Simulation-Based Optimization For Site Selection Of Agv Charging Mode,
2020
1. Maritime College, Ningbo University, Ningbo 315211, China;;
Simulation-Based Optimization For Site Selection Of Agv Charging Mode, Danlan Xie, Haihong Yu, Chen Jing, Zhipeng Gao, Zhanghao Zhang
Journal of System Simulation
Abstract: With the development of intelligent manufacturing, automation of production line is improving. AGV (automated guided vehicle) as a necessary device in the automation system, it is important to design its charging system. Aiming at the problem of the site selection of online charging, the software FlexSim was used to build simulation model, based on the operation requirements of an actual assembly shop, in an actual planning process. Through a large number of simulation experiments, the maximum stay location of AGV in the different lines was obtained under the influence of random factors. By comparing the idle and blocked …
Theoretical Model And Validation Of Delivery Time Of Ltp In Deep Space Communication,
2020
Institute of Manned Space System Engineering, China Academy of Space Technology, Beijing 100094, China;
Theoretical Model And Validation Of Delivery Time Of Ltp In Deep Space Communication, Wang Yang, Yang Hong, Xiaoguang Chen, Ding Kai
Journal of System Simulation
Abstract: An accurate theoretical model of LTP in deep space communication was established, taking into account the characteristics of extremely long propagation delay, intermittent connectivity, asymmetric data rates and high error rates. Compared with the theoretical model built before, the model paid more attention to the different impacts of losses of different types of LTP data segments, multiple-session transmission characteristic of LTP, and calculated the expected value of transmission rounds. The performance of theoretical model with different channel BERs and file sizes was simulated and analyzed by MATLAB. A DTN testbed was built and the actual file transfer experiments …
Identification Of Takagi-Sugeno Model With Self-Gravitational Search Algorithm,
2020
College of Computing & Electrical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
Identification Of Takagi-Sugeno Model With Self-Gravitational Search Algorithm, Ao Yuan, Xueming Ding
Journal of System Simulation
Abstract: An approach of Self-Gravitational Search Algorithm (SGSA) was proposed for the identification of T-S fuzzy model. In the identification of T-S model, structure parameters and consequent parameters were encoded into a particle of SGSA. Based on new strategies, all the individuals in SGSA dynamically adjusted the distance and force between particles according to the intensity of the swarm, and the gravitational constant was adaptively alerted. As a result, the global search ability of the proposed SGSA was enhanced in the earlier stage of the search process to prevent the algorithm from trapping into local regions, in the mean while; …
Real-Time Simulation Of Realistic Melting In Fluid-Solid Interaction,
2020
School of Control and Computer Engineering, North China Electric Power University, Baoding 071003, China;
Real-Time Simulation Of Realistic Melting In Fluid-Solid Interaction, Xuqiang Shao, Song Yu
Journal of System Simulation
Abstract: In order to realize real-time simulation of realistic melting in fluid-solid coupling, a particle-based GPU parallel simulation method was proposed. This method employed an implicit heat diffusion model which took the heat conduction properties of materials to update the temperatures of each particle. Based on the lattice shape matching method, a stable topology change method was proposed to simulate the conversion of solid particles to the fluid particles. In order to improve the time performance of each time step, a parallel simulation method entirely implemented on GPU was put forward, and an iterative filling algorithm was designed to dynamically …
Visual Simulation Of Eroded Rill Evolution Process On Graphics Processing Unit,
2020
1. School of Electronics and Information Engineering, Jinggangshan University, Ji'an 343009, China; ;2. Key Laboratory of Watershed Ecology and Geographical Environment Monitoring, NASG, Ji'an 343009, China;
Visual Simulation Of Eroded Rill Evolution Process On Graphics Processing Unit, Mansheng Long
Journal of System Simulation
Abstract: A slope erosion model based on CA (Cellular Automata) and a corresponding simulation algorithm based on GPU (Graphics Processing Unit) were proposed to visualize rapidly the dynamic process of water erosion and microrelief development on hillslope under rainfall events. The model is composed of processes such as rainfall, infiltration, runoff, erosion, deposition, and sediment transport. At each time step, water and sediment were exchanged among adjacent cells observing sediment mass conservation law and flow continuity equation. All cells update their runoff and sediment simultaneously complying with the above simple rules so as to realize the evolution of hillslope microrelief. …
Research Of The Construction Of Gis-T Traffic Simulation Road Network,
2020
1. Guangdong Provincial Key Laboratory of Intelligent Transportation System, Guangzhou, 510006, China; ;2. School of Engineering, Sun Yat-sen University, Guangzhou 510006, China; ;
Research Of The Construction Of Gis-T Traffic Simulation Road Network, Huang Min, Zhongming Niu, Xiaolan Zhang, Jiajie Pan, Xueqiang Zhang
Journal of System Simulation
