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2020

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Articles 271 - 300 of 1664

Full-Text Articles in Numerical Analysis and Scientific Computing

Spatio-Temporal Correlation Described And Analysis Method Of Video Event Based On Case Frame, Ke Jia, Yongzhao Zhan, Xiaojun Chen, Manrong Wang Aug 2020

Spatio-Temporal Correlation Described And Analysis Method Of Video Event Based On Case Frame, Ke Jia, Yongzhao Zhan, Xiaojun Chen, Manrong Wang

Journal of System Simulation

Abstract: In the mass of video resources, how to describe and represent video event content is one of hot issues in the current multimedia information processing. The original theory of case grammar for natural language understanding was extended; Case Frame was designed to describe the relationships between the structures of complex events in the sub-events. In Ref_Asso, which is one of relationships, spatio-temporal correlation was analyzed and reasoned among sub-events. In the experimental part, Case Semantic Frame Net was used to describe and understand the typical complex events in surveillance video. And results of users' retrieval were compared; in which …

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Digital Analysis For Van Gogh's Painting, Yuqing Liu, Yuanyuan Pu, Yangfu Ren, Xu Dan Aug 2020

Digital Analysis For Van Gogh's Painting, Yuqing Liu, Yuanyuan Pu, Yangfu Ren, Xu Dan

Journal of System Simulation

Abstract: Usually, Sparse Coding can be used to extract image characteristics for analyzing the style of visual art works, while researchers always don't do deep data mining on the trained basis function. The basic functions that could reflect the interior characteristics of a stylish image were trained based on Sparse Coding on art works. The spatial and higher-order characteristic statistics were figured out. Van Gogh's art works of different periods were analyzed through normalized mutual information computing using trained basis function's Gabor transform power, in order to find the diversity of style. The simulation results show that data mining on …

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Research On High Usability Based On Cloud Simulation Platform, Limin Zhou, Yanfang Fu, Wuqi Gao, Gao Xiang, Cheng Bing Aug 2020

Research On High Usability Based On Cloud Simulation Platform, Limin Zhou, Yanfang Fu, Wuqi Gao, Gao Xiang, Cheng Bing

Journal of System Simulation

Abstract: With the increasing complexity of the simulation system, the reliability requirement is also growing. In order to ensure the reliability of the simulation system, a cloud simulation platform was built. Through the research of virtualization and high availability, a set of cloud simulation platform client management program was designed and developed according to the simulation needs. In the process of running, virtual simulation system node migration and analog off network operations were proposed to verify the reliability of the platform disaster. This ensures that the simulation system runs efficiently and stably.

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Fluid Simulation Of Sph Based On Opencl, Miaomiao Xiao, Liu Zhen, Jiabin Shi, Tingting Liu, Cuijuan Liu, Bangquan Liu Aug 2020

Fluid Simulation Of Sph Based On Opencl, Miaomiao Xiao, Liu Zhen, Jiabin Shi, Tingting Liu, Cuijuan Liu, Bangquan Liu

Journal of System Simulation

Abstract: Fluid plays an important role in the Virtual Reality Scene. Physics-based fluid animation can enhance the reality of numerical simulation. The efficiency of fluid animation based on physical computing usually is not real-time rendering without parallel computing. Fluid simulation was proposed based on SPH using OpenCL, which could make full use of the data interoperability of OpenCL and the graphics API, and use the coordination work of CPU and GPU to increase the potential of the hardware; when physics computing, the surface particles and normals based on the Coulomb's law were solved out. The preliminary experiment shows that the …

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Research On Augmented Reality Of Library's Navigation System, Zhou Wei, Lilong Chen, Jianwen Song Aug 2020

Research On Augmented Reality Of Library's Navigation System, Zhou Wei, Lilong Chen, Jianwen Song

Journal of System Simulation

Abstract: Library science is an interdisciplinary or multidisciplinary field, classifying and retrieving books is very tedious and complex, librarians spend a lot of time on tidying books, readers on searching as well. AR (Augmented Reality) was used in library's book searching and navigation. Encoding a book's Id to a two-dimension code marker, using a AR software development kit, and Wi-Fi localization using RSSI(received signal strength), and combining the virtual mark of navigator with the scene of library, the procedure of book searching and borrowing was simplified. The test results indicate that this system benefits to locate the right place of …

