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2017年第3期

时间:2017-05-15 15:19:02??来源:??作者:

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多语竞争复杂agent网络语言竞争与演化分析
张寿明1,于群修1,毕贵红2*
1.昆明理工大学信息工程与自动化学院,云南昆明 6505002.昆明理工大学电力工程学院,云南昆明 650500
摘要:利用基于社会圈子理论的agent微观建模技术来构建语言竞争社会网络。构建的网络不仅拓扑结构参数更接近实际社会网络,而且网络中的个体可以移动、死亡和新生,具有动态特性。以三语竞争为例,提出一种将网络中的个体间三语竞争分解为3个两种语言竞争问题的原理,给出了一种基于双语竞争原理的通用多语竞争复杂agent网络仿真建模方法。给出了网络上的节点agent的学习和遗忘模型。利用建立的模型研究了在不同社会环境中个体的语言竞争演化路径。研究表明给出的模型正确模拟了三语竞争问题。
关键词:微观建模;多语竞争;社会圈子;复杂网络;agent
中图分类号:TP391.9????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0463-17
DOI: 10.16182/j.issn1004731x.joss.201703001
Complex Agent Network and Evolution Analysis for Multi-lingual Competition
Zhang Shouming1, Yu Qunxiu1, Bi Guihong2*
(1. College of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China;2. College of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China)
Abstract:Dynamic social network model for the competition among languages with agent based modeling method and social circles theory was proposed. The parameters of the topological structure of constructed social network were closer to the actual social network. The individual agents in the network can move, dead and reproduce, so the constructed social network was endowed with dynamic characteristics. Took the trilingual competition as an example, a theory was put forward which decomposes the individual competition into the three times of bilingual competition problems. Based on it, we presented a universal complex agent network method for multi-lingual competition and policy intervention. The model of learning and forgetting of the agents in the network was proposed. It is used to study the individual language competition in different social environment evolution paths. The simulation results show that the presented model can describe the trilingual competition problem correctly.
Keywords: microscopic modeling technology; multi-lingual competition; social circle network; complex network; agent
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深空通信LTP传递时延的理论建模及试验验证
王洋,杨宏,陈晓光,丁凯
(中国空间技术研究院载人航天总体部,北京 100094)
摘要:针对深空通信长链路时延、频繁的链路中断及高误比特率特性,对LTP(Licklider Transmission Protocol)传递时延的性能通过数学分析的方法进行了理论建模。该模型相比于以往模型,考虑了不同类型LTP数据段丢失所造成的不同影响,LTP多个会话同时传输的特性,以及采用求期望值的方法来计算传输回合数。同时,对该模型在不同误比特率、不同文件大小下的结果用MATLAB进行了数值仿真分析。构建了深空DTN仿真平台,运行真实的文件传递试验,测试结果逼近理论模型数值分析结果,对理论模型进行了验证。
关键词:延迟容忍网络;利克里德传输协议;深空通信网络;理论模型;DTN仿真平台
中图分类号:TP393????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0479-08
DOI: 10.16182/j.issn1004731x.joss.201703002
Theoretical Model and Validation of Delivery Time of LTP in Deep Space Communication
Wang Yang, Yang Hong, Chen Xiaoguang, Ding Kai
(Institute of Manned Space System Engineering, China Academy of Space Technology, Beijing 100094, China)
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 were carried out to validate the accuracy of the model.
Keywords: DTN; LTP; deep space network; theoretical model; DTN testbed
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基于自适应引力搜索算法的T-S模型辨识
敖媛,丁学明
(上海理工大学光电信息与计算机工程学院,上海 200093)
摘要:提出一种基于自适应引力搜索算法(Self-Gravitational Search Algorithm, SGSA)的T-S模型辨识方法,T-S模型的前件参数和后件参数编码进一个粒子中用SGSA辨识。SGSA是针对标准引力搜索算法(GSA)收敛过快的缺点,在GSA的基础上,根据群体密集程度动态调整粒子间的距离和受力大小,并自适应修改引力常数G的改进引力搜索算法。不仅增加了算法在前期的全局搜索能力,防止其过早收敛;而且降低了算法在后期最优解附近震荡的影响,提高了算法的开采能力。仿真结果表明该方法能获得较高的辨识精度,验证了算法的有效性。
关键词:T-S模型;系统辨识;自适应;引力搜索算法
中图分类号:TP 237????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0487-07
DOI: 10.16182/j.issn1004731x.joss.201703003
Identification of Takagi-Sugeno Model with Self-gravitational Search Algorithm
Ao Yuan, Ding Xueming
(College of Computing & Electrical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China)
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; the local search capability was improved in the latter iterations of optimization to reduce the probability of the algorithm fruitlessly searching around the local optima. The simulation results and comparative analysis demonstrate the good performance of the proposed method with high accuracy and great robustness.
Keywords: T-S model; system identification; self-adaption; GSA
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无人机MIMO信道的GBSBCER模型及特性分析
高喜俊,陈自力,胡永江,周子栋
(军械工程学院无人机工程系,河北 石家庄 050003)
摘要:针对无人机MIMO三维单跳同心椭圆环(GBSBCER)信道模型,给出无人机空时频信道相关函数的简要形式,推导了归一化无人机MIMO信道相关矩阵,应用该矩阵分析了天线结构、飞行距离以及散射体分布等参数对无人机MIMO信道矩阵条件数和容量等信道特性参量的影响。仿真表明,通过合理布局天线,调整飞行参数可以提高无人机MIMO通信性能,为实现MIMO技术在无人机通信系统的应用提供理论基础。
关键词:无人机MIMO;信道模型;矩阵条件数;信道容量;相关矩阵
中图分类号:V234??????? 文献标识码:A???????? 文章编号:1004-731X (2017) 03-0494-09
DOI: 10.16182/j.issn1004731x.joss.201703004
UAV-MIMO Channel Characteristic Analysis Based on GBSBCS Model
Gao Xijun, Chen Zili, Hu Yongjiang, Zhou Zidong
(Department of UAV Engineering, Ordnance Engineering College, Shijiazhuang 050003, China)
Abstract: The simple form of UAV space-time-frequency channel correlation function was presented based on the three-dimensional geometrically based single bounce concentric elliptic ring scattering (GBSBCER) channel model of Multi-Input Multi-OutputMIMOfor Unmanned Aerial Vehicle (UAV). The analytic formula of UAV-MIMO normalized correlation matrix was deduced. The effect of antennas structures, flight distance and scatters distributing on the characteristic parameters such as the condition number of UAV-MIMO channel matrix and the channel capacity were analyzed by this formula. The simulation results show that, the performance of UAV-MIMO communication can be improved by reasonably arranging the antennas, adjusting the flight parameters, which lays a theoretical foundation for realizing the application of MIMO technology in UAV communication system.
