Hahn Advanced Computational and Design Techniques in Applied Electromagnetic Systems

Proceedings of the International ISEM Symposium on Advanced Computational and Design Techniques in Applied Electromagnetic Systems, Seoul, Korea, 22-24 June, 1994
1. Auflage 2013
ISBN: 978-1-4832-9056-0
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 766 Seiten, Web PDF

Reihe: Elsevier Studies in Applied Electromagnetics in Materials

This symposium was concerned with advanced computational and design techniques in applied electromagnetic systems including devices and materials. The scope of the proceedings cover a wide variety of topics in applied electromagnetic fields: optimal design techniques and applications, inverse problems, advanced numerical techniques, mechanism and dynamics of new actuators, physics and applications of magnetic levitation, electromagnetic propulsion and superconductivity, modeling and applications of magnetic fluid, plasma and arc discharge, high-frequency field computations, electronic device simulations and magnetic materials.

Autoren/Hrsg.

Hahn, S. -Y.

Inhaltsverzeichnis

1;Front Cover;1
2;Advanced Computational and Design Techniques in Applied Electromagnetic Systems;4
3;Copyright Page;5
4;Table of Contents;8
5;PREFACE;6
6;INTERNATIONAL STEERING COMMITTEE;22
7;LOCAL STEERING COMMITTEE;23
8;ORGANIZING COMMITTEE;23
9;CONTRIBUTORS;24
10;EXHIBITORS;25
11;Part 1: Optimal Design Techniques and
Applications;26
11.1;Chapter 1. Automated optimal design of a permanent magnet excited dc motor with global
evolution strategy and FEM;28
11.1.1;1. ABSTRACT;28
11.1.2;2. INTRODUCTION;28
11.1.3;3. OPTIMISATION METHOD;28
11.1.4;4. FIELD COMPUTATION;30
11.1.5;5. PROBLEM DESCRIPTION AND RESULTS;30
11.1.6;REFERENCES;31
11.2;Chapter 2.
Non-Linear Constrained Optimisation Techniques for Magnetostatic Problems;32
11.2.1;1. INTRODUCTION;32
11.2.2;2. CONSTRAINED QUASI-NEWTON METHODS;33
11.2.3;3. NUMERICAL EXAMPLES;34
11.2.4;4. CONCLUSIONS;35
11.2.5;REFERENCES;35
11.3;Chapter 3. Sensitivity Analysis and Optimization of Chip Layout on Printed
Circuit Board;36
11.3.1;1. INTRODUCTION;36
11.3.2;2. SUBDOMAIN DESIGN SENSITIVITY ANALYSIS;36
11.3.3;3. NUMERICAL EXAMPLES;38
11.3.4;5. CONCLUSION;39
11.3.5;REFERENCES;39
11.4;Chapter 4. The application of case-based reasoning to the initial design of
electromagnetic devices;40
11.4.1;Abstract;40
11.4.2;1. INTRODUCTION;40
11.4.3;2. THE CASE-BASED DESIGN PROCESS;41
11.4.4;3. FEATURE EXTRACTION;41
11.4.5;4. CONCLUSIONS;43
11.4.6;REFERENCES;43
11.5;Chapter 5. 3-D finite element analysis of electromagnetic forces on contact systems in low
voltage circuit breakers;44
11.5.1;1. INTRODUCTION;44
11.5.2;2. METHOD OF ANALYSIS;45
11.5.3;3. ANALYZED MODEL;45
11.5.4;4. RESULTS AND DISCUSSIONS;46
11.5.5;5. CONCLUSIONS;47
11.5.6;REFERENCES;47
11.6;Chapter 6. Investigation of flux density for 3-D electromagnetic force calculation using
Maxwell stress tensor;48
11.6.1;1. INTRODUCTION;48
11.6.2;2. METHOD OF NUMERICAL ANALYSIS;48
11.6.3;3. RESULTS AND DISCUSSION;49
11.6.4;4. CONCLUSIONS;51
11.6.5;REFERENCES;51
11.7;Chapter 7.
Automatic shape design of solenoid valve using finite element method;52
11.7.1;1. INTRODUCTION;52
11.7.2;2. CALCULATION MODEL AND METHOD;53
11.7.3;3. CALCULATION RESULTS;54
11.7.4;4. CONCLUSIONS;55
11.7.5;REFERENCE;55
11.8;Chapter 8. An optimum design and characteristic analysis for a butt-lap-step joint core of amorphous distribution transformer;56
11.8.1;1. INTRODUCTION;56
11.8.2;2. NUMERICAL FORMULATION;57
11.8.3;3. SIMULATION RESULTS;58
11.8.4;4. CONCLUSIONS;59
11.8.5;REFERENCES;59
11.9;Chapter 9.
Optimized Cylindrical Magnetic Shielding Vessels;60
11.9.1;Abstract;60
11.9.2;1. INTRODUCTION;60
11.9.3;2. FORMULATION;60
11.9.4;3. RESULTS AND DISCUSSIONS;62
11.9.5;4. CONCLUSIONS;63
11.9.6;REFERENCES;63
11.10;Chapter 10.
Dew-point measurement in the decarburising of Electrical steels;64
11.10.1;1. Introduction;64
11.10.2;2. Primary system requirements;64
11.10.3;3. Hardware description;65
11.10.4;4. Software description;66
11.10.5;5. Materials testing;66
11.10.6;6. Mirror construction;66
11.10.7;7. Results and discussion;67
11.10.8;8. Conclusions;67
11.10.9;References;67
11.11;Chapter 11.
Genetic algorithms applied to design optimization;68
11.11.1;1. Introduction;68
11.11.2;2. Design Optimization Environment;68
11.11.3;3. Shape Optimization of a Pole Face;69
11.11.4;4. Results;70
11.11.5;5. Conclusion;71
11.11.6;References;71
11.12;Chapter 12. Ground State Configurations of Two-Dimensional Coulomb Gas
with Fractional Charges: A Genetic Optimization Algorithm;72
11.12.1;1. INTRODUCTION;72
11.12.2;2. GENETIC ALGORITHM;73
11.12.3;3. SIMULATION RESULTS;73
11.12.4;4. CONCLUSIONS;75
11.12.5;REFERENCES;75
11.13;Chapter 13. Optimum design of linear induction motor for subway
by neural network and SUMT;76
11.13.1;1. INTRODUCTION;76
11.13.2;2. FINITE ELEMENT ANALYSIS;76
11.13.3;3. SUMT WITH A NEURAL NETWORK;77
11.13.4;4. RESULTS;78
11.13.5;5. CONCLUSION;79
11.13.6;Acknowledgement;79
11.13.7;REFERENCES;79
11.14;Chapter 14. Efficiency Optimized Design of Interior Permanent Magnet
Synchronous Motors Using Simulated Annealing;80
11.14.1;Abstract;80
11.14.2;1. Introduction;80
11.14.3;2. Compensation of Air Gap Flux Density and Inductances;81
11.14.4;3. Efficiency Optimized Design;81
11.14.5;4. Comparison between the Prototype Motor and the Optimized Motor;82
11.14.6;5. Conclusion;83
11.14.7;REFERENCES;83
11.15;Chapter 15. The shape optimization of magnetic deflection system using evolution strategy;84
11.15.1;Abstract;84
11.15.2;1. INTRODUCTION;84
11.15.3;2. THE OPTIMIZATION OF SADDLE TYPE COIL CONFIGURATION;85
11.15.4;3. NUMERICAL EXAMPLE;86
11.15.5;4. CONCULUTION;87
11.15.6;REFERENCES;87
11.16;Chapter 16.