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Graphics And Image Local Deformation Based On Moving Least Squares Method, Xiaorong Du, Shuwen Ping, Zhang Yong Aug 2020

Graphics And Image Local Deformation Based On Moving Least Squares Method, Xiaorong Du, Shuwen Ping, Zhang Yong

Journal of System Simulation

Abstract: Combined with Moving Least Squares method, a deformation function based on control points and area was defined. A localization processing method for image deformation was proposed which extended to vector graph deformation. After adding control points to control deformation and setting the target deformation zone as control area, control points were controlled to deform image and vector graph, which could produce affine transformation, similarity transformation and rigid transformation results. Experiments show that, this method can inhibit boundary aliasing as well as ensuring graphics and image local deformation result smoothness. By applying it to vector graph deformation, multiple complex deformation …

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Design And Key Technologies Of Virtual Assembly And Simulation Of Mining, Driving And Transporting Equipment System, Jiacheng Xie, Zhaojian Yang, Xuewen Wang, Yiliang Wang Aug 2020

Design And Key Technologies Of Virtual Assembly And Simulation Of Mining, Driving And Transporting Equipment System, Jiacheng Xie, Zhaojian Yang, Xuewen Wang, Yiliang Wang

Journal of System Simulation

Abstract: For there was no connection among coal mine machinery equipment design, manufacture and its actual work environment, virtual assembly and simulation system, consisting of virtual assembly subsystem, scene simulation and roaming subsystem etc., were realized ultimately, which took shearer, scraper conveyor, roadheader and hoister as the study objects and were supported by double channel prop scene system as the hardware and Visual Studio and Open Scene Graph as the software platform, integrating force feedback, data gloves and other human interface devices, virtual assembly and simulation system made equipment operating status visible in the process of the coal production. In …

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Digital Bathymetry Model For Multibeam Based On Attitude And Terrain Effect, Jiacheng Yu, Xueqiang Xu Aug 2020

Digital Bathymetry Model For Multibeam Based On Attitude And Terrain Effect, Jiacheng Yu, Xueqiang Xu

Journal of System Simulation

Abstract: Aiming at the problems of expensive multibeam system and bumpy ship in bathymetric survey for seafloor, a digital bathymetry model based on depth data according to principle of multibeam mathymetric sonar system was designed, and a correction method of water depth survey due to effect of angular beam-width, vehicle attitude and terrain was given. Accordingly, seafloor was scanned with this model and terrain map was constructed to mimic the realtime terrain. The model and correction were verified by using practical water depth data of certain seafloor. Simulation results show that the model is in accordance with theoretical analysis and …

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Gesture Segmentation And Recognition Based On Kinect Depth Data, Yanming Mao, Liliang Zhang Aug 2020

Gesture Segmentation And Recognition Based On Kinect Depth Data, Yanming Mao, Liliang Zhang

Journal of System Simulation

Abstract: Aiming at the problems that gesture recognition required high environmental background, segmented gesture usually contained wrist data and closing fingers easily caused false recognition, a gesture recognition method based on depth data was proposed. It captured gesture depth map, and it used Hands Generator to obtain the information of palm for gesture segmentation, in order to remove redundant wrist data, the constraint of the palm which looks like a square was added. The number of all the other four fingers except thumb could be acquired with the use of the scanline method, therefore, the width ratio of the adjacent …

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Visual Positioning Technology Research Of Picking Robot Based On Dynamic Target, Juntao Xiong, Xiangjun Zou, Haixin Zou, Hongxing Peng, Ye Min Aug 2020

Visual Positioning Technology Research Of Picking Robot Based On Dynamic Target, Juntao Xiong, Xiangjun Zou, Haixin Zou, Hongxing Peng, Ye Min

Journal of System Simulation

Abstract: A difficult problem of picking robot visual position in the natural environment is the disturbance because of interference factors. The angular size of disturbed fruit was calculated to determine the three states of fruit that static, micro disturbance and large disturbance; For static and micro disturbance litchi, the improved FCM fuzzy clustering method was used to segment litchi image to acquire litchi fruit and fruit stalk, then the Hough linear fitting was used to determine the effective picking area and picking point on the fruit stalk, so realizing the visual space positioning of litchi picking point, and the simulation …

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Research On Evolution Modeling Of Complex Network Based On Priority Of Equipment Capability, Fengqin Zhang, Liang Dong, Guan Hua, Dawu Chen, Xiaoqing Li, Qingfeng Zhang Aug 2020

