检索结果-内蒙古大学图书馆

作者： Hirata, Kenji Hespanha, João P. Department of Mechanical Engineering Nagaoka University of Technology Nagaoka 940 2188 Japan Department of Electrical and Computer Engineering Center for Control Dynamical Systemsand Computation University of California Santa Barbara CA 93106 United States

ISBN: (纸本)9781424474264

This paper addresses the computation of the L2-induced gain for switched linear systems. The main contribution of the paper is to completely characterize the induced gain of a switched system though a differential inequalities on a finitely parametrized common storage function, one equation for each system being switched. The motivation for computing the induced gain of a switched system is the application of robust stability tools to the analysis of hybrid systems. © 2010 AACC.

关键词： Hybrid systems

来源：评论

学校读者我要写书评

暂无评论

Stability analysis of a class of biological network models

Stability analysis of a class of biological network models

引用

作者： Motee, Nader Bamieh, Bassam Khammash, Mustafa Control and Dynamical Systems Department California Institute of Technology 1200 E. California Blvd. Pasadena CA 91125 United States Department of Mechanical Engineering University of California Santa Barbara CA 93106 United States

ISBN: (纸本)9781424474264

In this paper, we establish stability conditions for a special class of interconnected systems arisen in several biochemical applications. It is known that most of the biochemical processes can be represented using quasi-polynomial systems. We show that a special class of quasi-polynomial systems can be cast in the Lotka-Volterra canonical form. We study the asymptotic stability properties of a class of quasi-polynomial systems which are relevant to biological network models. First, we show that under some sufficient conditions the solutions of the quasi-polynomial systems (in the positive orthant) converge to the set of equilibrium points. These results are applied to parameterized models of three different biological systems: generalized mass action (GMA) model, an oscillating biochemical network, and a reduced order model with Hill function. We show that one can find the range of parameters for which a given parameterized model is stable. © 2010 AACC.

关键词： Asymptotic stability

来源：评论

学校读者我要写书评

暂无评论

Sampling-based roadmap methods for a visual reconnaissance UAV

Sampling-based roadmap methods for a visual reconnaissance U...

引用

AIAA Guidance, Navigation, and control Conference

作者： Obermeyer, Karl J. Oberlin, Paul Darbha, Swaroop University of California at Santa Barbara Santa Barbara CA 93106 United States Texas A and M University College Station TX 77843 United States Center for Control Dynamical Systems and Computation United States Department of Mechanical Engineering United States

ISBN: (纸本)9781600869624

This article considers a path planning problem for a single fixed-wing aircraft performing a reconnaissance mission using EO (Electro-Optical) camera(s). A mathematical formulation of the general aircraft visual reconnaissance problem for static ground targets in terrain is given and it is shown, under simplifying assumptions, that it can be reduced to what we call the PVDTSP (Polygon-Visiting Dubins Traveling Salesman Problem), a variation of the famous TSP (Traveling Salesman Problem). Two algorithms are developed to solve the PVDTSP. They fall into the class of algorithms known as sampling-based roadmap methods because they operate by sampling a finite set of points from a continuous state space in order to reduce a continuous motion planning problem to planning on a finite discrete graph. The first method is resolution complete, which means it provably converges to a nonisolated global optimum as the number of samples grows. The second method achieves slightly shorter computation times by using approximate dynamic programming, but consequently is only guaranteed to converge to a nonisolated global optimum modulo target order. Numerical experiments indicate that, for up to about 20 targets, both methods deliver good solutions suitably quickly for online purposes. Additionally, both algorithms allow trade-off of computation time for solution quality and are shown extensible to handle wind, airspace constraints, any vehicle dynamics, and open-path (vs. closed-tour) problems. Copyright © 2010 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

关键词： Unmanned aerial vehicles (UAV)

来源：评论

学校读者我要写书评

暂无评论

Geometric control of Particle Manipulation in a Two-Dimensional Fluid

Geometric Control of Particle Manipulation in a Two-Dimensio...

引用

第二十九届中国控制会议

作者： Yizhar Or Joris Vankerschaver Scott D.Kelly Richard M.Murray Jerrold E.Marsden The Control and Dynamical Systems Department California Institute of Technology Department of Mechanical Engineering and Engineering Science University of North Carolina at Charlotte

Manipulation of particles suspended in fluids is crucial for many applications,such as precision machining,chemical processes,bio-engineering,and self-feeding of *** this paper,we study the problem of particle manipulation by cyclic fluid boundary excitations from a geometric-control *** focus on the simplified problem of manipulating a single particle by generating controlled cyclic motion of a circular rigid body in a two-dimensional perfect *** show that the drift in the particle location after one cyclic motion of the body can be interpreted as the geometric phase of a connection induced by the system.s *** formulate the problem as a control system,and derive a geometric criterion for its nonlinear ***,by exploiting the geometric structure of the system,we explicitly construct a feedback-based gait that results in attraction of the particle towards the rigid *** argue that our gait is robust and model-independent,and demonstrate it in both perfect fluid and Stokes fluid.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Help on SOS

引用

IEEE control systems MAGAZINE 2010年第4期30卷 18-23页

作者： [Anonymous] University of California at Berkeley (UCB) Mechanical Engineering Department United States California Institute of Technology United States Aerospace Engineering and Mechanics Department University of Minnesota United States Control Science and Dynamical Systems Program University of Minnesota United States

Andy Packard, an expert from University of California at Berkeley (UCB) mechanical engineering Department shares views on the use of sum-of-squares (SOS) methods to determine the region of attraction (ROA). SOS applies to polynomials in several real variables and a polynomial is a finite linear combination of monomials. The ROA can be visualized by simulating the system from many initial conditions and plotting the trajectories in a phase plane plot for systems with two or three states. SOS techniques can be used to perform nonlinear analyses, including computation of input/output gains, estimation of reachable sets, and computation of robustness margins. The approaches that apply to SOS methods includes the computational requirements that grow rapidly in the number of variables and polynomial degree, which roughly limits SOS-based analysis to systems with at most eight to ten states, one to two inputs, and polynomial vector fields of degree 3.

