Application Of Ansys To Reliability Analysis Of Prefabricated Steel Bridge,
2020
PLA 63956 Troops, Beijing 100036, China;
Application Of Ansys To Reliability Analysis Of Prefabricated Steel Bridge, Yinlong Zhang, Li Bo, Shichuan Bian
Journal of System Simulation
Abstract: Prefabricated steel bridge is a temporary or semi-permanent bridge structure. When the vehicles pass through the bridge, large internal force and deformation of the bridge structure will occur, and higher requirements of the bridge structure reliability are put forward. Probabilistic analysis design is an analysis technique for assessing the effect of uncertain random input parameters and assumptions on a finite element calculation model. Making use of the Probabilistic Design System, which is offered by the large universal finite element analysis program ANSYS, the reliability analysis of deflection, bend stress and compression member stability of a main truss structure of …
New 2d Flow Visualization Method Based On Mutual Information And Image Fusion,
2020
1. Lishui University, Lishui 323000, China; ;
New 2d Flow Visualization Method Based On Mutual Information And Image Fusion, Weihua Shen, Shengbo Wang, Zhigeng Pan
Journal of System Simulation
Abstract: A overview of flow visualization method based on information theory was made. After a comparative analysis of several classic two-dimensional flow visualization techniques, the concept of mutual information from information theory and image fusion technique was used to deal with the existing classical two-dimensional flow visualization techniques. A new two-dimensional flow visualization technique was obtained. The visualization results of the new method is very well.
Technical Reference Framework For Semantic Interoperation Between Combat Simulation Systems And Command & Control Systems,
2020
Department of Equipment Command and Administration, Academy of Armored Force Engineering, Beijing 100072, China;
Technical Reference Framework For Semantic Interoperation Between Combat Simulation Systems And Command & Control Systems, Xiangzhong Xu, Zaijiang Tang, Yaxin Tan
Journal of System Simulation
Abstract: Military training, equipment demonstration, war-fighting test and other applications pose great requirements on the semantic interoperation between combat simulation systems and command & control (C2) systems. The heterogeneity between combat simulation and C2 systems was analyzed from the following aspects, such as architecture, information interaction models, communication protocols and databases. Then a layered technical reference framework was proposed to solve this thorny issue in a comprehensive way, which consists of accession layer, resource layer, semantic interaction layer, service layer and application layer. Its effectiveness was demonstrated against an application use-case. Research results are helpful to make out an engineering …
Design & Implement On Virtual Scheduling System Of Great Square Art Performance,
2020
School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China;
Design & Implement On Virtual Scheduling System Of Great Square Art Performance, Lv Desheng, Guo Yan
Journal of System Simulation
Abstract: The work of great art performance in square has a great deal of dynamic visual effects scenes, which combines with formation variation, beautiful music, unique clothing and colorful light. According to the requirements of improving efficiency for scheduling section in handwork performance such as inefficient manual drawing, time-consumed and costly rehearsal, it is an effective way to use technology of computer simulation so as to implement real-time and dynamic intermediary platform among performer, director and audience. To meet various demands in practice, a vision-based formation generation was proposed that the path construction was studied based on linear fitting, …
Review On Interoperability Of Command Information System And Combat Simulation System,
2020
Warfare Simulation Center, Academy of Armored Force Engineering, Beijing 100072, China;
Review On Interoperability Of Command Information System And Combat Simulation System, Zaijiang Tang, Xiangzhong Xu, Xue Qing, Haohua Xu
Journal of System Simulation
Abstract: The interoperability of command information system and combat simulation system is an important and difficult problem of building practical training environment. The four aspects of interoperability connotation were summarized. The demands of interoperability were analyzed. The status and development of interoperability, especially for C4ISR/Sim Technical Reference Model (TRM), Battle Management Language (MBL), Levels of Conceptual Interoperability Model (LCIM) were studied. The existing problems were summarized, and four kinds of solutions were proposed. The general technical framework of interoperability based on service oriented architecture was designed, and the interoperability solving method based on Ontology was given.