Research On Evolution Modeling Of Complex Network Based On Priority Of Equipment Capability, Fengqin Zhang, Liang Dong, Guan Hua, Dawu Chen, Xiaoqing Li, Qingfeng Zhang

Journal of System Simulation

Abstract: According to disadvantages of the traditional approaches of complex modeling for description of weapons and equipment on dynamic and uncertainty, referencing to the OODA theory, a new approach for evolution modeling of combat system complex network was put forward based on priority of equipment capability, which had improved BA scale-free networks model by the process of choosing linking objects, defining link edges, backing out of combat nodes and dynamic adjusting to the modeling policy based on the capability values of each nodes of weapon and equipment under particular applications. By simulation experiments, the new approach, which has the features …

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Study On Virtual-Observation Kalman Filter Algorithm Of Multi-Radar Networking, Wenbo Zhao, Hailong Ding, Chenghua Qu, Mo Jun Aug 2020

Study On Virtual-Observation Kalman Filter Algorithm Of Multi-Radar Networking, Wenbo Zhao, Hailong Ding, Chenghua Qu, Mo Jun

Journal of System Simulation

Abstract: Under the circumstances of tracking targets in multi-radar networking (MRN), measure-value in polar coordinates of the networked radar (NR) has the nonlinear relation with state-value of targets tracking coordinates, which does not satisfy linear requirement of Kalman filter algorithm (KFA) application. Virtualizing the tracking coordinates of MRN as the measure coordinates of KFA was introduced. As a result, original nonlinear relation was simplified as a linear form. By means of modeling virtual observation noise and constructing the initialization strategy, KFA could solve state estimation problem in MRN. Simulation analysis and real data verification demonstrate that virtual-observation KFA (VOKFA) has …

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Research On Optimal Slip Frequency Control Of Single-Sided Linear Induction Motor, Xijun Liu, Kunlun Zhang, Chen Yin Aug 2020

Research On Optimal Slip Frequency Control Of Single-Sided Linear Induction Motor, Xijun Liu, Kunlun Zhang, Chen Yin

Journal of System Simulation

Abstract: In order to study the influence of the unique edge effect and normal force of single-sided linear induction motor, the effect of slip frequency on electromagnetic force and normal force output was analyzed based on constant current and constant slip frequency control to achieve optimal slip control. Considering the T-type equivalent circuit of single-sided linear induction motor and the end effect, the numerical relationship between electromagnetic force, normal force and slip frequency was calculated and derived. Combined with computer simulation, the characteristics of electromagnetic force and normal force output under conditions of different speed and different electromagnetic air gaps …

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Model And Simulation Of Traffic Flow Evolutionary Based On Individual Travel Decision Analysis, Zhuojun Li, Xingguang Chen Aug 2020

Model And Simulation Of Traffic Flow Evolutionary Based On Individual Travel Decision Analysis, Zhuojun Li, Xingguang Chen

Journal of System Simulation

Abstract: Travel choice behavior decision-making mechanism was analyzed at first. On this basis, a traffic evolutionary model was present and the relations between the evolutionary process of traffic flow under the route choice behavior, user individual travels decision-making characteristic parameters and external traffic information were investigated by employing simulation platform. Some significant inspiration and meaningful implications are concluded, i.e., the influential effects of individual travel decision-making parameters for flow evolution are quite complicated. The travel service information should be released and used combined with appropriate travelers to maximize the effect of traffic information. These conclusions will help to deepen understanding …

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Study In Plant Modeling And Animation, Yanna Jiang, Boxiang Xiao, Xinyu Guo, Baozhu Yang Aug 2020

Study In Plant Modeling And Animation, Yanna Jiang, Boxiang Xiao, Xinyu Guo, Baozhu Yang

Journal of System Simulation

Abstract: Plant modeling and animation synthesis was widely used in many fields, such as virtual plant, 3D animation, games and so on. The techniques of plant modeling and animation synthesis were reviewed. Plant modeling techniques were discussed in three aspects: fractal and L system approach, imaged-based methods, methods based on three-dimensional measurement data. Plant animation synthesis techniques were analyzed in four aspects: physically-based animation, procedural animation, video-based animation and data-driven animation. Furthermore, some issues in future research were addressed, and further trends and research directions were discussed.

