35results about How to "Guaranteed simulation" patented technology

A volume-reduction optimization method for three-dimensional solid model is based on three types of software including CATIA, three-dimensional engine Virtools and 3DMAX, employs CATIA to save a related CAD model in a specified format, then imports a related solid model into Virtools so as to carry out optimization operation on the solid model by use of Virtools and save the model by use of Virtools, and finally imports the solid model into 3DMAX to complete operations, such as material processing, texturing and baking, on the three-dimensional solid model. The method specifically comprises saving the three-dimensional solid model file in the specified format by use of the CATIA software; opening the three-dimensional solid model file by use of the Virtools platform; performing volume reduction processing on the three-dimensional solid model file by use of the Virtools platform; exporting the three-dimensional solid model; and importing the volume-reduced three-dimensional solid model by use of the 3DMAX software.

The invention discloses a shield tunneling machine three-dimensional virtual simulation system and a simulation method and mainly aims at solving the problems that a motion process of the shield tunneling machine can not be simulated in real time and roaming in the shield tunneling machine can not be realized in the prior art. According to the technical scheme, the simulation method comprises the following steps: firstly, constructing a shield tunneling machine three-dimensional model and optimizing; secondly, acquiring real-time working condition data of the shield tunneling machine by a sensor and transmitting to a data server; thirdly, acquiring data of the data server by a system server and carrying out data transformation, and transforming real-time working condition data of shield construction into data for driving the shield tunneling machine three-dimensional model to move; and fourthly, importing the shield tunneling machine three-dimensional model and the data for driving the shield tunneling machine three-dimensional model to move into a simulation environment to realize three-dimensional simulation of a shield tunneling machine construction process, historical playback of the shield tunneling machine construction process, roaming of a working scene of the shield tunneling machine and monitoring of a shield tunneling machine construction state, so that an operator knows the working principle and the actual working condition of the shield tunneling machine more directly and clearly. The simulation system and the simulation method which are disclosed by the invention can be applied to teaching and training of the working principle of the shield tunneling machine.

The invention belongs to the technical field of photoelectric image transmission, can be used for a plurality of aspects of dynamic scene simulation, optimum design and performance evaluation of the optical measurement system. The invention provides a design proposal and a hardware platform for implementing dynamic image transmission. A high speed data interface, a logical programmable device, a digital-analog conversion chip and a static memory are used for building a hardware platform, by rationally designing the firmware program, the device driver program and an upper computer application program, the high speed image data can be transmitted by the interface from the upper computer, a lower computer can generate row and field synchronizing signals on the microminiature liquid crystal pattern generator to display dynamic image by the XGA video form after buffer processing the image data. The invention introduces the microminiature liquid crystal pattern generator into the photoelectric image transmission technology for the first time, and takes the dynamic image on the microminiature liquid crystal pattern generator as the dynamic scene simulated background, decreases the dimension volume of the optical system, enables the system to be much more compact, and introduces the digitalization, automatization and microminiaturization into the optical parameter measuring instrument.

The invention relates to a method for producing three-dimension face cartoon, based on network topology model construction, wherein it comprises: first obtaining rare three-dimension motion catch data and three-dimension face curvature grid; then marking relative control point of motion catch data on the three-dimension face grid; using short distance as the shortest distance on the three-dimension curvature to build the models of topology structure and seam of three-dimension curvature; in the deformation of free curvature, using short distance to calculate the distance between control point and other points; using the displacement of control point as parameter and the radial basic function algorism matched with short distance to deform the three-dimension curvature, to generate the three-dimension face cartoon. The invention can obtain high-accuracy three-dimension face cartoon, effectively separate the seam and continuous curvature of face, and improve the producing efficiency.

The invention relates to an overall performance test platform for a passive reactor core cooling system of a large advanced pressurized water reactor nuclear power plant. An ACME test rack comprises aloop system and equipment completely simulating a prototype nuclear power plant, a system and equipment completely simulating a prototype nuclear power plant passive reactor core cooling system, a system and equipment partly simulating a reactor secondary circuit and a system and equipment partly simulating a reactor loop and connected with the reactor loop, wherein the loop system and equipmentcompletely simulates loop layouts of a four-in pipe and a two-out pipe of the prototype nuclear power plant, and the system and equipment completely simulating the prototype nuclear power plant passive reactor core cooling system proportionally simulates layouts and pipeline routs of the system and equipment.

