检索结果-内蒙古大学图书馆

IEEE International Conference on robotics and Biomimetics

作者： Ludan wang Hongguang Wang Lijin Fang Center for Robot Engineering Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen Guangdong China CAS-Designated Key Robotics Laboratory Shenyang Institute of Automation Chinese Academy of Sciences Shenyang Liaoning China

ISBN: (纸本)9781424417612;1424417619

This paper presents an inspection robot suspended on power transmission lines based on a novel movement mechanism with two manipulators and a body. After the inspection robot configuration is described, the process of obstacle-navigation are analyzed in details. During the process of auto obstacle-navigation, power line grasping control should be realized exactly with the arm of inspection robot. According to the transmission line geometry characteristic and the theory of perspective projection, a single camera stereovision method has been set up to detect the orientation and position vector of the power transition line. Based on that arithmetic and theory of visual servoing, line grasping servoing model is built up to achieve line-grasping control. Experimental results show that the robot can realize auto obstacle-navigation control and proves the valid of the control method.

关键词： Power transmission lines Inspection Mobile robots Automatic control robotics and automation Visual servoing Control systems Poles and towers Manipulators Arithmetic

来源：评论

学校读者我要写书评

暂无评论

A Study On Iterative Learning Control With Adjustment Of Learning Interval For Monotone Convergence In The Sense Of Sup-Norm

引用

Asian Journal of Control 2008年第1期4卷

作者： Kwang-Hyun Park Zeungnam Bien Division of EE Department of EECS Korea Advanced Institute of Science and Technology 373–1 Kusong-dong Yusong-gu Taejon 305–701 Korea. Zeungname Bien:received the B.S. degree in electronics engineering from Seoul National University Seoul Korea in 1969 and the M.S. and Ph.D. degrees in electrical engineering from the University of Iowa Iowa City Iowa U.S.A. in 1972 and 1975 respectively. During 1976–1977 academic years he taught as assistant professor at the Department of Electrical Engineering University of Iowa. Then Dr. Bien joined Korea Advanced Institute of Science and Technology summer 1977 and is now Professor of Control Engineering at the Department of Electrical Engineering and Computer Science KAIST. Dr. Bien was the president of the Korea Fuzzy Logic and Intelligent Systems Society during 1990–1995 and also the general chair of IFSA World Congress 1993 and for FUZZ-IEEE99 respectively. He is currently co-Editor-in-Chief for International Journal of Fuzzy Systems (IJFS) Associate Editor for IEEE Transactions on Fuzzy Systems and a regional editor for the International Journal of Intelligent Automation and Soft Computing. He has been serving as Vice President for IFSA since 1997 and is now Chief Chairman of Institute of Electronics Engineers of Korea and Director of Humanfriendly Welfare Robot System Research Center. His current research interests include intelligent control methods with emphasis on fuzzy logic systems service robotics and rehabilitation engineering and large-scale industrial control systems. Kwang-Hyun Park:received the B.S. M.S. and Ph.D. degrees in electrical engineering and computer science from KAIST Korea in 1994 19997 and 2001 respectively. He is now a researcher at Human-friendly Welfare Robot System Research Center. His research interests include learning control machine learning human-friendly interfaces and service robotics.

It has been found that some huge overshoot in the sense of sup-norm may be observed when typical iterative learning control (ILC) algorithms are applied to LTI systems, even though monotone convergence in the sense of λ-norm is guaranteed. In this paper, a new ILC algorithm with adjustment of learning interval is proposed to resolve such an undesirable phenomenon, and it is shown that the output error can be monotonically converged to zero in the sense of sup-norm when the proposed ILC algorithm is applied. A numerical example is given to show the effectiveness of the proposed algorithm.

