μ Synthesis Method for Robust Control of Uncertain Nonlinear Systems

μ synthesis method for robust control of uncertain nonlinear systems is propored, which is based on feedback linearization. First, nonlinear systems are linearized as controllable linear systems by I/O linearization,such that uncertain nonlinear systems are expressed as the linear fractional transformations (LFTs) on the generalized linearized plants and uncertainty.Then,linear robust controllers are obtained for the LFTs usingμsynthesis method based on H∞ optimization.Finally,the nonlinear robust controllers are constructed by combining the linear robust controllers and the nonlinear feedback.An example is given to illustrate the design.     

μ Synthesis Method for Robust Control of Uncertain Nonlinear Systems

μ synthesis method for robust control of uncertain nonlinear systems is propored, which is based on feedback linearization. First, nonlinear systems are linearized as controllable linear systems by I/O linearization,such that uncertain nonlinear systems are expressed as the linear fractional transformations (LFTs) on the generalized linearized plants and uncertainty.Then,linear robust controllers are obtained for the LFTs usingμsynthesis method based on H∞ optimization.Finally,the nonlinear robust controllers are constructed by combining the linear robust controllers and the nonlinear feedback.An example is given to illustrate the design.     

CONTENTS OF THE JOURNAL OF GANSU UNIVERSITY OF TECHNOLOGY 1987

(The figures in the brackets are the V01.,No.,and Page respectively)Stability Test and Stability Conditions for Retarded Delay Differentinl Systems(I)…………………………………………………………………Liu XiyuanN011-1inear Force Vibration of Circular Tbin Plates Acted by a Concen- trated Foroe at the Centre…………Wang Xinzhi,Huang Yu,Wang LinxiangA New Method of Compensating for the Effects of Operational Amplifier Gsin Bandwidth in the Sallen and Key Filter(13,1,1)(13,1,27) ……     

CONTENTS OF VOLUME19,2003 JOURNAL OF GUANGXI ACADEMY OF SCIENCES

No.1(February 2 0 0 3)Network Education System Based on Multicast L iao Yikui　 Wang Zhiwen　 Wei Weixing (1)……………Design and Realization of Medicine Information Query System on Touch Screen Yang L iu (5 )……………Development of IP Videophone Terminal Based on DSP Guo Xiaoqiang　 L uo H ui(8)……………………Design and Realization of Network Examination System Based on ASP Ge L ina　 Zhong Cheng (12 )………Design and Realization of Personnel Abetment Insurance Managemen…     

CONTENTS OF THE JOURNAL OF GANSU UNIVERSITY OF TECHNOLOGY 2001

(The figures in the brackets are the Vol.,No.,and page respectively). Materials.Innuence of re8idual coInPressive stress on warm prestress toughening of HSLA steel... ... ... ... ... ...... ...... ............ ... ....... ............... ... ..' WANG Wei-bin, CM Jian--hong, WANG thezhen (27, 1, 01 )Mechanical proPerty identifieation of materials by using fuzzy neural network............................... yU Shu-rmg, NNGJumun l LI Jian-hna (27, 1,08)Characteristics of bead weld pro…     

基于μ C/OS-Ⅱ的USB接口CAN网络适配器

在介绍CAN网络适配器应用模型的基础上,阐述了CAN网络适配器硬件结构及元器件的选择.文中叙述了CAN网络适配器的固件程序、单片机和上位机USB驱动程序的设计思想和实现方法,对CAN网络适配器的单片机内置入的μC/OS-Ⅱ作了较深入地分析和研究.设计制作的CAN网络适配器成本低,性能稳定,具有较好的应用前景.     

LIST OF THESIS OF POSTGRADUATE STUDENTS

The papers published in this journal are not Including there.Optimum Design of Truss with Buckling Constraints of Members... ... ... ... ... ... ... .'. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... Ge ZengjieApproximations in Optimum Design of Structures. ... ... .. . Wang XichengOptimum Design of Rein forced Concrete Fundamental Members byUsing Geometrical Programming Techniques .. . ... ... ... ... ... .. ...Jiang JingkaiElasto-Plastic Response of Sp…     

DETERMINATION OF MEMBRANE THICKNESS OF MICROCAPSULE

A new optical microscope duplex focus method is proposed to determine membrane thickness through direct measuring the interior and outer diameters of microcapsules by optical microscope duplex focusing.     