Keywords: UAV-MIMO; channel model; matrix condition number; channel capacity; correlation matrix
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固流交互中真实感溶化现象的实时模拟
邵绪强,宋雨
(华北电力大学控制与计算机工程学院,河北 保定 071003)
摘要:为实现固流交互中真实感溶化现象的实时模拟,提出了基于粒子的GPU(Graphics Processing Unit)并行溶化模拟算法。利用考虑材料热传导属性的隐式热传递计算模型更新粒子温度;然后基于格子形状算法给出物体的稳定性拓扑改变方法模拟固体粒子向流体粒子的转化。为加速每个时间步内计算以达到实时性能,给出了GPU并行计算方案,并采用并行迭代填充算法来动态更新固体粒子的邻居信息。实验结果表明,所给算法在中等粒子规模下实现了真实感溶化现象的实时模拟。
关键词:粒子系统;溶化;真实感模拟;实时模拟;GPU
中图分类号:TP391.9????? 文献标识码:A??? ???文章编号:1004-731X (2017) 03-0502-07
DOI: 10.16182/j.issn1004731x.joss.201703005
Real-time Simulation of Realistic Melting in Fluid-solid Interaction
Shao Xuqiang, Song Yu
(School of Control and Computer Engineering, North China Electric Power University, Baoding 071003, China)
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 update each region according to the phase transition of solid particles. The results show that the method can achieve the real-time simulation of realistic melting in fluid-solid coupling for medium complex scenes.
Keywords: particle system; melting; realistic simulation; real-time simulation; GPU
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飞机客舱火灾阴燃阶段CO扩散规律的数值模拟
林家泉,王瑞婷,皮骏,马敏,杨建忠
(中国民航大学电子信息与自动化学院,天津 300300)
摘要:为研究飞机客舱空调的送风速度对火灾阴燃阶段释放CO的影响以及不同送风速度下CO的扩散规律对人体的危害影响,建立了A320飞机客舱的仿真模型,基于流体动力学控制方程,模拟了不同送风速度下飞机客舱内的风速场和CO浓度场。分析了在不同方向上CO的扩散规律,得到了空调送风速度与客舱内CO浓度值及扩散范围之间的关系计算了不同送风速度下人体呼吸位置的排污效率,得到送风速度与排污效率之间的关系,所得的数值模拟结果为飞机客舱火灾阴燃阶段CO扩散规律及毒性研究提供依据。
关键词:CFD;A320飞机客舱;数值模拟;CO扩散
中图分类号:V245.3????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0509-07
DOI: 10.16182/j.issn1004731x.joss.201703006
Numerical Simulation of Diffusion Regularity of CO in Fire Smoldering Phase in Aircraft Cabin
Lin Jiaquan, Wang Ruiting, Pi Jun, Ma Min, Yang Jianzhong
(Institute of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China)
Abstract: In order to study the impact of the cabin air conditioning supply velocity on CO diffusing in the fire smoldering phase and the effect of the transportation of CO to human body, a simulation model of A320 aircraft cabin was established, and velocity field and CO concentration field under the different air supply velocity were simulated based on the fluid dynamics control equations. The relationship between the air conditioning supply velocity and the value of CO concentration as well as the diffusion area was obtained by the analysis of the transportation of CO in different directions. The drainage efficiency on human respiratory position under different air supply velocity was calculated, and the relationship of the drainage efficiency and air supply velocity was obtained. The results of numerical simulation provide a basis for CO diffusion regularity in aircraft cabin fire smoldering phase and the study of CO toxicity.
Keywords: CFD; A320 aircraft cabin; numerical simulation; CO diffusion
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基于GPU的坡面细沟发育过程可视化模拟
龙满生1,2
(1. 井冈山大学电子与信息工程学院,江西吉安 343009; 2. 流域生态与地理环境监测国家测绘地理信息局重点实验室, 江西吉安 343009)
摘要:为了快速表现降雨条件下坡面水蚀微地貌的动态发育过程,构建了基于元胞自动机的坡面水蚀模型,提出了基于GPU的可视化模拟算法。模型包括降雨、入渗、产流、侵蚀、沉积和输沙等过程,通过对元胞应用简单的水沙交换规则来实现产流产沙的同步演化。利用Perlin噪声来模拟微地貌和降雨等侵蚀因子的空间分异性与随机性,增强了坡面细沟发育的真实性。结果表明,该模型能够有效表现坡面细沟发育过程的分形特征,借助GPU可以大大提高坡面水蚀可视化模拟的实时性。
关键词:坡面侵蚀;细沟发育;元胞自动机;可视化模拟;图形处理器
中图分类号:TP391.9????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0516-08
DOI: 10.16182/j.issn1004731x.joss.201703007
Visual Simulation of Eroded Rill Evolution Process on Graphics Processing Unit
Long Mansheng1,2
(1. School of Electronics and Information Engineering, Jinggangshan University, Ji’an 343009, China; fAzag8879环亚手机|首页主页
2. Key Laboratory of Watershed Ecology and Geographical Environment Monitoring, NASG, Ji’an 343009, China)
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. Perlin noise was superimposed on the slope surface to model the spatial variation and randomness of erosion factors such as microrelief and rainfall, which enhanced the visual effect of rill development. The experiment results show that the slope erosion model based on CA can effectively characterize the rill development process on hillslope, and GPU can be used to greatly improve the real-time performance of slope erosion visualization.
Keywords: slope erosion; rill evolution; cellular automaton; visual simulation; graphics processing unit
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基于Kinect的三维玉米植株骨架提取
方志力1,2,温维亮1,郭新宇1,吴建伟3
1.北京农业信息技术研究中心/数字植物北京重点实验室/国家农业信息化工程技术研究中心/农业部农业信息技术重点实验室/北京农业物联网工程技术研究中心,北京 1000972.上海海洋大学信息学院,上海 2013063. 北京派得伟业科技发展有限公司,北京 100097
摘要:针对玉米植株三维骨架的快速获取问题,提出了一种基于Kinect自动获取玉米植株三维骨架的方法,采用由Kinect转换的点云数据,利用阈值分割的方法删除背景数据,根据玉米植株三维点云模型的高度分层,对每层点组采用二次循环迭代方法聚类,对每层中各子类求取中心点。中心点的集合即认为是玉米植株的骨架点。采用二次B样条曲线插值拟合连线。实验结果表明:方法获得的玉米植株三维线性骨架与通过三维数字化仪获得的三维线性骨架一致性较好,能够满足实验要求。
关键词:Kinect;三维点云;玉米骨架;聚类分析;二次B样条曲线
中图分类号:TP391.41????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0524-07
DOI: 10.16182/j.issn1004731x.joss.201703008
Skeleton extraction from three-dimensional maize based on Kinect
Fang Zhili1,2, Wen Weiliang1, Guo Xinyu1, Wu Jianwei3
(1. Beijing Research Center for Information Technology in Agriculture/ Beijing Key Lab of Digital Plant/ National Engineering Research CenterfAzag8879环亚手机|首页主页
for Information Technology in Agriculture/ Key Laboratory of Agri-information Ministry of Agriculture, P R China/ Beijing Agriculture InternetfAzag8879环亚手机|首页主页
of Things Engineering Technology Research Center, Beijing 100097, China; 2. Shanghai Ocean University Information College,fAzag8879环亚手机|首页主页
Shanghai 201306, China; 3.