The invention discloses a virtual machine and actual electrical machining simulation method for a five-axle number control machine tool, which is used for simulating the machining process of the five-axle number control machine tool. The method comprises the following steps: modeling the five-axle number control machine tool, i.e. performing simulation modeling and graphic displaying to the machining process of the five-axle number control machine tool; virtual machine tool motion and machining simulation, i.e. respectively simulating the motion and the machining of the five-axle number control machine tool; and data acquisition and transmission, i.e. detecting the variation of data quantity in a virtual environment through a data sensor and then a virtual mechanism is driven to move. The invention realizes the visualization inside a three-dimensional entity; a local refreshing technology is adopted on the graphic display aspect during the simulation of the machining process, so the simulation effect and the graphic display efficiency are ensured; and the multi-threading operational mode increases the response speed of the application program. The invention can greatly enhance the machining simulation precision of the five-axle number control machine tool.

The invention relates to the technical field of machine room monitoring, in particular to a machine room power distribution simulation page generation method and related equipment, and the machine room power distribution simulation page generation method comprises the steps: obtaining the basic information of each power distribution equipment in a machine room; adding primitives corresponding to the power distribution equipment in a page according to the basic information of the power distribution equipment, and generating an equipment layout diagram of a simulation page; and obtaining a connection relationship of the power distribution equipment, determining a connection path between the primitives in the equipment layout diagram according to the connection relationship of the power distribution equipment, and then carrying out connection to generate a simulation page. According to the method and the device, the simulation accuracy of the simulation page is improved, the time for connecting the wiring paths among the power distribution equipment and the space for storing the wiring paths are greatly reduced, and finally, the wiring efficiency among the primitives is improved.

The invention discloses a method for cooling and discharging high-temperature tail gas of an aircraft APU in an ultralow-temperature environment in a laboratory. The method comprises the steps: 1, performing fan type selection; 2, giving a safe set temperature for high-temperature tail gas emission of the APU of the airplane; 3, determining the heating temperature of the electric tracing band; 4, estimating the mass flow rate of water for spraying and cooling; 5, primarily cooling and discharging the high-temperature tail gas of the aircraft APU; 6, tail gas emission temperature detection and adjustment; and 7, continuously cooling and discharging the high-temperature tail gas of the aircraft APU. The laboratory exhaust port temperature sensor, the laboratory environment temperature sensor and the laboratory environment pressure sensor are used for detecting whether the indoor environment is balanced or not under the APU driving condition, then the fan type meeting the requirement is selected, it is guaranteed that the temperature and pressure in a laboratory are stable, the safety of aircrafts and testers is guaranteed, the heating temperature of the electric tracing band is determined, the water supply pipe is effectively prevented from being frozen and blocked, and the stability is still achieved in an ultralow-temperature environment in a laboratory.

The invention discloses a slow frequency-hopping communication experiment system of an industrial multi-hop link. The system comprises an industrial wireless multi-hop communication link, a serial port / ZigBee gateway and a monitoring host, wherein the industrial wireless multi-hop communication link comprises a plurality of communication nodes having a slow frequency-hopping communication function, each of the communication nodes is provided with an experimental antenna and a monitoring antenna, and the monitoring host is connected with the serial port / ZigBee gateway through a serial port. According to the system, dual antennas are arranged on the communication portion, communication nodes are provided with an experimental antenna system and a monitoring antenna system, and the experimental antenna system and the monitoring antenna system are separated from each other and are used for link experiment communication and gateway communication respectively, so that the experiment monitoring and the statistic analysis process do not occupy link communication resources basically, and the simulation performance of the experiment process is guaranteed; and a monitoring computer system monitors and sets each of the communication nodes through wireless communication, so that the experiment system is good in deployment flexibility and expandability and has application and popularization values.

The invention relates to a multi-scale model design method for a shield tunnel vibration test bench. The method is used for building the multi-scale model of the shield tunnel, and the method comprises the following steps: building a refinement pipe ring part; building an average equivalent pipe section part; and alternately splicing the refinement pipe ring part and the average equivalent pipe section part according to the proportion, and obtaining the multi-scale model of the shield tunnel. Compared with the prior art, the method has the advantages of simplifying the model making process, saving the model making cost, simplifying the model splicing process and accurately reflecting the macroscopic response and detail dynamic response of the shield tunnel.