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Co-Simulation And Experiment Of Vehicle Electro-Hydraulic Dynamic Braking System, Cai Pu, Muyi Lin, Zheng Xin, Wen Jian Aug 2020

Co-Simulation And Experiment Of Vehicle Electro-Hydraulic Dynamic Braking System, Cai Pu, Muyi Lin, Zheng Xin, Wen Jian

Journal of System Simulation

Abstract: For now, when vehicle electro-hydraulic brake system is studied, dynamics system and hydraulic system modeling and simulation are usually separated, and that leads to defects in coupling and relevance. In order to satisfy integration design requirements of multi-body system, taking ZL50 loader as an example, the virtual prototype model was set up, and the correctness of the mechanical model was verified by real vehicle tests. The mathematical model of main system components and the hydraulic model of multi-loop electro-hydraulic braking system was established respectively. The experimental results verified the accuracy of hydraulic model by corresponding bench tests. The parameters …

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Virtual Surgery Force Feedback Process Simulation Based On Soft Tissue Deformation Biomechanical Information, Monan Wang, Chengyou Wang, Yuming Liu, Li Zhao Aug 2020

Virtual Surgery Force Feedback Process Simulation Based On Soft Tissue Deformation Biomechanical Information, Monan Wang, Chengyou Wang, Yuming Liu, Li Zhao

Journal of System Simulation

Abstract: For human tissues biomechanical information was obtained from tissue biomechanical model by virtual environment, human soft tissue biomechanical model was developed based on mass-spring modeling method, the biomechanical model was solved by four-order Range-Kuttle method, haptic device was designed based on modularization. Force signal transmission process simulation and obtaining realized force on force feedback device end were completed by connecting virtual haptic device and biomechanical program in ADAMS software. The force feedback process was verified by simulation system. The results show that the haptic can get accurate realtime force information. The study accomplishes simulation of force feedback process based …

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Firing Stability Calculation And Simulation Analysis Of New Large Calibre Machine Gun, Zhiteng Fan, Ruilin Wang, Yongjian Li, Binbin Hua, Wang Kai Aug 2020

Firing Stability Calculation And Simulation Analysis Of New Large Calibre Machine Gun, Zhiteng Fan, Ruilin Wang, Yongjian Li, Binbin Hua, Wang Kai

Journal of System Simulation

Abstract: To study the firing stability of a new large calibre machine gun in different ground environment, the stability model of arms rack and dynamic model of the whole gun were established respectively. The stability condition in clunch and concrete environment was educed, and the force in shoulder which was required for the stability of machine gun was also calculated. Then a dynamic model of this gun at one firing movement was established. Based on this and dynamic simulation software, the muzzle displacement response in different ground environment was obtained. Comparing the simulation result and contrasting with one older machine …

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Automatic Pipelining Mechanism Design For Maize Ear Analysis, Boxiang Xiao, Chuanyu Wang, Xinyu Guo, Wu Sheng, Jianjun Du Aug 2020

Automatic Pipelining Mechanism Design For Maize Ear Analysis, Boxiang Xiao, Chuanyu Wang, Xinyu Guo, Wu Sheng, Jianjun Du

Journal of System Simulation

Abstract: Aiming at automatic character information acquisition for maize ear analysis, a pipelining mechanism was designed including two main modules: weight measurement and images collection. The system supported automatic collection of weight data and images in batches. And then, the system was analyzed in mechanical properties by kinematic parameters. A three-dimensional simulation system was developed by use of computer graphics technologies to evaluate the performance of the presented pipelining mechanism. The feasibility of the design for maize ear analysis was discussed, which can support high precise and efficient maize ear analysis as a practical tool and technical references.

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Modeling And Analyzing Of Battlefield Information Sharing Effectiveness Based On Complex Networks, Zhang Qiang, Jianhua Li, Shen Di Aug 2020

Modeling And Analyzing Of Battlefield Information Sharing Effectiveness Based On Complex Networks, Zhang Qiang, Jianhua Li, Shen Di

Journal of System Simulation

Abstract: Battlefield information sharing is the basis of acquiring information superiority to get decision and action superiority in information war。Aiming at the influence of information sharing on operational effectiveness, internal essence of the information sharing activity in information warfare was qualitatively descripted. By using operational network model which clearly reflects node's function and edge's type, the operational network with different information sharing degree was constructed, and the characteristic which depicts information sharing effectiveness was defined, and the influence law of information sharing degree on sharing effectiveness measurement indexes of operational network with simulation was analyzed. The simulation result validates that …