Thermodynamic calculation and optimization of the B-Si phase diagram;88
11.16.1;1. Introduction;88
11.16.2;2. Optimization;88
11.16.3;3. Results;89
11.16.4;ACKNOWLEDGMENT;89
11.16.5;REFERENCES;91
11.17;Chapter 17. An Improved 3-D Edge Finite Element Method for Eddy-Current
Analysis of Induction Furnace Using Sliced Models;92
11.17.1;1. INTRODUCTION;92
11.17.2;2. PROPOSED METHOD;93
11.17.3;3. ANALYZED MODEL;93
11.17.4;4. OBTAINED RESULTS;94
11.17.5;5. CONCLUSIONS;95
11.17.6;REFERENCES;95
11.18;Chapter 18. Optimal shape design of brushless DC motors
using evolution strategy;96
11.18.1;1. INTRODUCTION;96
11.18.2;2. CLASSICAL DESIGN METHOD;97
11.18.3;3. OPTIMIZATION ALGORITHM;97
11.18.4;4. DESIGN EXAMPLE;98
11.18.5;5. CONCLUSION;99
11.18.6;REFERENCES;99
11.19;Chapter 19.
Core Shape Design of Electrical Devices for Iron Loss Reduction;100
11.19.1;Abstract;100
11.19.2;1. INTRODUCTION;100
11.19.3;2. SENSITIVITY ANALYSIS;100
11.19.4;3. NUMERICAL EXAMPLES;102
11.19.5;4. CONCLUSION;103
11.19.6;ACKNOWLEDGEMENT;103
11.19.7;REFERENCES;103
11.20;Chapter 20. Topological Optimization for Matched Waveguide Load
in H-plane;104
11.20.1;1. INTRODUCTION;104
11.20.2;2. FINITE ELEMENT FORMULATION;104
11.20.3;3. SENSITIVITY ANALYSIS;106
11.20.4;4. NUMERICAL EXAMPLES;106
11.20.5;5. CONCLUSION;107
11.20.6;ACKNOWLEDGEMENT;107
11.20.7;REFERENCES;107
11.21;Chapter 21. Applications of FEM Eletiic-Field Computation Program to The Optimal Design of GIS and GCB;108
11.21.1;Abstract;108
11.21.2;1. Introduction;108
11.21.3;2. Insulation design using electric-field analysis program for GIS;109
11.21.4;3. CONCLUSION;111
11.21.5;REFERENCES;111
11.22;Chapter 22. An Effective Magnetic Circuit Technique for Reducing
Distortion in Loudspeaker Sound Quality;112
11.22.1;Abstract;112
11.22.2;1. INTRODUCTION;112
11.22.3;2. EQUILIBRIUM EQUATIONS;113
11.22.4;3. ACTUATING FORCE OF VOICE COIL;113
11.22.5;4. COMPENSATION COIL;114
11.22.6;5. CONCLUSION;114
11.22.7;6. REFERENCES;115
11.23;Chapter 23. The performance analysis of separate-type
transformers by 3-D FEM;116
11.23.1;1. INTRODUCTION;116
11.23.2;2. ANALYTICAL MODEL;116
11.23.3;3. PERFORMANCE ANALYSIS;117
11.23.4;4. CONCLUSIONS;119
11.23.5;REFERENCE;119
12;Part 2:
Inverse Problems;120
12.1;Chapter 24. Application of wavelet analysis to an inverse problem in eddy current
testing;122
12.1.1;1. INTRODUCTION;122
12.1.2;2. WAVELET APPROXIMATION;122
12.1.3;3. INVERSE PROBLEM FORT;123
12.1.4;4. CHARACTERIZATION OF CRACK;124
12.1.5;5. NUMERICAL RESULTS;124
12.1.6;6. CONCLUSIONS;125
12.1.7;REFERENCES;125
12.2;Chapter 25.
Nondestructive evaluation inverse problems;126
12.2.1;1. ELLIPTIC NDE PHENOMENA;126
12.2.2;2. PARABOLIC NDE PHENOMENA;127
12.2.3;3. HYPERBOLIC NDE PHENOMENA;129
12.2.4;4. CONCLUDING REMARKS;129
12.2.5;REFERENCES;129
12.3;Chapter 26.
Noninvasive imaging of cardiac activation;130
12.3.1;1. THEORY;130
12.3.2;2. METHODS;131
12.3.3;3. RESULTS;132
12.3.4;4. DISCUSSION;133
12.3.5;REFERENCES;133
12.4;Chapter 27.
Inverse Analysis of a Potential Problem by Symbolic Computation;134
12.4.1;Abstract;134
12.4.2;1. Introduction;134
12.4.3;2. Charge Simulation Method;134
12.4.4;3. Example;135
12.4.5;4. Concluding Remarks;136
12.4.6;References;136
12.5;Chapter 28.
Optimization approach to image reconstruction;138
12.5.1;1. INTRODUCTION;138
12.5.2;2. MATHEMATICAL FORMULATION;138
12.5.3;3. OBJECTIVE FUNCTION DEFINITION;139
12.5.4;4. SENSITIVITY ANALYSIS;140
12.5.5;5. RESULTS OF RECONSTRUCTION;140
12.5.6;6. CONCLUSION;140
12.5.7;REFERENCES;141
12.6;Chapter 29. Defect identification in magnetic materials
by using genetic algorithm;142
12.6.1;1. INTRODUCTION;142
12.6.2;2. HYBRID METHOD;142
12.6.3;3. EXAMPLES AND DISCUSSION;144
12.6.4;4. CONCLUSION;145
12.6.5;REFERENCES;145
12.7;Chapter 30.