关键词： Polynomials

来源：评论

学校读者我要写书评

暂无评论

ℒ2-induced gains of switched systems and classes of switching signals

ℒ2-induced gains of switched systems and classes of switchi...

引用

IEEE Conference on Decision and control

作者： Kenji Hirata João P. Hespanha Department of Mechanical Engineering Nagaoka University of Technology Nagaoka Japan Center of Control Dynamical Systems and Computation and the Department of Electrical and Computer Engineering University of California Santa Barbara CA USA

This paper addresses the ℒ 2 -induced gain analysis for switched linear systems. We exploit non-conservative necessary and sufficient conditions for the induced gain to lie below a prescribed positive constant and discuss on the induced gains of switched systems obtained for different classes of switching signals, which distinct regularity assumptions are placed on. We particularly show that the induced gain that is obtained for the class of every piecewise constant switching signal can also be attained by the more restricted classes of switching signals.

关键词： Switches Switched systems Asymptotic stability Linear systems Stability criteria Gain

来源：评论

学校读者我要写书评

暂无评论

ℒ2-induced gain analysis of switched linear systems via finitely parametrized storage functions

ℒ2-induced gain analysis of switched linear systems via fin...

引用

American control Conference (ACC)

This paper addresses the computation of the ℒ 2 -induced gain for switched linear systems. The main contribution of the paper is to completely characterize the induced gain of a switched system though a differential inequalities on a finitely parametrized common storage function, one equation for each system being switched. The motivation for computing the induced gain of a switched system is the application of robust stability tools to the analysis of hybrid systems.

关键词： Switched systems Linear systems Asymptotic stability control systems Difference equations Sufficient conditions Riccati equations Water storage Gain Differential equations

来源：评论

学校读者我要写书评

暂无评论

Experimental Demonstration of the Dynamics and Stability of a Low Reynolds Number Swimmer Near a Plane Wall

Experimental Demonstration of the Dynamics and Stability of ...

引用

American control Conference

作者： Sebastian Zhang Yizhar Or Richard M. Murray Mechanical Engineering Department Clemson University SC 29634 USA Mechanical Engineering Department Technion - Israel Institute of Technology Haifa 32000 Israel Control and Dynamical Systems Department California Institute of Technology CA 91125 USA

ISBN: (纸本)9781424474264

The motion of microorganisms as well as of tiny robotic swimmers for biomedical applications is governed by low Reynolds number (Re) hydrodynamics, where viscous effects dominate and inertial effects are negligible. This paper presents experimental results that verify theoretical predictions of our recent work which analyzed the dynamics and stability of a low-Re swimmer near a plane wall. The experimental setup uses macro-scale swimmer prototypes which are propelled by rotating cylinders in highly viscous silicone oil. The motion is recorded by a video camera and position measurements are taken by an optical tracking system. The results show good qualitative agreement with our recent theoretical predictions.

关键词： dynamics low Reynolds number Video cameras rotating cylinders Silicone Oils Planing wall Microbes NATIONAL EMERGENCY ALARM REPEATER inertial effect Optical tracking

来源：评论

学校读者我要写书评

暂无评论

Help on SOS [Ask the Experts]

引用

IEEE control systems 2010年第4期30卷 18-23页

作者： Ufuk Topcu Andy Packard Peter Seiler Gary Balas Mechanical Engineering Department University of California Berkeley USA California Institute of Technology USA Aerospace Engineering and Mechanics Control Science and Dynamical Systems program University of Minnesota USA Aerospace Engineering and Mechanics Department University of Minnesota USA Research and Development Honeywell International Inc. USA

In this issue of IEEE control systems Magazine, Andy Packard and friends respond to a query on determining the region of attraction using sum-of-squares methods.

关键词： Polynomials Symmetric matrices Convergence Yield estimation control theory Matrix decomposition

来源：评论

学校读者我要写书评

暂无评论

Model Reduction of Polynomial dynamical systems Using Differential Algebra

Model Reduction of Polynomial Dynamical Systems Using Differ...

引用

2010 49th IEEE Conference on Decision and control

作者： Nader Motee Bassam Bamieh Mustafa Khammash Control and Dynamical Systems Department California Institute of Technology 1200 E. California Blvd Pasadena CA 91125 USA Department of Mechanical Engineering University of California Santa Barbara CA 93106 USA

ISBN: (纸本)9781424477456

In this paper, we propose a model reduction scheme for a special class of polynomial dynamical systems. The biochemical processes and networks are our main motivation for this study. It is well known that many biochemical processes can be represented using quasi-polynomial systems. We show that a special class of quasi-polynomial systems can be cast in the Lotka-Volterra canonical form. For a given polynomial dynamical system, we propose a procedure to verify whether a given set of polynomials represents an invariant manifold of the system. Then, we study under what algebraic conditions a Lotka-Volterra system admits invariant manifolds. Finally, we combine our results with tools from differential algebra to propose a model reduction procedure for polynomial dynamical systems.

关键词： dynamical systems differential calculus Reduced order model Polynomial Biochemical Processes Manifolds Algebra

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：