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Studying on the Fuzzy-QFD System Based on Database Class Encapsulation Technology

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武汉理工大学学报 2006年第S1期28卷 388-392页

作者： FANG Xifeng1,ZHANG Shengwen1,lu yuping2.WU Hongtao2.(1. Mechanical and Power {2.Institute,jiangsu university of Science and technology,Zhenjiang 2.2.03,china 2. college of automation {2.Nanjing university of aeronautics and astronautics,Nanjing {12.,china) Mechanical and Power engineering.Institute Jiangsu University of Science and technologyZhenjiang 212003China college of automation {2. Nanjing University of Aeronauticsand AstronauticsNanjing 210016China

Complicated product QFD system design information including design and manufacturing, operation and maintenance as well as relative supply information, all are tightly related to the product life cycle cooperative design and the process of establishing the QFD system. In the early stage of product design, we can only get the fuzzy and unreliable information. With design going, the fuzzy and unreliable information become less and less. The defect of the traditional QFD is not deal with the fuzzy contents very well. Adopt database class encapsulation and fuzzy inference technology, and then discuss the realization of QFD system based on VFP database. The structure of the fuzzy QFD system based on database class's encapsulation is built and the work flow of fuzzy algorithm based on VFP software is presented. In the analysis of fuzzy QFD process, fuzzy inference is adopted. A developed prototype system and an example have verified some presented techniques and the research results are the basis of the future development.

关键词： quality function deployment(QFD) database class encapsulation fuzzy inference

Online-SVR-compensated nonlinear generalized predictive control for hypersonic vehicles

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Science china(Information Sciences) 2011年第3期54卷 551-562页

作者： CHENG lu , JIANG Chang Sheng & PU Ming college of {2. engineering. Nanjing university of aeronautics and astronautics, Nanjing 2.0016, china 1. college of automation {2. Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

This paper is concerned with the problem of hypersonic vehicle (HSV) attitude control system in uncertain flight conditions. The problem can be expressed as the adaptive robust control for a class of uncertain nonlinear systems. Based on the description of the aerodynamic structure and the model of flight control system of a certain kind of HSV, the ideal nonlinear generalized predictive control (NGPC) law based on uncertain nonlinear model is raised first to optimize the receding-horizon criterion of tracking errors. Then the online support vector regression (SVR) is employed to identify the uncertain item in the ideal control law. It is the compensating part of the controller. In addition, the stability of the close-loop system is analyzed using the Lyapunov method. The developed control strategy is well-implemented in this HSV attitude control system, and the simulation results compared with both nominal NGPC and RBF neural network disturbance observer show the good robustness and disturbance attenuation ability of this strategy and demonstrate the efficiency of online SVR algorithm.

关键词： hypersonic vehicle flight control nonlinear generalized predictive control online support vector regression

Dynamic Event-Triggered Quadratic Nonfragile Filtering for Non-Gaussian Systems:Tackling Multiplicative Noises and Missing Measurements

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1127-1138页

作者： Shaoying wang Zidong wang Hongli Dong Yun Chen Guoping lu college of Science Shandong University of AeronauticsBinzhou 256603China college of Electrical engineering.and {2. Shandong University of Science and TechnologyQingdao 266590 Department of Computer Science Brunel University LondonUxbridge UB83PHUK Artificial Intelligence Energy Research Institute Northeast Petroleum UniversityDaqing 163318 Heilongjiang Provincial Key Laboratory of Networking and Intelligent Control Northeast Petroleum UniversityDaqing 163318China School of automation Hangzhou Dianzi UniversityHangzhou 310018China School of Electrical engineering Nantong UniversityNantong 226019China

This paper focuses on the quadratic nonfragile filtering problem for linear non-Gaussian systems under multiplicative noises,multiple missing measurements as well as the dynamic event-triggered transmission *** multiple missing measurements are characterized through random variables that obey some given probability distributions,and thresholds of the dynamic event-triggered scheme can be adjusted dynamically via an auxiliary *** attention is concentrated on designing a dynamic event-triggered quadratic nonfragile filter in the well-known minimum-variance *** this end,the original system is first augmented by stacking its state/measurement vectors together with second-order Kronecker powers,thus the original design issue is reformulated as that of the augmented ***,we analyze statistical properties of augmented noises as well as high-order moments of certain random *** the aid of two well-defined matrix difference equations,we not only obtain upper bounds on filtering error covariances,but also minimize those bounds via carefully designing gain ***,an example is presented to explain the effectiveness of this newly established quadratic filtering algorithm.