Effect of Thermal Fatigue on Barkhausen Noise in rotational field;146
12.7.1;1. INTRODUCTION;146
12.7.2;2. EXPERIMENTAL METHOD;147
12.7.3;3. Results and discussions;147
12.7.4;4. CONCLUSION;148
12.7.5;REFERENCES;148
12.8;Chapter 31. An improved method of estimation for residual magnetization integrating
BEM and magnetic field measurement;150
12.8.1;Abstract;150
12.8.2;1. INTRODUCTION;150
12.8.3;2. FORMULATION OF METHOD;150
12.8.4;3. ANALYSIS RESULTS AND DISCUSSION;152
12.8.5;4. CONCLUSION;153
12.8.6;REFERENCES;153
12.9;Chapter 32. Magnetic field analysis of eddy current testing with impulse response
by boundary element method;154
12.9.1;1. INTRODUCTION;154
12.9.2;2. FORMULATION;155
12.9.3;3. RESULTS AND DISCUSSION;156
12.9.4;4. CONCLUSION;157
12.9.5;REFERENCES;157
12.10;Chapter 33. 3-D eddy current analysis for crack model on ECT
using A and . iteration method;158
12.10.1;Abstract;158
12.10.2;1. INTRODUCTION;158
12.10.3;2. ANALYSIS METHOD;158
12.10.4;3. ANALYSIS RESULTS AND VERIFICATION BY EXPERIMENTS;159
12.10.5;4. CONCLUSIONS;161
12.10.6;REFERENCES;161
12.11;Chapter 34.
Nearly real-time crack sizing using measured impedance data;162
12.11.1;Abstract;162
12.11.2;1. INTRODUCTION;162
12.11.3;2. MEASUREMENT PROCEDURE;162
12.11.4;2. SIZING THE CRACKS;164
12.11.5;3. EXAMPLES FOR CRACK SIZING USING MEASURED IMPEDANCE DATA;164
12.11.6;4. CONCLUSIONS;165
12.11.7;REFERENCES;165
12.12;Chapter 35.
Magnetic Sensor Using Progressive Magnetic Flux;166
12.12.1;Abstract;166
12.12.2;1. INTRODUCTION;166
12.12.3;2. Magnetic sensor using progressive magnetic flux;167
12.12.4;3. Analytical result;167
12.12.5;4. Conclusions;169
12.12.6;REFERENCES;169
12.13;Chapter 36.
AN INVERSE APPROACH TO OPTIMAL EXCITING COE DESIGN;170
12.13.1;Abstract;170
12.13.2;1. INTRODUCTION;170
12.13.3;2. THE OPTIMAL EXCITING COIL DESIGN;170
12.13.4;3. CONCLUSION;173
12.13.5;REFERENCES;173
12.14;Chapter 37. Reconstruction of underground dielectric objects using the conjugate gradient
method;174
12.14.1;1. INTRODUCTION;174
12.14.2;2. FORMULATION OF THE PROBLEM;174
12.14.3;3. NUMERICAL RESULTS;176
12.14.4;4. CONCLUSION;177
12.14.5;REFERENCES;177
12.15;Chapter 38.
Rough surface inverse scattering within the Kirchhoff approximation;178
12.15.1;1. INTRODUCTION;178
12.15.2;2. PROBLEM FORMULATION;178
12.15.3;3. SIMULATED RESULT;180
12.15.4;4. CONCLUSION;181
12.15.5;REFERENCES;181
12.16;Chapter 39.
Upgrade of Micro Eddy Current Testing;182
12.16.1;1. INTRODUCTION;182
12.16.2;2. PRINCIPLE;182
12.16.3;3. EXPERIMENT;183
12.16.4;4. CALCULATION;185
12.16.5;5. CONCLUSION;185
12.16.6;REFERENCES;185
12.17;Chapter 40. The application of artificial neural network to defect
characterization in eddy current NDT;186
12.17.1;1. INTRODUCTION;186
12.17.2;2. EDDY CURRENT TESTING;186
12.17.3;3. DEFECT CHARACTERIZATION USING ANN;188
12.17.4;4. NUMERICAL EXAMPLE;188
12.17.5;5. CONCLUSION;188
12.17.6;REFERENCES;189
12.18;Chapter 41. An Iterative Inversion Method for a Perfectly Conducting Cylinder
on Angular Spectral Domain;190
12.18.1;Abstract;190
12.18.2;1. Introduction;190
12.18.3;2. Angular Spectrum;190
12.18.4;3. Approximate shape and center;192
12.18.5;4. Numerical Results;192
12.18.6;References;193
12.19;Chapter 42. Automatic ECT Data Analysis of Steam Generator Tubings
by Using Neural Network;194
12.19.1;1. INTRODUCTION;194
12.19.2;2. DATA - ACQUISITION;194
12.19.3;3. RESULTS;195
12.19.4;4. CONCLUSION;197
12.19.5;REFERENCES;197
12.20;Chapter 43. Defect Characterization in Eddy Current NDT by (µ+.) Evolution
Strategy;198
12.20.1;Abstract;198
12.20.2;1. INTRODUCTION;198
12.20.3;2. FINITE ELEMENT FORMULATION;198
12.20.4;3. EVOLUTION STRATEGY;199
12.20.5;4. NUMERICAL EXAMPLES;200
12.20.6;5. CONCLUSION;200
12.20.7;ACKNOWLEDGEMENT;201
12.20.8;REFERENCES;201
12.21;Chapter 44.
Application of Kaczmarz Algorithm in Electromagnetic Field Inverse Problem;202
12.21.1;1. INTRODUCTION;202
12.21.2;2. THE KACZMARZ ALGORITHM;202
12.21.3;3. NUMERICAL EXPERIMENTS;204
12.21.4;4. APPLICATION OF KACZMARZ ALGORITHM;204
12.21.5;5. CONCLUSIONS;205
12.21.6;REFERENCES;205
12.22;Chapter 45.
Effects of High AC Magnetic Field Stimulus to the Nematode;206
12.22.1;1. Introduction;206
12.22.2;2. Magnetic field generator and the characteristics of the nematode;206
12.22.3;3. Behavioral effects when exposed
to an ac magnetic field;207
12.22.4;4. Effect on eating behavior due to
exposure to ac magnetic fields;208
12.22.5;5. Conclusions;209
12.22.6;REFERENCES;209
12.23;Chapter 46. Optimal electrode configuration in impedance cardiography by
a 3-D finite element model;210
12.23.1;1. INTRODUCTION;210
12.23.2;2. MODEL DESCRIPTION;211
12.23.3;3. RESULTS;212
12.23.4;4. CONCLUSION;213
12.23.5;REFERENCES;213
12.24;Chapter 47.