关键词： Iterative learning control monotone convergence learning interval sup-norm

来源：评论

学校读者我要写书评

暂无评论

TRACKING CONTROL IN THE PRESENCE OF NONLINEAR DYNAMIC FRICTIONAL EFFECTS: ROBOT EXTENSION

引用

Asian Journal of Control 2008年第3期1卷

作者： M. Feemster D.M. Dawson A. Behal W. Dixon Matthew Feemster received the B.S degree in Electrical Engineering from Clemson University Clemson South Carolina in December 1994. Upon graduation he remained at Clemson University and received the M.S. degree in Electrical Engineering in 1997. During this time he also served as a research/teaching assistant. His research work focused on the design and implementation of various nonlinear control algorithms with emphasis on the induction motor and mechanical systems with friction present. He is currently working toward his Ph.D. degree in Electrical Engineering at Clemson University. Darren M. Dawson was born in 1962 in Macon Georgia. He received an Associate Degree in Mathematics from Macon Junior College in 1982 and a B.S. Degree in Electrical Engineering from the Georgia Institute of Technology in 1984. He then worked for Westinghouse as a control engineer from 1985 to 1987. In 1987 he returned to the Georgia Institute of Technology where he received the Ph.D. Degree in Electrical Engineering in March 1990. During this time he also served as a research/teaching assistant. In July 1990 he joined the Electrical and Computer Engineering Department and the Center for Advanced Manufacturing (CAM) at Clemson University where he currently holds the position of Professor. Under the CAM director's supervision he currently leads the Robotics and Manufacturing Automation Laboratory which is jointly operated by the Electrical and Mechanical Engineering departments. His main research interests are in the fields of nonlinear based robust adaptive and learning control with application to electro-mechanical systems including robot manipulators motor drives magnetic bearings flexible cables flexible beams and high-speed transport systems. Aman Behal was born in India in 1973. He received his Masters Degree in Electrical Engineering from Indian Institute of Technology Bombay in 1996. He is currently working towards a Ph.D in Controls and Robotics at Clemson University. His research focuses on the control of no

In this paper, we extend the observer/control strategies previously published in [25] to an n -link, serially connected, direct drive, rigid link, revolute robot operating in the presence of nonlinear friction effects modeled by the Lu-Gre model. In addition, we also present a new adaptive control technique for compensating for the nonlinear parameterizable Stribeck effects. Specifically, an adaptive observer/controller scheme is developed which contains a feedforward approximation of the Stribeck effects. This feedforward approximation is used in a composite controller/observer strategy which forces the average square integral of the position tracking error to an arbitrarily small value. Experimental results are included to illustrate the performance of the proposed controllers.

关键词： Friction compensation nonlinear control

来源：评论

学校读者我要写书评

暂无评论

Development of a CPM Machine for Injured Fingers

Development of a CPM Machine for Injured Fingers

引用

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： Yili Fu Fuxiang Zhang Xin Ma Qinggang Meng Robotics Institute and Advanced Manufacturing Technology Center Harbin Institute of Technology Harbin China Robotics Institute Harbin Institute of Technology Harbin China Biomedical Imaging Laboratory Singapore Affiliated Hospital Harbin Medical University Harbin China

Human fingers are easy to be injured. A CPM machine is a mechanism based on the rehabilitation theory of continuous passive motion (CPM). To develop a CPM machine for the clinic application in the rehabilitation of injured fingers is a significant task. Therefore, based on the theories of evidence based medicine (EBM) and CPM, we've developed a set of biomimetic mechanism after modeling the motions of fingers and analyzing its kinematics and dynamics analysis. We also design an embedded operating system based on ARM (a kind of 32-bit RISC microprocessor). The equipment can achieve the precise control of moving scope of fingers, finger's force and speed. It can serves as a rational checking method and a way of assessment for functional rehabilitation of human hands. Now, the first prototype has been finished and will start the clinical testing in Harbin Medical University shortly

关键词： Fingers Humans Biomimetics Motion analysis Kinematics Operating systems Reduced instruction set computing Microprocessors Force control Medical control systems

来源：评论

学校读者我要写书评

暂无评论

Development of a CPM machine for injured fingers

Development of a CPM machine for injured fingers

引用

2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005

作者： Fu, Yili Zhang, Fuxiang Ma, Xin Meng, Qinggang IEEE Robotics Institute Advanced Manufacturing Technology Center Harbin Institute of Technology Harbin CO 150001 China Robotics Institute Harbin Institute of Technology Harbin CO 150001 China Biomedical Imaging Lab. 30 Biopolis Street 138671 Singapore Singapore Harbin Medical University 4Th Affiliated Hospital Harbin CO 150086 China

ISBN: (纸本)0780387406

关键词： Biomedical equipment

来源：评论

学校读者我要写书评

暂无评论

Structure Types Design and Genetic Algorithm Dimension Synthesis of a CPM Machine for Injured Fingers

Structure Types Design and Genetic Algorithm Dimension Synth...

引用

IEEE International Conference on robotics and Biomimetics

作者： Yili Fu Fuxiang Zhang Shuguo Wang Robotics Institute and Advanced Manufacturing Technology Center Harbin Institute of Technology China Headmaster's office Harbin Institute of Technology China

In order to provide a CPM (continuous passive motion) machine for the rehabilitation of injured fingers and a means of quantitative detection and evaluation, we design the structure types of the CPM machine for injured fingers, and analyze the realization principles of the linkages of single degree of freedom and two degrees of freedom. A method of genetic algorithm dimension synthesis of the linkages based on the mechanical properties and motion properties is brought forward. Through the optimization calculation, we can know that the influence of the bars' dimensions to mechanical properties is slim but the motion properties are sensitive to them. The results show that by selecting proper bars' dimensions perfect mechanical properties and motion properties can be got

关键词： Algorithm design and analysis Genetic algorithms Fingers Mechanical factors Humans Couplings Motion analysis Orthopedic surgery Muscles Motion control