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State Event Detecting Algorithm For Hybrid System Based On Interval Newton's Method, Haiyan Wang, Yihuai Hu Aug 2020

State Event Detecting Algorithm For Hybrid System Based On Interval Newton's Method, Haiyan Wang, Yihuai Hu

Journal of System Simulation

Abstract: Accurately detecting of state events is critical for hybrid dynamic systems,especially for systems with singularities or event functions with multiple roots. A carefully constructed extrapolation polynomial among state value of past time points was applied to predict values of event functions. The polynomial was derived from a variable-step multi-step integration method. The extended interval Newton's method was employed to find all roots in a certain time interval. Due to no using of values of future time points, the polynomial can be employed to determine the integration step size by checking potential events in systems with model singularities. The procedure …

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Research And Simulation Of Equalization Algorithm Suitable For High-Order Qam Signals, Wang Yan, Shen Pan, Wang Chao Aug 2020

Research And Simulation Of Equalization Algorithm Suitable For High-Order Qam Signals, Wang Yan, Shen Pan, Wang Chao

Journal of System Simulation

Abstract: Traditional dual-mode blind equalization algorithm is based on constant modulus channel equalization, its convergence is slow, and it has a low efficiency of bandwidth. For overcoming its shortcoming, two blind equalization algorithms suitable for high-order QAM signals were proposed. These are double mode multi-module equalization algorithm (DMMA) and semi-blind equalization algorithm (SBEA). DMMA used multi-module equalization algorithm as first mode and multi-module assistant equalization algorithm as second mode, both modes simultaneously equalized the signal. For achieving a fastest convergence and lowest error rate, DMMA's result was regard as the pilot data for least mean square algorithm (LMS), which is …

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Simulation Study On Effect Of Mechanical Environmental Load On Electro-Mechanical Actuator Under Working Condition, Xuerong Ye, Yingqi Wang, Zixian Li, Ansheng Liang Aug 2020

Simulation Study On Effect Of Mechanical Environmental Load On Electro-Mechanical Actuator Under Working Condition, Xuerong Ye, Yingqi Wang, Zixian Li, Ansheng Liang

Journal of System Simulation

Abstract: Electro-mechanical actuator (EMA) is a key part for helicopter to realize the accurate guidance. Random vibration and impact can affect its working performance directly. Based on multi-software co-simulation, a new method for analyzing the influence of mechanical environment on the working performance of EMA was proposed. The model of EMA was built by UG, and then mechanical property of the EMA interconnecting pieces under work condition was analyzed by ADAMS. After that, Patran and Nastran were used to study the dynamics features including random vibration and impact performance, so as to get influence of mechanical load on the structure …

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Steering Performance Analysis Of Five-Axle Vehicle Based On In-Phase Steering Extent, Pingxia Zhang, Gao Li, Yongqiang Zhu Aug 2020

Steering Performance Analysis Of Five-Axle Vehicle Based On In-Phase Steering Extent, Pingxia Zhang, Gao Li, Yongqiang Zhu

Journal of System Simulation

Abstract: Because there are several axles in multi-axle vehicle, and steering controlling is very complex, it is proposed to use the front wheel steering angle and the distance D between turning center and first axle as input controlling variables, and based on Ackerman theory to realize all wheels steering. This control strategy can make all wheels turn around the same instant center in a circular motion, and realize several steering mode by changing D values. Based on this, a five-axle vehicle model was built with ADAMS software, and the control strategy was built with Simulink software. The steering angle step …

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Revision And Thinking About Agent-Based Modeling Research To Group Violent Activity, Chen Peng, Jianguo Chen, Hongyong Yuan Aug 2020

Revision And Thinking About Agent-Based Modeling Research To Group Violent Activity, Chen Peng, Jianguo Chen, Hongyong Yuan

Journal of System Simulation

Abstract: The current work about Agent-based modeling research on group violent incidents was reviewed, which included the social science theory which undertakes the group violence simulation, the studies about Agent categorization, relationship modeling, Agent emotion production, adaptive decision-making process and evolution of complex behaviors. It was indicated that the constructing of Agent model experienced the process in which the Agent model transited from simplicity to more complexity, thus, focusing on individuality and heterogeneity's model construction which was integrated more on sociology and psychology would become a significant development trend. Following that, some suggestions and thinking which included the principle of …