Impedance imaging using internal current density measured by NMR;214
12.24.1;1. INTRODUCTION;214
12.24.2;2. NMR IMAGING;214
12.24.3;3. COMPUTATION OF INTERNAL CURRENT DENSITY;215
12.24.4;4. IMAGE RECONSTRUCTION;215
12.24.5;5. CONCLUSION;217
12.24.6;REFERENCES;217
13;Part 3:
Advanced Numerical Techniques;218
13.1;Chapter 48.
Recent trends in computational electromagnetics for analysis and design;220
13.1.1;INTRODUCTION;220
13.1.2;1. SYSTEM EVOLUTION APPROACH;220
13.1.3;CONCLUSION;223
13.1.4;REFERENCES;223
13.2;Chapter 49. Aspects of classical and physical approaches to applications of electromagnetic
field solutions;224
13.2.1;ABSTRACT;224
13.2.2;1. INTRODUCTION;224
13.2.3;2. DOMAIN STRUCTURES AND LOSSES;225
13.2.4;3. COMBINATION OF CLASSICAL AND PHYSICAL APPROACHES;226
13.2.5;REFERENCES;227
13.3;Chapter 50. On the Application of Special Fundamental Solutions to Symmetric
Unbounded Problems with the BEM;228
13.3.1;1. INTRODUCTION;228
13.3.2;2. BEM FOR ELECTROMAGNETIC FIELD PROBLEMS;228
13.3.3;3. SPECIAL FUNDAMENTAL SOLUTIONS TO FULLY USE
SYMMETRIES;229
13.3.4;4. NUMERICAL EXAMPLES;229
13.3.5;5. CONCLUSIONS;231
13.3.6;REFERENCES;231
13.4;Chapter 51. Determination of suitable feature parameters
using weighting coefficients on neural network;232
13.4.1;Abstract;232
13.4.2;1. INTRODUCTION;232
13.4.3;2. NETWORK MODEL;232
13.4.4;3. EXPERIMENTAL EVALUATION OF THE PARAMETERS;234
13.4.5;4. CONCLUSIONS;235
13.4.6;5. REFERENCES;235
13.5;Chapter 52. T-O finite element analysis of 3D nonlinear transient eddy current problems;236
13.5.1;1. METHOD;236
13.5.2;2. NUMERICAL RESULTS;237
13.5.3;3. CONCLUSIONS;238
13.5.4;REFERENCES;238
13.6;Chapter 53.
An optimal load distribution algorithm for elliptic solver;240
13.6.1;1. INTRODUCTION;240
13.6.2;2. ALLOCATION OF EQUALLY PARTITIONED DATA;241
13.6.3;3. CONCLUSION;243
13.6.4;REFERENCES;243
13.7;Chapter 54.
Multiple Fourier transform method on an SIMD computer;244
13.7.1;1. INTRODUCTION;244
13.7.2;2. MATHEMATICAL BACKGROUND;244
13.7.3;3. IMPLEMENTATION ON MP-2;245
13.7.4;REFERENCES;247
13.8;Chapter 55. Class network design in object-oriented programming
for three-dimensional finite element analysis;248
13.8.1;Abstract;248
13.8.2;1. MERITS OF OOP;248
13.8.3;2. DESIGN OF CLASS AND OBJECT NETWORKS;249
13.8.4;3. CLASS SET FOR 3-D ELECTROMAGNETIC ANALYSIS;249
13.8.5;4. CLASS AND OBJECT NETWORK FOR FINITE ELEMENT ANALYSIS;250
13.8.6;5. CONCLUSION;251
13.8.7;REFERENCES;251
13.9;Chapter 56. Effective 3D finite element modeling of eddy-current perturbation due
to defects in conducting materials;252
13.9.1;1. INTRODUCTION;252
13.9.2;2. CONCEPT OF FLAW-FIELD CALCULATION;252
13.9.3;3. RESULTS;253
13.9.4;4. CONCLUSION;253
13.9.5;REFERENCES;254
13.10;Chapter 57. A NEW FORMULATION BASED ON SCALAR MAGNETIC
POTENTIAL AND SURFACE MAGNETIC CHARGE DISTRIBUTION;256
13.10.1;ABSTRACT;256
13.10.2;1. INTRODUCTION;256
13.10.3;2. MATHEMATICAL FORMULATION BASED ON FEM;256
13.10.4;3. CASE STUDY;258
13.10.5;4. CONCLUSION;259
13.10.6;REFERENCES;259
13.11;Chapter 58. Three-dimensional analysis of eddy current and temperature distributions
in straight-type cold crucible;260
13.11.1;Abstract;260
13.11.2;1. INTRODUCTION;260
13.11.3;2. METHOD;260
13.11.4;3. RESULTS AND DISCUSSION;262
13.11.5;4. CONCLUSION;263
13.11.6;REFERENCES;263
13.12;Chapter 59. 3-D eddy current computation using surface impedance
method considering edge effect;264
13.12.1;Abstract;264
13.12.2;1. INTRODUCTION;264
13.12.3;2. BOUNDARY ELEMENT FORMULATION;264
13.12.4;3. SURFACE IMPEDANCE FORMULATION;265
13.12.5;4. CONCLUSIONS;267
13.12.6;REFERENCES;267
13.13;Chapter 60.
Teaching of computational electromagnetics in an undergraduate course;268
13.13.1;1. INTRODUCTION;268
13.13.2;2. SUBJECT CONCEPT;268
13.13.3;3. LABORATORY;269
13.13.4;4. TUTORIAL EXAMPLE;269
13.13.5;5. CONCLUSIONS;271
13.13.6;REFERENCES;271
13.14;Chapter 61. Heat conduction and magnetic field analysis of
induction heating problems;272
13.14.1;1. INTRODUCTION;272
13.14.2;2. MODEL AND ITS EQUIVALENT CIRCUIT;272
13.14.3;3. FUNDAMENTAL EQUATIONS;273
13.14.4;4. RESULTS AND DISCUSSION;274
13.14.5;5. CONCLUSION;275
13.14.6;REFERENCES;275
13.15;CHAPTER 62. IRON LOSS CALCULATION
IN AN AMORPHOUS TRANSFORMER;276
13.15.1;1. INTRODUCTION;276
13.15.2;2. THE ANALYSIS OF IRON LOSS;276
13.15.3;3. CONCLUSION;279
13.15.4;REFERENCES;279
13.16;CHAPTER 63.
