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基于模糊自适应PID的伺服系统控制

系统仿真学报 2009年第21期21卷 6794-6797页

作者：吕博吴云洁北京航空航天大学自动化科学与电气工程学院北京100191

以飞行仿真转台伺服系统为研究对象,设计了一种带比例因子的模糊自适应PID控制器,通过误差和误差变化率在线模糊推理并调整比例因子和PID控制器的修正值。通过引入积分分离控制方法,在保证系统动态性能的前提下,一定程度上克服了模糊控... 详细信息

以飞行仿真转台伺服系统为研究对象,设计了一种带比例因子的模糊自适应PID控制器,通过误差和误差变化率在线模糊推理并调整比例因子和PID控制器的修正值。通过引入积分分离控制方法,在保证系统动态性能的前提下,一定程度上克服了模糊控制方法无法消除静差的缺点,也满足转台控制的实时性要求。仿真实验结果表明,该方法与传统PID控制相比,能够有效提高转台伺服系统的动态性能和鲁棒稳定性。

关键词：飞行仿真转台传统PID控制模糊自适应PID控制比例因子积分分离控制

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Cooperative route plan of initial stage for multiple missiles formation

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Cooperative route plan of initial stage for multiple missile...

2011 Chinese Control and Decision Conference（CCDC）

作者： J.Sun is with the automation science and electrical engineering school,beijing university of aeronautics and astronautics,beijing,100083 china.Y.M.Bao is with the automation science and electrical engineering school,beijing university of aeronautics and astronautics,beijing,100083 china.S.T.Wu is with the automation science and electrical engineering school,beijing university of aeronautics and astronautics,beijing,100083 china.

Cooperative task implement of multiple aircraft is a basic character of modern aircraft *** highly makes requirement of task assignment and route *** assignment is precondition of route plan,which can alleviate pressure of route plan in the sequel,so it can be seen as initial extension of route *** solve problem of task assignment and route plan of multiple missiles between land launch and mid-guidance switch,the integrated method of generic algorithm （GA） and dynamic program （DP） is *** software of route plan for multiple missiles of initial stage is *** of the software shows engineering effectiveness of this integrated method.

关键词： Route plan Generic Algorithm Dynamic Plan Task assignment

Study on Amendment of Orifice Equation for Small Spool Displacement and Application

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Study on Amendment of Orifice Equation for Small Spool Displ...

2011 International Conference on Fluid Power and Mechatronics

作者： Yu Juntao Jiao Zongxia Wu Shuai Zhang Rui school of automation science and electrical engineering beijing university of aeronautics and astronautics beijing 100191 china

The accurate orifice equation was *** slide-valve geometric parameter（gap and fillet）was considered, the influence of it on orifice flow was obtained from flow area equivalent and flow average velocity by methods of theoretical analysis and CFD（computational fluid dynamics）numerical *** accurate orifice equation was *** accurate valve flow equation considering gap and fillet was acquired by the analysis and calculation of the flow through four valve orifices according to the amended orifice *** correlative coefficient of servo valve flow was achieved by linearized analysis for valve flow *** curve of flow characteristics against spool displacement considering gap and fillet was *** provided theoretical basis for the design and simulation of Piezoelectric Direct-Drive Valve（PZT DDV）in practical application.

关键词： Orifice Equation Gap and Fillet Flow Area Equivalent Average Velocity CFD Microcosmic PZT DDV Flow Characteristics

Scheme Analysis of Electro-Hydrostatic Actuator with Control Valve

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Scheme Analysis of Electro-Hydrostatic Actuator with Control...

第五届流体传动与控制国际会议

作者： Qi Haitao Fu Yongling Lang yan school of automation science and electrical engineering beijing university of aeronautics and astronautics beijing 100083 china

＜正＞Aiming at the problems of the typical EHA system’s low response,in order to give attention to the efficiency and response,firstly,represents the system composition and operating principle of typical EHA, then,introduces control valve into EHA systems,puts forward three schemes of EHA with control *** is EHA with electro-hydraulic servo valve,second is EHA with direct drive valve,and third is EHA with total pressure control *** on the detailed analyses of the system composition and operating principle of these three schemes,use AMESim to simulate each scheme,and compare *** the simulation results,we can conclude that EHA with control valve will greatly improve the system response. As three transitional schemes,they have practical guidance significance to the research and development of present airborne electro-hydrostatic actuation system.

关键词： Power-by-Wire(PBW) Electro-Hydrostatic Actuator Electro-Hydraulic Servo Valve Direct Drive Valve Total Pressure Control Valve

Research on Reliability Test of Blade Server

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Research on Reliability Test of Blade Server

第三届国际自动化测试与仪器仪表学术会议

作者： Zhang Xiaojie~1 Jiang Tongmin~1 Wang Dong~2 (1.Department of System engineering of engineering Technology beijing university of aeronautics and astronautics beijing 100191 china) (2.school of automation science and electrical engineering beijing university of aeronautics and astronautics beijing 100191 china)

＜正＞Blade server represents the direction of high performance computing in the *** is very important for the development of super computer in our *** need to improve it based on reliability test for it stably *** paper introduces the necessary of reliability test research for blade server and some correlation test technology,for the characteristic of Dawning TC2600 blade server,this paper discusses the test principle and the function which selects in the actual use, explained reliability and environmental test technology for this server,the method of reliability test are giving *** Dawning TC2600 blade server that passed reliability test will play an important role in the field of high performance *** the end,pointed that the proper and effective environmental test can improve the reliability of blade *** this conclusion can be applied to other type’s server.