Abstract: In order to provide road network data for traffic simulation platform on the base of GIS-T, a GIS-T road network data model was created. The model put the emphasis on the description of traffic rules and road markings. On the basis of data model, a quantified cut method for linear referencing was proposed and the method was adopted to create road network element, such as lane boundary and road surface. Furthermore, the carriageway was regarded as the unit to keep the shape of road segment, and flow of building a road network was put forward. An intersection …
Study On Simulation Technology Of Agile Satellite Working Mode Based On Mvc,
2020
Automation Institute of Harbin Engineering University, Harbin 150001, China;
Study On Simulation Technology Of Agile Satellite Working Mode Based On Mvc, Zhao Lin, Huizhi Yang, Hao Yong, Liu Yuan, Xiaowen Wu
Journal of System Simulation
Abstract: To study on the method and effectiveness of large angle maneuver and push broom imaging for agile satellite, an agile satellite working mode simulation system was established based on MVC though analyzing imaging model, satellite parameters and orbital parameters of Quickbird2, a high resolution of commercial remote sensing satellite in the United States. The simulation system took VC2010 as software development environment, adopted MVC framework technology to realize information exchange between various members of the system, put satellite orbit data, attitude data and imaging data of simulation output into STK engine to realize 2D/3D scene visualization of agile satellite …
Research On Assessment And Decision Making Simulation Platform For Performance Of Diesel Engine Mixed With Water,
2020
College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China;
Research On Assessment And Decision Making Simulation Platform For Performance Of Diesel Engine Mixed With Water, Xianghuan Zu, Chuanlei Yang, Yinyan Wang
Journal of System Simulation
Abstract: Focusing on assessment and decision making of the performance of diesel engine mixed with water under different water blending proportion, the grey decision making model for the best water blending proportion and evaluation model were established and implemented with the language of MATLAB based on grey decision making and grey-correlation analysis at first, which can offer theory supporting for the decision making of the best water blending proportion. The assessment and decision-making simulation platform was designed by GUI, which has the function of correlation analysis, decision making of the best water blending proportion, etc. The simulation platform case shows …
Research On City Agglomeration Compound Traffic Reliability,
2020
School of Transportation, Inner Mongolia University, Hohhot 010070, China;
Research On City Agglomeration Compound Traffic Reliability, Chengbing Li, Yucheng Hao, Wenying Wang
Journal of System Simulation
Abstract: To improve the city agglomeration traffic network's ability to fight a sudden disasters, empirical research was made on city agglomeration traffic network reliability from a new view. The weighted traffic network model of the single transportation mode in urban agglomeration was built so that city agglomeration compound traffic network was formed by the superposition. The change of the traffic network reliability was quantified from relative size maximum connectivity graph, local efficiency rate, global efficiency rate. The nodes and edges of weighted road traffic network and compound traffic network face random attack and deliberate attack were simulated, analyzing …
Analysis Of Evolutionary Game Of Stakeholders In Service-Oriented Manufacturing Project Governance,
2020
1. School of Economics and Management, Nanjing University of information Science &Technology, Nanjing 210044, China; ;2. Shanghai Cooperative Centre for WEEE Recycling, Shanghai Second Polytechnic University, Shanghai 201209, China; ;
Analysis Of Evolutionary Game Of Stakeholders In Service-Oriented Manufacturing Project Governance, Benhong Peng, Xiaofen Gu, Lu Qian
Journal of System Simulation
Abstract: For the project governance of service-oriented manufacturing, there are three stakeholders, namely core manufacturer, customer, and service provider. Stability of three participants' evolutionary game was analyzed, the evolutionary game model was constructed and the dynamic game process of three - party Strategy Selection was studied by means of system dynamics simulation. Research shows that three participants eventually reach a steady state, which is core manufacture supervising, customer joining in, and service provider working hard; customer pays more attention to insured factors when choosing strategy; service provider's endeavor does not always aggrandize customer's expected revenue; The core manufacturing should fix …
Numerical Study Of Characteristics Of Gas Liquid Coaxial Injector As Acoustic Resonator,
2020
1. Department of Postgraduate, Equipment Academy, Beijing 101416, China; ;
Numerical Study Of Characteristics Of Gas Liquid Coaxial Injector As Acoustic Resonator, Honghui An, Wansheng Nie
Journal of System Simulation
Abstract: The gas-liquid injector of the rocket engine was simplified to a quarter-wave resonator and a half-wave resonator respectively by adopting linear acoustic analysis. Acoustic-damping effect of the length and inlet jet of the injector on the first tangential mode of the chamber was found for ambient condition. It is found that when the first order longitudinal mode frequency of the injector is equal to the acoustic mode frequency of the combustion chamber intended for damping, for the inlet jet is choked, the optimum length of the injector to maximize damping capacity is near quarter of a full wavelength of …
