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作者： Shinar, Josef Bokor, József Kulcsár, Balázs Israel Institute of Technology Faculty of Aerospace Engineering Haifa 3200 Israel Systems and Control Laboratory Computer Automation Research Institute Hungarian Academy of Sciences P.O.Box 63 Budapest Hungary

ISBN: (纸本)008045108X

The paper examines the conditions for isolating the unknown input detection from the effects of the measurements noise in the important family of positional control problems. The study is motivated by the need of improving the homing performance of interceptor missiles against randomly maneuvering targets. The required isolation is possible if, in addition to noisy relative position measurements, noise-free measurement of the line of slight rate or the relative lateral velocity is available. Although with noisy measurement of line of slight rate the isolation of the input is not possible, the detection filter designed for the noise- free case succeeds to provide a satisfactory estimate of target acceleration, which is needed for an improved homing performance. Copyright © 2005 IFAC.

关键词： Bandpass filters

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Abstracts from the 6th International Conference on the engineering of Sport, 10-14 July 2006, Olympic Hall, Munich, Germany Abstracts

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SPORTS engineering 2006年第2期9卷 107-127页

作者： [Anonymous] University of Massachusetts Lowell USA Science & Mathematics Department Kettering University Flint USA University of Illinois USA Western Michigan University USA Washington State University USA Casecade Engine USA Kanazawa University Japan Sumitomo Light Metal Japan Massachusetts Institute of Technology USA Nanyang Technological University Bioengineering Singapore University of Vienna Anthropology Austria Department of Mechanical Engineering University of Bath UK INSA Lyon France PETZL France Sports Materials Research Group University of Birmingham UK Laboratoire de Modélisation des Activités Sportives Bourget du Lac France Technical University Kaiserslautern Germany Department of Engineering Mechanics United States Air Force Academy Colorado Springs USA SRAM Corporation Colorado Springs USA Sports Engineering Research Group University of Sheffield UK Sports Engineering CSES Sheffield Hallam University USA Sports Engineering CSES Sheffield Hallam University UK Technische Universität München Germany Rush University Medical Center Chicago USA Faculty of Sports Science Department of Sport Equipment & Materials TU München Germany RMIT University Australia Institute of Health and Sports Sciences University of Tsukuba Ibaraki Japan Machine and Control Department Polytechnic University Kanagawa Japan SRI Sports Ltd. Hyogo Japan SRI Research and Development Ltd. Hyogo Japan Mizuno Corporation Osaka Japan Fukuoka Institute of Technology Fukuoka Japan University of Limerick Éire Graduate School of Engineering Hokkaido University Japan Faculty of Engineering Kitami Institute of Technology Japan University of Calgary Canada TaylorMade-adidas Golf Company USA Davis Mechanical Engineering University of California USA Davis Mechanical & Aeronautical Engineering University of California USA University of Wales Institute Cardiff Cardiff School of Sport UWIC Cardiff Cardiff School of Sport UWIC Wales Loughborough University UK Cranfield University UK Cr

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Solving polynomial static output feedback problems with PENBMI

Solving polynomial static output feedback problems with PENB...

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IEEE Conference on Decision and control

作者： D. Henrion J. Lofberg M. Kocvara M. Stingl LAAS CNRS Toulouse France Department of Control Engineering Faculty of Electrical Engineering Czech Technical University Prague Czech Republic Automatic Control Laboratory Swiss Federal Institute of Technology Zurich Switzerland Institute of Information Theory and Automation Academy of Sciences슠of the슠Czech Republic Prague Czech Republic Institute of Applied Mathematics University of Erlangen Erlangen Germany

An algebraic formulation is proposed for the static output feedback (SOF) problem: the Hermite stability criterion is applied on the closed-loop characteristic polynomial, resulting in a non-convex bilinear matrix inequality (BMI) optimization problem for SIMO or MISO systems. As a result, the BMI problem is formulated directly in the controller parameters, without additional Lyapunov variables. The publicly available solver PENBMI 2.0 interfaced with YALMIP 3.0 is then applied to solve benchmark examples. Implementation and numerical aspects are widely discussed.

