2399 results about "Dynamic simulation model" patented technology

This invention describes computer based virtual models of complex systems, together with integrated systems and methods providing a development and execution framework for visual modeling and dynamic simulation of said models. The virtual models can be used for analysis, monitoring, or control of the operation of the complex systems modeled, as well as for information retrieval. More particularly, the virtual models in the present implementation relate to biological complex systems. In the current implementation the virtual models comprise building blocks representing physical, chemical, or biological processes, the pools of entities that participate in those processes, a hierarchy of compartments representing time-intervals or the spatial and / or functional structure of the complex system in which said entities are located and said processes take place, and the description of the composition of those entities. The building blocks encapsulate in different layers the information, data, and mathematical models that characterize and define each virtual model, and a plurality of methods is associated with their components. The models are built by linking instances of the building blocks in a predefined way, which, when integrated by the methods provided in this invention, result in multidimensional networks of pathways. A number of functions and graphical interfaces can be selected for said instances of building blocks, to extract in various forms the information contained in said models. Those functions include: a) on-the-fly creation of displays of interactive multidimensional networks of pathways, according to user selections; b) dynamic quantitative simulations of selected networks; and c) complex predefined queries based on the relative position of pools of entities in the pathways, the role that the pools play in different processes, the location in selected compartments, and / or the structural components of the entities of those pools. The system integrates inferential control with quantitative and scaled simulation methods, and provides a variety of alternatives to deal with complex dynamic systems and with incomplete and constantly evolving information and data.

A system for dynamic treatment simulation for radiotherapy. Software is implemented on a computer system to perform dynamic simulation by displaying every segment of dynamic treatment beams on top of real-time fluoroscopic image sequences. Automated distortion correction of the fluoroscopic image due to the image intensifier is performed in real-time. A respiration phase indicator measures changes in circumference of the patient's chest through the movement of a radio-opaque marker that appears directly in the fluoroscopic images of the patient.

The invention discloses a cross-platform extendible satellite dynamic simulation test system, which comprises a satellite attitude control system simulator, a flight environment and motion simulator, a satellite basic subsystem simulator and an operation monitoring and management system simulator. The satellite attitude control system simulator comprises a sensor simulator, a controller simulatorand an actuating mechanism simulator; the flight environment and motion simulator comprises an orbit and attitude dynamics resolver, a celestial body simulator, a kinematics and dynamics turntable, akinematics and dynamics translation platform, a hot vacuum and electromagnetic environment simulator and the like; and the satellite basic subsystem simulator comprises a power supply subsystem simulator and a remote measuring and remote control subsystem simulator. The operation monitoring and management system simulates functions of a satellite ground measurement and control center, such as remote measuring data decoding, remote control command generating, data archiving and analyzing and operation managing. The cross-platform extendible satellite dynamic simulation test system has strong extendibility, can be conveniently transplanted on a development and debugging platform, a distributed real-time simulation platform and an embedded semi-physical real-time simulation platform.

Gaming devices, gaming systems, methods of conducting a wagering game, and computer programs for initiating a wagering game are presented herein. A gaming device is presented that includes a wager input device for receiving wagers from players to play a wagering game, and a display for displaying outcomes of the wagering game. The gaming device also includes a multi-layer composite lighting assembly with a first light-emitting layer, a second light-emitting layer, and a spacer. The first light-emitting layer emits light of a first color in a first direction, whereas the second light-emitting layer emits light of a second color in a second direction. The spacer, which is interposed between the first and second light-emitting layers, diffuses and focuses light emitted by the second light-emitting layer through the light emitted by the first light-emitting layer to thereby create a three-dimensional simulation of a component of the wagering game.

A BIM based metro constructiontechnique method comprises the implementing process that a metro construction site three-dimensional model is established, comprehensive pipeline collision checking is conducted, local complicated structures are visually analyzed, 4D dynamic simulation and analysis optimization are performed, model data information is extracted, and site layout and simulation are performed. By the adoption of the method, a metro engineering construction organization model in a complicated environment is established, the dynamic relation of progress, resources and site factors in the construction process is comprehensive considered, the complexity, uncertainty and randomness in construction can be well expressed, and the intuition,feasibility and scientificity of construction organization can be strengthened. The method is based on construction and endures in a whole metro construction life cycle. Due to the fact that the metro engineering BIM model used during implementation of the technique method provides accurate construction information for operation and maintenance of metro engineering, the management efficiency of the metro engineering is greatly improved by implementing the technique method, and a technical support is provided for achievement of scientific and technological metros and green metros.

