Author: Susan M. Yarling
Publisher:
ISBN:
Category :
Languages : en
Pages : 296

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Book Description

Author: Bruno Siciliano
Publisher: Springer Science & Business Media
ISBN: 1461544319
Category : Technology & Engineering
Languages : en
Pages : 154

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Book Description
One of the fundamental requirements for the success of a robot task is the capability to handle interaction between manipulator and environment. The quantity that describes the state of interaction more effectively is the contact force at the manipulator's end effector. High values of contact force are generally undesirable since they may stress both the manipulator and the manipulated object; hence the need to seek for effective force control strategies. The book provides a theoretical and experimental treatment of robot interaction control. In the framework of model-based operational space control, stiffness control and impedance control are presented as the basic strategies for indirect force control; a key feature is the coverage of six-degree-of-freedom interaction tasks and manipulator kinematic redundancy. Then, direct force control strategies are presented which are obtained from motion control schemes suitably modified by the closure of an outer force regulation feedback loop. Finally, advanced force and position control strategies are presented which include passivity-based, adaptive and output feedback control schemes. Remarkably, all control schemes are experimentally tested on a setup consisting of a seven-joint industrial robot with open control architecture and force/torque sensor. The topic of robot force control is not treated in depth in robotics textbooks, in spite of its crucial importance for practical manipulation tasks. In the few books addressing this topic, the material is often limited to single-degree-of-freedom tasks. On the other hand, several results are available in the robotics literature but no dedicated monograph exists. The book is thus aimed at filling this gap by providing a theoretical and experimental treatment of robot force control.

Author: American Statistical Association. Section on Physical and Engineering Sciences
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 804

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Book Description

Author: Mark W Spong
Publisher: John Wiley & Sons
ISBN: 9788126517800
Category : Robots
Languages : en
Pages : 356

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Book Description
This self-contained introduction to practical robot kinematics and dynamics includes a comprehensive treatment of robot control. It provides background material on terminology and linear transformations, followed by coverage of kinematics and inverse kinematics, dynamics, manipulator control, robust control, force control, use of feedback in nonlinear systems, and adaptive control. Each topic is supported by examples of specific applications. Derivations and proofs are included in many cases. The book includes many worked examples, examples illustrating all aspects of the theory, and problems.

Author: Albert Blodgett
Publisher: Institute of Electrical & Electronics Engineers(IEEE)
ISBN: 9780780314245
Category : Technology & Engineering
Languages : en
Pages : 504

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Book Description

Author: Surag Balajepalli
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 107

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Book Description
Stable force feedback control of robot arms has the potential to improve the utility of robotic systems by equipping them with the ability to perform complex contact tasks like machining and assembly. This study explores the stability limitations of force feedback control on a robot arm for applications in remote supervisory control. Supervisory control is useful in situations where communication between a human operator and a robot suffers from large delays, making direct teleoperation impractical. It sets up a foundation of stable compliant behaviors specified using virtual attractors upon which algorithms to perform complex tasks can be developed. Influence of linear and nonlinear internal dynamics of a robot arm on efficacy of active compliance is studied. Additionally, it has been shown that force feedback can be effective in suppressing unwanted effects of nonlinear friction in the robot. Results have been validated experimentally by implementing force feedback control on an ABB IRB 120 robot.

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 380

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Author: Kohei Ohtsu
Publisher: Springer
ISBN: 4431553037
Category : Mathematics
Languages : en
Pages : 127

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Book Description
This book presents multivariate time series methods for the analysis and optimal control of feedback systems. Although ships’ autopilot systems are considered through the entire book, the methods set forth in this book can be applied to many other complicated, large, or noisy feedback control systems for which it is difficult to derive a model of the entire system based on theory in that subject area. The basic models used in this method are the multivariate autoregressive model with exogenous variables (ARX) model and the radial bases function net-type coefficients ARX model. The noise contribution analysis can then be performed through the estimated autoregressive (AR) model and various types of autopilot systems can be designed through the state–space representation of the models. The marine autopilot systems addressed in this book include optimal controllers for course-keeping motion, rolling reduction controllers with rudder motion, engine governor controllers, noise adaptive autopilots, route-tracking controllers by direct steering, and the reference course-setting approach. The methods presented here are exemplified with real data analysis and experiments on real ships. This book is highly recommended to readers who are interested in designing optimal or adaptive controllers not only of ships but also of any other complicated systems under noisy disturbance conditions.

Author: Lorenzo Sciavicco
Publisher: Springer Science & Business Media
ISBN: 1447104498
Category : Technology & Engineering
Languages : en
Pages : 391

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Book Description
Fundamental and technological topics are blended uniquely and developed clearly in nine chapters with a gradually increasing level of complexity. A wide variety of relevant problems is raised throughout, and the proper tools to find engineering-oriented solutions are introduced and explained, step by step. Fundamental coverage includes: Kinematics; Statics and dynamics of manipulators; Trajectory planning and motion control in free space. Technological aspects include: Actuators; Sensors; Hardware/software control architectures; Industrial robot-control algorithms. Furthermore, established research results involving description of end-effector orientation, closed kinematic chains, kinematic redundancy and singularities, dynamic parameter identification, robust and adaptive control and force/motion control are provided. To provide readers with a homogeneous background, three appendices are included on: Linear algebra; Rigid-body mechanics; Feedback control. To acquire practical skill, more than 50 examples and case studies are carefully worked out and interwoven through the text, with frequent resort to simulation. In addition, more than 80 end-of-chapter exercises are proposed, and the book is accompanied by a solutions manual containing the MATLAB code for computer problems; this is available from the publisher free of charge to those adopting this work as a textbook for courses.

Author: P.J. Fleming
Publisher: Elsevier
ISBN: 1483298256
Category : Technology & Engineering
Languages : en
Pages : 279

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Book Description
Computer scientists have long appreciated that the relationship between algorithms and architecture is crucial. Broadly speaking the more specialized the architecture is to a particular algorithm then the more efficient will be the computation. The penalty is that the architecture will become useless for computing anything other than that algorithm. This message holds for the algorithms used in real-time automatic control as much as any other field. These Proceedings will provide researchers in this field with a useful up-to-date reference source of recent developments.