关键词： Polynomials Output feedback Linear matrix inequalities Stability criteria Eigenvalues and eigenfunctions control engineering Lagrangian functions automatic control Laboratories Information theory

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Unknown Input Detection Using Receding Horizon Approach

Unknown Input Detection Using Receding Horizon Approach

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IEEE International Symposium on Intelligent control (ISIC)

作者： B. Kulcsar J. Bokor Department of Transport Automation Faculty of Transportation Engineering Budapest University슠of슠Technology슠and슠Economics Budapest Hungary System and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary

The paper offers the possibility of the design of unknown input detection for dynamic systems under external noise effect. The presented geometric based fundamental problem in residual generation (FPRG) method uses on the one hand the Kalman filtering and on the other hand the moving horizon estimation (MHE) when stochastic noise on the input and on the output, with additive failure directions, are presents. The paper combines the optimal Kalman and MHE method with geometric based unknown input observer strategy. The MHE solution makes to treat constraints during the estimation process possible. A numerical example supports the necessity of constrained unknown input estimation

关键词： Fault detection State estimation control systems Kalman filters Space technology Additive noise Automation Stability Predictive models Predictive control

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Generating multi-folded torus chaotic attractors

Generating multi-folded torus chaotic attractors

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International Conference on Physics and control

作者： Simin Yu Jinhu Lu Henry Leung Guanrong Chen College of Automation Guangdong University of Technology Guangzhou China Key Laboratory of Systems and Control Academy of Mathematics and Systems Science Chinese Academy and Sciences Beijing China Department of Electrical and Computer Engineering University of Calgary AB Canada Department of Electronic Engineering City University of Hong Kong China

A systematic methodology for generating multi-folded torus chaotic attractors from a simple three-dimensional piecewise-linear system is presented in this paper. Theoretical analysis shows that multi-folded torus chaotic attractors can be created via alternative switching between two piecewise-linear systems. A novel circuit diagram is designed for physically creating multi-folded torus chaotic attractors. This is the first time in the literature to experimentally verify a maximum 9-folded torus chaotic attractor that is generated by an analog circuit.

关键词： Chaos Piecewise linear techniques Oscillators Laboratories Analog circuits Electric breakdown Bifurcation Educational institutions Automation automatic generation control

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BAYESIAN APPROACH TO MODELLING OF QUASI-PERIODIC INTERMITTENT DEMAND

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IFAC Proceedings Volumes 2005年第1期38卷 343-348页

作者： Alexandre Dolgui Anatoly Pashkevich Maxim Pashkevich Division for Industrial Engineering and Computer Sciences (G2I) Ecole de Mines de Saint Etienne 158 Cours Fauriel 42023 Saint Etienne France Robotic Laboratory Department of Automatic Control Belarusian State University of Informatics and Radioelectronics 6 P.Brovka St. Minsk 220027 Belarus Department of Mathematical Modeling and Data Analysis Belarusian State University Skarina Av. 4 Minsk 220050 Belarus

The paper focuses on the stochastic modelling of the quasi-periodic intermittent demand patterns, which arise in the inventory management of the “slow moving items” such as service parts or high-priced capital goods. It is proposed a new stochastic model, which describes the demand patterns with essentially non-exponential distribution of the inter-arrival times. The model is based on generalized beta-binomial distribution and the Bayesian inference using the historical data array describing the demand repeatability within the time periods. For this model, there were derived explicit expressions for the forecast distributions, its moments and relevant Bayesian risk. The efficiency of the proposed approach is confirmed by computer simulation and an application example.

关键词： inventory control demand modelling statistical inference parameter estimation prediction methods

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Online-tuned multi-mode resonant piezoelectric shunt for broadband vibration suppression 3

Online-tuned multi-mode resonant piezoelectric shunt for bro...

