73results about How to "The simulation effect is real" patented technology

The invention discloses a method for producing large-scale groups in a three-dimensional animation production process, which comprises the following steps: A, creating a plane; B, creating a particle emitter on the plane, wherein the particle emitter is used for generating a plurality of particles and each particle represents an individual in the groups; C, drawing a generating area of the particles, wherein the particles appear in the area according to set parameters; D, drawing a path of the particles, wherein the particles move according to the set drawn path; E, repeating the steps B, C and D, and creating a plurality of groups of crowds on the plane created by the step A; and F, randomly substituting a loop animation of group movement with the particles and adjusting the parameters according to needs. The method for producing the large-scale groups in the three-dimensional animation production process can adjust the large-scale groups which are high in degree of realism and can deal with complicated scenes.

The invention discloses a simulation system for physical properties and digital attributes of a textile fabric and a measurement method. The simulation system comprises a computer system, fabric simulation software, a fabric physical property measurement device and a fabric scanning system, wherein the fabric simulation software is arranged in the computer system; the fabric physical property measurement device and the fabric scanning system are connected with the computer system separately; the computer system is provided with a data output port; and various physical data during fabric measurement and data during fabric scanning are subjected to operation work through the computer system. The real visual effect of the physical attributes of the garment fabric can be quickly and virtually shown, the technical problems of distortion and deficiency of various physical attributes of the garment fabric simulated by three-dimensional garment simulation software in the market at present are successfully solved, and the realistic design effects of various dresses, work clothes, underwear, three-dimensional embroideries and the like can be shown.

The invention provides a simulation equipment of twin-roll strip roll casting, which comprises a medium-frequency induction furnace, an online gas supplying apparatus, a temperature field measuring device near the surface of an online crystallization surface and an online molten pool temperature measuring device. The structure of the simulator of the equipment is that a bottom support, a track of the medium-frequency induction furnace and a limiting stop are disposed on the base plate, two vertical sliding bars are arranged between the bottom support and an upper horizontal channel steel stage, each sliding bar is provided with a big sliding barrel capable of sliding along the bar, an upper cross beam and a lower cross beam are connected between two big sliding barrels, the channel steel stage is equipped with a hydraulic equipment, the hydraulic equipment and the lower cross beam are connected by screws, a casting mold is fixed on a small sliding block by a rapid expansion link, the small sliding block can slide on the lower cross beam, roller on the small sliding block can roll along a curved guide rail to drive the casting mold to move, the curved guide rail is fixed on a supporting board which is fixed in a groove on the inner side of the bottom support. By simulation experiments, matching relationship of each processing parameter in roll casting process can be obtained. The invention is used to direct actual commercial manufacture.

The invention discloses a water tank test system for simulating the multi-field coupling effect of an offshore structure. The technical scheme is that the water tank test system comprises a water tankmain body, the bottom of the water tank main body is connected with a rock-soil test box, the rock-soil test box is disposed above an earthquake simulation system, water supply and drainage systems are installed on the two sides of the water tank main body, a flow making system is arranged at the bottom of the water tank main body, a wave generation system is installed in the water tank main body, and a truss system is installed at the top of the water tank main body. According to the invention, simulation of all loads of an offshore structure can be realized, and cooperative work among the water tank, the vibration table and the rock-soil test box can be realized.

The invention relates to a computer-executable simulated human body channel and point animation presenting system and method, comprising: a channel and point database; a channel related channel and point database, where each channel related channel and point data is established according to a group of related channel and point data each channel relates to; a body object constructing module, internally established with and indicating a group of body objects relative to channels and points; a channel sequence rule library, storing multiple channel related channel and point sequences; a channel and point sequence control module, selecting the human body channel and point data or the channel related channel and point data to output a group of channel sequence signals of the groups of body objects and channels and points; and a channel sequence animation output module, receiving the group of channel sequence signals, and utilizing sequential channel and point displacement display to simulate human body channels and points and present them by animation. By computer animation technique, it simulates human body channels and points and dynamically presents them, and presents linear flowing pictures of channels and points from the inside outward.