Parallel sparse linear system on a distributed memory model;280
13.16.1;1. Introduction;280
13.16.2;2. Parallel Implementation;281
13.16.3;3. Performance Analysis;282
13.16.4;4. Conclusion;283
13.16.5;REFERENCES;283
13.17;CHAPTER 64. Effect of gauge condition for edge element on
convergence characteristic of ICCG method;284
13.17.1;1. INTRODUCTION;284
13.17.2;2. METHOD FOR IMPOSING GAUGE CONDITION;284
13.17.3;3. EFFECT OF NUMBER OF SPECIFIED EDGES ON
CONVERGENCE CHARACTERISTICS OF ICCG METHOD;286
13.17.4;4. CONCLUSIONS;287
13.17.5;REFERENCES;287
14;Part 4: Mechanism and Dynamics of
New Actuators;288
14.1;Chapter 65. Magnetic field analysis of anisotropic problem
by finite element method;290
14.1.1;1. INTRODUCTION;290
14.1.2;2. PROBLEMS OF CONVENTIONAL METHOD;290
14.1.3;3. ANALYTICAL METHOD FOR ANISOTROPIC PROBLEM;291
14.1.4;4. ANALYTICAL RESULTS OF ANISOTROPIC PROBLEM;293
14.1.5;5. CONCLUSIONS;293
14.1.6;REFERENCES;293
14.2;Chapter 66.
Basic study of the driving mechanism of an ultrasonic motor;294
14.2.1;Abstract;294
14.2.2;1 Introduction;294
14.2.3;2 Theoretical Analysis;294
14.2.4;3 The elastic contact problem
between stator and slider;296
14.2.5;4 Conclusion;297
14.2.6;References;297
14.3;Chapter 67. A numerical formulation for coupled electro-thermo-elastic
interactions in piezoelectric materials;298
14.3.1;1. INTRODUCTION;298
14.3.2;2. GOVERNING EQUATIONS;298
14.3.3;3. BOUNDARY INTEGRAL FORMULATION;299
14.3.4;4. FUNDAMENTAL SOLUTION;300
14.3.5;5. SPLINE BOUNDARY ELEMENT METHOD;300
14.3.6;6. NUMERICAL EXAMPLES AND CONCLUDING REMARKS;301
14.3.7;REFERENCES;301
14.4;Chapter 68. Modelling of Miniature Finger Driven by Piezoceramic Stacked
Actuator;302
14.4.1;1. INTRODUCTION;302
14.4.2;2. MODELLING AND ANALYSIS;303
14.4.3;3. SIMULATION AND EXPERIMENTAL RESULTS;304
14.4.4;4. CONCLUSIONS;305
14.4.5;REFERENCES;305
14.5;Chapter 69. DEVELOPMENT OF FLAT INDUCTION MOTOR;306
14.5.1;ABSTRACT;306
14.5.2;1. INTRODUCTION;306
14.5.3;2. FLAT INDUCTION MOTOR;307
14.5.4;3. CONCLUSION;309
14.5.5;REFERENCES;309
14.6;Chapter 70.
FINITE ELEMENT ANALYSIS OF A CANNED MOTOR;310
14.6.1;1. INTRODUCTION;310
14.6.2;2. CONSIDERATION OF INDUCTION PHENOMENA OF THE CAN;311
14.6.3;3. 2D FINITE ELEMENT METHOD COMBINED WITH 3D METHOD;312
14.6.4;4. RESULT;313
14.6.5;5. CONCLUSION;313
14.6.6;REFERENCES;313
14.7;Chapter 71. The Analysis of the Characteristics of a Hybrid-type
Double-sided Linear Pulse Motor;314
14.7.1;1.INTRODUCTION;314
14.7.2;2. CONFIGURATION AND EQUIVALENT MAGNETIC CIRCUIT OF A HYBRID DLPM;314
14.7.3;3. THE CALCULATION OF THE STATIC THRUST FROM COENERGY;315
14.7.4;4. RESULTS;316
14.7.5;5.CONCLUSIONS;317
14.7.6;REFERENCES;317
14.8;Chapter 72. The Design and Characteristic Analysis
of a Transverse Flux Linear Induction Motor;318
14.8.1;1.INTRODUCTION;318
14.8.2;2.ANALYSIS MODEL AND CHARACTERISTIC EQUATIONS;318
14.8.3;3.TFLIM ESIGN AND EXPERIMENTAL RESULTS;320
14.8.4;4.CONCLUSIONS;321
14.8.5;REFERENCES;321
14.9;Chapter 73.
Reduction of thrust ripple in Linear DC Motor;322
14.9.1;I.
INTRODUCTION;322
14.9.2;2. SCHEME OF LDM AND PRINCIPLE OF THRUST;322
14.9.3;3. REDUCTION OF THRUST RIPPLE;323
14.9.4;4. DRIVING CIRCUIT;324
14.9.5;5. RESULTS;324
14.9.6;6. CONCLUSION;325
14.9.7;REFERENCES;325
14.10;Chapter 74. Geometric constraints on planar microstructures and their influence
on the dynamics of resonant microactuators;326
14.10.1;1. INTRODUCTION;326
14.10.2;2. GEOMETRIC CONSTRAINTS;326
14.10.3;3. POLYSILICON RESONANT MICROACTUATORS;327
14.10.4;4. RESULTS AND DISCUSSION;328
14.10.5;5. CONCLUSIONS;329
14.10.6;REFERENCES;329
14.11;Chapter 75. The Characteristics of the Single-sided Linear Pulse Motor
Using the Finite Element Method and Measurement System;330
14.11.1;ABSTRACT;330
14.11.2;1. INTRODUCTION;330
14.11.3;2. STRUCTURE AND FEATURE OF PROTOTYPE LPM;330
14.11.4;3. FINITE ELEMENT ANALYSIS;331
14.11.5;4. MEASUREMENT SYSTEM AND EXPERIMENTAL RESULTS;332
14.11.6;5. CONCLUSIONS;333
14.11.7;REFERENCES;333
14.12;Chapter 76. Electric field actuator analysis using coupled
electromagnetic and structural finite elements;334
14.12.1;Abstract;334
14.12.2;1. INTRODUCTION;334
14.12.3;2. COUPLED ELECTROMAGNETIC AND STRUCTURAL FINITE ELEMENTS;334
14.12.4;3. ANALYSIS OF A THREE-PLATE CAPACITIVE ACCELEROMETER;335
14.12.5;4. ANALYSIS OF A PIVOTING ELECTRODE MICROACTUATOR;336
14.12.6;5. CONCLUSIONS;337
14.12.7;REFERENCES;337
14.13;Chapter 77. Practical analysis of permanent magnet type stepping motor using
2-dimensional finite element method;338
14.13.1;Abstract;338
14.13.2;1. INTRODUCTION;338
14.13.3;2. STATIC CHARACTERISTICS;338
14.13.4;3. DYNAMIC CHARACTERISTICS;340
14.13.5;4. CONCLUSION;341
14.13.6;REFERENCES;341
14.14;Chapter 78.
