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Evasive Maneuvers Against Missiles For Unmanned Combat Aerial Vehicle In Autonomous Air Combat, Xizhong Yang, Jianliang Ai 2019 Department of Aeronautics and Astronautics, Fudan University, Shanghai 200433, China;

Evasive Maneuvers Against Missiles For Unmanned Combat Aerial Vehicle In Autonomous Air Combat, Xizhong Yang, Jianliang Ai

Journal of System Simulation

Abstract: For UCAV having the capability to deal with autonomous air combat, the flight dynamics model with the overload input and the 3-dimensional proportional navigation guidance model were established. Based on artificial neural network, an evasive maneuver decision was presented for avoiding incoming missiles. The degrees of freedom for UCAV-missile system were reduced by coordinate transformation, which simplified the complicated model as a non-linear model with relatively small amount of input and a single output. After the neural network samples were generated and trained, evasive results could be directly predicted from the relationship of positions between UCAV and missile …


Evaluation On Pilot Performance Of Detecting Runway Incursion Based On Visual Simulation, Kun Yang, Xiangyu Ge, Pengfei Ju, Bai Jie 2019 Civil Aircraft Airworthiness Certification Technology and Management Research Center, Tianjin 300300, China;

Evaluation On Pilot Performance Of Detecting Runway Incursion Based On Visual Simulation, Kun Yang, Xiangyu Ge, Pengfei Ju, Bai Jie

Journal of System Simulation

Abstract: In order to evaluate the performance of pilots using HUD and PFD to detect runway incursion under approach and landing circumstances, a visual simulation system for transport category airplanes is designed by visual simulation technology. The system includes models of head up display (HUD), primary flight display (PFD), cockpit of transport category airplanes, 3-D terrain of airport. And a program is written to read flight joystick data to control flight. On this visual simulation system, performance experiment of pilots using HUD and PFD to detect runway incursion is carried out. Analysis results show that the response time of …


Simulation Research Of General Cargo Terminal Operation Based On Plant Simulation, Zhixiong Liu, Xiong Yang, Xingxu Deng, Yuting Chen 2019 School of Automobile and Traffic Engineering, Wuhan University of Science and Technology, Wuhan 430081, China;

Simulation Research Of General Cargo Terminal Operation Based On Plant Simulation, Zhixiong Liu, Xiong Yang, Xingxu Deng, Yuting Chen

Journal of System Simulation

Abstract: Combined with the key link of the general cargo loading and unloading operations, the system simulation method is employed to analyze the production efficiency for the general cargo handling operation. The Plant Simulation software is used to design the main modules of the production process such as collection operation, vessel arrival, yard operation, horizontal transportation, ship-loading operation. The simulation model of general cargo handling operation is established based on the whole operation process. The simulation model is running based on the practical production data, and the efficiency of the crane, transitions time and the average storage period are analyzed. …


Synthesized Capability-Effectiveness Evaluation Method Of Contribution Ratio To System-Of-Systems, Xiaobo Li, Lin Mu, Zhe Shu, Guibai Liu, Wang Tao, Weiping Wang 2019 1.College of Information System and Management, National University of Defense Technology, Changsha 410073, China; ;

Synthesized Capability-Effectiveness Evaluation Method Of Contribution Ratio To System-Of-Systems, Xiaobo Li, Lin Mu, Zhe Shu, Guibai Liu, Wang Tao, Weiping Wang

Journal of System Simulation

Abstract: Since modern combats represent the development trend of systematization and network, it has become an essential requirement to build and use the equipment through a system-of-systems approach. The evaluation of contribution ratio to system-of-systems (CRSOS) is an important means to advance the development of weapon equipment systematization, and it is also urgently needed to carry out in-depth research on the theoretical concepts and methods. This paper establishes the research framework of CRSOS from the classification of contribution type and the equipment management life cycle. It proposes a CRSOS definition from the perspective of capability-efficiency dimension based on current …


Research On The Conceptual Modeling Of Coa For Analysis Of Wargaming, Zhaopeng Liu, Shaojun Liu, Guangya Si, Zhou Wen 2019 1. College of Joint Operation, National Defense University, Beijing 100091, China; ;2. War Research Institute, Academy of Military Science, Beijing 100091, China;

Research On The Conceptual Modeling Of Coa For Analysis Of Wargaming, Zhaopeng Liu, Shaojun Liu, Guangya Si, Zhou Wen

Journal of System Simulation

Abstract: On the background of the Campaign COA analysis with simulation system wargaming, aiming at the information sharing problem in the course of wargaming, the composition and difference of the domestic and foreign COA are deeply analyzed, and the development trend of the COA modeling methods are also analyzed. The COA models are divided into the conceptual models and the solution models for the first time, and the limitation of the current COA conceptual models is analyzed with this viewpoint. For the characteristics of across the campaign level and tactical level during the process of the COA wargaming, utilizing …