Total Least-Squares Algorithm For Wiener Errors-In-Variables System Modeling,
2020
Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Jiangnan University, Wuxi 214122, China;
Total Least-Squares Algorithm For Wiener Errors-In-Variables System Modeling, Ziyun Wang, Zhicheng Ji
Journal of System Simulation
Abstract: The modeling problem of Wiener errors-in-variables systems was investigated where measurements of the system input and output were corrupted by the additive white Gauss noise. After the provided reformulation of the errors-in-variables system, a two-stage algorithm was developed to estimate the unknown parameters with the first stage employing the total least-squares algorithm, followed by a singular value decomposition in the second stage. The asymptotic maximum likelihood estimation property under the PE condition was strictly proven that with data length tends to infinite, and the proposed total least-squares solution provided an asymptotic maximum likelihood estimate for the nonlinear system parameter …
Molecular Dynamics Of Fluid Properties By Normal Oscillations Of Solid Wall,
2020
School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
Molecular Dynamics Of Fluid Properties By Normal Oscillations Of Solid Wall, Haijun Dong, Xiaoqing Lu, Haopeng Zhang, Mingming Shan
Journal of System Simulation
Abstract: The fluid properties under the condition of the solid wall normal oscillations were studied using the molecular dynamics method. The two dimensional Couette flow model made up of copper wall and argon fluid was built. The fluid state of the near wall was simulated under the different oscillation parameters of solid wall and the corresponding fluid velocity field, the density distribution, the potential energy curves and the friction force were obtained. Then the influence mechanism of the wall oscillations on the frictional drag at liquid-solid interface was investigated. The results indicate that the frictional drag between wall and fluid …
Novel Method To Identify Pmsm Parameters Based On Multiple Linear Regressive Models,
2020
1. School of Internet of Things, Jiangnan University, Wuxi, 214122; ;2. Wuxi Electrical and Higher Vocational Schools Wuxi 214122;
Novel Method To Identify Pmsm Parameters Based On Multiple Linear Regressive Models, Zhenwei Shi, Zhicheng Ji
Journal of System Simulation
Abstract: A New Coupled Recursive Least Squares (C-FF-RLS) Algorithm with a forgetting factor was proposed for the Parameters Identification of Permanent Magnet Synchronous Motors (PMSMs). The deduced multiple linear regressive models of PMSM were proposed that were simple and appropriate for parameter identification. The C-FF-RLS identification algorithm had a high computational efficiency and a fast convergence speed because which Avoided the Matrix Inversion Operation in the Gain Matrix Compared with the Traditional Multivariable Recursive Least Squares (M-FF-RLS) Algorithm with a Forgetting Factor. The Proposed Identification Algorithm was applied on a simulation system of PMSM. The identification results achieved by …
Guidance Simulation Credibility Evaluation Based On Clustering With Grey Cloud And Entropy Weight,
2020
1. School of Information Engineering, He'nan University of Science and Technology, Luoyang 471003, China; ;
Guidance Simulation Credibility Evaluation Based On Clustering With Grey Cloud And Entropy Weight, Wang Fei, Xiaogeng Liang, Guo Chao, Peipei Li
Journal of System Simulation
Abstract: Considering the problems of randomness and fuzziness in evaluating indexes from guidance simulation system, a novel grey clustering comprehensive evaluation model combined with center normal grey cloud whitening function and combination weighting function was presented. The comprehensive credibility evaluation index system for guidance simulation was built. The subjective weight vector of indexes was established by weighting cloud model based on analytic hierarchy process, the objective weight vector of indexes was obtained by entropy weighting method based on the entropy and classified distinction of the normal grey cloud whitening function, then the comprehensive weight vector was acquired by fusing the …
Modeling And Analysis Of Command Control System Based On Devs,
2020
Beijing Inst.of Electronic System Engineering, Beijing 100854, China;
Modeling And Analysis Of Command Control System Based On Devs, Xinlong Li, Xiang Mao
Journal of System Simulation
Abstract: A comprehensive discussion was made on the application of DEVS theory in the modeling of command control (C2) system, which introduced the mathematical model of DEVS, gave the principle of using DEVS to model the C2's behavior and analyze how capability-requirement-measurements effected the simulation. The process and approach of DEVS-Modeling battalion's C2 system were introduced.