The invention discloses a vertical air pressure control system of an air bearing table and a control method thereof and belongs to the field of aero-spatial physical simulation tests. The vertical air pressure control system of the air bearing table aims at solving the problem that an existing air bearing table is low in vertical motion freedom degree and accordingly the simulation effect is poor. The control system comprises a displacement sensor, a pressure sensor and a controller. The displacement sensor is installed on the inner side of an air cavity of the air bearing table and used for measuring moving displacement of an upper table body on the air bearing table. The pressure sensor is installed between the air cavity and the external environment and used for differential measurement of the pressure in the air cavity. The controller is used for controlling a proportional pressure regulation valve and an air inlet valve of the air bearing table according to data measured by the displacement sensor and the pressure sensor, regulating the air pressure of the air cavity to form closed-loop control, achieving displacement control and constant pressure control and achieving vertical freedom degree of the upper table body. The vertical air pressure control system is used for a vertical air pressure control mechanism of the air bearing table. An accurate initial pressure value is obtained through displacement control, then the vertical freedom degree of the air bearing table is ensured through a pressure tracking link, and the simulation effect is ensured.

The invention discloses improved bionic bait, comprising a bait body, hook rings, and strengthening rings. The strengthening rings and the hook rings are designed integrally, and are made of steel materials and are formed by one-time injection molding stamping. The strengthening rings and the hook rings are arranged in the bait body. Annular holes of the hook rings extend out of the bait body, and are used to connect with fishhooks. The bait body is in a double-layer structure, and comprises an inner layer and an outer layer. The outer layer wraps the inner layer. The outer surface of the inner layer or the inner surface of the outer layer of the bait body is sprayed with color paint. The outer layer is adhered on the inner layer through a sticking method. The number of hook rings is three, and the hook rings are respectively arranged on the head, the middle part, and the tail part of the bait body. The integrated structure of the strengthening rings and the hook rings is designed, and structural design of the inner layer and the outer layer is used, the color coating is arranged on the outer surface of the inner layer or the inner surface of the outer layer, and even though a bionic bait product is stored for a long time, a problem that bearing capacity of the hook rings reduces would not easily occur, and simulated effect of the bionic bait is maintained for long time, and pollution on environment is greatly reduced.

The invention discloses a bending resistance testing system for a single column leg of a three-post insulator of GIL equipment. The bending resistance testing system comprises a three-post insulator tool, a thrust testing mechanism and a terminal mechanism which are connected in sequence, wherein the three-post insulator tool is used for fixing the tested three-post insulator; the thrust testing mechanism comprises a motor, a thrust sensor, a displacement sensor and a strain gauge; the terminal mechanism comprises a terminal machine and an oscilloscope. The bending resistance testing system for the single column leg of the three-post insulator of the GIL equipment provided by the embodiment of the invention is reasonable and simple in framework, clear and intuitive, can accurately determine the bending resistance of a column leg insert of the three-post insulator in actual GIL application, is convenient to use, and greatly facilitates the collection and acquisition of performance information by technicians.

The invention provides an acquisition terminal fault simulation method. The method comprises the following steps: constructing a simulation power grid comprising a plurality of acquisition terminals;acquiring a fault instruction, and acquiring a terminal address and a fault code by analyzing the fault instruction; controlling an acquisition terminal corresponding to the terminal address to simulate a fault according to the fault code; for the fault codes needing data support, after the acquisition terminal requests the fault simulation data from the upper computer, performing fault simulationin combination with the fault codes and the fault simulation data. By providing the fault simulation data, the historical data of the corresponding acquisition terminal can be modified to further simulate the fault with historical time delay, so that the fault simulation range is expanded, and the fault simulation flexibility is improved. The acquisition terminal fault simulation method providedby the invention realizes intelligent identification of the operation instruction, can be realized through an integrated module, and is simple to operate and easy to popularize.

The invention discloses a robot fish tank. The robot fish tank consists of an ordinary fish tank (1), an emulated algae plant (2), white sand (3), a robot fish (4) and a wireless charging emitter (5), wherein the white sand (3) is paved at the bottom of the ordinary fish tank (1); the emulated algae plant (2) and the robot fish (4) are located in the ordinary fish tank (1); and the wireless charging emitter (5) is mounted on one side of the ordinary fish tank (1). The robot fish tank as a decoration is used for beautifying environment, the trouble that people buy fishes, feed the fishes and replace water is omitted, and the robot fish tank is one of essential goods for family life and is worth wide popularization.

The invention discloses a rapid transmission method of model data in distributed simulation of power equipment. The method comprises the steps of constructing a network topological graph of each site in a simulation system of the distributed power equipment, obtaining mean data transmission time between the sites, generating a shortest path tree taking a target site as a root node by using a Dijkstra's algorithm, generating a structure tree of a simulation model, analyzing a required submodule in a target included in each site, forming a submodule transmission candidate list, carrying out submodule transmission path planning from small to large from a leaf node according to the transmission time based on the list and the structure tree of the model to achieve rapid distributed transmission of the simulation model of the power equipment. The method greatly improves model transmission efficiency in the distributed simulation system, shortens the transmission time of a model network, and therefore ensures a simulation effect and continuity.