Beijing PAIDE Science and Technology Development Co. Ltd., Beijing 100097, China)
Abstract: Aiming at acquiring three-dimensional skeleton of maize plant efficiently, an automatic three-dimensional maize plant skeleton extraction method based on Kinect data was proposed. Kinect data was transformed into point cloud data. Background point cloud was deleted by threshold segmentation and the point cloud was stratified according to the height of the 3D model. Each layer was clustered by two circle iteration and the center points of each cluster could be obtained. The set of center points could be considered as the skeleton points of maize. The quadratic B-spline interpolation curve was used to obtain relatively accurate and smooth linear skeleton of maize plant. Experimental result shows that the 3D maize plant linear skeleton obtained by this method has a good consistency of 3D digitizer skeleton and can meet the requirements of rapid experimental data acquirement.
Keywords: Kinect; three-dimensional point cloud; maizeskeleton; cluster; quadratic B-spline
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基于GIS-T的交通仿真路网构建研究
黄敏1,2,钮中铭1,2,张小兰3,潘嘉杰1,2,张学强1,2
(1. 广东省智能交通系统重点实验室,广州 510006;2. 中山大学工学院,广州 510006;fAzag8879环亚手机|首页主页
3. 广东工贸职业技术学院计算机工程系,广州 510510)
摘要:为了给基于GIS-T的交通仿真平台提供数据支持,构建了基于GIS-T路网数据模型,增强了对交通规则和路面标线描述;在数据模型的基础上,量化了线性参考系统截取量,给出了GIS-T路网单元的构造方法,包括车行道分界线和路面的构造方法;提出有向子路段是保证子路段几何完整性的基本单元,给出路网构建流程;构建了一个典型的十字交叉口,并把构建的路网转换成Paramics和Vissim仿真路网,验证了GIS-T路网在交通仿真中应用的可行性。对比GIS-T路网与仿真路网,得到GIS-T路网在描述交通规则和标线方面的优势。
关键词:交通仿真;交通路网;路网构建;GIS-T;数据模型
中图分类号:U491.5 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 03-0531-06
DOI: 10.16182/j.issn1004731x.joss.201703009
Research of the Construction of GIS-T Traffic Simulation Road Network
Huang Min1,2, Niu Zhongming1,2, Zhang Xiaolan3, Pan Jiajie1,2, Zhang Xueqiang1,2
(1. Guangdong Provincial Key Laboratory of Intelligent Transportation System, Guangzhou, 510006, China; 2. School of Engineering, Sun Yat-sen University, Guangzhou 510006, China; 3. Computer Engineering Department, Guangdong Polytechnic of Industry and Commerce, Guangzhou 510510, China)
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 was created by the editor tool and the road network was transferred into the road network of Paramics and Vissim. Experimental results show that the data mode application is feasible in traffic simulation. In comparison with the other two simulation road network, it implies the advantage of the GIS-T road network data model in presenting road markings and traffic rules.
Keywords: traffic simulation; traffic road network; road network establishment; GIS-T; data model
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基于MVC的敏捷卫星工作模式仿真技术研究
赵琳,杨辉之,郝勇*,刘源,武晓雯
哈尔滨工程大学自动化学院,黑龙江哈尔滨 150001
摘要:为了研究敏捷卫星大角度机动和推扫成像的方法和效能,分析成像工作模式、卫星参数和轨道参数,建立了基于MVC框架的敏捷卫星工作模式仿真系统。该仿真系统以VC2010作为开发环境,应用MVC框架技术构建系统各组成部分之间的信息交互,将仿真输出的卫星轨道数据、姿态数据和成像数据实时送入STK引擎,实现了敏捷卫星姿态切换和推扫成像过程的二维/三维实景可视化显示,对仿真的过程数据进行数据库存储,以供事后分析。经仿真验证,该系统实现了敏捷卫星工作模式方法和效能的交互式分析,可为敏捷卫星的总体设计方案提供支撑。
关键词:敏捷卫星;推扫成像;MVCSTK
中图分类号:U283.1????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0537-09
DOI: 10.16182/j.issn1004731x.joss.201703010
Study on Simulation Technology of Agile Satellite Working Mode Based on MVC
Zhao Lin, Yang Huizhi, Hao Yong*, Liu Yuan, Wu Xiaowen
(Automation Institute of Harbin Engineering University, Harbin 150001, China)
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 attitude switching and push broom imaging, the process data of simulation were stored in database for post analysis. The simulation results show that the simulation system realizes the interactive analysis of the working mode and the effectiveness of agile satellite, and can provide support for the overall design of the agile satellite.
Keywords: agile satellite; push broom imaging; MVC; STK
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基于模糊逻辑的高逼真度运动体感算法研究
王辉1,朱道扬1,平凡2
(1. 中国民航大学 航空工程学院,天津 300300;2. 深圳航空维修工程部,广东 深圳 518128)
摘要:针对经典洗出算法存在虚假暗示和相位延迟导致飞行模拟器运动体感逼真度不够的问题,结合人体前庭感官系统和模糊逻辑控制理论对经典洗出算法的体感误差进行反馈控制,分别对洗出算法的高通加速度通道、倾斜协调通道以及角速度通道进行补偿。对模糊逻辑洗出算法进行仿真建模,通过一组飞行数据对模糊逻辑洗出算法进行仿真实验。仿真结果表明:模糊逻辑控制理论在一定程度上克服了经典洗出算法的虚假暗示和相位延迟误差的缺陷,具有高度的稳定性和可靠性,且能够有效的提升飞行模拟器的动感逼真度。
关键词:模糊控制;洗出算法;飞行模拟器;动感逼真度
中图分类号:TP391????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0546-07
DOI: 10.16182/j.issn1004731x.joss.201703011
Study on Motion Cueing Algorithm of High-Fidelity Based on Fuzzy Logic
Wang Hui1, Zhu Daoyang1, Ping Fan2
(1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China; 2. Shenzhen Airlines Maintenance & Engineering Department, Guangdong, Shenzhen 518128, China)
Abstract: ?Because classical washout algorithm exists false cues and phase retardation, these problems cause the lack of motion proprioceptive fidelity in flight simulators. By combining human vestibular perception system and the theory of fuzzy logic control to regulate the feedback of its sensory error, the translational acceleration channel, the Tilt coordination channel and the angular velocity channel of classical wash out algorithm were compensated, respectively. Simulation and modeling was carried out by fuzzy logic washout algorithm, and simulation verification was conducted on a set of flight data within fuzzy logic washout algorithm. The simulation results show that the theory of fuzzy logic control, to a certain extent, overcomes the defect of false cues and phase retardation error. The proposed method not only has a high stability and reliability, but can effectively improve the dynamic fidelity of flight simulators.