关键词： filtering quadratic bounds

Wind disturbance compensated path-following control for fixed-wing UAVs in arbitrarily strong winds

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Chinese Journal of aeronautics 2024年第2期37卷 431-445页

作者： Hao lu Lan GAO Yunda YAN Mingzhe HOU Chenliang wang Hangzhou Innovation Institute Beihang UniversityHangzhou 310051China School of Information Science and Technology Hangzhou Normal UniversityHangzhou 311121China Department of Computer Science University College LondonLondon WC1E 6BTUnited Kingdom Center for Control Theory and Guidance Technology Harbin Institute of TechnologyHarbin 150001China School of automation Science and Electrical engineering Beihang UniversityBeijing 100191China

Wind is the primary challenge for low-speed fixed-wing unmanned aerial vehicles to follow a predefined flight *** cope with various wind conditions,this paper proposes a wind disturbance compensated path following control strategy where the wind disturbance estimate is incorporated with the nominal guiding vector field to provide the desired airspeed direction for the *** the control input vector for the outer-loop kinematic subsystem needs to satisfy a magnitude constraint,a scaling mechanism is introduced to tune the proportions of the compensation and nominal ***,an optimization problem is formulated to pursue a maximum wind compensation in strong winds,which can be solved analytically to yield two scaling factors.A cascaded inner-loop tracking controller is also designed to fulfill the outer-loop wind disturbance compensated guiding vector ***-fidelity simulation results under sensor noises and realistic winds demonstrate that the proposed path following algorithm is less sensitive to sensor noises,achieves promising accuracy in normal winds,and mitigates the deviation from a desired path in wild winds.

关键词： Path following Guiding vector field Wind disturbance Disturbance rejection Fixed wings

The Kinematics and Control of Relative Attitude Pointing for Spacecraft Formation Flying

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The Kinematics and Control of Relative Attitude Pointing for...

Concentration sensing system with monolithic InGaN/GaN photonic chips

2.09中国控制与决策会议

作者： YouTao Gao~1,Bo Xu~2.yuping lu~(1,2. 1.{2. of automation engineering.Nanjing university of aeronautics and astronautics,Nanjing,2.0016,china 2.{2. of astronautics,Nanjing university of aeronautics and astronautics,Nanjing,2.0016,china

A geometric method which exploits the coupled relationship between relative position and relative attitude pointing is proposed to derive the desired relative attitude pointing Euler *** coupled kinematics and the dynamics equations of the relative attitude pointing are obtained.A sliding mode control based on exponent reaching law is applied to the coupled control *** simulation results show the effectiveness of the coupled control system on the relative attitude pointing and relative position of spacecraft formation flying.

关键词： Spacecraft Formation Flying Coupled Control Attitude pointing Kinematics and Dynamics Sliding Mode Control

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Chinese Optics Letters 2024年第6期22卷 170-176页

作者： Feifei Qin Xueyao lu Yang Chen Xumin Gao Yue Cao Lei Zhang Junfeng lu Xiaoxuan {2. Gangyi Zhu Yongjin {2. GaN Optoelectronic Integration International Cooperation Joint Laboratory of jiangsu Province College of Telecommunications and Information EngineeringNanjing University of Posts and TelecommunicationsNanjing 210003China college of Physics and Key Laboratory of Aerospace Information Materials and Physics(MIIT) Nanjing University of Aeronautics and AstronauticsNanjing 211106China State Key Laboratory of Digital Medical engineering School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China

Using an identical monolithic InGaN/GaN light emitting diode (LED) array as the sensing module and a well-designed data processing module, we demonstrate a small-size concentration sensing prototype. Overlap between the emission and the response spectra of the InGaN/GaN LED makes each pair of LEDs in the arrayed chip form a sensing channel. The changes in liquid concentration can be transformed into variation of photocurrent. The system's sensing properties are further optimized by varying the position, number of receivers, and packaging reflectors. With methyl orange as a tracer agent, the sensing system's resolution is 0.2.6 μmol/L with a linear measurement region below 40 μmol/L.