A Scanning Linear Actuator;342
14.14.1;ABSTRACT;342
14.14.2;1. INTRODUCTION;342
14.14.3;2.
DESIGN ASPECTS;342
14.14.4;3. MODELLING
APPROACH;342
14.14.5;4. SIMULATION RESULTS;344
14.14.6;REFERENCES;345
14.15;Chapter 79.
The Magneto-Dynamics of an Impact Print Actuator;346
14.15.1;1. INTRODUCTION;346
14.15.2;2. METHODS;347
14.15.3;3. MAGNETIC MATERIAL EFFECTS;348
14.15.4;4. RESULTS;349
14.15.5;4. CONCLUSIONS;349
14.15.6;REFERENCES;349
14.16;Chapter 80.
Optimization of electromechanical coupling efficiency of piezoelements;350
14.16.1;1. INTRODUCTION;350
14.16.2;2. EMCC OF THE CIRCULAR PLATE;351
14.16.3;3. EMCC OF THE CYLINDRICAL SHELL;353
14.16.4;REFERENCES;353
14.17;Chapter 81. Characterization of higher harmonic frequency components in noise and vibrations
generated by inverter-fed three-phase induction motors;354
14.17.1;ABSTRACT;354
14.17.2;1. INTRODUCTION;354
14.17.3;2. MAGNETIC FLUX DENSITY WAVES;355
14.17.4;3. ELECTROMAGNETIC FORCE WAVES;356
14.17.5;4. SOURCE IDENTIFICATION OF NOISE AND VIBRATIONS;356
14.17.6;5. CONCLUSIONS;357
14.17.7;REFERENCES;357
14.18;Chapter 82. Chaotic Vibration and Its Control of a Cantilever Beam
Subjected to Magnetic Force;358
14.18.1;Abstract;358
14.18.2;1. INTRODUCTION;358
14.18.3;2. PHYSICAL MODEL;358
14.18.4;3. CHAOTIC RESPONSE;359
14.18.5;4. FEADBACK LINEARIZATION;360
14.18.6;5. EXPERIMENTAL REALIZATION OF CONTROL;361
14.18.7;6. CONCLUSIONS;361
14.18.8;7. REFERENCES;361
14.19;Chapter 83.
Relaxation of a wire oscillation in a system of wire and plate electrodes;362
14.19.1;Abstract;362
14.19.2;1 Introduction;362
14.19.3;2 Theoretical Analysis;363
14.19.4;3 Experiment;364
14.19.5;4 Discussion;364
14.19.6;5 Conclusion;365
14.19.7;Reference;365
14.20;Chapter 84.
Performance of Screw-like Piezoelectric Actuator;366
14.20.1;1. INTRODUCTION;366
14.20.2;2. EXPERIMENTS;366
14.20.3;3. RESULTS AND DISCUSSION;368
14.20.4;4. CONCLUSION;369
14.20.5;REFERENCES;369
14.21;Chapter 85. The Analysis on The Performance Characteristics for Design of a
Linear Variable Differential Transformer(LVDT);370
14.21.1;1. Introduction;370
14.21.2;2. The proposing LVDT and Field Model;370
14.21.3;3. Result and Experiments;372
14.21.4;4. C0NCLUTION;373
14.21.5;REFERENCE;373
14.22;Chapter 86. Active Control of Structural Vibration Using
Linear Oscillating Actuator (LOA);374
14.22.1;1. INTRODUCTION;374
14.22.2;2. STRUCTURE OF LOA;374
14.22.3;3. CALCULATION OF THE FLUX DENSITY AND THE RESULTED FORCE;375
14.22.4;4. APPLICATION TO THE STRUCTURAL VIBRATION CONTROL;376
14.22.5;5. CONCLUSION;377
14.22.6;REFERENCE;377
14.23;Chapter 87. Static and Dynamic Vibration Analysis of the Stator in
Piezoelectric Motor by 3-D FEM;378
14.23.1;1. INTRODUCTION;378
14.23.2;2. FINITE ELEMENT ANALYSIS OF STATOR;378
14.23.3;3. RESULTS AND DISCUSSION;379
14.23.4;4. CONCLUSION;381
14.23.5;REFERENCES;381
14.24;Chapter 88.
Equivalent Circuit of Traveling Wave Type Ultrasonic Motor;382
14.24.1;1. INTRODUCTION;382
14.24.2;2. STRUCTURE OF THE ULTRASONIC MOTOR;382
14.24.3;3. EQUIVALENT CIRCUIT;383
14.24.4;4. EXPERIMENTAL RESULTS ON PERFORMANCE OF THE MOTOR;384
14.24.5;5. CALCULATION RESULTS;384
14.24.6;REFERENCES;385
15;Part 5: Physics and Applications of Magnetic Levitation, Electromagnetic Propulsion and Superconductivity;386
15.1;Chapter 89. STUDY OF A LINEAR ACTUATOR WITH LADDER SHAPED HIGH Tc
SUPERCONDUCTING FILM;388
15.1.1;1. INTRODUCTION;388
15.1.2;2. PRINCIPLE OF THE ACTUATOR;388
15.1.3;3. EXPERIMENT;388
15.1.4;4. ANALYSIS OF ELECTROMAGNETIC FORCE;390
15.1.5;5. CONCLUSIONS;391
15.1.6;REFERENCES;391
15.2;Chapter 90. Analysis of superconducting coil current in a linear synchronous
motor for high-speed maglev transport systems;392
15.2.1;1. Introduction;392
15.2.2;2. Analysis o f persistent current;392
15.2.3;3.Persistent current characteristics;393
15.2.4;4. Electromagnetic forces based on constant flux mode analysis;394
15.2.5;5. Conclusions;394
15.2.6;References;394
15.3;Chapter 91. 3D analysis offerees in the shields of SC coils in EDS-MAGLEV transport
systems;396
15.3.1;1. INTRODUCTION;396
15.3.2;2. OUTLINE OF THE METHOD;396
15.3.3;3. EXAMPLE OF APPLICATION;397
15.3.4;4. CONCLUSIONS;399
15.3.5;REFERENCES;399
15.4;Chapter 92. Numerical evaluation of a.c. losses in superconductor
by introducing twisted coordinates;400
15.4.1;1. INTRODUCTION;400
15.4.2;2. FORMULATION;400
15.4.3;3. NUMERICAL RESULTS;402
15.4.4;4. CONCLUSIONS;402
15.4.5;REFERENCES;403
15.5;Chapter 93.