The invention relates to the field of sediment model tests, in particular to a bed load grading determination method and device and electronic equipment.The method comprises the steps that a sediment adding test model is established according to a to-be-tested water area to ensure that the environment of the to-be-tested water area is simulated, and meanwhile water area parameters of the to-be-tested water area are obtained; sand adding gradation is determined according to the water area parameters; sand adding is conducted on the bed load in the sand adding test model according to the sand adding grade, and the bed load after sand adding is obtained; the bed load after the sand is added is sampled so as to obtain the sampling gradation of the bed load after the sand is added; the bed load gradation corresponding to the water area to be tested is accurately determined according to the sampling gradation and the sand adding gradation, and then it is guaranteed that the sand adding test model can accurately simulate the water area to be tested.

The invention belongs to the technical field of bionic machinery, and in particular relates to a vertical mechanical jellyfish. The invention includes more than two groups of bionic jellyfish feet uniformly distributed in the circumferential direction around the fixed shaft; the fixed shaft outer is provided with a transmission shaft that can perform reciprocating linear motion along the axis of the fixed shaft, and the transmission shaft forms a dynamic cooperation with the power output end of the linear power source; There is an avoidance hole in the middle section of the shaft in the radial direction, the coaxial sleeve outside the transmission shaft is set to the sleeve, and the connecting plate extends radially from the fixed shaft to the avoidance hole, and the directional sleeve is fixed with the connecting plate; the directional sleeve and the transmission The axis corresponds to the first hinge point, the second hinge point, the third hinge point and the fourth hinge point of the bionic jellyfish foot. The invention can use the high bionic action function of jellyfish, on the one hand, it can be used as a scientific and educational tool to show the actual action state of jellyfish in nature with its own high degree of simulation; on the other hand, it can also provide simulation basis for unmanned underwater vehicles .

The invention relates to a modal test suspension device and a modal test system, belongs to the technical field of modal test parameter measurement, and solves the problems of complex operation and small application range of an air spring in modal test boundary condition simulation in the prior art. A modal test suspension device comprises: a suspension assembly; the suspension assembly comprises a plurality of steel springs, and the technical parameters of the steel springs are determined according to the weight and fundamental frequency of the test piece; the multiple steel springs are arranged in parallel, and at least one set of steel springs is formed by connecting the multiple steel springs in parallel. The device also comprises a crane crossbeam, the crane crossbeam is connected with a plurality of lifting chains, and each steel spring and each group of steel springs respectively suspend the test piece on the lifting chains through lifting hooks. According to the invention, the suspension assembly is arranged and the test piece is suspended on the suspension assembly, so that high-precision parameter measurement of a modal test of the test piece with relatively large size, weight and low fundamental frequency can be facilitated.

The invention discloses a shield tunneling machine three-dimensional virtual simulation system and a simulation method and mainly aims at solving the problems that a motion process of the shield tunneling machine can not be simulated in real time and roaming in the shield tunneling machine can not be realized in the prior art. According to the technical scheme, the simulation method comprises the following steps: firstly, constructing a shield tunneling machine three-dimensional model and optimizing; secondly, acquiring real-time working condition data of the shield tunneling machine by a sensor and transmitting to a data server; thirdly, acquiring data of the data server by a system server and carrying out data transformation, and transforming real-time working condition data of shield construction into data for driving the shield tunneling machine three-dimensional model to move; and fourthly, importing the shield tunneling machine three-dimensional model and the data for driving the shield tunneling machine three-dimensional model to move into a simulation environment to realize three-dimensional simulation of a shield tunneling machine construction process, historical playback of the shield tunneling machine construction process, roaming of a working scene of the shield tunneling machine and monitoring of a shield tunneling machine construction state, so that an operator knows the working principle and the actual working condition of the shield tunneling machine more directly and clearly. The simulation system and the simulation method which are disclosed by the invention can be applied to teaching and training of the working principle of the shield tunneling machine.

The invention discloses a design method for a heart failure model of a human ventricular muscle tissue, and belongs to the technical field of virtual human hearts. Heart failure is taken as a research object, and myocardial electrophysiological and mechanics characteristics and a spiral wave dynamics mechanism under heart excitation-contraction coupling are discussed to discover a relationship of interaction between the heart failure and arrhythmia. A TP06 model simulates a single ventricular muscle cell of a human body, then the TP06 model is coupled to an NHS08 model, and an ECC model is built; based on an improved TP06 model and existing data, a human ventricular heart failure muscle cell model is built, and the electrophysiological and mechanics characteristics of human ventricular muscle cells, an action potential duration restitution curve and an early afterdepolarization restitution curve under normal and heart failure conditions are compared; finally by adding coupling among the cells, a two-dimensional single-layer myocardial tissue action potential conduction model is successfully built, and spiral waves are induced by adopting a ''wave shearing method''; and then, dynamics characteristics of the spiral waves under the normal and heart failure conditions are compared.