A system for dynamic treatment simulation for radiotherapy. Software is implemented on a computer system to perform dynamic simulation by displaying every segment of dynamic treatment beams on top of real-time fluoroscopic image sequences. Automated distortion correction of the fluoroscopic image due to the image intensifier is performed in real-time. A respiration phase indicator measures changes in circumference of the patient's chest through the movement of a radio-opaque marker that appears directly in the fluoroscopic images of the patient.

The method according to the invention allows the formation of oil and the retention phenomenon in the mother rock to be modelled. Organic matter characterization experiments are used to establish the molecular model (MM) of the initial sample (E). The thermal cracking reaction of this molecular model is reproduced by dynamic molecular simulation computations with a reactive force field (RMD) and validated by comparison with experimental data. The reaction mechanism obtained (SR) allows to carry out a kinetic study (C) by variation of the temperature parameter. The phase equilibria (PES) of the reaction medium are determined at any time from dynamic simulation. The successive phase equilibrium assessments at various progress stages of the cracking reaction allow following the physicochemical evolution (PC) of the thermal maturation of the organic sample studied. The free hydrocarbons (liquid and gaseous) that are not retained in the solid residue can be quantified throughout numerical modelling of the sample maturation; representing, in the sedimentary basins, the hydrocarbons that are not retained in the organic matrix of the mother rock (Q). This quantity can be used as an indicator or an input value for the retention threshold in basin models.

The present invention generally relates to microfluidics and more particularly to the design of customized microfluidic systems using a microfluidic computer aided design system. In one embodiment of the present invention a microfluidic circuit design method is provided. The method includes developing synthesizable computer code for a design. Next, a microfluidic circuit schematic, including a plurality of symbols for microfluidic components, is generated either interactively or using the synthesizable computer code. The microfluidic circuit schematic is then functionally simulated. The microfluidic components are placed and routed on a template to form a physical layout. Then the physical layout is physically simulated using dynamic simulation models of the microfluidic components; and the physical layout is written to a layout file.

The invention relates to a CTCS-3 level train control system vehicular device simulation testing system and testing method. The system provides a user interface for selecting and executing a testing script, a vehicular device is tested by simulating running of a train on a line, and data in the testing process are recorded and used for subsequent analysis. The simulation testing system comprises a scene controller module, a train dynamics simulation module, a ground equipment simulation module, a data recording module, a station graph drawing module and a GUI (graphical user interface) module, wherein the scene controller module is used for reading and distributing the testing script and the testing data and controlling the testing process, the train dynamics simulation module is used for calculating the speed and the distance of the rain running on the line, the ground equipment simulation module is used for transmitting rail circuit information, transponder messages and wireless messages to the tested vehicular device, the data recording module is used for recording various testing result data, the station graph drawing module is used for drawing a station graph and displaying the position of the train on the line, and the GUI module is used for providing input testing initial information for testers, simulating driving of the train and repeating a graphical interface for the running state of the train in the testing process.

A method for simulating, analyzing and / or designing an automated assembly system including a plurality of resources comprises: defining at least one cell from an automated assembly line; associating an action table with each cell; calculating a duration, a success rate and a repair time for each process step using fundamental data of the resources; and associating the duration, the success rate and the repair time with each process step in each action table. The action table of a respective cell specifies all process steps that are executed in the respective cell. A system for simulating, analyzing and / or designing an automated assembly system comprises a discrete event simulator and a three-dimensional kinematic and dynamic simulator coupled with the discrete event simulator. The kinematic and dynamic simulator generates timing data for the automated assembly system that is used by the discrete event simulator. A system for determining a costed-throughput is also provided.

A system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system is disclosed. The system includes a data acquisition component, a power analytics server and a client terminal. The data acquisition component acquires real-time data output from the electrical system. The power analytics server is comprised of a virtual system modeling engine, an analytics engine and a UPS transient stability simulation engine.The virtual system modeling engine generates predicted data output for the electrical system. The analytics engine monitors real-time data output and predicted data output of the electrical system. The UPS transient stability simulation engine stores and processes patterns observed from the real-time data output and utilizes a user-defined UPS control logic model to forecast an aspect of the interaction between UPS control elements and the electrical system subjected to a simulated contingency event.