Simulation and experimentation of levitation-melting method;404
15.5.1;1. INTRODUCTION;404
15.5.2;2. DEVICES AND EXPERIMENT OF LEVITATION HEATING;404
15.5.3;3. SIMULATION OF LEVITATION MOVING;406
15.5.4;4. CONCLUSIONS;407
15.5.5;REFERENCES;407
15.6;Chapter 94.
Magnetic Field Analysis of a High Tc Superconducting Hybrid Magnet;408
15.6.1;1. INTRODUCTION;408
15.6.2;2. FORMULATIONS;409
15.6.3;3. RESULTS;409
15.6.4;4. CONCLUSION;411
15.6.5;REFERENCES;411
15.7;Chapter 95. Numerical analysis of restoring and levitation forces in high Tc
superconducting lévitation system;412
15.7.1;1. INTRODUCTION;412
15.7.2;2. NUMERICAL METHOD;413
15.7.3;3. HORIZONTAL STABILITY IN SUPERCONDUCTING LEVITATION;413
15.7.4;4. OPTIMIZATION OF FLYWHEEL CONFIGURATION;414
15.7.5;5. CONCLUSION;415
15.7.6;6. ACKNOWLEDGEMENTS;415
15.7.7;REFERENCES;415
15.8;Chapter 96. Dynamics Simulations of Controlled-PM LSM Maglev Carrier,
Taking into Account Six Degrees of Freedom;416
15.8.1;1. INTRODUCTION;416
15.8.2;2 . EQUATIONS OF MOTION AND CONTROL;417
15.8.3;3 . NUMERICAL EXPERIMENTS;418
15.8.4;4. CONCLUSIONS;418
15.8.5;REFERENCES;418
15.9;Chapter 97. 3-D FEM Analysis of Guidance and Levitation Forces
in Controlled-PM LSM Maglev Carrier;420
15.9.1;1. INTRODUCTION;420
15.9.2;2. ANALYSIS MODEL;421
15.9.3;3. MATHEMATICAL FORMULATION;421
15.9.4;4. ANALYSIS RESULTS AND DISCUSSION;422
15.9.5;5. CONCLUSION;423
15.9.6;REFERENCE;423
15.10;Chapter 98. Magnetic property observation of high temperature superconducting bulk
material by magnetic flux distribution and flux creep measurement;424
15.10.1;Abstract;424
15.10.2;1.INTRODUCTION;424
15.10.3;2.EXPERIMENTAL METHOD;424
15.10.4;3.EXPERIMENTAL RESULTS AND DISCUSSIONS;425
15.10.5;4.CONCLUSION;427
15.10.6;REFERENCES;427
15.11;Chapter 99. Physics, Numerical Analysis and Experiment for A.C. Magnetic Property of High Tc Superconducting Levitation;428
15.11.1;1. INTRODUCTION;428
15.11.2;2. MODELING OF HIGH Tc SUPERCONDUCTOR;428
15.11.3;3 EXPERIMENT;429
15.11.4;4. NUMERICAL ANALYSIS;430
15.11.5;4. CONCLUSION;431
15.11.6;REFERENCES;431
15.12;Chapter 100. Dynamic simulation of electric machines coupled to external circuits
using Finite Elements;432
15.12.1;1 INTRODUCTION;432
15.12.2;2 2D FINITE ELEMENTS;432
15.12.3;3 CIRCUIT CONNECTIONS;433
15.12.4;4 THE SLIDING INTERFACE;433
15.12.5;5 DYNAMIC MODELLING OF AN SRM;434
15.12.6;6 CONCLUSION;434
15.12.7;REFERENCES;435
15.13;Chapter 101. Direct problem approach to electromagnetic levitation melting;436
15.13.1;1. FORMULATION OF THE DIRECT PROBLEM APPROACH;436
15.13.2;2. COMPUTED RESULTS OF THE SHAPE OF THE FREE SURFACE;439
15.13.3;3. CONCLUSIONS;439
15.13.4;REFERENCES;439
15.14;Chapter 102. The improvement of the characteristics
in tubular linear induction motor;440
15.14.1;1. INTRODUCTION;440
15.14.2;2. REVISED WINDING METHOD;440
15.14.3;3. ANALYSIS OF THE CHARACTERISTICS;441
15.14.4;4. RESULTS;442
15.14.5;5. CONCLUSION;443
15.14.6;REFERENCES;443
15.15;Chapter 103.
Minimizing the end effect of single-sided linear induction motors;444
15.15.1;I. INTRODUCTION;444
15.15.2;2.THE CHARACTERISTICS OF END EFFECT;444
15.15.3;3.OPTIMIZATION;445
15.15.4;4.RESULTS AND SIMULATION;446
15.15.5;5.CONCLUSION;447
15.15.6;REFERENCES;447
15.16;Chapter 104. Characteristics analysis of moving-secondary SLIM
by the parameter identification from the lock test;448
15.16.1;1. INTRODUCTION;448
15.16.2;2. CONSTRUCTION OF PILOT MACHINE;448
15.16.3;3. EXPERIMENTS;449
15.16.4;4. RESULTS;450
15.16.5;5. CONCLUSIONS;451
15.16.6;REFERENCES;451
15.17;Chapter 105. Dynamic characterictics analysis by neural network and FEM
in moving secondary type LIM;452
15.17.1;1. INTRODUCTION;452
15.17.2;2. THRUST CALCULATION USING THE FEM;453
15.17.3;3. THRUST PREDICTION BY THE NEURAL NETWORK;454
15.17.4;4. DYNAMIC CHARACTERISTICS ANALYSIS;454
15.17.5;5. RESULTS;455
15.17.6;6. CONCLUSION;455
15.17.7;REFERENCES;455
15.18;Chapter 106. The dynamic braking characteristics of the vertical linear synchronous motor;456
15.18.1;ABSTRACT;456
15.18.2;1. INTRODUCTION;456
15.18.3;2. THE VERTICAL LSM EXPERIMENTAL EQUIPMENT;457
15.18.4;3. THE DYNAMIC BRAKING CHARACTERISTICS OF VERTICAL LSM;457
15.18.5;4. CONCLUSION;459
15.18.6;REFERENCE;459
15.19;Chapter 107. Dynamic characteristics of linear induction motor with ladder-type
secondary;460
15.19.1;ABSTRACT;460
15.19.2;1. INTRODUCTION;460
15.19.3;2. EXPERIMENTAL EQUIPMENT FOR MEASURING DYNAMIC
CHARACTERISTICS;460
15.19.4;3. METHOD OF MEASURING THE CHARACTERISTICS;461
15.19.5;4. THE THRUST-FREQUENCY CHARACTERISTICS;462
15.19.6;5. CONCLUSION;463
15.19.7;Reference;463
15.20;Chapter 108. A study of thrust characteristics on
linear oscillatory actuator for artificial heart;464
15.20.1;Abstract;464
15.20.2;1. Introduction;464
15.20.3;2. Structure of the LOA;465
15.20.4;3. Static thrust characteristic analysis;465
15.20.5;4. Conclusion;467
15.20.6;References;467
15.21;Chapter 109.