Optimal Configuration Method Of Block Spare Parts For K/N Systems Considering Cannibalization,
2020
1. Unit 93502 of PLA, Hohhot 010051, China; ;2. Air Force Early Warning Academy, Wuhan 430019, China;
Optimal Configuration Method Of Block Spare Parts For K/N Systems Considering Cannibalization, Yongpan Wang, Chunhe Chang, Jiangping Yang
Journal of System Simulation
Abstract: Aiming at the configuration problem of block spare parts in k/N systems, an optimal configuration method of block spare parts considering cannibalization and on-condition maintenance was proposed. A spare parts fill rate model for k/N systems was established on the basis of two parameters named cannibalization rate and SRU replacement rate, and the constraint conditions of both the parameters were given respectively. An optimal configuration model was built, which chose the minimum spare costs as the object and the spare fill rate as the subject, and a model solution algorithm based on the margin analysis theory was given. …
Adaptive Control For Hydraulic Servo Position System With Bounded Input,
2020
College of Information Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China;
Adaptive Control For Hydraulic Servo Position System With Bounded Input, Jianfei Shi, Shujuan Yi
Journal of System Simulation
Abstract: An adaptive state feedback controller based on neural network fitting was proposed for hydraulic servo position systems containing parameter uncertainties, external disturbance and bounded input problem. Taking the saturation characteristic into account sufficiently, the adaptive state feedback trajectory tracking controller was designed with an adaptive law to real-timely adjust the disturbance parameters and the bounded hyperbolic tangent functions to promise the bounded of the control law. Moreover, the complete stability and performance analysis were presented using Lyapunov theory. Simulation results show the effectiveness of the designed controller for the trajectory tracking in the present of actuators saturation.
Simulation Study Of Nuclear Fuel Cycle Mode Based On Third Generation Pwr In China,
2020
1. Department of Automation North China Electric Power University, Baoding 071003, China; ;2. China Techenergy Co., LTD, Beijing 100094, China;
Simulation Study Of Nuclear Fuel Cycle Mode Based On Third Generation Pwr In China, Zhibin Liu, Ma Jin, Bingshu Wang, Xinhui Duan
Journal of System Simulation
Abstract: Based on the State Council 2012 Nuclear Safety Plan (2011-2020) and Nuclear Medium and Long-term Development Plan(2011-2020), the report of the research on China energy medium and long-term(2030, 2050) development strategyof China Academy of Engineering Physics and Chinese 13th Five-Year Plan combined the primary of operating M310 type reactors and the third generation HPR1000, AP1000, CAP1400, and the current and future PWR nuclear fuel cycle mode was studied under MATLAB simulation environment employing once through mode. The demand of natural uranium resource, separate works, the amount of spent fuel, plutonium, also minor actinides arising following the accumulative PWR …
Combinatorial Optimization Of 3d Visualization Simulation Based On Automatic-Correction,
2020
1. College of Computer Science and Technology of Henan Polytechnic University, Jiaozuo 454000, China;;
Combinatorial Optimization Of 3d Visualization Simulation Based On Automatic-Correction, Yanyang Zeng, Qingqing Pei, Fengju Kang
Journal of System Simulation
Abstract: In order to enhance the visual simulation results, developers often need to combine and optimize the fine expression of the above entities, terrain and physical field by the individual experience under conditions of limited computer resources. The iterative process of debugging cycle is long, and it is difficult to solve the contradiction between good fidelity and real-time. So, cybernetics ideas, and proposes semi/fully automatic correction technology were introduced, which is composed of discrete multi-resolution representation of the three-dimensional model, assessment of visual effects and intelligent optimization, providing a decision support method for three-dimensional visual development. The method was applied …
Research Of Modeling Of Spatial Information Support Sos Based On Complex Network Theory,
2020
1. Department of Information Operation & Command Training, National Defense University, Beijing 100091, China;;
Research Of Modeling Of Spatial Information Support Sos Based On Complex Network Theory, Qingjun Zhang, Mingzhi Zhang, Qingjuan Zhang, Wu Xi
Journal of System Simulation
Abstract: Spatial information support system as the main body of space operations, in the future network of joint operations, plays a central role. Based on the characteristics of spatial information support system, a modeling method combining multi-agent, multi-resolution and complex network was proposed, and the spatial information support system model framework was constructed. Multi-agent model, multi - resolution model and complex network model were established, and the connectivity rate in the complex network model was simulated and analyzed, so as to lay the foundation for further research on the modeling of spatial information support system.