The invention relates to a transformer substation field operation management and control system and method based on three-dimensional dynamic modeling. The method comprises the following steps: performing three-dimensional dynamic modeling on a transformer substation; accurate positioning; based on the three-dimensional digital model, carrying out intelligent management and control on an operation site through intelligent identification and early warning; based on a three-dimensional digital model, performing live-action rehearsal and equipment simulation training on typical production operation and safety accidents through a virtual reality system. According to the invention, visual data support is provided for field operation work and personnel training work; real-time positioning and track checking of personnel and equipment are realized, and visual technical support is provided for remote intelligent management and control; an intelligent management and control means is provided for field operation safety, dynamic simulation of an operation task plan, typical operation, dynamic rehearsal of safety accidents and disassembly and reassembly analogue simulation of typical equipment are achieved, a visual simulation scheme is provided for field operation, operation risks are reduced, immersive training experience is provided, and training efficiency is improved.

The invention relates to a sub-module circuit board used for a dynamic simulation test for simulating a high-capacity multi-level modular converter (MMC). A digital controller on the circuit board is used for controlling a plurality of MMC sub-modules of which parameters are reduced according to an exponential method, the sub-modules are connected in series. Each MMC sub-module comprises a main circuit an insulated gate bipolar transistor (IGBT) and silicon controlled rectifier driving circuit, a capacitance and voltage sampling circuit, a circuit board isolation power supply, a control and coding-decoding chip shared by a plurality of sub-modules, and a fiber channel, wherein the main circuit a capacitor, two IGBTs which are connected vertically in series and connected with the capacitor in parallel, a bypass switch connected with the lower IGBT in parallel, and a silicon controlled rectifier which is used for protecting the IGBTs and the capacitor and connected with the lower IGBT.

The invention discloses a method for designing a distributed-type hydrographical model based on a penetration-storage integrated dynamic runoff yield mechanism, which relates to a method for designing a hydrographical forecast model, and mainly comprises the following steps that: A) acquiring distributed-type parameters; B) generalizing hydrographic process of a river basin; C) designing a penetration-storage integrated runoff generation process; and D) designing a junction process. The method is based on the penetration-storage integrated dynamic runoff yield mechanism to coordinate the distribution of water in the hydrographical sub-processes and to dynamically simulate the runoff generation process of grids, so not only can an advanced calculation and simulation platform be provided to other associated hydrographical ecological research such as sand generation and sand output of the river basin, transportation and movement of nutrients, dispersion of pollutants and the like, but also drought and flood hazards of the society can be reduced, scientific references can be provided to the reasonable development and utilization of the water resource, and scientific reference and reasonable suggestions can be provided to the management and scheduling of the water resource in China.

The invention relates to a strapdown inertial / satellite integrated navigation detecting system and a simulation testing method thereof. The system comprises a strapdown inertial subsystem, a satellite navigation subsystem, a navigation module and a control and display module, wherein the control and display module is connected with the strapdown inertial subsystem and the satellite navigation subsystem respectively to transmit track information; the strapdown inertial subsystem and the satellite navigation subsystem are respectively connected with the navigation module to transmit angular speed, accelerated speed and satellite signals; the output end of the navigation module is connected with the control and display module to feed an integrated navigation result back to the control and display module to form a closed-loop system. The system has real error characteristics. According to the system, optional tracks can be generated and do not need to be carried by actual carriers, so that the research and development cycle of an integrated navigation system is shortened, and the research and development cost is reduced; the real-time dynamic simulation on carrier movement according to a preset track can be realized and finished, and the universality is very strong.

An electric vehicle charging station load forecasting method is divided into a simplified method and a dynamic simulation method. The simplifying method comprises the following steps of counting a vehicle entering a station flow in a typical set time interval in a day by a historical statistics data so that a section curve description formula of an electric vehicle entering the station flow curve is obtained; solving the number of the vehicles entering in the station and being charged in the interval [t-TC, t]; and calculating active power at any time. The dynamic simulation method comprises the following steps of describing charging time by a normal distribution probability density function; performing counting and curve fitting to historical charging time to get a mean value and a standard deviation; and obtaining the whole number of the vehicles being charged and the charging power of the vehicles at every time in a day so that overall charging power of the charging station is calculated. The method is simple in arithmetic, definite in a data interface, fast in operation speed and capable of supporting dynamic interactive simulation of the electric vehicles in a large scale so that time and space distribution of charging load of the electric vehicles can be forecasted and the foundation method can be offered for studying influence on an electric power system by the charging load.