The invention discloses a balloon expansion animation simulation method based on a finite element method. The method comprises the following steps of: setting intensity of pressure of gas, balloon density, and balloon initial thickness, reading data from an obj model as un-deformed shape of the balloon, wherein the data comprise junction position and triangle information; performing pre-computation on the model, namely computing the quality of each junction, initial volume of the balloon and the like; calculating out each junction elasticity and gas pressure based on the finite element method, and calculating out the position and speed of each junction at next time by Newton-Raphson iteration method; correcting the calculated out the new position and speed by a volume keeping algorithm, in the way, the volume of the balloon is accordant with the initial volume; rendering the model by POV-Ray software as the image of the next frame; performing the calculation of the next frame by using the new result as the current position, until the balloon is stable and does not deform again. The method disclosed by the invention is simple and efficient, is applicable to deformation of a volume-keeping thin-shell model; and the relatively real expansion effect of the balloon and different effects of balloon with different thicknesses during deformation can be realized.

The invention discloses an autonomous global navigation chart (GNC) simulation test system based on optical and inertial combined measurement. The autonomous GNC simulation test system comprises an integrated sensor, a dynamic celestial body and fixed star simulator, a GNC module, a dynamics simulation and environmental simulation module, a radio velocity measurement and ranging simulator, a simulation master control module and a three-axis turntable. The integrated sensor is introduced into the simulation test system, the attitude motion of a spacecraft is realized by employing the three-axis turntable, the dynamic characteristics and spatial environmental disturbance of a deep space spacecraft are simulated by employing the dynamics simulation and environmental simulation module, and the dynamics and external environmental characteristics of the deep space spacecraft are really and reliably simulated.

The invention belongs to the technical field of subway construction, and discloses a test system for simulating karst covering soil collapse caused by subway vibration in a karst area. The system comprises a geological detection module, a geological classification module, a karst sample acquisition module, a karst sample analysis module, a central control module, an information gathering module, a subway information acquisition module, a three-dimensional model construction module, a subway simulation operation module and a data recording and display module. According to the method, the geological classification of the karst area is achieved through geological detection, geological samples of different types are collected, the obtained karst samples are more representative, and the construction of the three-dimensional model of the karst area is more accurate; the subway vehicle information, the subway operation information and the subway tunnel information are integrated by obtaining the subway information, the simulation of subway vibration in the karst area is facilitated, the simulation effect is more real, the obtained karst covering soil collapse result is more accurate, and suggestions are provided for subway planning.

The invention discloses a manufacturing method of a river model. The manufacturing method comprises the steps of 1, simulation area selecting; 2, manufacturing material selecting; 3, model manufacturing site selecting; 4, model manufacturing; and 5, roughening. The river model manufactured through the manufacturing method can truly simulate a real river and facilitates scientific research.

The invention discloses a self-adaptive driving method for a clothing model. The method comprises the following steps: making a three-dimensional model of clothing; constructing a three-dimensional standard human body model; fitting the three-dimensional clothing model to the three-dimensional standard human body model in the initial posture; obtaining posture parameters of the three-dimensional target human body model; inputting the plurality of groups of obtained posture parameters into a three-dimensional standard human body model for fitting; the human body model is driven to move from the initial posture to the target posture in an equipment self-adaption mode; and obtaining a target human body model which is the same as the target human body posture and wears clothes. Through the innovative application of the equipment adaptive algorithm, in the matching of the clothes model and the human body model, the authenticity and the reduction degree of the three-dimensional clothes model are kept, a certain processing speed is also ensured, most importantly, no mold penetration is basically ensured, and a very good simulated clothes changing effect is obtained.