A volume-reduction optimization method for three-dimensional solid model is based on three types of software including CATIA, three-dimensional engine Virtools and 3DMAX, employs CATIA to save a related CAD model in a specified format, then imports a related solid model into Virtools so as to carry out optimization operation on the solid model by use of Virtools and save the model by use of Virtools, and finally imports the solid model into 3DMAX to complete operations, such as material processing, texturing and baking, on the three-dimensional solid model. The method specifically comprises saving the three-dimensional solid model file in the specified format by use of the CATIA software; opening the three-dimensional solid model file by use of the Virtools platform; performing volume reduction processing on the three-dimensional solid model file by use of the Virtools platform; exporting the three-dimensional solid model; and importing the volume-reduced three-dimensional solid model by use of the 3DMAX software.

The invention discloses a containing and storage mechanism of virtual simulation equipment and a using method of the containing and storage mechanism. The containing and storage mechanism comprises a base, a sliding structure is arranged on the base, a protective cover is arranged on the base, a display screen is arranged on the inner side wall face of the protective cover, and a lighting structure is arranged on the top face of the inner side of the protective cover. The containing and storage mechanism has the beneficial effects that the virtual simulation equipment is protected through the protective cover and a closed structure, when the virtual simulation equipment needs to be used, the closed structure and the sliding structure are controlled to work to enable the virtual simulation equipment to leave the protective cover, the temperature and brightness in the protective cover are adjusted through the lighting structure and a heat dissipation structure, and the simulation effect is guaranteed; and the containing and storage mechanism prevents dust from accumulating on the virtual simulation equipment, the cleaning frequency is reduced, the workload of operators is reduced, the virtual simulation equipment is prevented from being collided, the maintenance cost of the virtual simulation equipment is controlled, and the service life of the virtual simulation equipment is prolonged.

The invention belongs to the technical field of bionic machinery, and particularly relates to a vertical mechanical jellyfish. The vertical mechanical jellyfish comprises more than two groups of bionic jellyfish feet which are uniformly distributed around a fixed shaft in the circumferential direction, a fixed shaft is sleeved with a transmission shaft capable of doing reciprocating linear motionalong the axis of the fixed shaft, and the transmission shaft is in power fit with the power output end of the linear power source. A receding hole penetrates through a middle section shaft body of the transmission shaft in the radial direction, the transmission shaft is coaxially sleeved with a directional sleeve, a connecting plate extends out of the receding hole in the radial direction of thefixed shaft, and the directional sleeve is fixed to the connecting plate. And the directional sleeve and the transmission shaft are correspondingly hinged with a first hinge point, a second hinge point, a third hinge point and a fourth hinge point of the bionic jellyfish foot. Through the high bionic action function on jellyfishes, on one hand, the jellyfishes can be used as a science and education tool, and the actual action state of the jellyfishes in the natural world is shown through the high simulation degree of the jellyfishes; and on the other hand, a simulation basis can be provided for the unmanned underwater vehicle.

The invention discloses a slab staggering simulation device for calibrating a slab staggering detection device and a use method thereof. The slab staggering simulation device for calibrating the slab staggering detection device comprises a support pedestal, two hollow steel plates used for forming the staggering slab are connected on the support pedestal through the electric flexible rods, each hollow steel plate is connected with the support pedestal through four electric flexible rods, the top of the electric flexible rod is connected with four corners of the hollow steel plate through the universal spherical hinge supports; the slab staggering simulation device further comprises a controller, the controller is connected with the control ends of the electric flexible rods through a data connection wire. The existing slab staggering detection device can be exactly calibrated by the slab staggering simulation device and the existing detection device is improved or calibrated.

The invention discloses a method for generating a virtual-reality three dimensional road, and the method comprises the steps: determining a road basic grid according with the contour of a road; generating a three-dimensional road grid, attached to the ground, in the ground grid range where the road basic grid is located based on the road basic grid through employing a grid dynamic segmenting method; rendering a three-dimensional road based on a three-dimensional road grid, and obtaining the three-dimensional road attached to a three-dimensional ground. The method can enable the three-dimensional road to be attached to a three-dimensional ground, reduces the calculation resources under the condition of guaranteeing the simulation effect, and improves the rendering efficiency.