Keywords: fuzzy control; washout algorithm; flight simulator; dynamic fidelity
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鲁云军,蔡福利,周明
(国防信息学院,湖北 武汉 430010)
摘要:针对作战指挥模拟中通信网系建模的实际需求,运用指数法建模的基本思想,提出了一种面向指挥对抗模拟训练的通信网系背景业务流量建模方法,建立了背景业务流量生成模型,并进行了仿真验证。结果表明,该方法能够快速并有效地生成背景业务流量,较好地满足了模拟训练的需求。
关键词:指挥对抗模拟训练;通信网系;背景业务流量;建模方法
中图分类号:TP391 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 03-0552-07
DOI: 10.16182/j.issn1004731x.joss.201703012
Modeling Method of Communication Networks Background Traffic for Counter-command Simulation Training
Lu Yunjun, Cai Fuli, Zhou Ming
(Academy of National Defense Information, Wuhan 430010, China)
Abstract:For the actual need of the communication networks modeling in combat command simulation, a modeling method of background traffic was proposed which was oriented towards counter-command simulation training under the guidance of basic idea of index modeling. The background traffic model was designed and the simulation verification was carried on. The results indicate that such method is able to generate background traffic rapidly and efficiently, meeting the requirement of simulation training.
Keywords: combat command; communication networks; background traffic; Modeling Method
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柴油机掺水燃烧性能评估及决策仿真平台研究
祖象欢,杨传雷,王银燕
(哈尔滨工程大学动力与能源工程学院,哈尔滨 150001)
摘要:针对柴油机掺水燃烧中不同掺水比例的性能评估及最优决策问题,基于灰色决策和灰色关联分析建立了柴油机最佳掺水比例决策及评估模型,为最佳掺水比例的选择提供了理论支持并通过MATLAB语言和(图形用户界面)GUI开发实现了具有关联分析、最优决策等功能的柴油机掺水燃烧性能评估及决策仿真平台。通过仿真实例表明,仿真平台能够有效地实现柴油机最佳掺水比例决策以及性能评估,具有良好的可行性和有效性。
关键词:柴油机;掺水燃烧;灰色决策;图形用户界面(GUI);仿真平台
中图分类号:TP391????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0559-06
DOI: 10.16182/j.issn1004731x.joss.201703013
Research on Assessment and Decision Making Simulation Platform for Performance of Diesel Engine Mixed with Water
Zu Xianghuan, Yang Chuanlei, Wang Yinyan
(College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China)
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 that, the platform can effectively realize decision-making for best water blending proportion and performance evaluation of diesel engine, and owns good feasibility and effectiveness.
Keywords: diesel engine; water blending combustion; grey decision making; GUI; simulation platform
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城市群复合交通网络可靠性研究
李成兵,郝羽成,王文颖
(内蒙古大学交通学院,内蒙古呼和浩特 010070)
摘要:为提高城市群交通网络抵抗突发灾害的能力,以复合这样一种全新的视角,对城市群交通网络可靠性进行实证研究。构建加权的城市群单种运输方式的交通网络模型,通过叠加的方式构建城市群复合交通网络模型以最大连通子图的相对大小、网络局部效率变化率、网络全局效率变化率定量描述城市群交通网络可靠性的变化。以呼包鄂城市群为例进行实证研究,对加权的道路交通网络、道路-轨道复合交通网络的节点与边进行随机攻击与蓄意攻击,对比分析其可靠性测度指标的变化,识别网络的关键枢纽与线路
关键词:城市群;交通网络;复杂网络;可靠性;复合交通网络
中图分类号:U491????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0565-08
DOI: 10.16182/j.issn1004731x.joss.201703014
Research on City Agglomeration Compound Traffic Reliability
Li Chengbing, Hao Yucheng, Wang Wenying
(School of Transportation, Inner Mongolia University, Hohhot 010070, China)
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 change of reliability index, and distinguishing the key hubs and routes.
Keywords: city agglomeration; traffic network; complex network; reliability; compound traffic network
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磁悬浮系统仿真及混沌特性研究
江东,孔德善,刘绪坤,杨嘉祥,王德玉
(哈尔滨理工大学电气与电子工程学院,黑龙江 哈尔滨 150080)
摘要:建立了磁悬浮系统的物理模型、数学模型和仿真模型。实测基础上推导了磁悬浮球所受磁力与电磁铁电流及磁悬浮球与螺线管距离的变化关系,得出了磁悬浮球的动力学方程。设计了磁悬浮系统的Simulink仿真模型,对无振动、外加振动及混沌状态进行了仿真。研究了稳定、准周期和混沌状态的相轨迹。实测了稳定波形、外加振动和混沌波形。实验表明,磁悬浮系统稳定,混沌状态的运动规律与仿真结果相同。利用建立的模型了解系统参数对磁悬浮系统稳定性影响,进而获得系统最佳参数,了解磁悬浮球的混沌特性及进一步完成系统的数据处理。
关键词:磁悬浮;初始状态;动力学方程;仿真模型
中图分类号:TM 571.6?????? 文献标识码:A??????? 文章编号:1004-731X (2017) 03-0572-09
DOI: 10.16182/j.issn1004731x.joss.201703015
Magnetic Levitation System Simulating and Its Chaos Research
Jiang Dong, Kong Deshan, Liu Xukun, Yang Jiaxiang, Wang Deyu
(College of Electrical & Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China)
Abstract: The physical model, mathematical model and simulation model of the magnetic levitation system were set up. The function among magnetic force, electromagnet current and distance was deduced after the measuring. The dynamic equation of magnetic levitation ball was derived. The simulation model of the magnetic levitation ball system was set up. The simulation experiments for no vibration and external vibration and chaos state of the system were conducted. The phase trajectories of stable, quasi-periodic and chaotic states were researched. The waveforms of no vibration and external vibration and chaos state were measured. The tests show that the measured waveforms are same as simulation waveforms. Using the established model, the stability of the magnetic levitation ball system impacted by various system parameters and acquire optimal parameters of the system could be understood. The chaotic characteristics of the magnetic levitation system could be understood further completing the data processing of the system.
Keywords: magnetic levitation; initial state; dynamic equation; simulation model
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城轨列车多目标优化控制算法研究与仿真
孟建军1,2,3,裴明高1,武福1,韦腾舟1,郝帅1
(1. 兰州交通大学机电工程学院,兰州 730070; 2. 兰州交通大学机电技术研究所,兰州 730070;3. 甘肃省物流及运输装备信息化工程技术研究中心,兰州 730070)
摘要:针对城轨列车运行多目标的特点,以能耗、准时性、精确停车以及舒适度为指标建立城轨列车运行多目标模型,利用遗传算法对其进行优化,根据列车牵引计算以及计算机仿真得到列车运行目标曲线。将模糊控制和PID控制算法应用到城轨列车运行系统中,建立自适应模糊PID控制器和PID控制器,对目标曲线进行跟踪。仿真结果表明自适应模糊PID控制与PID控制相比,其能更好的使列车跟随目标曲线,从而保证列车安全、平稳、准时地运行,确保列车进站停车的精确性。
关键词:遗传算法;多目标;牵引计算;目标曲线;模糊PID
中图分类号:U239.5????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0581-09
DOI: 10.16182/j.issn1004731x.joss.201703016
Research and Simulation on Control Algorithm for Multi-objective Optimization of Urban Rail Train
Meng Jianjun1,2,3, Pei Minggao1, Wu Fu1, Wei Tengzhou1, Hao Shuai1
(1. School of Mechatronic Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; 2. Mechatronics T & R Institute, Lanzhou Jiaotong University, Lanzhou 730070, China; 3. Engineering Technology Center for Informatization of Logistics & Transport Equipment, Lanzhou 730070, China)
Abstract: According to the characteristics of urban rail train running multiple objective, the multi-objective operation model for urban rail train was established with the energy consumption, punctuality, accurate parking and comfort level as the optimization indexes. Genetic algorithms was used to optimize running multi-objective model of urban rail train, and according to train traction calculation and computer simulation, the train running target curve was obtained. The fuzzy control and PID control algorithm were applied to urban rail train system to establish adaptive fuzzy PID controller and PID control in order to track the target curve. Simulation results show that adaptive fuzzy PID control compared with PID control, the former can better make the train follow the target carve operation, so as to ensure train safety, smooth, punctual operation, at the same time also to ensure the accuracy of a train stopping.