Research And Realization Of 3d Scene Modeling In Chemical Industry Park, Hongyue Zhu, Bin Chen, Xiaodong Wang, Rongxiao Wang, Zhengqiu Zhu, Xiaogang Qiu 2019 1. College of System Engineering, National University of Defense Technology, Changsha 410073, China; ;

Research And Realization Of 3d Scene Modeling In Chemical Industry Park, Hongyue Zhu, Bin Chen, Xiaodong Wang, Rongxiao Wang, Zhengqiu Zhu, Xiaogang Qiu

Journal of System Simulation

Abstract: Aiming at the visualization of atmospheric pollution monitoring data in chemical parks, the method of 3D modeling in chemical industry parks is studied, and a remote-web-login and realistic three-dimensional visual information management system based on GIS remote sensing data and sensors’ monitoring data is realized. For simple objects such as buildings, rapid modeling based on GIS data is used; for complex objects such as chemical devices, 3ds Max and UAV tilt photography are combined to model; in terms of visualization, Cesium-based web front-end development technology is adopted. By adopting the above modeling methods in combination, not only the repetitive …


Online Modeling With Semi-Supervised Locally Weighted Partial Least Squares Based On Expectation Maximization Algorithm, Weili Xiong, Mingchen Xue, Yanjun Li 2019 1.School of Internet of Things Engineering, Institute of Automation, Jiangnan University, Wuxi 214122, China; ;2.Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Jiangnan University, Wuxi 214122, China;

Online Modeling With Semi-Supervised Locally Weighted Partial Least Squares Based On Expectation Maximization Algorithm, Weili Xiong, Mingchen Xue, Yanjun Li

Journal of System Simulation

Abstract: As only small proportion of labeled data can be obtained from chemical processes, an online soft sensing modeling method based on semi-supervised locally weighted partial least squares is proposed . The labeled and unlabeled historical data are accumulated to construct training database. The similarity between the newly measured data and the sample points in the database are calculated and used as the weight of each data point. The semi-supervised locally weighted partial least squares model is constructed, and the Expectation Maximization (EM) algorithm is employed to estimate the parameters of the model. Online prediction achieves simulation results of debutanizer …


Historical Data Modeling Based On State Observation, Dong Ze, Erxin Yin 2019 Hebei Engineering Research Center of Simulation & Optimized Control for Power Generation(North China Electric Power University), Baoding 071003, China;

Historical Data Modeling Based On State Observation, Dong Ze, Erxin Yin

Journal of System Simulation

Abstract: Aiming at the problem that the conventional historical data modeling method can not overcome the influence of disturbance on modeling accuracy, a historical data modeling method based on state observation is proposed. In this method, the data with the characteristic from dynamic to steady state are selected from the historical data as the modeling data, which is subjected to zero initialization processing based on the final steady state value. The processed data is then divided into two segments. The first segment is used to track the state of the prediction model, and the final observed state is used as …


Facial Expression Recognition Based On Improved Dictionary Learning And Sparse Representation, Li Ming, Xiujiao Peng, Wang Yan 2019 1.School of Information Engineering, Nanchang Hangkong University, Nanchang 330063, China; ;2.College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;

Facial Expression Recognition Based On Improved Dictionary Learning And Sparse Representation, Li Ming, Xiujiao Peng, Wang Yan

Journal of System Simulation

Abstract: In order to overcome the problems induced by illumination andocclude in facial expression recognition and reduce the time required by sparse representation classification, the facial expression recognition algorithm withfusion of HOG feature and improved KC-FDDL dictionary learning sparserepresentation is put forward. Improved K-means cluster and Fisher discriminationdictionary learningis implemented on thetraining setgenerated by extracting HOG features of normalized expression image.Facial expression classification is conducted by thesparse representation with weighted residuals. Experimental results on the Cohn-Kanade databaseshow that this method is lower time-consumingand more accurate for similar facial expression classification than other facial expression classification methods.


Modeling And Simulation Of Difg Unit With Stator Inter-Turn Fault, Boqiang Xu, Liling Sun, Wenjuan Du 2019 School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China;

Modeling And Simulation Of Difg Unit With Stator Inter-Turn Fault, Boqiang Xu, Liling Sun, Wenjuan Du

Journal of System Simulation

Abstract: The mathematical model of doubly fed induction generator (DFIG) with stator inter-turn fault, which presents itself as standard form state space equation, is deduced and established, for the first time. The corresponding simulation model, i.e. Matlab S-function block is developed and embedded in a Matlab built-in routine simulating DFIG unit comprising wind turbine, converter, related mechanical/electrical control and DFIG. The simulation model of DFIG unit with stator inter-turn fault is established, which is a beneficial extension of Matlab simulation. The stability of DFIG unit under the healthy and faulty conditions is analyzed by using simulation. The results show …