关键词： blade server high performance computing reliability test environmental test

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飞机超声速巡航主动重心控制系统设计

系统仿真学报 2009年第23期21卷 7526-7530页

作者：张晶申功璋张磊北京航空航天大学自动化科学与电气工程学院北京100083

针对某型飞机,从飞行动力学角度推导了飞机巡航阻力与重心位置、气动焦点位置之间的关系,分析了主动重心控制技术降低飞机超声速巡航飞行阻力的基本原理;构建了适用于飞机超声速巡航的主动重心控制系统结构方案,在此基础上设计主动重心... 详细信息

针对某型飞机,从飞行动力学角度推导了飞机巡航阻力与重心位置、气动焦点位置之间的关系,分析了主动重心控制技术降低飞机超声速巡航飞行阻力的基本原理;构建了适用于飞机超声速巡航的主动重心控制系统结构方案,在此基础上设计主动重心控制器协调飞机的纵向稳定性和操纵性。仿真结果表明,将主动重心控制技术应用到某型飞机超声速巡航中,可有效减小巡航阻力,提高巡航的效率和航程。

关键词：飞机重心主动重心控制超声速巡航

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An output delay approach to fault estimation for sampled-data systems

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science china(Information sciences) 2012年第9期55卷 2128-2138页

作者： WEN Chenglin 1,QIU AiBing 2 & JIANG Bin 3 1 Institute of Information and Control,Hangzhou Dianzi university,Hangzhou 310018,china 2 school of electrical engineering,Nantong university,Nantong 226019,china 3 College of automation engineering,Nanjing university of aeronautics and astronautics,Nanjing 210016,china 1. Institute of Information and Control Hangzhou Dianzi University Hangzhou 310018 China2. School of Electrical Engineering Nantong University Nantong 226019 China3. College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

The problem of fault estimation for a class of non-uniformly sampled-data systems is investigated from the time delay point of view in this ***,the output delay approach is employed to model the sampled-data system as a continuous-time one with time-varying delay ***,based on the analysis of the inapplicability of the adaptive fault diagnosis observer in such class of time-delay systems,a novel augmented fault estimation observer design method is proposed to guarantee the exponential convergence of the estimation ***,an extension to the case of time varying fault estimation for the noisy sampled-data systems is ***,simulation results of a flight control system are presented to demonstrate the effectiveness of the proposed method.

关键词： fault estimation non-uniformly sampled-data augmented observer output delay

Preparation and properties of AZO thin films on different substrates

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Progress in Natural science:Materials International 2010年第1期20卷 44-48页

作者： Hong-lie shen,Hui ZHANG,lin-feng LU,Feng JIANG,Chao yanG College of Materials science and engineering, Nanjing university of aeronautics and astronautics,Nanjing 210016,china College of Materials science and engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

Al doped ZnO(AZO)films were deposited on glass,polyethylene naphthalate(PEN)and polyethylene terephthalate(PET) at room temperature by radio frequency magnetron *** structural,surface morphology,electrical and optical properties of the AZO films were characterized by X-ray diffractometry(XRD),atomic force microscopy(AFM),Hall effect measurement and ultraviolet-visible spectrometer,*** films exhibit highly c-axis preferred orientation,and AZO film on glass exhibits compressive stress while that on plastic substrates presents tensile *** electrical property of the AZO film on glass is the best among the films on three kinds of *** value of the figure of merit for the AZO film on PEN is much better than that of the AZO film on PET and is close to that of AZO on glass in the wavelength range of 500-900 nm.

关键词： AZO magnetron sputtering electrical and optical property plastic substrate glass substrate

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一种新型多无人机系统体系结构的设计

系统仿真学报 2008年第22期20卷 6137-6141页

作者：袁利平陈宗基北京航空航天大学自动化科学与电气工程学院北京100083

针对多无人机系统(multi-UAV system)的特点和执行作战任务的需要,对多无人机系统的体系结构进行了初步研究,先提出功能需求和设计原则,然后给出一种新型多无人机系统体系结构的详细设计方案。在该体系结构下,所有的无人机物理上平等,... 详细信息

针对多无人机系统(multi-UAV system)的特点和执行作战任务的需要,对多无人机系统的体系结构进行了初步研究,先提出功能需求和设计原则,然后给出一种新型多无人机系统体系结构的详细设计方案。在该体系结构下,所有的无人机物理上平等,没有哪一架无人机是不可缺少或不可替代的。该体系结构实现了在动态变化的战场环境下,无人机可以根据当前任务情况自主组建动态团队和子团队,无人机在团队框架下协作完成预定任务。团队中的无人机自主选举出团队领导,由团队领导对整个团队或子团队进行逻辑上的集中管理。最后对该体系结构实现中存在的几个问题进行分析并给出解决办法。设计过程表明,该体系结构能够满足所提出的功能需求。

关键词：多无人机系统协作体系结构面向任务动态团队

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