Keywords: genetic algorithms; multi-target; traction calculation; target curve; fuzzy PID
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Filtering based maximum likelihood stochastic gradient prediction on wind power curtailment
Wang Ziyun, Ji Zhicheng
(Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), College of the Internet of Things, Jiangnan University, Wuxi 214122, China)
Abstract: The parameter estimation problem of Hammerstein finite impulse response models and its application on the wind curtailment prediction field were considered. By adopting the maximum likelihood principle, the maximum likelihood estimate was obtained by minimizing the likelihood function. To reduce the impact of the unknown noise term, the maximum likelihood idea and the filtering theory were combined by changing the coupled nonlinear model into a parameter-independent model and to derive a filtering based maximum likelihood stochastic gradient algorithm for the Hammerstein system modeling on wind power curtailment prediction. The given simulation validates that the proposed algorithm can identify the wind power characteristic curve accurately and contributes to calculate the wind power curtailment prediction that shows its good practicability.
Keywords: system identification; stochastic gradient; filtering theory; maximum likelihood; wind power curtailment prediction
基于滤波极大似然随机梯度的弃风电量预测
王子赟,纪志成
(江南大学,物联网工程学院,轻工过程先进控制教育部重点实验室,无锡 214122)
摘要:研究了一类Hammerstein有限脉冲响应模型的建模方法,并用于风电场弃风电量预测领域。采用极大似然估计律对似然方程进行最小化,同时为了减少有色噪声对建模过程的干扰,结合极大似然估计方法和滤波过程,将原本耦合的非线性模型转变为独立参数的辨识模型,进而推导了一类基于滤波的极大似然随机梯度辨识算法,并将该方法用于风电场弃风电量的预测领域。仿真结果表明提出的算法可以精确的辨识实际风电场的风电功率特性曲线,并能很好的预测风电场的弃风电量情况,具有很强的实用性。
关键词:系统建模;随机梯度;滤波算法;极大似然估计;风电弃风电量预测
中图分类号:TP13????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0589-06
DOI: 10.16182/j.issn1004731x.joss.201703017
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服务型制造项目治理中利益相关者演化博弈研究
彭本红1,2,谷晓芬1,3,鲁倩1
(1.南京信息工程大学经济管理学院,南京 210044;2.上海电子废弃物资源化产学研合作开发中心,上海 201209;3.中国制造业发展研究院,南京 210044)
摘要:核心制造商、顾客和服务商是服务型制造项目实施过程中博弈参与主体。分析了三方演化稳定情况,构建了演化博弈模型,利用系统动力学仿真研究三方之间策略选择的动态博弈过程。研究结果表明:核心制造商、顾客和服务商最终会达到(监督,参与,努力)稳定均衡状态;顾客在选择策略时较重视参与项目的保障因素;服务商单方面的努力不一定会增加顾客参与的期望收益;核心制造商监管服务商并处以适当罚金、不监管服务商给予顾客适当的损害裁定都可提高二者的决策效率。
关键词:服务型制造;演化博弈;系统动力学;仿真分析
中图分类号:TP391.9????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0595-15
DOI: 10.16182/j.issn1004731x.joss.201703018
Analysis of Evolutionary Game of Stakeholders in Service-oriented Manufacturing Project Governance
Peng Benhong1,2, Gu Xiaofen1,3, Lu Qian1
(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;3. China Institute of Manufacturing Development, Nanjing 210044, China)
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 proper fines for service provider’s slacking under the circumstance of supervising, and appropriate damage ruling for customer without monitoring, both of which can improve their decision-making efficiency.
Keywords: service-oriented manufacturing; evolutionary game; system dynamics; simulation analyses
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基于SOC的锂动力电池组双向主动均衡控制
宋绍剑,王志浩,林小峰
(广西大学电气工程学院,广西 南宁 530004)
摘要:电动汽车锂动力电池组中单体电池的不一致性会导致电池组的容量和使用寿命的衰减,严重影响了电动汽车的性能。为此设计了一种以双向Buck-Boost拓扑为主电路的主动均衡控制系统,采用极限学习机(Extreme Learning Machine, ELM) 预测电池的荷电状态(State of Charge, SOC),并以SOC为主要的均衡判据,提出了一种新型的主动均衡控制策略实现了锂电池组在充电过程和静置状态下的主动均衡。实验结果表明:所提出的双向主动均衡控制方法可以准确高效地实现均衡目标,且能量损耗较少。
关键词:锂电池组;电池荷电状态;极限学习机;均衡控制策略
中图分类号:TM912 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 03-0609-09
DOI: 10.16182/j.issn1004731x.joss.201703019
SOC-Based Bi-Directional Active Equalization Control for Lithium-Ion Power Battery
Song Shaojian, Wang Zhihao, Lin Xiaofeng
(School of Electrical Engineering, Guangxi University, Nanning 530004, China)
Abstract:The inconsistency of cell in the electric vehicles’ lithium-ion power battery pack leads to decrease the battery pack’s capacity and lifetime, and even seriously affect the electric vehicles’ performance. An active equalization system was designed based on the bi-directional Buck-Boost topology. A novel active equalization control strategy was proposed to balance the lithium-ion battery pack in the process of charging and static state, which extreme learning machine (ELM) was used to predict the state of charge(SOC), and SOC was employed as the main balance criterion. The simulation results show that the proposed bi-directional active equalization method can realize the equalization target accurately and efficiently with less energy loss.