CONTENTS AND ABSTRACTS OF SCIENCE REPORT OF DALIAN INSTITUTE OF TECHNOLOGY

80001 The Maximum Wave Force on Piers Qiu DahongIn this paper, the probability distribution of the maximum values ofirregular wave force on piers is discussed. Methods to estimate the ultimate maximum wave force under the action of a certain sea condition for a certaintime duration t and the maximum wave force of a certain cumulative probabi-lity are given here.In this discussion, we suppose that: 1) the Morison's equation is validhere; 2 ) the distribution of the water surface elevation un…     

JOURNAL OF DONGGUAN UNIVERSITY OF TECHNOLOGY CONTENTS OF Vol. 10

NO·1(sum.19)APplied TechnologyDynamie Configuration Teehnique of CPLD Deviee in ^rbitrary Signal Generator..................……LiaogHanjuo HuaogCanhua YuChe二gHa刀Q初gtao(l)An Introduetion to Intelligent Multifunetional Digital Device fer Frequency Testing on CPLD.........................……LIW‘ifan Yao Yuche刀9 Yu cbe刀g(6)Existing Problems and Suggested Solutions for the Banking System Network..................……Lju BID(12)Researeh on the Method of Produet nesign of…     

AN ANALYSIS OF DYNAMIC PERFORMANCE OF BACK REST OF WEAVING MACHINERG

Periodic variations of warp tension during a weaving cycle results in corresponding variationsof back rest position.However,the oscillation of back rest,in turn,shows effect on the variation ofdynamic warp tension.As a force transfer medium,warp yarn,with specific dynamic performances,is certainly one of the factors influencing the movement of back rest.In this paper,warp yarn istreated as a viscoelastic medium in studying the dynamic behaviours of back rest.A mathematicalmodel of a back rest system is developed based on the automatic control theory.Several factors arelisted,which show influences on the performances of the back rest system.Analytical work is car-ried out to identify the effects on the frequency response of the back rest systen resulting from vari-ations of such parameters as the modulus of elasticity,of both fast-elastic and slow-elasticdeformations,and viscosity coefficient.     

JOURNAL OF DONGGUAN UNIVERSITY OF TECHNOLOGY CONTENTS OF Vol.9

No．１（Sum．１７）AppliedTechnologyTheDesignofHigh－speedandWide－frequencyDataCollectionSystemBasedonMcu．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．XiaoHuijuanYuCheng（）ApplicationoftheAutoCAD２０００BasedGraphicSolution．．．．．．．．．．．．．．．．．．．．ZuoYuanzhiLiXiya（）TheApplicationofSplitting－injectionAntiseepTechnilogytoBase－hollowFendingProject．．．．．．．．．．．．．．．．．．．．．．．XieShangyongZhangWeijiangLiuJi（）Computerize…     

μ C/OS-Ⅱ在LPC2214处理器上的移植

介绍了目前在嵌入式系统应用中非常流行的实时操作系统μC/OS-II和ARM微处理器,论述了μC/OS-II在基于ARM7TDMI体系结构的PHILIPS32-bit嵌入式微控制器LPC2214上移植的实现过程,指出了在μC/OS-II的移植过程中的重点和难点问题,得出了μC/OS-II在ARM上的移植的一般性方法。     

KINETICS OF NON-ISOTHERMAL CRYSTALLIZATION OF SYNDIOTACTIC POLYSTYRENE

用差示扫描量热分析（ＤＳＣ）研究了间规聚苯乙烯（ｓＰＳ）的非等温结晶动力学，并用几种不同的方法处理了所得的ＤＳＣ数据．结果发现，ｓＰＳ的非等温结晶过程遵循Ｏｚａｗａ动力学方程，但不符合Ｊｅｚｉｏｒｎｙ方法中的Ａｖｒａｍｉ动力学方程．用Ｏｚａｗａ方程计算得到的Ａｖｒａｍｉ指数（ｎ）值高于等温结晶时所得的ｎ值，这是由于ｓＰＳ非等温结晶过程中的温度依赖性造成的，它使得Ａｖｒａｍｉ方程中的ｌｏｇ〔－ｌｎ（１－Ｘｔ）〕对ｌｏｇｔ不具有线性关系．ｓＰＳ的动力学结晶能力（Ｇｃ）基本上不依赖于冷却速率，其平均值为１．０７９，可作为表征ｓＰＳ非等温结晶动力学的一个基本参数．     

实时操作系统μ C/OS-II在ARM上的移植与实现

本文介绍了实时操作系统μ C/OS-II的特点,讨论了其在LPC2210上移植的可能性,成功地将μ C/OS-II移植到LPC2210上,并通过实验验证了移植代码的正确性。     

L~p-BOUNDEDNESS OF A KIND OF MULTI-PSEUDO-DIFFERENTIAL OPERATORS

1 Main ResultWe consider a kind of multi-pseudo-differential operators, which is introduced by R. Coifman and Y.Meyer [1].Let symbol function σ(x , a, ε)∈C~∞(R~n×R~(nm)×R~n) satisfy the following conditions:where x∈R~n, a = (a_1,…,a_m) a-j∈R~n,ζ∈R~n, q = (q_1,…,q_m), q_j∈(Z+)~n and q =|q_1|+…+|q_m|,The multi-pseudo-differential operator with the symbol o(x,α,ζ) is defined as follows