来源：评论

学校读者我要写书评

暂无评论

Topological dependence of mechanical responses of solidification microstructures in aluminum brazed joints

引用

中国有色金属学会会刊：英文版 2003年第6期13卷 1296-1300页

作者：高峰钱乙余 D.P.Sekulic 马鑫 F.Yoshida State Key Laboratory of Advanced Production Technology Center for Robotics and Manufacturing Systems Department of Mechanical System Engineering

The main objective is to provide an evidence of spatial dependence of mechanical responses of a heterogeneous aluminum brazed joint re-solidified clad, and to confirm a sufficient sensitivity of a nano-indentation—load curve method for identifying the dependence. Topological features of a network of solidification microstructures(α phase and eutectic), formed during quench in a brazing process of aluminum alloy, influence significantly dynamic mechanical responses of resulting heterogeneous material. Nano/micro indentation depth vs load characteristics of differing phases suggest a spatially sensitive mechanical response of a re-solidified fillet in the joint zone. Hence, a spatial distribution, pattern formations and other morphological characteristics of microstructures have a direct impact on an ultimate joint integrity. Topology-induced variations of indentation—load curves was presented. A hypothesis involving microstructures’ spatial distribution vs mechanical response was formulated.

关键词：铝铜焊显微结构凝固拓扑相关机械响应焊接铝合金

来源：评论

学校读者我要写书评

暂无评论

Reduced gravity ZBLAN optical fiber pulling

Reduced gravity ZBLAN optical fiber pulling

引用

38th Aerospace Sciences Meeting and Exhibit 2000

作者： Tucker, Dennis S. Workman, Gary L. Smith, Guy A. Space Optics Manufacturing Technology Center MSFC AL 35812 United States Center for Automation and Robotics University of Alabama in Huntsville Huntsville AL 35899 United States

Two optical fiber pullers have been designed for pulling ZBLAN optical fiber in reduced gravity. One fiber puller was designed, built and flown on board NASA's KC135 reduced gravity aircraft. A second fiber puller has been designed for use on board the International Space Station. © 2000 by the Amencan Institute of Aeronautics and Astronautics, Inc.

关键词： Optical fibers

来源：评论

学校读者我要写书评

暂无评论

Redundant actuation for improving kinematic manipulability

Redundant actuation for improving kinematic manipulability

引用

IEEE International Conference on robotics and automation (ICRA)

作者： J.F. O'Brien J.T. Wen Center for Advanced Technology in Automation Robotics & Manufacturing Department of Electrical Computer & Systems Engineering Rensselaer Polytechnic Institute Troy NY USA

Parallel mechanisms frequently contain an unstable type of singularity that has no counterpart in serial mechanisms. When the mechanism is at or near this type of singularity, it loses the ability to counteract external forces in certain directions. By altering the mechanism through, for example, additional kinematic linkages, the singularity can be modified or even removed. Another approach is to actuate certain unactuated degrees of freedom. The manipulability is guaranteed to improve over the original mechanism, but the mechanism is now over-actuated. By studying a recently proposed parallel machining center, we examine the effectiveness of singularity modification through redundant actuation. As a metric, we use the condition number of the recently developed manipulability ellipsoid for general parallel mechanisms.

关键词： Kinematics Parallel robots Ellipsoids manufacturing automation robotics and automation Computer aided manufacturing Manipulators Concurrent computing Systems engineering and theory Couplings

来源：评论

学校读者我要写书评

暂无评论

Technical note Hybrid fuzzy P+ID control of manipulators under uncertainty

引用

Mechatronics 1999年第3期9卷 301-315页

作者： W. Li X.G. Chang F.M. Wahl S.K. Tso Department of Computer Science and Technology Tsinghua University Beijing 100084 Peoples Republic of China Institute for Robotics and Process Control Technical University of Braunschweig Hamburger Str. 267 D-38114 Braunschweig Germany Center for Intelligent Design Manufacturing and Automation Department of Manufacturing Engineering and Engineering Management City University of Hong Kong Hong KongPeoples Republic ofChina

Currently, most commercial robot manipulators are equipped with conventional PID controllers due to their simplicity in structure and ease of design. Using such a controller, however, it is difficult to achieve a desired control performance since the dynamic equations of a mechanical manipulator are tightly coupled. In addition, they are highly nonlinear and uncertain. This paper uses a new hybrid control scheme to control a direct drive two-link manipulator under inertial parameters changes. The proposed hybrid control scheme consists of a fuzzy logic proportional controller and a conventional integral and derivative controller (FUZZY P+ID). In comparison with a conventional PID controller, only one additional parameter has to be adjusted to tune the FUZZY P+ID controller. The outlined experimental results demonstrate the effectiveness and the robustness of the new FUZZY P+ID controller.

关键词：

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：