Keywords: Lithium-Ion battery string; SOC; ELM; equalization control strategy
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气液同轴式喷嘴声学特性数值研究
安红辉1,聂万胜2
(1.装备学院研究生院,北京 101416;2. 装备学院航天装备系,北京 101416)
摘要:采用线性声学理论,将液体火箭发动机气液同轴式喷嘴分别简化为1/4波长谐振管和1/2一波长谐振管研究得出常温条件下喷嘴长度和入口射流条件对燃烧室一阶切向声学模态的抑制规律。结果表明:当喷嘴一阶纵向模态频率与需要抑制的燃烧室声学模态频率相等时,对于喷嘴入口射流处于壅塞的状态1/4纵向模态波长长度喷嘴的抑制能力最大;反之,1/2纵向模态波长长度喷嘴的抑制能力最大。两种喷嘴的抑制能力均随喷嘴直径增加而增大。研究结果可为喷嘴长度和入口射流条件优化设计、燃烧室声学振荡抑制提供参考。
关键词:气液同轴喷嘴;声谐振管;声抑制系数;数值计算
中图分类号:V43????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0618-06
DOI: 10.16182/j.issn1004731x.joss.201703020
Numerical Study of Characteristics of Gas Liquid Coaxial Injector as Acoustic Resonator
An Honghui1, Nie Wansheng2
(1. Department of Postgraduate, Equipment Academy, Beijing 101416, China; 2. Dept. Space Equipment, Academy of Equipment, Beijing 101416, China)
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 the first longitudinal mode traveling in the injector with the acoustic frequency intended for damping, on the contrary, the length of the injector is near half of a full wavelength of the first longitudinal mode traveling in the injector. The research results can provide reference for the optimum design of the length and inlet jet of the injectors, and acoustic damping of the combustion chamber.
Keywords: gas liquid coaxial injector; acoustic resonance tube; acoustic damping coefficient; numerical calculation
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基于链路可用时间的认知无线网络拓扑控制算法
杨怀德
(东莞职业技术学院计算机工程系,广东 东莞 523808)
摘要:针对认知无线网络的链路可用性受节点移动、主用户干扰、节点剩余能量的影响,并引起网络拓扑结构频繁变化的问题,提出了一种基于链路可用时间预测的网络拓扑控制算法。算法综合考虑上述影响因素并运用概率原理预测链路可用时间,构建具有最长可用时间链路的稳定拓扑图。仿真实验表明,算法能够充分利用移动性低、受主用户干扰少、剩余能量大的链路,简化了网络拓扑,有效减少链路断裂导致的拓扑重构和路由开销,提升了网络的性能。
关键词:拓扑控制;认知无线网络;链路可用时间;预测
中图分类号:TN929.52????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0624-06
DOI: 10.16182/j.issn1004731x.joss.201703021
Topology Control Algorithm Based on Link Available Time for Cognitive Radio Network
Yang Huaide
(Computer Engineering, Dongguan Polytechnic, Dongguan 523808, China)
Abstract: The topology changes frequently in cognitive wireless network as nodes’ mobility, the main user interference, residual energy of nodes which cause link unavailable. A new topology control algorithm based on predict of link available time was proposed to resolve the problem. The algorithm forecasted link available time using probabilistic principles, and built a stable topology with longest available time links. Simulation results show that the new algorithm can take advantage of links with low mobility nodes, less interference caused by the primary user, and large remaining energy, simplify the network topology, effectively reduce the cost of the link topology reconfiguration and routing caused by link fault, and improve network performance.
Keywords: topology control; cognitive radio network; link available time; prediction
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改进和声搜索算法在硫化车间调度中的应用
吴龙成,黄松,王艳,纪志成
(江南大学物联网技术应用教育部工程研究中心,无锡 214122)
摘要:针对硫化车间生产调度环节分配不合理导致的机台利用率不高和生产效率低的问题,提出了一个改进的离散和声搜索(Improved Harmony Search,IHS)算法来优化硫化车间调度的最大完工时间。该算法包含个体记忆考虑过程、扰动搜索过程和竞争淘汰机制。在竞争淘汰机制中,用新解替换和声记忆库中对应的个体或最差解,更新和声记忆库,加速优胜劣汰的进程,使记忆库中每个个体更快速地向最优解方向靠近。通过MATLAB实验仿真,结果表明,IHS算法获得的结果要优于HS和PSO算法,在解决硫化车间调度问题有良好的性能,验证了该算法的有效性和可行性。
关键词:离散优化算法;和声搜索算法;和声记忆库;硫化车间调度
中图分类号:TP391.9????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0630-09
DOI: 10.16182/j.issn1004731x.joss.201703022
Improved Harmony Search Algorithm in Application of Vulcanization Workshop Scheduling
Wu Longcheng, Huang Song, Wang Yan, Ji Zhicheng
(Engineering Research Center of IoT Technology Applications Ministry of Education, Jiangnan University, Wuxi 214122, China)
Abstract: For solving the problem of low productivity and low machine utilization caused by unreasonable assignment in tire vulcanizing process, an improved Discrete Harmony Search (Improved Harmony Search, IHS) Algorithm was proposed to optimize the maximum completion time of vulcanizing workshop scheduling. This algorithm has three processes including individual memory consideration process, disturbance search process and competitive selection mechanism. In the competitive selection mechanism, the corresponding individual in harmony memory or worst solution was replaced with new solution and harmony memory was updated. That strategy made each individual in memory more quickly fly to the optimal solution. The algorithm was simulated on MATLAB. The results show that IHS is superior to HS and PSO algorithm. This algorithm can efficiently solve the vulcanizing shop scheduling problem, and the analysis demonstrates the validity and feasibility of the algorithm.
Keywords: Discrete optimization algorithm; Harmony search algorithm; Harmony memory; Vulcanization workshop scheduling
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引气管路气动损失补偿算法的研究
戴海发1,陶建武1,杨越明2
(1. 空军航空大学飞行器控制系,吉林 长春 130022;2. 空军航空大学航空理论系,吉林 长春 130022)
摘要:针对基于矢量传感器的嵌入式大气数据传感(Flush Air-Data Sensing,FADS)系统速度信号失真问题,提出了一种对引气管路的速度误差和延迟进行补偿的算法。介绍了运用基于矢量传感器的嵌入式大气传感系统测量气流速度的原理,通过差分运算将系统的气动衰减模型降阶成一个简单的二阶状态变量模型,并且通过全模型和降阶模型的频率响应对比实验,证明了降阶模型保留了全模型的大部分动态特性。运用了最小方差估计和卡尔曼滤波理论,针对状态变量模型得到了补偿气动损失的算法。该算法包括飞行后的平滑算法和实时滤波算法。仿真和风洞试验比较和分析了两种算法的性能。
关键词:嵌入式大气数据传感系统;速度失真;引气管路;补偿算法
中图分类号:V211.1 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 03-0639-08
DOI: 10.16182/j.issn1004731x.joss.201703023
Research on Compensation Algorithms for Pneumatic Distortion of Pneumatic Tube
Dai Haifa1, Tao Jianwu1, Yang Yueming2
(1. Department of Flight Vehicle Control, Aviation University of Air Force, Changchun 130022, China; 2. Department of Aviation Theory, Aviation University of Air Force, Changchun 130022, China)
Abstract: Based on the problem for velocity attenuation of Flush Air-Data Sensing (FADS) system, a compensation algorithm was developed to compensate for the pneumatic distortion. The principle of velocity measurement by Flush Air Data Sensing (FADS) system based on vector sensor was introduced, the attenuation model was reduced to a second order, state variable model, the comparison of frequency response with both model verifying that the reduced model remains the most dynamic characteristics of the original one. Then, based on the state variable model, the algorithm to compensate for distortion was developed by utilizing minimum estimation theory and Kalman filtering algorithm. The algorithm contains post-flight and real-time algorithms. Both algorithms were verified by simulated and wind tunnel experiment.