Research On Live Migration Scheduling Method For Communication Network Simulation System Based On Vmotion,
2020
Xi'an Technological University, Xi'an 710021, China;
Research On Live Migration Scheduling Method For Communication Network Simulation System Based On Vmotion, Yanfang Fu, Gao Xiang, Cheng Bing, Xueyao Feng
Journal of System Simulation
Abstract: In order to make the quality of the simulation service not being affected by load dynamic changes, heuristic scheduling algorithm was proposed. Using the VMotion technology, the virtualization simulation platform was created by calling the SDK. Through the research of the simulation platform application overhead and virtual resource scheduling technology, the single communication network simulation model was modified, implementing the distributed network collaborative simulation which adapted to multiple virtual machines, providing new ideas for the mass communication network simulation system.
Design Of Navigation Electronic Interference System For Flight Simulator,
2020
1. 93199 Army Flight Simulator Techonology Research Institute, Harbin 150001, China;
Design Of Navigation Electronic Interference System For Flight Simulator, Zengbo Zhou, Chen Xi, Zhenyu Sun, Li Xiang
Journal of System Simulation
Abstract: Modern military combat pays more attention to the electronic interference and anti interference, as the important component, the aircraft navigation system is one of the main objects attacked by enemy electronic jamming. In order to simulate the electronic jamming influence on navigation performance of the system, the establishment of an electronic jamming system in aircraft engineering simulator, was designed for the flight simulator interference model and statistical model frame work, and according to the integrity of the system testing and calculation results, the interference was divided into five levels, which not only specified the electrical interference, but also …
Self Formation Development Mode With Vopes,
2020
Vision V & S Technology Co.,Ltd, Chengdu 610045, China;
Self Formation Development Mode With Vopes, Changming Fu, Chunsheng Long, Tang Hong
Journal of System Simulation
Abstract: To solve the growing conflict between requirements and applications in simulation/visualization, self-formation development mode was proposed: domain experts DIY by WYSWYG in a self-adapting process. VOPES (Visual Open platform for Engineering System) was briefly introduced: integrated architecture, system modeling tools, visualization tools, automatic generation, debugging, deploying, and runtime infrastructure. VOPES enables domain expert to produce distributed simulation/visualization application, no need of coding, complex program skill, hard rules like UML, HLA, DDS, etc. VOPES can be widely used in applications like mission simulation, equipment demonstration, virtual range, training, ITEM. It is especially suitable to the fast, agile, complex simulation/visualization application, …
Design Of Drilling Jumbo Simulation Training System Based On Vega Prime,
2020
The Second Artillery Engineering University Sergeant College, Qing Zhou 262500, China;
Design Of Drilling Jumbo Simulation Training System Based On Vega Prime, Youcai Wang, Zilong Guo, Xinhai Xiang, Honghai Luan
Journal of System Simulation
Abstract: A drilling jumbo simulation training system was developed based on the Vega Prime in the MFC framework. The interactive communication control platform was built based on PCI bus, and then multithreading technology was adopted to achieving the Synchronous data communication between acquisition card and computer. A variety of modeling software was studied to aid Creator modeling method, and then the motion simulation of the drilling jumbo double-arm realization method based on DOF nodes was studied, which realized the real-time dynamic interaction of the system. By using the active 3d stereo imaging principle, the realization method of 3d stereo display …
Boiler Combustion Optimization Based On Bayesian Neural Network And Genetic Algorithm,
2020
Beijing Institute of Information Control, Beijing 100048, China;
Boiler Combustion Optimization Based On Bayesian Neural Network And Genetic Algorithm, Haiquan Fang, Huifeng Xue, Li Ning, Fei Xi
Journal of System Simulation
Abstract: Neural network and genetic algorithm have been extensively used in boiler combustion optimization problems. But the traditional Back Propagation neural network's generalization ability is poor. The Bayesian regularization can improve the neural network's generalization ability. A boiler combustion multi-objective optimization method combining Bayesian regularization BP neural network and genetic algorithm （Bayes NN-GA）was researched. A number of field test data from a boiler was used to simulate the Bayesian neural network model. The results show that the thermal efficiency and NOx emissions predicted by the Bayesian neural network model show good agreement with the measured, and the optimal results show …
Attitude Control Of Three-Axis Flexible Satellite Based On Active-Disturbance-Rejection Sliding Mode Method,
2020
1. Beihang University State Key Laboratory of Virtual Reality Technology and Systems, Beijing 100191, China; ;2. Beihang University School of Automation Science and Electrical Engineering, Beijing 100191, China; ;3. Science and Technology on Aircraft Control Laboratory, Beijing 100191, China;
