedback signals, and real simulation of various real gas temperature working conditions is achieved.

The invention discloses a device and method for maintaining a load position unchanged, the device comprises lower telescopic units, a box body, a rope, a side edge steering unit, a center switching mechanism, an upper telescopic unit and a fixing clamp, the fixing clamp used for clamping the rope is installed in the middle of the bottom end of the box body, and a plurality of lower telescopic units are installed at the bottom end of the box body; a plurality of lower telescopic units are installed on the top of the box body and distributed in an array mode, a center switching mechanism is installed in the middle of the box body, a plurality of upper telescopic units are installed on the top of the box body and distributed in an array mode, and side edge steering units are installed on the two sides of the top of the box body. The device is suitable for the transmission balance test on the single crystal furnace, and is also suitable for occasions where the upper end is continuously lifted, the load weight is increased and the position is not changed, the load does not need to be designed to be equal to a crystal silicon rod in length or equal to a furnace body in diameter, and space conflicts between the load and the furnace body and between the load and an auxiliary chamber are avoided.

The utility model discloses a novel enterostomy simulation device. The novel enterostomy simulation device comprises a fixing part and a stoma model, the fixing part comprises two layers of fixing bodies with the same structure, the two layers of fixing bodies are stacked and are sewn into a whole, each fixing body comprises a base body and a bandage, the base body is circular, a connecting hole is formed in the middle of the base body on the upper side, and the bandage is arranged in the connecting hole. The stoma model is of a hollow columnar structure, the lower end of the stoma model penetrates through the connecting hole and extends to the position between the fixing bodies on the two sides, and the lower end of the stoma model is sewn to the base body on the upper side; the binding bands are symmetrically arranged on the two sides of the base body, the binding band on one side is provided with a hook-and-loop fastener hook portion, and the binding band on the other side is provided with a hook-and-loop fastener loop band movably connected with the hook-and-loop fastener hook portion. The simulation device is simple in overall structure and convenient to implement, the effect of adapting to and improving postoperative care in advance can be achieved, and postoperative complications are reduced.

The application discloses a flexible attached probe ground test active gravity unloading method, and belongs to the technical field of extraterrestrial exploration.The application realizes the method as follows: a flexible attached probe structure is constructed.The flexible attached probe comprises a body bearing plate, a buffer cylinder, a buffer support rigid body structure, and a flexible connecting structure.Motors are respectively connected with the mass center of the flexible rod and the mass center of the node, and the force required by each motor is determined according to a static balance equation.A flexible attached probe gravity unloading ground test system is established.The test system comprises a supporting device, a moving device and a control system.The force generated by the motor is transmitted to the gravity acting on the flexible attached probe through a suspension rope, a motor and a pulley set to complete the quantitative and accurate gravity unloading of the flexible attached probe ground test, and the real simulation of the dynamic characteristics of the flexible attached structure is realized.The application can realize low-frequency motion within a limited range and compensate for large deformation of the structure through multi-node gravity unloading.

The application discloses a kind of multi-loop power distribution cable overlapping state electromagnetic distribution characteristic simulation device and method, including power frequency power supply, phase modulation unit, flow unit, high-frequency signal coupling unit, multiple cable sections, multiple cable overlapping units, control unit and electromagnetic signal measurement unit, modular design is adopted, only by changing the position of cable connection plug can simultaneously simulate the overlapping state of multiple different cables, and different current loads and high-frequency signals can be applied simultaneously, the real simulation of cable group in cable channel can be realized.

An engine test bench air intake system comprises a supply source, a temperature simulation unit and a simulation cabin; the supply source comprises a fuel supply source, an oxygen supply source, an engine intake supply source and an alcohol supply source; the temperature simulation unit comprises a tube body and a shell, the tube body is located inside the shell, the tube body is a first medium channel, and the space between the outer wall of the tube body and the inner wall of the shell forms a second medium channel; the test engine is located in the simulation cabin; the fuel supply source is connected to the test engine through a pipeline, the oxygen supply source and the engine intake supply source are connected to the inlet of the second medium channel through pipelines respectively, the outlet of the second medium channel is connected to the air intake of the test engine through a pipeline, and the alcohol supply source is connected to the inlet of the first medium channel through a pipeline after passing through an igniter.