Research And Application Of Damage Development Of Rock Mass With Complex Structure Under Horizontal Offset, Tiejun Cui, Shasha Li, Yundong Ma, Laigui Wang 2019 1.College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China; ;2.Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education, Fuxin 123000, China; ;3.Tunnel & Underground Structure Engineering Center of Liaoning, Dalian Jiaotong University, Dalian 116028, China; ;

Research And Application Of Damage Development Of Rock Mass With Complex Structure Under Horizontal Offset, Tiejun Cui, Shasha Li, Yundong Ma, Laigui Wang

Journal of System Simulation

Abstract: In order to understand the stress and strain of the complex overlying strata with horizontal offset in service time of mining, the model of the overburden mining regions is created by PFM with the simulation platform of PFC3D. The overlying strata contains five layers including intrusive igneous rock, of which the bottom rock has anticline and syncline structure due to tectonic stress. The stress and strain characteristics of the five layers of rock mass are analyzed. Studies show that it takes the compressive stress 379 years to penetrate the overlying strata. The strongest penetrate path of the compressive stress …


Method Of Power System Energy Storage Configuration Based On Flexibility Promotion, Weiqing Sun, Li Zhen, Yiming Tan, Fenglei Lü, Wenping Qiu, Hongzhong Li 2019 1.School of Optical-Electrical and Computer Engineering, University of Shanghai for Science & Technology, Shanghai 200093, China; ;

Method Of Power System Energy Storage Configuration Based On Flexibility Promotion, Weiqing Sun, Li Zhen, Yiming Tan, Fenglei Lü, Wenping Qiu, Hongzhong Li

Journal of System Simulation

Abstract: To solve the problem of renewable energy access and aiming at system’s response capability to short-term uncertainty, power system flexibility and its evaluation index are defined. A method of energy storage configuration based on flexibility evaluation is proposed. The uncertainty from power supply is analyzed. Aiming at the uncertainty of renewable energy, a source flexibility evaluation index is defined. The principle and method of energy storage configuration are presented from the aspect of siting and sizing. The energy storage configuration model is created and solved considering both the system flexibility requirements and energy storage costs based on the …


Optimization Design Of Fuzzy Energy Management For Plug-In Hybrid Electric Vehicles, Xiaolan Wu, Zhifeng Bai, Xiaohui Shi, Binggang Cao 2019 1.School of Mechanical and Electrical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; ;

Optimization Design Of Fuzzy Energy Management For Plug-In Hybrid Electric Vehicles, Xiaolan Wu, Zhifeng Bai, Xiaohui Shi, Binggang Cao

Journal of System Simulation

Abstract: Because of complex system configuration, it is difficult to find precise mathematics model of PHEV drivetrain. The fuzzy controller design depends mainly on expert’s experience and has much subjectivity. A fuzzy energy management strategy (EMS) based on particle swarm optimization (PSO) is presented. In this EMS, the fuzzy rules obtained from expert knowledge are unaltered and the PSO is used to optimize the parameters of membership functions of the fuzzy controller. The provided EMS model is built by Matlab/simulink and embedded in the Advisor software for simulation and comparative analysis. The result shows that, compared with the conventional …


Apriori-Based Association Rule Algorithm And Its Application In Power Plant, Wencheng Huang, Jia Li, Daogang Peng, Li Wang 2019 1.School of Mechatronical Engineering and Automation, Shanghai University, Shanghai 200072, China; ;

Apriori-Based Association Rule Algorithm And Its Application In Power Plant, Wencheng Huang, Jia Li, Daogang Peng, Li Wang

Journal of System Simulation

Abstract: The data mining technology for historical data of power plant has the problem of low efficiency as the data dimension is high and data size is large. Some parameters are set without theoretical guidance and the objective parameter value is not reasonably determined in the corresponding algorithm of data mining. A mining algorithm with improved quantitative association rule based on Apriori is proposed. Aiming at the economical operation of power plant, target guidance is used to constrain the dimension and compress the quantity in sample space, which improves the mining efficiency and determines the parameter’s target value reasonably. …


Application Of Pwa-Based Safety Diagnosis Method In Cstr System, Yuhong Wang, Yang Pu 2019 College of Information and Control Engineering, China University of Petroleum (East China), Qingdao 266580, China;

Application Of Pwa-Based Safety Diagnosis Method In Cstr System, Yuhong Wang, Yang Pu

Journal of System Simulation

Abstract: A safety diagnosis method based on piecewise affine (PWA) model is proposed for ensuring the safety of the petrochemical process. In the method, the petrochemical system is modeled in PWA form which can well describe the nonlinear and hybrid characteristic of the system. Then a formal verification algorithm based on reachable analysis is used to get reachable sets of system states according to the established model. It can predict whether the system is in danger or not in advance so as to take the corresponding measures to ensure the reliability and safety of the system. The proposed method is …