Keywords:flush air-data sensing (FADS) system; velocity distortion; pneumatic tube; compensate algorithm
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基于改进ELM的永磁同步电机故障诊断算法
汪鑫,王艳,纪志成
(江南大学教育部物联网技术应用工程中心,江苏 无锡 214122)
摘要:针对永磁同步电机(Permanent Magnet Synchronous Motor,PMSM)常见的缺相及匝间短路故障,分析了PMSM的基本模型及相应的故障模型,提出一种基于自适应二阶粒子群算法(self-adaptive second-order particle swarm optimizationSaSECPSO)的改进极限学习机(improved extreme learning machineIELM)算法。该SaSECPSO算法采用自适应惯性权重策略及线性变化认知系数方法,提高二阶粒子群算法 (second-order particle swarm optimizationSECPSO)的收敛速度和收敛精度。运用SaSECPSO算法同时优化ELM的输入权值和隐含层阈值参数,提高ELM算法在PMSM故障中的识别率。以电机转速和ABC相电流作为多源样本,实验证明IELM算法相对于其他算法具有较高的诊断精度。
关键词:永磁同步电机;故障模型;改进极限学习机;故障诊断
中图分类号:TP391.9 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 03-0646-09
DOI: 10.16182/j.issn1004731x.joss.201703024
Fault Diagnosis Algorithm of Permanent Magnet Synchronous Motor Based on Improved ELM
Wang Xin, Wang Yan, Ji Zhicheng
(Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Jiangnan University, Wuxi 214122, China)
Abstract: In order to address the common problems of lacking of phase and interturn short circuit fault, after analyzing the basic and corresponding fault model of permanent magnet synchronous motor(PMSM), an improved extreme learning machine (IELM) algorithm was proposed based on self-adaptive second-order particle swarm optimization (SaSECPSO). SaSECPSO employed adaptive inertia weight and cognitive coefficient with linear variation to improve the convergence rate and accuracy of second-order particle swarm optimization (SECPSO). In addition, the recognition rate of extreme learning machine (ELM) when solving the fault model of PMSM could be significantly improved by using SaSECPSO to simultaneously optimize input weights and hidden layer threshold. The extensive experiment was carried out by taking motor speed and phase current as multi-source sample, and the results validate that IELM has a higher diagnostic accuracy than other algorithms.
Keywords: permanent magnet synchronous motor; fault model; Improved Extreme Learning Machine; fault diagnosis
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考虑串件拼修的k/N系统批量备件配置方法
王永攀1,2,常春贺2,杨江平2
(1. 93502部队,内蒙古呼和浩特 0100512. 空军预警学院,湖北武汉 430019)
摘要:针对k/N系统批量备件的配置问题,提出一种视情维修条件下考虑串件拼修的备件优化配置方法。建立了基于串拼修复率和SRU更换率的系统级备件满足率模型,给出了串拼修复率和SRU更换率的约束条件。以备件配置费用最小为目标、以系统备件满足率为约束条件建立了系统备件的优化配置模型,设计了一种基于边际效益分析法的模型求解算法。以某型大型相控阵天线阵面备件配置为例,利用定量和比较的仿真分析方法对提出的模型进行了验证,得到了备件的优化配置结果。结果表明:提出的模型真实有效、可行性强,为进一步研究k/N系统批量备件的配置问题提供了理论支持。
关键词:k/N系统;批量备件;串件拼修;备件配置;备件满足率
中图分类号:N94/N95????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0654-08
DOI: 10.16182/j.issn1004731x.joss.201703025
Optimal Configuration Method of Block Spare Parts for k/N Systems Considering Cannibalization
Wang Yongpan1,2, Chang Chunhe2, Yang Jiangping2
(1. Unit 93502 of PLA, Hohhot 010051, China; 2. Air Force Early Warning Academy, Wuhan 430019, China)
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. Simulations and analysis were conducted by taking the spare parts configuration problem of one large-scale phased array antenna as an instance, and the optimal results were achieved through the simulation methods of quantitative and comparative analysis. The results show that the presented model is of high validity and feasibility, and can provide theoretical support for the deeply research on the block spare parts configuration problems for k/N systems.
Keywords: k/N systems; block spare parts; spare parts configuration; cannibalization; spare parts fill rate
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多模式资源受限项目调度中的干扰管理仿真
刘盛铭,冯书兴
(中国人民解放军装备学院,北京 101416)
摘要:针对多模式资源受限项目调度中的干扰管理仿真研究较少这一现状,分析了MS Project项目管理工具的功能弱项,借助CPLEX Studio IDE的优化计算功能,设计了较为合理的干扰管理仿真流程,实现了多模式资源受限项目调度中的干扰管理仿真。分析了单一时刻单一干扰和多个时刻多个干扰的情况,并基于项目调度问题库的实例进行仿真,结果表明,资源冲突对项目调度的工期偏移量影响作用较大,设计的仿真流程具有一定的有效性,可为武器装备项目的管理人员进行计划、决策等工作提供参考和借鉴。
关键词:多模式资源受限项目调度;干扰管理;项目调度问题库;甘特图
中图分类号:C93??????? 文献标识码:A???????? 文章编号:1004-731X (2017) 03-0662-07
DOI: 10.16182/j.issn1004731x.joss.201703026
Disruption Management Simulation for Multi-mode Resource-constrained Project Scheduling Problem
Liu Shengming, Feng Shuxing
(Equipment Academy of PLA, Beijing 101416, China)
Abstract: As the disruption management simulation for multi-mode resource-constrained project scheduling problem received little concern, a pretty reasonable disruption management simulation process was designed. After analyzing the functional weakness of MS Project, disruption management simulation for multi-mode resource-constrained project scheduling problem was implemented by optimized computation of CPLEX Studio IDE. According to examples from Project Scheduling Problem Library, the cases of a single disruption in a single moment and multiple disruptions in multiple moments were simulated as well as analyzed. The results show that the resource conflicts play an important role on time limit of whole project and simulation process designed is effective to some extent. The designed simulation process can provide reference for the work of management personnel, such as planning, decision-making and so on, in a project of armament.
