The Near-minimum-time Control of Open-loop Articulated Kinematic Chains
The Near-minimum-time Control of Open-loop Articulated Kinematic Chains

Author: Michael Edwin Kahn

Publisher:

Published: 1969

Total Pages: 202

ISBN-13:

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The time-optimal control of a system of rigid bodies connected in series by single-degree-of-freedom joints is studied. The dynamical equations of the system are highly nonlinear and a closed-form representation of the minimum-time feedback control is not possible. However, a suboptimal feedback control which provides a close approximation to the optimal control is developed. The suboptimal control is expressed in terms of switching curves for each of the system controls. These curves are obtained from the linearized equations of motion for the system. Approximations are made for the effects of gravity loads and angular velocity terms in the nonlinear equations of motion. Digital simulation is used to obtain a comparison of response of the optimal and suboptimal controls. The speed of response of the suboptimal control is found to compare quite favorably with the response speed of the optimal control. The analysis is applied to the control of three joints of a mechanical manipulator. Modifications of the suboptimal control for use in a sampled-data system are shown to result in good performance of a hydraulic manipulator under computer control. (Author).

Real-Time Dynamics of Manipulation Robots
Real-Time Dynamics of Manipulation Robots

Author: M. Vukobratovic

Publisher: Springer Science & Business Media

Published: 2013-12-11

Total Pages: 254

ISBN-13: 3642821987

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This is the fourth book from the Series "Scientific Fundamentals of Ro botics". The first two volumes have established abackqround for studying the dynamics and control of robots. While the first book was exclusive ly devoted to the dynamics of active spatial mechanisms, the second treated the problems of the dynamic control of manipulation robots. In contrast to the first two books, where recursive computer-aided me thods for setting robot dynamic equations where described, this mono graph presents a new approach to the formation of robot dynamics. The goal is to achieve the real-time model computation using up-to-date mi crocomputers. The presented concept could be called a numeric-symbolic, or analytic, approach to robot modelling. It will be shown that the generation of analytical robot model may give new excellent possibili ties concerning real-time applications. It is of essential importance in synthesizing the algorithms for nonadaptive and adaptive control of manipulation robots. If should be pointed out that the high computational efficiency has been achieved by off-line computer-aided preparation of robot equations. The parameters of a specified robot must be given in advance. This, af ter each significant variation in robot structure (geometrical and dy namical parameters) ,we must repeat the off-line stage. Thus is why the numerical procedures will always have their place in studying the dy namic properties of robotic systems. This monograph is organized in 5 chapters.

Fundamentals of Robotic Mechanical Systems
Fundamentals of Robotic Mechanical Systems

Author: Jorge Angeles

Publisher: Springer Science & Business Media

Published: 2013-12-09

Total Pages: 610

ISBN-13: 3319018515

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The 4th edition includes updated and additional examples and exercises on the core fundamental concepts of mechanics, robots, and kinematics of serial robots. New images of CAD models and physical robots help to motivate concepts being introduced. Each chapter of the book can be read independently of others as it addresses a seperate issue in robotics.

Robot Motion
Robot Motion

Author: Michael Brady

Publisher: MIT Press

Published: 1982

Total Pages: 618

ISBN-13: 9780262021821

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Dynamics; Feedback control; Trajectory planning; Compliance; Task planning.

Nonlinear Control of Robots and Unmanned Aerial Vehicles
Nonlinear Control of Robots and Unmanned Aerial Vehicles

Author: Ranjan Vepa

Publisher: CRC Press

Published: 2016-10-14

Total Pages: 704

ISBN-13: 1315350300

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Nonlinear Control of Robots and Unmanned Aerial Vehicles: An Integrated Approach presents control and regulation methods that rely upon feedback linearization techniques. Both robot manipulators and UAVs employ operating regimes with large magnitudes of state and control variables, making such an approach vital for their control systems design. Numerous application examples are included to facilitate the art of nonlinear control system design, for both robotic systems and UAVs, in a single unified framework. MATLAB® and Simulink® are integrated to demonstrate the importance of computational methods and systems simulation in this process.

Engineered Biomimicry
Engineered Biomimicry

Author: Ranjan Vepa

Publisher: Elsevier Inc. Chapters

Published: 2013-05-24

Total Pages: 55

ISBN-13: 0128072628

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Some basic features of biomimetic robotics and the technologies that are facilitating their development are discussed in this chapter. The emergence of smart materials and structures, smart sensors and actuators capable of mimicking biological transducers, bio-inspired signal-processing techniques, modeling and control of manipulators resembling biological limbs, and the shape control of flexible systems are the primary areas in which recent technological advances have taken place. Some key applications of these technological developments in the design of morphing airfoils, modeling and control of anthropomorphic manipulators and muscle activation modeling, and control for human limb prosthetic and orthotic applications are discussed. Also discussed, with some typical examples, are the related developments in the application of nonlinear optimal control and estimation, which are fundamental to the success of biomimetic robotics.

Modeling, Identification and Control of Robots
Modeling, Identification and Control of Robots

Author: W. Khalil

Publisher: Butterworth-Heinemann

Published: 2004-07-01

Total Pages: 503

ISBN-13: 0080536611

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Written by two of Europe's leading robotics experts, this book provides the tools for a unified approach to the modelling of robotic manipulators, whatever their mechanical structure. No other publication covers the three fundamental issues of robotics: modelling, identification and control. It covers the development of various mathematical models required for the control and simulation of robots.·World class authority·Unique range of coverage not available in any other book·Provides a complete course on robotic control at an undergraduate and graduate level

Manipulation RobotsDynamics, Control, and Optimization
Manipulation RobotsDynamics, Control, and Optimization

Author: Felix L. Chernousko

Publisher: CRC Press

Published: 1993-11-24

Total Pages: 278

ISBN-13: 9780849344572

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Addresses challenging aspects of robotics research, including the dynamics of robots with elastic parts and optimal control of manipulators. Basics in kinematics, dynamics, drives, and control and sensor systems are discussed. To more efficiently evaluate the elastic compliance of robots and their dynamic accuracy, the authors propose new computer techniques and provide much experimental data. Optimal control methods presented in the book allow robotics engineers to increase the speed and productivity of robotic operations and reduce energy consumption. New developments in robotics covered include pneumatic sensors, adaptive grippers, special robotic systems for measurement and inspection, and wall-climbing robots with technological manipulators. The book will be an important reference for mechanical engineers, electrical engineers, robotics engineers, and researchers in automatic control.