Permanent Magnet and Electromechanical Devices

Materials, Analysis and Applications

Edward P. Furlani

518 pages, parution le 01/09/2001

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Résumé

This book is a comprehensive and self-contained exposition of the theory and methods used in the analysis and design of permanent magnet and electromechanical devices. It contains extensive discussions of several key topics of applied magnetics including the theory of ferromagnetism, a survey of magnetic materials, electromagnetic field theory, magnetostatic analysis, magnetic circuit theory, the design of rare-earth permanent magnet structures, the theory of electromechanical energy conversion, and the design and analysis of electromechanical devices. It can serve as a primary or supplemental text for junior, senior or graduate courses on applied magnetics, permanent magnetism, electromechanical energy conversion, or motion control. This book is a valuable text and reference for researchers, professors, students and engineers involved in such diverse areas as the development or fabrication of magnetic materials, the computation of magnetic fields, the design of magnetic circuits, the analysis of inductive electrical components such as coils and solenoids, the design of permanent magnet devices, and the design and simulation of electromechanical devices such as transducers, actuators and motors. The theoretical presentation is reinforced with numerous illustrations and over sixty solved examples of practical applications.

Contents

Preface

Materials
Introduction
Units
Classification of Materials
Atomic Magnetic Moments
Single electron atoms
Multielectron atoms
Paramagnetism
Ferromagnetism
Magnetostatic Energy
Demagnetization Field
Anisotropy
Magnetocrystalline Anisotropy
Shape Anisotropy
Domains
Hysteresis
Soft Magnetic Materials
Hard Magnetic Materials
Ferrites
Alnico
Samarium-Cobalt
Neodymium-iron-boron
Bonded Magnets
Magnetization
Stability

Review of Maxwell's Equations
Introduction
Maxwell's Equations
Constitutive Relations
Integral Equations
Boundary Conditions
Force and Torque
Potentials
Quasi-static Theory
Static Theory
Magnetostatic Theory
Electrostatic Theory
Summary

Field Analysis
Introduction
Magnetostatic Analysis
Vector Potential
Force and Torque
Maxwell Stress Tensor
Energy
Inductance
The Current Model
The Charge Model
Force
Torque
Magnetic Circuit Analysis
Current Sources
Magnet Sources
Boundary-Value Problems
Cartesian Coordinates
Cylindrical Coordinates
Spherical Coordinates
Method of Images
Finite Element Analysis
Finite Difference Method

Permanent Magnet Applications
Introduction
Magnet Structures
Rectangular Structures
Cylindrical Structures
High Field Structures
Magnetic Latching
Magnetic Suspension
Magnetic Gears
Magnetic Couplings
Magnetic Resonance Imaging
Electrophotography
Magneto-Optical Recording
Free-Electron Lasers

ElectromechanicalDevices
Introduction
Device Basics
Quasi-static Field Theory
Stationary Reference Frame
Moving Reference Frames
Electrical Equations
Stationary Circuits
Moving Coils
Mechanical Equations
Electromechanical Equations
Stationary Circuits
Moving Coils
Energy Analysis
Magnetic Circuit Actuators
Axial-Field Actuators
Resonant Actuators
Magneto-Optical Bias Field Actuator
Linear Actuators
Axial-Field Motors
Stepper Motors
Hybrid Analytical-FEM Analysis
Magnetic MEMS

Vector Analysis
Cartesian Coordinates
Cylindrical Coordinates
Spherical Coordinates
Integrals of Vector Functions
Theorems and Identities
Coordinate Transformations
Green's Function
Systems of Equations
Euler's Method
Improved Euler Method
Runge-Kutta Methods
Units

Caractéristiques techniques

	PAPIER
Éditeur(s)	Academic Press
Auteur(s)	Edward P. Furlani
Parution	01/09/2001
Nb. de pages	518
Format	15,5 x 23,5
Couverture	Relié
Poids	812g
Intérieur	Noir et Blanc
EAN13	9780122699511
ISBN13	978-0-12-269951-1