The invention discloses an automatic driving vehicle test simulation scene generation method, and belongs to the field of vehicle testing. Real road network information in a certain area is extracted based on a high-precision map, supplementary definition parameters of related roads and environments are generated based on a Monte Carlo method, and the supplementary definition parameters and the real road network information jointly form an automatic driving vehicle test static simulation scene. An initial state of a plurality of manual driving vehicles is generated based on a Monte Carlo method, and each manual driving vehicle is endowed with a driver module, so that the manual driving vehicle has basic logic judgment capability and driving behavior capability in vehicle driving, and an automatic driving vehicle test dynamic simulation scene is perfected. According to the automatic driving vehicle test simulation scene generation method developed by the invention, factors such as road conditions, traffic conditions, road identifiers and weather are comprehensively considered, rapid establishment of simulation and test typical scenes is realized, the problems of low test feasibility, long time consumption and high cost during automatic driving vehicle test are solved, and resource waste is avoided.

The invention relates to a high-speed dynamic simulation test method used for an electric mainshaft bearing. The electric mainshaft bearing comprises a frame, a main body pedestal, an axial loading cylinder, a test head assembly, a main body gland, a radial loading cylinder, a shaft coupling, a protecting hood, an electric mainshaft, a lubricating oil pipe, an axial loading oil pipe, a vibration sensor, a radial loading oil pipe and a temperature sensor and also a final assembly of all the parts. A hydraulic loading system is started to provide pressure oil to the axial loading cylinder and the radial loading cylinder, the electric mainshaft drives a test mainshaft to rotate, the radial loading cylinder exerts radial force on a first test accompanying bearing and a second test accompanying bearing through a radial loading sleeve, and the radial loading cylinder exerts axial force on a first test bearing and a second test bearing through an axial loading sleeve. The entire test is controlled by a computer to display parameters of the rotating speed, the axial load and the radial load, the oil pressure, the cooling water temperature, the bearing temperature, the bearing vibration, the power current of the electric mainshaft and the test time, and the parameters are saved in a computer database and analyzed.

Weight lifting simulator apparatus includes a primary pneumatic cylinder providing the principal resistance for simulating weight lifting exercise with at least one secondary cylinder in free fluid interconnection with the primary cylinder whereby constant and balanced loading is achieved, with provisions for dynamic simulation of weight inertia effect, and control thereof, as in lifting a real weight. The primary and the secondary cylinders are associated with a guideway, the primary cylinder being fixed to the guideway and the secondary cylinder being slidable relative to the guideway and pivotable relative to the piston rod of the primary cylinder. Variation of the securement position of the primary cylinder on the guideway is available and valving is provided in the fluid interconnection.

The invention discloses a parametric modeling method of a rigid-flexible coupled model. The method includes the steps of 1, establishing a rigid component model, 2, establishing an APDL macro file of a flexible body model, 3, establishing a rigid-flexible coupled system parametric graphical user interface, 4, inputting flexible body parameters in the interface and reading, altering and updating the APDL macro file, 5, executing the updated APDL macro file to build the flexible body model, 6, inputting rigid body model parameters, reconstructing a rigid body model, importing a flexible body modal neutral file and generating a command file containing a rigid-flexible coupled dynamics simulation model, 7, importing the command file, loading a virtual prototype model, conducting dynamics simulation analysis and outputting a simulation result and 8, outputting the optimum simulation data and storing a data file according to the simulation result. According to the rigid-flexible coupled model parametric modeling method, automatic creation of the parametric modeling of a flexible body and the rigid-flexible coupled model can be achieved, manual intervention is not needed in the whole process, the problem that it is difficult to parameterize the flexible body in the engineering practice is solved, the modeling efficiency is improved, and the method has very good engineering application value.

The invention pertains to the field of 'engine test equipment and test technologies', and relates to an airplane engine dynamic simulation test bed. The airplane engine dynamic simulation test bed consists of a 50-stitch interface definition, a left and right engine full privilege digital electronic controller, an engine electric control unit, an engine vibration detecting instrument, a testing part and a measuring and controlling system. The measuring and controlling system comprises a simulation / dispersion input interface card, measuring and controlling software of an embedded engine simulation model, a sensor simulation unit and an output interface card. The test bad has the advantages of complete function, high intelligent property, fast response time and capability of precisely simulating the dynamic and steady work process and fault monitoring result of the whole flight envelope internal power device system of an airplane by the engine simulation model, an electric simulation technology and a dynamic simulation technology under the condition of no real engine existing. The test bed can be used in the test study of a power device comprehensive control system of the whole system of the airplane and the function study of the airborne testing part.