Unsteady State Diffusion Of Pollutants During Cargo Compartment Fire, Yang Dong, Liu Zhen, Shibin Yang, Xiaozhe Sun 2019 1.State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an 710049, China; ;

Unsteady State Diffusion Of Pollutants During Cargo Compartment Fire, Yang Dong, Liu Zhen, Shibin Yang, Xiaozhe Sun

Journal of System Simulation

Abstract: The transport of the pollutant gas and smoke in aircraft cargo compartment is investigated numerically on the occurrence of fire disaster. The analysis model based on the volume fire source is established. The 3D unsteady Navier-Stokes equations and transport equations are solved using finite-volume method. The distribution of the temperature is achieved and the unsteady transport principle of pollutant gases and the smoke is analyzed. Numerical results match well with the experiments results, which verifies the correctness of the numerical method. Results show that the ceiling spray behavior is observed when the thermal air is driven by the buoyancy …


Nonlinear Characteristics Of Transmission System Of Shearer Cutting Unit, Dongsheng Zhang, Haiyang Yu, Jianbo Xu, Li Yan 2019 School of Mechanical Engineering, Liaoning Technical University, Fuxin 123000, China;

Nonlinear Characteristics Of Transmission System Of Shearer Cutting Unit, Dongsheng Zhang, Haiyang Yu, Jianbo Xu, Li Yan

Journal of System Simulation

Abstract: The nonlinear dynamics model of gear transmissionsystem of shearer cutting unit is established. The nonlinear dynamics theory of gear is applied to the transmission system of shearer cutting unit, and the effect of damping ratio and vibration frequency on the nonlinear dynamics of the system is considered. Fourth order Runge-Kutta method with variable step is employed to solve the nonlinear systems differential equations. The phase plan and Poincare section of the system response are obtained with different parameters. The results show that the nonlinear influence of the displacement response of the solar wheel is stronger when the damping ratio …


Design And Realization Of Rfid-Enabled Conwip Strategy For Multi-Echelon Inventory Of Distribution Network, Xiaoju Han, Dingwei Wang 2019 1.College of Information Science and Engineering, Northeastern University, Shenyang 110819, China; ;2.School of Automation Engineering, Northeast Dianli University, Jilin 132012, China;

Design And Realization Of Rfid-Enabled Conwip Strategy For Multi-Echelon Inventory Of Distribution Network, Xiaoju Han, Dingwei Wang

Journal of System Simulation

Abstract: Because the RFID technology can visualize the quantity on the way and the inventory status of the supply chain remotely and in real-time,a RFID-enabled electronic card system is designed. The CONWIP control strategy of multi-echelon production inventory system is extended to thedistribution network ofsupply chain.The CONWIPcontrol strategy model is established, and experimental simulation system is exploited. The strategy is compared with the (r,Q) and Push strategies under different network structuresof supply chain. The strategies’ influences on the performance of supply chain are verified by calculating the evaluationindex. Simulation results show that the RFID-Enabled CONWIP strategycan …


Simulation Of Electronic Transformer In Line With Ft3 Frame Format, Yu Fei, Hailong Zhang, Qingle Sun 2019 College of Automation and Electronic Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;

Simulation Of Electronic Transformer In Line With Ft3 Frame Format, Yu Fei, Hailong Zhang, Qingle Sun

Journal of System Simulation

Abstract: In the power system, electronic current transformer based on the Rogowski coil has been widely used in digital substation. Based on the analysis of its composition and structure, the electronic transformer is simulated by the Simulink module in Matlab. Rogowski coil is used to simulate the traditional transformer. Using Σ-Δ ADC converter and digital filter, analog signal from the high-pressure side is converted to digital output data, which is sent via fiber optic Ethernet to FPGA development board after FT3 format framing by Simulink. The data is then sent to the merged unit of transformer’s interface after Manchester encoding …


Study On Vehicle Handling Inverse Dynamics Based On Model Predictive Control Theory, Yingjie Liu, Liu Yun, Shanshan Guo 2019 School of Mechanical-Electronic and Vehicle Engineering, Weifang University, Weifang 261061, China;

Study On Vehicle Handling Inverse Dynamics Based On Model Predictive Control Theory, Yingjie Liu, Liu Yun, Shanshan Guo

Journal of System Simulation

Abstract: In order to solve the problem that driver modeling is difficult in vehicle handling dynamics, a study method of vehicle handling inverse dynamics is proposed. Based on model predictive control (MPC), the steering angle input is used as the control variable and the control object is to track the desired path. The optimal control problem of tracking the given path with high speed in vehicle handling inverse dynamics is converted into a secondary planning problem which is then solved by the active set method. The results show that the model predictive control has the advantage of high computing precision …


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