The invention discloses a fatigue driving simulation method. The method comprises steps of S1, setting degree of fatigue parameters; and S2, in the fatigue simulation process, simulating blurred vision and eyelid opening and closing circulation of a fatigue driver in a visual picture of a driving simulator according to the degree of fatigue parameters. The fatigue driving simulation method disclosed by the invention simulates fatigue driving conditions in the visual picture of the driving simulator based on the set degree of fatigue parameters, so that the driver can well realize harm caused by fatigue driving, thereby being significant for protecting the driver security and reducing traffic accidents. In addition, based on the initial value and the maximal value of the set degree of fatigue, the degree of fatigue is gradually increased from the initial value, and simulation of blurred vision and eyelid opening and closing is carried out in each degree of fatigue, and thus the actual condition that the degree of fatigue is increased gradually in the fatigue driving, and the simulation effect is more real.

The invention relates to an evaluating platform and an evaluating method for a fire smoke parameter of cable in multiple scenes. The evaluating platform comprises a cable duct well simulation chamber, a radiation heating device, a refractory ceramic plate, an analytical balance, an overload over-current simulating device, a temperature measuring device, a gas analyzing device, an optical smoke density measuring device, a data collecting system, an integrated control console, a frequency conversion fan and a smoke collecting pipeline, wherein a measuring end of the optical smoke density measuring device comprises a red light direct emitting, blue light direct emitting and scattering light source; a to-be-detected cable is arranged on the refractory ceramic plate and a power source is switched on, two thermocouples are arranged on the surface and interior of the to-be-detected cable, the balance, the optical smoke density measuring device and the gas analyzing device are debugged and analyzed, the air speed of the frequency conversion fan is selected, the overload, over-current and/or external heat source radiation firing scene is selected and the simulation test is started. According to the invention, various firing scenes can be simulated on a same platform and the compound research on the fire cable quality loss, temperature change, smoke component and smoke shading property of the cable can be performed.

The invention discloses a test system for simulating the multi-field coupling effect of an offshore wind power rock-socketed pile. The test system comprises a water tank body, the offshore wind powerrock-socketed pile is arranged in the water tank body, the offshore wind power rock-socketed pile is arranged in a rock-soil test box, and the rock-soil test box is arranged on an earthquake simulation system; a turning wind field simulation system is arranged on one side of the offshore wind power rock-socketed pile and can provide a wind field with 180 DEG spatial change; and a wave generation system is mounted in the water tank body, a water supply and drainage system is installed on the side face of the water tank body, and a flow generation system is arranged at the bottom of the water tank body. Simulation of all loads can be realized, 180 DEG real-time conversion simulation of the typhoon wind direction can be realized, and cooperative work among the water tank, the vibration tableand the rock-soil test box can be realized.

A distributed runoff producing device for generally simulating the karst landform is a hydraulic engineering simulation test device and comprises a bottom layer relief model and runoff producing units arranged on the bottom layer relief model, wherein the runoff producing units are spliced horizontally, and the bottoms of every two adjacent runoff producing units are communicated with each other through a U-shaped hose. Each runoff producing unit comprises a runoff producing barrel and percolation cloth built in the runoff producing barrel, wherein a convergence way is arranged on the top of the runoff producing barrel and connected to a surface runoff convergence groove, a convergence pipe is arranged at the bottom of the runoff producing barrel and connected to an underground runoff convergence groove, and the downstream portion of the surface runoff convergence groove and the downstream portion of the underground runoff convergence groove are connected with a measuring weir. The bottom layer relief model is manufactured according to the research area through equal proportion shrinkage, part of rainwater penetrates into the runoff producing barrels through the percolation cloth, rainwater in the runoff producing barrels enters the underground runoff convergence groove through the convergence pipes, rainwater left on the percolation cloth enters the surface runoff convergence groove through the convergence ways, the water-carrying capacity is measured through the measuring weir, and the test result is obtained through analysis and calculation.

The invention discloses a WRF-based weather simulation method and system and a readable storage medium, the modes are judged according to different weather simulation requirements, different modes areadopted for simulation, the weather simulation precision can be improved, and the simulation processing speed can be increased. And by dynamically adjusting the long-period analysis coefficient and the short-period analysis coefficient, the simulation effect is closer to the actual numerical value when the high-precision simulation requirement is met. According to the invention, the simulation effect is corrected in the simulation process, so that the simulation effect is more real.