Keywords: multi-mode resource-constrained project scheduling problem; disruption management; project scheduling problem library; Gantt chart
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吊放声纳搜潜参数正交试验设计与优化
罗木生1,王宗杰1,葛文才2
(1. 海军航空工程学院,山东 烟台 264001;2. 中国人民解放军91880部队,山东 胶州 266300)
摘要:针对反潜直升机使用吊放声纳搜潜的参数优化问题,为克服多参数逐个分析优化方法的局限性,在分析吊放声纳搜索过程的基础上,采用正交试验设计的方法,围绕搜索概率、发现潜艇的平均花费时间2个指标,确定了7个影响吊放声纳搜潜效能的因素及相应的因素水平,构建了L18(61×36)混合水平正交试验方案,实现了7个参数同时变化下的仿真试验设计。采用蒙特卡洛法建立了仿真模型,对所有方案进行了仿真计算,结果显示:对不同的搜潜指标,因素的影响程度不同,且影响趋势也不尽相同;兵力数量2~3架、总搜索时间不超过搜索6个探测点所需时间为佳。
关键词:吊放声纳;正交设计;搜潜;参数优化;搜索概率
中图分类号:E925????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0669-07
DOI: 10.16182/j.issn1004731x.joss.201703027
Optimization on Search Submarine Parameters of Dipping Sonar Using Orthogonal Design Method
Luo Musheng1, Wang Zongjie1, Ge Wencai2
(1. Naval Aeronautical and Astronautical University, Yantai 264001, China; 2. Unit 91880, PLA, Jiaozhou 266300, China)
Abstract: To solve the limitation of multi-parameter analysis using one by one optimization method, search submarine parameters optimization of antisubmarine helicopter using dipping sonar was studied. After analyzing the submarine-search process of dipping sonar, search probability and average time of search cost were made as the indexes. The seven primary factors which influenced submarine-search efficiency were analyzed and corresponding factorial levels were selected. Based on orthogonal design method, the orthogonal test schemes of L18(61×36) were built, which could simulate seven parameters when their value changed simultaneously. Monte Carlo simulation model was built and all schemes were simulated. The results show that the influence degree and influence trend of parameters are not the same to different search index; the number of helicopter should be 2 or 3; total search time should not excess the time cost to search 6 detecting points.
Keywords: dipping sonar; orthogonal design; submarine search; parameters optimization; search probability
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输入有界的电液位置伺服系统的自适应控制
石建飞,衣淑娟
(黑龙江八一农垦大学信息技术学院,黑龙江 大庆 163319)
摘要:综合考虑参数不确定性、外部干扰和输入饱和非线性对电液位置伺服系统控制性能的影响,提出一种基于人工神经网络的自适应状态反馈轨迹跟踪控制算法。该控制算法引入人工神经网络对系统输入饱和非线性进行在线拟合,设计基于有界双曲正切函数的状态反馈控制器,实现电液位置伺服系统的高精度轨迹跟踪。该方法不需要对系统非线性部分进行线性化,而且对线性部分的控制和参数的在线估计不相关,因此控制器具有较强的鲁棒性和工程实用性。通过构造合适的Lyapunov函数,证明了闭环系统具有全局渐近稳定性,仿真结果验证了所设计控制器的可行性和有效性。
关键词:电液位置伺服系统;自适应状态反馈控制;饱和特性;神经网络拟合
中图分类号:TP273????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0676-07
DOI: 10.16182/j.issn1004731x.joss.201703028
Adaptive Control for Hydraulic Servo Position System with Bounded Input
Shi Jianfei, Yi Shujuan
(College of Information Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China)
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.
Keywords: hydraulic servo position system; adaptive state feedback control; bounded input; neural network
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基于三代压水堆的中国核燃料循环模式仿真研究
刘志宾1,2,马进1,王兵树1,段新会1
(1. 华北电力大学自动化系,河北 保定 071003;2. 北京广利核系统工程有限公司,北京 100094)
摘要:根据国务院出台的《核电安全规划(2011–2020年)》和《核电中长期发展规划(2011–2020年)》和中国工程物理研究院的《中国能源中长期(2030、2050)发展战略研究》及“十三五”规划,以目前主要已运M310堆型和三代核电华龙一号AP1000CAP1400堆型为主,在MATLAB仿真环境下采用一次通过模式分析2050年前我国核燃料循环现状和未来核燃料循环需求,定量的计算仿真出压水堆核电站所需的铀资源、分离功、乏燃料、Pu和次要锕系元素的产生量,计算结果可作为我国核燃料发展战略的重要依据,加快建立闭式核燃料循环模式。
关键词:核燃料循环;压水堆;一次通过;三代压水堆
中图分类号:TP391.9 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 03-0683-08
DOI: 10.16182/j.issn1004731x.joss.201703029
Simulation Study of Nuclear Fuel Cycle Mode Based on Third Generation PWR in China
Liu Zhibin1,2, Ma Jin1, Wang Bingshu1, Duan Xinhui1
(1. Department of Automation North China Electric Power University, Baoding 071003, China; 2. China Techenergy Co., LTD, Beijing 100094, China)
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 strategy”of 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 nuclear reactors were calculated. Simulation result can be made as a reference for China fuel cycle development strategy, which speeds up to establish closed fuel cycle way.
Keywords:nuclear fuel cycle; PWR; once-through fuel cycle; third generation reactor
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光伏发电微型逆变器建模与控制方法研究
刘卫亮1,李春来2,刘长良1,王印松1,林永君1,马良玉1,陈文颖1
(1. 华北电力大学新能源电力系统国家重点实验室,保定 071003;2. 青海省光伏发电并网技术重点实验室,西宁 810008)
摘要:光伏发电微型逆变器能够解决集中式逆变器可靠性差、效率低的问题,有着良好的应用前景。针对一种采取反激式拓扑结构的光伏发电微型逆变器,建立了其小信号分析模型。考虑到将其应用于低压配电网时需具备防逆流功能,分别设计了最大功率跟踪模式与负载电流跟踪模式下的控制方法,并利用遗传算法进行了控制器参数优化。仿真与试验表明,所提出的控制方法可使微型逆变器稳定地工作于最大功率跟踪模式与负载电流跟踪模式,并能够降低输出电流的谐波含量。
关键词:光伏发电;防逆流;微型逆变器;最大功率跟踪
中图分类号:TM85????? 文献标识码:A?????? 文章编号:1004-731X (2017) 03-0690-08
DOI: 10.16182/j.issn1004731x.joss.201703030
Modeling and Control Method of Photovoltaic Micro-Inverter
Liu Weiliang1, Li Chunlai2, Liu Changliang1, Wang Yinsong1, Lin Yongjun1, Ma Liangyu1, Chen Wenying1
(1. State key laboratory of Alternate Electrical Power System with Renewable Energy Sources, Baoding 071003, China2. Key Laboratory of Grid-Connected Photovoltaic Technology of Qinghai Province, Xining 810008, China )
Abstract: Photovoltaic micro-inverter can solve the poor reliability and low efficiency problem of centralized inverter, therefore it has a good application prospect. Small signal analysis model was established for the photovoltaic micro-inverter with flyback topology structure. Considering function of reverse current prevention being required when it was applied to the low voltage distribution network, control methods were disigned respectively for load current tracking mode and maximum power point tracking mode, and the controller parameters were optimized using genetic algorithm. Experimental and simulation results show that the micro-inverter can steadily work in two different modes, and reduce the harmonic content of output current.
Keywords: photovoltaic power generation; reverse current prevention; micro-inverter; maximum power point tracking (MPPT)
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