Attitude Control Of Three-Axis Flexible Satellite Based On Active-Disturbance-Rejection Sliding Mode Method, Yunjie Wu, Li Chen, Ma Zheng
Journal of System Simulation
Abstract: By using Kane method, a mathematical model with CMGs as actuators was built for the three-axis satellite with flexible appendages. An active-disturbance-rejection sliding mode controller was designed for the demand about quickness and stability in attitude control. This controller observed the disturbance by expanded state observer, and compensated the output. The slide mode method in the controller made the system quick and stable. The simulation experiments show that the controller could control the attitude of three-axis satellite efficiently and weaken the vibration of flexible solar panel. The active-disturbance-rejection sliding mode controller shows the merits of both active-disturbance-rejection method …
Least-Energy Maneuver Of Five-Link Manipulator Constrained Within Tunnel Space Using Direct Collocation,
2020
College of Information and Communications, Zhejiang Industry and Trade Vocational College, Wenzhou 325003, China;
Least-Energy Maneuver Of Five-Link Manipulator Constrained Within Tunnel Space Using Direct Collocation, Xiuqiang Pan, Chengcai Mei, Junjie Chen
Journal of System Simulation
Abstract: Optimal control and designs least-energy maneuver control laws for a five-linked manipulator were applied in order to carry out designated tasks in a confined space. Lagrange-Euler equation described the relationships between the actuators and system dynamics. Euler-Lagrange formulation indicates how optimization can be achieved when optimum occurs. Direct collocation method was introduced in order to solve this highly nonlinear dynamic optimal control problem. Simulations were done to exploit how the manipulator reacted to the constraint. In this study, the diameter of the cylindrical space was shrunken each time by 0.1 meters. The value of the cost function and …
Research Of Multi-Views Based Weapon And Equipment Simulation Model Architecture,
2020
1. Navy Arming Academe Postdoctoral Workstation, Beijing 100161; ;2. 92941 Troop, Huludao, Liaoning 125001; ;
Research Of Multi-Views Based Weapon And Equipment Simulation Model Architecture, Chunguang Peng, Jianhui Deng, Zhang Bo
Journal of System Simulation
Abstract: ：It's an important approach to build reasonable and complete simulation model architecture for promoting the simulation interoperability, establishing simulation model standards and promoting reusability of models and codes. Some problems existed in the research of simulation model architecture were analyzed. The weapon and equipment simulation model architecture describing method based on multi-views was brought out by using the system engineering theory, which emphasized on the complicated relations between modes and its environment. The method could describe simulation model architecture from different views of different users. Therefore, based on DoDAF and the popular software architecture, five-view models of weapon …
Research On Equipment Operation Capabilities Requirements Based On Exploratory Simulation Experiment Methodology,
2020
1. Naval Command College, Nanjing 210016, China; ;
Research On Equipment Operation Capabilities Requirements Based On Exploratory Simulation Experiment Methodology, Zongrui Yan, Yinhua Wu, Chen Yong, Jianshu Dong
Journal of System Simulation
Abstract: Analysis on equipment operation requirements is a very difficult problem which has included a lot of uncertain factors, and it can assist peoples to determine whether the equipment item should be started. Exploratory simulation experiment methodology which is synthetized by exploratory analysis and war fighting experimentation can provide a better service for many problems about the equipment demonstration. Through the summary on basic applications exploratory simulation experiments related out comes and its analysis for concrete implementation steps equipment demonstration areas, a tactical level exploratory simulation methodology and its concrete implementation steps were proposed for the operational requirements analysis. An …
Research And Development Of Eicas System Emulator Based On Idata,
2020
1. Beijing University of Aeronautics & Astronautics, Beijing 100191, China; ;2. Air force Training Equipment Research Institute, Beijing 100195, China;
Research And Development Of Eicas System Emulator Based On Idata, Baoming Zhao, Hongshu Cheng, Cancan Liu, Jiying Li
Journal of System Simulation
Abstract: Some modeling tools can't design simulation instruments efficiently and conveniently such as OpenGL, etc. A cockpit display development tool of IData was worked in which has graphical user interface and could develop a system easily and rapidly. IData is a method of designing maps and pictures, it can respond variables of application and controlling events in real time and develop graphical interface by clicking on the menu. So IData can reduce the time of graphic development and integration in simulation. In order to render maps in real time, IData used a powerful graphic editor to model for instruments, and …