The invention discloses a thin film transistor-liquid crystal display (TFT-LCD) structure weak link identification and reliability evaluation method based on multi-physics field simulation. The method comprises the following steps: S1, establishing a refined finite element model of a TFT-LCD display module; s2, defining material constitutive parameters for each layer of material in the finite element model, wherein the constitutive parameters comprise a temperature dynamic change model of a thermal expansion coefficient; s3, based on the finite element model and the material constitutive parameters, constructing a transient thermal-mechanical coupling simulation model, applying a transient temperature load to the simulation model and solving, and simulating and outputting temperature field space-time distribution data and structural stress field and strain field space-time distribution data; and S4, based on the stress field and strain field space-time distribution data, identifying a structural weak link in the TFT-LCD display module, and performing reliability risk assessment. According to the method, the thin film transistor-liquid crystal display (TFT-LCD) structure weak links can be accurately identified in the design stage, quantitative risk assessment is carried out, and a theoretical basis is provided for product optimization design.

The invention discloses an integral type composite material propeller torque testing device which comprises a bottom plate, a first side plate and a second side plate are fixedly connected to the two sides of the bottom plate respectively, a rotating torque shaft is installed between the first side plate and the second side plate, a plurality of check blocks are fixedly connected to the inner side of the second side plate, and the check blocks are matched with blades of a propeller; the force arm connecting rod is provided with a force loading rod, the force loading rod is axially perpendicular to the force arm connecting rod, the two ends of the force arm connecting rod are both connected with torque loading arms, and the ends, away from the force arm connecting rod, of the two torque loading arms are assembled with the two ends, extending out of the first side plate and the second side plate, of the rotating torque shaft correspondingly. And the two torque loading arms are respectively positioned on the outer sides of the two side plates. The integral type composite material propeller torque testing device is simple in structure, greatly saves equipment, labor and time cost, and solves the problem that a loading device cannot simulate stress of blades in water due to mutual shielding of the blades of an integral type propeller.

The invention relates to the technical field of well drilling leaking stoppage fluid and pressure bearing capacity evaluation methods, in particular to high-pressure-bearing leaking stoppage slurry and a pressure bearing capacity evaluation method based on a 3D printing artificial rock core. The high-pressure-bearing leaking stoppage slurry comprises water, fine walnut shells, plant fibers, inorganic rigid particles and gel; the inorganic rigid particles are composed of leaking stoppage materials with different particle sizes, different types and different strengths. According to the method, an existing QD-2 leaking stoppage instrument is transformed, the 3D printing technology is combined to simulate the width and the surface roughness of the rock core crack, and the pressure bearing capacity evaluation method which is better in crack simulation reduction degree and higher in experiment credibility is formed. Wherein the high-pressure-bearing leaking stoppage slurry is composed of leaking stoppage materials with different particle sizes, different types and different strengths, a high-strength leaking stoppage layer can be formed, so that the pressure-bearing capacity of a stratum is improved, the pressure-bearing capacity of the leaking stoppage layer formed by the high-pressure-bearing leaking stoppage slurry is evaluated in combination with a pressure-bearing capacity evaluation method, and real simulation of underground conditions can be better achieved.

The invention provides a visual test system for simulating continuous sand-carrying fracturing, and belongs to the technical field of oil-gas field development. According to the method, the distribution of the proppant in the rock is detected in real time by simulating the whole process of hydraulic fracturing and sand-carrying fracturing of the rock in cooperation with a high-energy CT system, and the dynamic expansion characteristics of a fracture network and the migration and distribution rules of the proppant are obtained; through the permeability detection subsystem, permeability characteristics and flow conductivity change conditions of rocks before and after hydraulic fracturing and before and after sand injection are obtained. Fracturing physical model tests, fracture network feature CT scanning real-time monitoring and rock sample dynamic damage process visualization in different fracturing modes are achieved, and guidance is provided for fracture network morphological feature description, propping agent migration law research, fracturing transformation effect quantitative evaluation and fracturing construction optimization.