关键词： InGaN/GaN diodes array liquid concentration sensing coexistence of luminescence detection

Top priority current path between SiC particles during ultra-high temperature flash sintering: Presence of PyC “bridges”

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Journal of Advanced Ceramics 2024年第2期13卷 255-262页

作者： Le lu Tianlong Liu Zhaofeng Chen Fei wang Mengmeng Yang Qiong Wu Lixia Yang Huanyong Li International Laboratory for Insulation and Energy Efficiency Materials College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 211106China State Key Laboratory of Solidification Processing School of Materials and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China

Flash sintering(FS)is a novel technique for rapidly densifying silicon carbide(SiC)*** work achieved a rapid sintering of SiC ceramics by the utilization of ultra-high temperature flash sintering within 60 *** carbon(PyC)“bridges”were constructed between SiC particles through the carbonisation of phenolic resin,providing a large number of current *** incubation time of the flash sintering process was significantly reduced,and the sintering difference between the centre and the edge regions of the ceramics was minimized,with an average particle size of the centre region and edge region being 12.31 and 9.02.m,*** results showed that the porosity of the SiC ceramics after the flash sintering was reduced to 14.79% with PyC“bridges”introduced,and the Vickers hardness reached 19.62.***“bridges”gradually evolved from amorphous eddy current carbon to oriented graphite carbon,indicating that the ultra-high temperature environment in which the sample was located during the flash sintering was successfully ***-high temperature flash sintering of SiC is expected to be applied to the local repair of matrix damage in SiC ceramic matrix composites.

关键词： silicon carbide(SiC) flash sintering(FS) pyrolytic carbon(PyC)"bridges" current path instantaneous

A closed-loop multivariable quality control scheme for injection molding process

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A closed-loop multivariable quality control scheme for injec...

一种具备协作机制的市场化无人战斗机任务分配方法

第2.届中国控制与决策会议

作者： Zhang Fei 1 , lu Ning-yun 1 , Yang Yi 2., Zhao Fei 1 1. college of {2. engineering. Nanjing university of aeronautics and astronautics, Nanjing 2.0016, china2.Department of Control engineering.and Science, Zhejiang university, Hangzhou 310007, china

Closed-loop quality control by adjusting multiple process parameters can enlarge the operating space;therefore, it can deal with more severe quality deviations in the quality control system. A closed-loop multivariable quality control scheme is presented for injection molding process. The initial process settings are determined by DOE based parameter optimization. The multilayer group method of data handling （GMDH） algorithm is used to develop the quality model. The sequential quadratic programming （SQP） method is adopted in the quality controller design, where the optimal parameters are calculated cycle by cycle according to the observed quality deviation. Quality measurements are provided by a multiway partial least square （MPLS） regression model. The illustrative example can show the feasibility of the proposed quality control scheme.

关键词： Closed-loop quality control group method of data handling (GMDH) sequential quadratic programming (SQP) multi-way partial least square (MPLS) injection molding process.

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系统仿真学报 2008年第S1期20卷 534-538,545页

作者：张雷王道波南京航空航天大学自动化学院江苏南京210016 空军装备研究院通信导航与指挥自动化研究所北京100085

当多无人战斗机编队需要对多个目标的敌方阵地进行攻击时,如何在有限的无人战斗机中选择最优的任务分配方案是UCAV编队能够有效完成任务的关键。首先提出了的方案优劣判定定理,然后将目标看作优化对象,根据UCAV的数目和目标的数目之间... 详细信息

当多无人战斗机编队需要对多个目标的敌方阵地进行攻击时,如何在有限的无人战斗机中选择最优的任务分配方案是UCAV编队能够有效完成任务的关键。首先提出了的方案优劣判定定理,然后将目标看作优化对象,根据UCAV的数目和目标的数目之间的差别制定了相应的任务分配策略。其次,基于相应的任务分配策略提出了具备合作机制的市场化的任务分配方法。该方法通过市场上买卖的方法和优化目标之间的相互协作,可以求出满足帕累托优化条件的最优任务分配方案。最后将本方法和基于粒子群的任务分配方法进行了对比分析并且进行了仿真验证。仿真结果表明使用本方法可以消除使用粒子群算法给帕累托最优方案的求解带来的不确定性。在局部代价和收益发生变化时,通过局部协调就可以获得最佳任务分配方案。

关键词：无人战斗机任务规划任务分配多目标优化帕雷托优化