The invention is a light flight simulator, belonging to a simulator to simulate air flight, comprising 6-freedom moving platform, movement controller, pattern processing computer, helmet, master control force feedback unit, sound synthesis and reproducing device, computer for processing models and kernel calculation, driving handle, pedals, switches and handgrips, where the 6-freedom moving platform comprises main beam, truss structure, driving handle, pedal, screw, motor, and chassis, as well as switches, handgrips and other parts equipped on cabin. And the invention implements 6-freedom full dynamic simulation, effectively reduces structural height, and has features of small volume, lightweight, simulation reality and low price.

The invention discloses a gear profile modification method based on vibration reliability and a genetic algorithm, belonging to the technical field of reliability designs. The gear profile modification method can not only reduce meshing impact due to elastic deformation and manufacturing errors, but also reduce the meshing excitation of a gear so that a gear system has smooth transmission, the vibration and the noises are reduced, and the reliability and service life of the gear system can be improved. The gear profile modification method comprises the following steps of: (1), establishing an elastic modification virtual prototype for meshing between a gear and a modifying gear; (2) carrying out dynamic simulation on gear transmission errors in the process of an involute profile and the profile modification; (3) analyzing the reliability sensitivity of the transmission errors at the time of gear pair random parameter meshing; (4) determining optimal parameters of the gear profile modification by utilizing the genetic algorithm; and (5) verifying the correctness of the parameters.

The invention relates to a multi-body dynamic quick analysis modeling method for a rotary steering drilling system. The method comprises the following steps of: (1) establishing a structural unit mechanical model according to structural information of the drilling system; (2) establishing constraint models which comprises a speed constraint model, an angular velocity constraint model, a rigid body-beam clamped constraint model and a beam-beam clamped constraint model; (3) establishing an acting force model; (4) establishing a drilling system parameterized model; and (5) importing a computation model file into a multi-body dynamic simulation program to perform dynamic analysis of the drilling system so as to finish modeling. Since the mechanical model of the drilling system is established on the basis of a multi-body dynamic basic principle, rotary motion and dynamic analysis of rotary steering whole well drill string system are realized, and a well bore path is dynamically predicted. The method can be widely applied to the fields of oil-gas fields and coal bed methane exploitation.

The invention relates to a load analysis method for a four-wheel six-component road spectrum of a finished automobile. The method comprises the following steps: 1 testing a four-wheel six-component road spectrum of a finished automobile; 2 collecting the design data of the finished automobile; 3 building and adjusting a dynamic model of the finished automobile; 4 carrying out virtual iteration; 5 obtaining Z-direction displacement of a wheel center; 6 decomposing the load of the finished automobile; 7 processing the load result. The six components of four wheel centers of the finished automobile are directly measured as external road excitation input; the actual stress condition of each wheel center under the typical characteristic road excitation of test site reliability is reflected; the technical effect of obtaining the load of the finished automobile system and spare parts is realized by a virtual iteration technique and a dynamics simulation technique; the anti-fatigue performance of the finished automobile structure can be accurately predicted and optimized at the earlier stage; problem rectification of the sample automobile stage is reduced; the research and development cycle is shortened; the research and development cost is also reduced.

The invention discloses a system for the three-dimensional interactive virtual arrangement of a large-scale artistic performance, which enables a user to freely establish and select performance elements comprising performers, props, costumes, lighting and the like required to be edited in a three-dimensional performance scene, set the attributes and the actions of the performance elements and theoccurrence time and the occurrence sequence of the actions, and see dynamic simulation results in real time. The system achieves the simulations of the performance formation and the performance actions of large-scale performing groups in the content of the large-scale artistic performance, and the modeling and the simulations of the performance elements of the props, the costumes, the lighting andthe like; the system also provides a performance material library containing three-dimensional models of the performance elements of the costumes, the props, the lighting and the like and the commonperformance actions; besides, the system achieves the digitalization and the persistence of the creation content of the performance, namely the work products of creative personnel are required to be capable of being stored, modified and reused digitally. The establishment and the application of the system can greatly improve the working efficiency of the creative personnel, improve the arrangementquality, and achieve great economic benefits with a smaller cost.

An apparatus and a method for optimizing robot performance includes a computer connected to the robot controller for receiving performance data of the robot as the controller executes a path program. The computer uses the performance data, user specified optimization objectives and constraints and a kinematic / dynamic simulator to generate a new set of control system parameters to replace the default set in the controller. The computer repeats the process until the new set of control system parameters is optimized.