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Simulation-Enable Method Based On Architecture, Qiurui Chen, Xinping Xiong, Duzheng Qing, Zhang Jin Aug 2020

Simulation-Enable Method Based On Architecture, Qiurui Chen, Xinping Xiong, Duzheng Qing, Zhang Jin

Journal of System Simulation

Abstract: Requirements of architect simulation-enable were analyzed which conducted the study of the completeness condition for architect execution and architecture description framework was extended. An executable architecture framework satisfied the completeness condition and its development process was proposed, and upon which simulation-enable method based on executable architecture framework was put forward. The theory of mapping and conversion from architecture products to input of simulation platform was introduced. The method provided an available approach to raise the simulation model development efficiency and keep the consistency of the high level design with simulation system. A water distribution system was taken as an …

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Research On Precise Modeling And Simulation Of Hob Tooth Moving Trace, Rongchuang Zhang, Wang Jun, Wanshan Wang Aug 2020

Research On Precise Modeling And Simulation Of Hob Tooth Moving Trace, Rongchuang Zhang, Wang Jun, Wanshan Wang

Journal of System Simulation

Abstract: To save inevitable modeling insufficiencies owing to the simplified modeling strategie, simulation system of gear hobbing process based on solid modeling was developed. To realize the precise modeling of hob tooth moving trace, the vector model of the gear hobbing motion based time-driven was put forward, and then the position vector and velocity vector for every trace point were obtained. The velocity vector was specified as first-order vector, position vector as node coordinate and both of them were used to get hob tooth moving trace curve by the spline interpolation. Interpolation accuracies of hob tooth trace curve were obtained …

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Combat Crowd Behavior Modeling Based On Multilayered Decision-Making, Xue Qing, Wenchao Xu, Changwei Zheng, Guohui Zhang Aug 2020

Combat Crowd Behavior Modeling Based On Multilayered Decision-Making, Xue Qing, Wenchao Xu, Changwei Zheng, Guohui Zhang

Journal of System Simulation

Abstract: Training simulator is one important part of the virtual solider technology application, and the combat crowd behavior research can improve training effect efficiently. The model divided the combat decision-making into five layers: biomechanical, reactive, cognitive, and rational, and constructed combat crowd behavior model; proposed the concept of interaction unit that can save and perform the interaction between agents. The multilayered decision-making system used an oriented graph managed the behavior planning and built the interaction management. The model divided the combat behavior into seven basic behavior in order to simplify the combat goal. The model was used in an equipment …

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Target Association Algorithm And Simulation For Radar And Ais Based On Bp Network, Xiaolong Zhang, Jiachun Zheng, Changchuan Lin, Xiaorui Hu, Qiaoping Chen, Shuangshuang Zhu Aug 2020

Target Association Algorithm And Simulation For Radar And Ais Based On Bp Network, Xiaolong Zhang, Jiachun Zheng, Changchuan Lin, Xiaorui Hu, Qiaoping Chen, Shuangshuang Zhu

Journal of System Simulation

Abstract: Radar and AIS (Automatic Identification System) are two kinds of important equipment to obtain targets information in marine traffic, but the content and accuracy of both information are different, which can complement for each other in a certain sense. To hand more reliable and precise of the targets information, information fusion is necessary, and targets association decision is the indispensable stage in the whole process. According to multi-sensor information fusion theory and principle of BP neural network, a targets association algorithm of radar and AIS based on BP network was proposed, after the discussion of net structure design, simulation …

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Simulator Of Penicillin Fermentation Process In Matlab/Simulink Environment, Lingjian Ye, Jianghua Cheng Aug 2020

Simulator Of Penicillin Fermentation Process In Matlab/Simulink Environment, Lingjian Ye, Jianghua Cheng

Journal of System Simulation

Abstract: For control and optimization of penicillin fermentation process, a suitable simulator should be developed. PenSim is a world-wide famous simulator for penicillin process, however, it can only generate process data for the purpose of analysis, but not applicable for the real-time control and production optimization. The internal models in Pensim were comprehensively investigated and a new penicillin fermentation simulator was developed in the environment of Matlab/Simulink. The simulator preserves highly kinetic identity with Pensim, yet allowing users to freely define the trajectories of control variables during operation (e.g. the feed rate of substrate), thus suitable for the study of …

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