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3rd IFAC Symposium on Mechatronic Systems 2004

作者： Niederberger, Dominik Fleming, Andrew Reza Moheimani, S.O. Morari, Manfred Automatic Control Laboratory Swiss Federal Institute of Technology Zurich Switzerland Laboratory for Dynamics and Control of Smart Structures School of Electrical and Computer Engineering University of Newcastle Australia

Broadband structural vibration can be suppressed through the connection of an electrical impedance to the terminals of a bonded piezoelectric transducer. This is referred to as piezoelectric shunt damping. Good nominal damping performance has been obtained with resonant shunts, but these shunts are highly sensitive to variations in structural resonance frequencies. In this paper, we present an online tuned multi-mode resonant shunt controller. For optimal tuning, the parameters of this shunt are adjusted online by minimizing the relative phase difference between a vibration reference signal and the shunt current. Experiments validate the proposed technique and demonstrate the simplicity of implementation. The tuning law converges quickly and maintains optimal performance in the presence of environmental uncertainties. Copyright © IFAC Mechatronic Systems, Sydney, Australia, 2004.

关键词： Damping

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UNDERWATER ACOUSTICS AND CAVITATING FLOW OF WATER ENTRY

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Acta Mechanica Sinica 2004年第4期20卷 374-382页

作者：施红辉 KUME Makoto State Key Laboratory of Nonlinear Mechanics Institute of MechanicsChinese Academy of SciencesBeijing 100080China College of Mechanical Engineering and Automatic ControlZhejiang University of SciencesXiasha Higher Education ZoneHangzhou 310018China Department of Mechanical Engineering Nagoya Institute of TechnologyGokiso-choShowa-kuNagoya 466-8555Japan

The fluid mechanics of water entry is studied through investigating the underwater acoustics and the *** acoustic signals in water entry are extensively measured at about 30 different positions by using a PVDF needle *** the measurements we obtain (1)the primary shock wave caused by the impact of the blunt body on free surface;(2)the vapor pressure inside the cavity;(3)the secondary shock wave caused by pulling away of the cavity from free surface;and so *** supercavitation induced by the blunt body is observed by using a digital high-speed video camera as well as the single shot *** periodic and 3 dimensional motion of the supercavitation is *** experiment is carried out at room temperature.

关键词： water entry underwater acoustics supercavitation PVDF hydrophone high-speed photography

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THE INTERACTION BETWEEN SHOCK WAVES AND SOLID SPHERES ARRAYS IN A SHOCK TUBE

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Acta Mechanica Sinica 2004年第3期20卷 219-227页

作者：施红辉 Kazuki YAMAMURA State Key Laboratory of Nonlinear Mechanics Institute of MechanicsChinese Academy of SciencesBeijing 100080China College of Mechanical and Automatic Control EngineeringZhejiang University of SciencesXiasha Higher Education ZoneHangzhou 310018China Department of Mechanical Engineering Nagoya Institute of TechnologyGokiso-choShowa-kuNagoya 466-8555Japan

When a shock wave interacts with a group of solid spheres,non-linear aerodynamic behaviors come into *** complicated wave reflections such as the Mach reflection occur in the wave propagation *** wave interactions with vortices behind each sphere's wake cause fluctuation in the pressure profiles of shock *** paper reports an experimental study for the aerodynamic processes involved in the interaction between shock waves and solid spheres.A schlieren photography was applied to visualize the various shock waves passing through solid *** measurements were performed along different downstream *** experiments were conducted in both rectangular and circular shock *** data with respect to the effect of the sphere array, size,interval distance,incident Mach number,etc.,on the shock wave attenuation were obtained.

关键词： shock wave spheres arrays models schlieren visualization pressure measurement compressible multiphase flow

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Online-Tuned Multi-Mode Resonant Piezoelectric Shunt for Broadband Vibration Suppression

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IFAC Proceedings Volumes 2004年第14期37卷 295-300页

作者： Dominik Niederberger Andrew Fleming S. O. Reza Moheimani Manfred Morari Automatic Control Laboratory Swiss Federal Institute of Technology Zurich Switzerland Laboratory for Dynamics and Control of Smart Structures School of Electrical and Computer Engineering The University of Newcastle Australia

关键词： Active Vibration control Shunt Damping Adaptation

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