Indoor Positioning Algorithm For Rfid Based On Newton Interpolation And Support Vector Regression Optimized By Hybridizing Grey Wolf Optimization,
2020
Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Jiangnan University, Wuxi 214122, China;
Indoor Positioning Algorithm For Rfid Based On Newton Interpolation And Support Vector Regression Optimized By Hybridizing Grey Wolf Optimization, Yangjie Xu, Wang Yan, Dahu Yan, Zhicheng Ji
Journal of System Simulation
Abstract: Since the traditional LANDMARC location algorithms have poor positioning accuracy and cost laborious efforts to decorate reference tags in the RFID positioning system, a novel positioning algorithm proposed is based on the Newton interpolation method and support vector regression optimized by hybridizing grey wolf optimization with differential evolution (HGWOSVR). By using the proposed algorithm, Gaussian filter was used to deal with the sampling data of the reference tags.Newton interpolation method was adopted to estimate the RSS value of other reference tags to expand database. The HGWOSVR algorithm was employed to build the nonlinear relationship between the RSS value of …
Research On Real-Time Arterial Coordination Traffic Signal Control Model Based On Minimum Per Capita Delay,
2020
School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
Research On Real-Time Arterial Coordination Traffic Signal Control Model Based On Minimum Per Capita Delay, Li Yang, Pengpeng Jiao, Meiqi Liu
Journal of System Simulation
Abstract: To improve overall efficiency for all travelers of artery system, a real-time arterial coordination traffic signal control model was proposed. The model not only satisfied minimum per capita delay for all travelers on motor vehicles, but also selected effective green time and phase difference as the optimized parameters. The model of vehicle head delay and team tail delay was established based on traffic wave theory. The vehicle delay model for bus and social vehicles was developed in light of different occupancy rates, besides, the per capita delay could be obtained by introducing it. The results show that the …
Radar Emitter Signal Identification Based On Slide+Svm,
2020
College of Electrical Engineering Southwest Jiaotong University, Chengdu 610031, China;
Radar Emitter Signal Identification Based On Slide+Svm, Yingkun Huang, Weidong Jin
Journal of System Simulation
Abstract: For the deficiency of traditional techniques of emitter signal feature extraction which heavily rely on experience, a model of radar emitting signal identification based on feature self-learning was proposed. This model consists of following 2 parts. Firstly, transform radar signal into frequency domain, then reduce signal dimension by using improved Piecewise Aggregate Approximation (PAA) method. Secondly, create the model of multi-layer Liner Denoiser (LIDE) to feature learning by using unsupervised training method. The validity of model was verified by simulating 5 different kinds of emitting signal with the outcome that excellent identification accuracy could be achieved at …
Multi-Scale Mesh Saliency With Local Patch Weighted Curvature Entropy,
2020
1. Marine College, Northwestern Polytechnical University, Xi'an 710072, China;;2. National Key Laboratory of Underwater Information Process and Control, Xi'an 710072, China;;
Multi-Scale Mesh Saliency With Local Patch Weighted Curvature Entropy, Xiaodong Wang, Hongtao Liang, Fengju Kang, Gu Hao
Journal of System Simulation
Abstract: Mesh saliency is an important geometrical characteristic of 3D mesh model and has been applied in many applications. Inspired by the existing algorithms, a novel multi-scale saliency detection method based on local patch weighted curvature entropy was proposed. A local coordinate system and curvature value of each vertex was estimated. An improved adaptive patch was defined on the tangent plane using accumulated volume of neighborhood. Furthermore, deviation of the patch of each vertex to their neighborhood was defined as the weight of curvature value. The Shannon entropy of weighted curvature values of neighbor vertices within a sphere …