The invention discloses a foundation detection device and a detection method thereof, and belongs to the technical field of foundation detection equipment. The foundation detection device comprises adetection box and a liquid storage box; the detection box is connected with a first spherical hinge base; a first hydraulic rod is rotationally connected into the first spherical hinge base; a telescopic rod is slidably connected into the first hydraulic rod; a working box is connected to the bottom of the liquid storage box; a second spherical hinge base is arranged on the working box; the telescopic rod is rotationally connected into the second spherical hinge base; a mounting groove is formed in the liquid storage tank; a booster pump is connected in the mounting groove; the liquid storagetank is communicated with the working box through the booster pump; a flow meter is arranged on the booster pump; a flow dividing face is arranged at the bottom of the working box; flow dividing holesare evenly distributed in the flow dividing face; a compaction mechanism is arranged on a housing of the working box; a base is connected to the housing of the detection box; and a lifting mechanismis arranged on the base. The real rainfall and the foundation compactness are simulated to the maximum extent through the floating type working box, so that the high-reliability load and the anti-pulling bearing capacity are obtained.

The invention discloses a small-target light source generating and simulating system, which comprises a light source and a small target generating assembly for reflecting light emitted from the light source to generate a small target; the small-target light source generating and simulating system also comprises a light guiding assembly which is arranged between the light source and the small target generating assembly and is used for guiding the light emitted from the light source to the small target generating assembly. The small-target light source generating and simulating system is convenient in operation, is high in precision and can perform quantitative control on the random occurrence condition of the small target, data collecting for the small target becomes convenient and feasible while the channel lighting design is facilitated and massive human eye reaction data, under different states, for the small target are obtained; massive effective data can be obtained in the range of cost controlling, test expenditure is reduced, energy consumption in the test process can be effectively saved by resolving, machining and improving a background light source, and the small-target light source generating and simulating system accords with the current concepts of energy saving and environment friendliness.

The invention discloses a method for simulating real environment after floor in a room is changed. The method comprises: (1) realizing preliminary establishing of a three-dimensional model in a room;(2) through an illumination intensity detection apparatus, detecting illumination intensity F1, F2, and F3 of positions of a window, a door, and a three-dimensional space tracking positioner, throughthe F1, F2, and F3, calculating a function relation corresponding to illumination intensity and distances; inputting the function relation into a three-dimensional model establishing system, to obtaina light intensity arrangement method; illumination intensity of a certain spatial point being sum of illumination intensity of light on the position and illumination intensity of natural light of a window position on the position; (3) obtaining a floor picture and specifications and a corresponding region segmentation method; (4) when a floor which needs showing is selected, using the region segmentation method corresponding to the floor specification, and filling the floor picture on a plane where the floor is in. The method can preferably realize real simulation of indoor illumination angles and intensity.

The invention provides a slope interflow simulation device and a method for simulating interflow. An existing interflow simulation device is difficult to really reflect the actual migration conditionof the interflow. In the invention, the above problem is solved. The device comprises a foundation groove and a slope control groove. The slope control groove is located above the foundation groove and sleeves the outer side of the foundation groove. A sealing component is arranged between the foundation groove and the slope control groove. The left end of the slope control groove is hinged to thetop of the left side surface plate of the foundation groove. A right arc surface plate matches with the right side surface plate of the foundation groove. A front sector plate and a rear sector platematch with the front surface plate and the rear surface plate of the foundation groove. The slope control groove can move up and down on the outer side of the foundation groove around a rotating shaft under the effect of an angle adjusting device so as to adjust a simulation slope. The two grooves adopt a transparent hard material and are provided with observation scale nets. A soil structure filled with the device is the same with an actual slope, and the structure with a thick soil layer in the upper portion of the slope and a thin soil layer in a lower portion is presented, which can trulyreflect the actual migration condition of the interflow.