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Parallel Robots

Mechanics and Control

By Hamid D. Taghirad

CRC Press – 2013 – 533 pages

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  • Add to CartHardback: $149.95
    978-1-46-655576-1
    February 20th 2013

Description

Parallel structures are more effective than serial ones for industrial automation applications that require high precision and stiffness, or a high load capacity relative to robot weight. Although many industrial applications have adopted parallel structures for their design, few textbooks introduce the analysis of such robots in terms of dynamics and control. Filling this gap, Parallel Robots: Mechanics and Control presents a systematic approach to analyze the kinematics, dynamics, and control of parallel robots. It brings together analysis and design tools for engineers and researchers who want to design and implement parallel structures in industry.

Covers Kinematics, Dynamics, and Control in One Volume

The book begins with the representation of motion of robots and the kinematic analysis of parallel manipulators. Moving beyond static positioning, it then examines a systematic approach to performing Jacobian analysis. A special feature of the book is its detailed coverage of the dynamics and control of parallel manipulators. The text examines dynamic analysis using the Newton-Euler method, the principle of virtual work, and the Lagrange formulations. Finally, the book elaborates on the control of parallel robots, considering both motion and force control. It introduces various model-free and model-based controllers and develops robust and adaptive control schemes. It also addresses redundancy resolution schemes in detail.

Analysis and Design Tools to Help You Create Parallel Robots

In each chapter, the author revisits the same case studies to show how the techniques may be applied. The case studies include a planar cable-driven parallel robot, part of a promising new generation of parallel structures that will allow for larger workspaces. The MATLAB® code used for analysis and simulation is available online. Combining the analysis of kinematics and dynamics with methods of designing controllers, this text offers a holistic introduction for anyone interested in designing and implementing parallel robots.

Contents

Introduction

What Is a Robot?

Robot Components

Robot Degrees-of-Freedom

Robot Classification

The Aims and Scope of This Book

Motion Representation

Spatial Motion Representation

Motion of a Rigid Body

Homogeneous Transformations

Problems

Kinematics

Introduction

Loop Closure Method

Kinematic Analysis of a Planar Manipulator

Kinematic Analysis of Shoulder Manipulator

Kinematic Analysis of Stewart–Gough Platform

Problems

Jacobians: Velocities and Static Forces

Introduction

Angular and Linear Velocities

Jacobian Matrices of a Parallel Manipulator

Velocity Loop Closure

Singularity Analysis of Parallel Manipulators

Jacobian Analysis of a Planar Manipulator

Jacobian Analysis of Shoulder Manipulator

Jacobian Analysis of the Stewart–Gough Platform

Static Forces in Parallel Manipulators

Stiffness Analysis of Parallel Manipulators

Problems

Dynamics

Introduction

Dynamics of Rigid Bodies: A Review

Newton–Euler Formulation

Virtual Work Formulation

Lagrange Formulation

Problems

Motion Control

Introduction

Controller Topology

Motion Control in Task Space

Robust and Adaptive Control

Motion Control in Joint Space

Summary of Motion Control Techniques

Redundancy Resolution

Motion Control of a Planar Manipulator

Motion Control of the Stewart–Gough Platform

Problems

Force Control

Introduction

Controller Topology

Stiffness Control

Direct Force Control

Impedance Control

Problems

Appendix: Linear Algebra

Vectors and Matrices

Vector and Matrix Operations

Eigenvalues and Singular Values

Pseudo-Inverse

Kronecker Product

Appendix: Trajectory Planning

Point-to-Point Motion

Specified Path with Via Points

Appendix: Nonlinear Control Review

Dynamical Systems

Stability Definitions

Lyapunov Stability

Krasovskii–Lasalle Theorem

References

Index

Author Bio

Hamid D. Taghirad is currently a professor with the Faculty of Electrical and Computer Engineering, Department of Systems and Control, and the founder of the Advanced Robotics and Automated System (ARAS) at K.N. Toosi University of Technology, Tehran, Iran. He has been involved in numerous robotics industrial projects on the design and implementation of industrial robots, robotic cells, and currently on an industrial cable-driven parallel manipulator. He has also participated in joint international collaborations in the field of robotics. Dr. Taghirad was the founder and a member of the board of the Iranian Society of Mechatronics (ISM) and is currently a member of the board of the Iranian Robotics Society (IRS), editor in chief of Mechatronics Magazine, and a member of the editorial board of the International Journal of Robotics: Theory and Application. He also served as an organizing committee member of many international conferences, including the International Conference on Robotics and Mechatronics (ICRoM). His publications include five books and more than 190 papers in peer-reviewed international journals and conference proceedings.

For more information, see Professor Taghirad’s profile at K.N. Toosi University of Technology.

Name: Parallel Robots: Mechanics and Control (Hardback)CRC Press 
Description: By Hamid D. Taghirad. Parallel structures are more effective than serial ones for industrial automation applications that require high precision and stiffness, or a high load capacity relative to robot weight. Although many industrial applications have adopted parallel...
Categories: Electrical & Electronic Engineering, Robotics, Intelligent Systems, Systems & Controls