A Study on Linear Oscillatory Actuator for Liquid Hydrogen Pump;468
15.21.1;ABSTRACT;468
15.21.2;1. INTRODUCTION;468
15.21.3;2. STRUCTURE AND OPERATION;469
15.21.4;3. ANALYSIS AND MEASUREMENT OF STATIC THRUST;470
15.21.5;4. CONCLUSION;471
15.21.6;REFERENCES;471
15.22;Chapter 110. Design of an H 8 robust control system for a magnetically levitated thin iron plate;472
15.22.1;1. INTRODUCTION;472
15.22.2;2. SIMPLIFIED MODEL-APPARATUS;472
15.22.3;3. CONTROL SYSTEM DESIGN FOR THE SIMPLIFIED MODEL;473
15.22.4;4. CONCLUSION;475
15.22.5;Reference;475
15.23;Chapter 111. MAGNETIC SHIELDING PROPERTIES OF TILE OXIDE
SUPERCONDUCTORS;476
15.23.1;ABSTRACT;476
15.23.2;1. INTRODUCTION;476
15.23.3;2. ANALYTICAL MODEL;476
15.23.4;3. EXPERIMENTAL EQUIPMENT FOR MAGNETIC SHIELDING;478
15.23.5;4. FLUX DENSITY DISTRIBUTION;478
15.23.6;5.CONCLUSION;479
15.23.7;REFERENCE;479
15.24;Chapter 112. Investigation on the Improvement of Positioning Accuracy of
Surface Motor;480
15.24.1;ABSTRACT;480
15.24.2;1. INTRODUCTION;480
15.24.3;2. BASIC STRUCTURE AND OPERATING PRINCIPLES;480
15.24.4;3. OBTAINING HIGHER POSITIONING ACCURACY;481
15.24.5;4. CONCLUSION;483
15.24.6;REFERENCES;483
15.25;Chapter 113. CHARACTERISTICS ON CYLINDRICAL MOVING COIL LINEAR DC
MOTOR FOR VIBRATOR;484
15.25.1;ABSTRACT;484
15.25.2;INTRODUCTION;484
15.25.3;2.BASIC STRUCTURE OF MC-LDM;484
15.25.4;3.STATIC THRUST CHARACTERISTIC ANALYSIS;485
15.25.5;4.CONCLUSION;487
15.25.6;REFERENCE;487
15.26;Chapter 114. INVESTIGATION OF CHARACTERISTICS ON
HIGH-Tc SUPERCONDUCTING LINEAR ACTUATOR;488
15.26.1;ABSTRACT;488
15.26.2;1. INTRODUCTION;488
15.26.3;2. SCHEME OF ANALYSIS AND BASIC CHARACTERISTICS;488
15.26.4;3. DEPENDENCY OF TEETH SHAPE OF SECONDARY;490
15.26.5;4. EFFECT OF DIAMAGNETISM;491
15.26.6;5. CONCLUSION;491
15.26.7;REFERENCE;491
15.27;Chapter 115. Consideration on acceleration mechanism of two dimensional
MPD thruster;492
15.27.1;1. INTRODUCTION;492
15.27.2;2. MPD THRUSTER AND MASTER EQUATIONS;492
15.27.3;3. CONSIDERATION ON PROPULSION FORCE;494
15.27.4;ACKNOWLEDGEMENTS;494
15.27.5;REFERENCES;495
15.28;Chapter 116. Repulsive-Mode Levitation Control during a Standstill of
a Land Travelling Marine-Express Model Train ME03;496
15.28.1;1. INTRODUCTION;496
15.28.2;2. MARINE-EXPRESS MODEL TRAIN ME03;497
15.28.3;3. EQUATIONS OF MOTION AND CONTROL SYSTEM;497
15.28.4;4. EXPERIMENTAL RESULTS;497
15.28.5;5. CONCLUSIONS;499
15.28.6;REFERENCES;499
15.29;Chapter 117. Analysis of a linear generator in a MAGLEV vehicle
by FEM;500
15.29.1;1. INTRODUCTION;500
15.29.2;2. FINITE ELEMENT ANALYSIS;500
15.29.3;3. CALCULATION OF THE MODEL SYSTEM;501
15.29.4;4. CONCLUSION;502
15.29.5;REFERENCES;503
15.30;Chapter 118. Analysis of electromagnetic forces of EDS
with quadruple armature coils;504
15.30.1;ABSTRACT;504
15.30.2;1. INTRODUCTION;504
15.30.3;2. STRUCTURE OF A SINGLE COIL EDS SYSTEM;505
15.30.4;3. CHARACTERISTICS OF THE SINGLE COIL EDS SYSTEM;505
15.30.5;4. NUMERICAL EXAMPLES;506
15.30.6;5. CONCLUSION;507
15.30.7;REFERENCES;507
15.31;Chapter 119. The Electromagnetic Analysis for MAGLEV Train under Short-circuit of
the Armature Coil;508
15.31.1;Abstract;508
15.31.2;1. Introduction;508
15.31.3;2. SCM system;508
15.31.4;3. Analysis using Wire Segments Model;508
15.31.5;4. Finite Element Analysis;508
15.31.6;5. Experiment;509
15.31.7;6. Conclusions;509
15.31.8;References;509
15.32;Chapter 120. Control system design for a magnetic levitation module;512
15.32.1;1. LEVITAION SYSTEM DESCRIPTION;512
15.32.2;2. LEVITATION MODEL AND CONTROL SYSTEM DESIGN;512
15.32.3;3. SIMULATION AND EXPERIMENTAL RESULTS;513
15.32.4;4. CONCLUSION;515
15.32.5;REFERENCES;515
15.33;Chapter 121. FLUX SENSING FOR DIRECT VECTOR CONTROL
OF LINEAR INDUCTION MOTOR;516
15.33.1;1. INTRODUCTION;516
15.33.2;2. FLUX SENSING BY TAPPED WINGINGS;517
15.33.3;3. FLUX SENSING BY HALL SENSORS;519
15.33.4;4. CONCLUSION;519
15.33.5;Acknowledgement;519
15.33.6;REFERENCES;519
15.34;Chapter 122. The analysis of the temperature characteristics of superconducting
persistent current switch with respect to heater currents;520
15.34.1;1. INTRODUCTION;520
15.34.2;2. THE HEAT CONDUCTION EQUATIONS;521
15.34.3;3. EXPERIMENT;521
15.34.4;4. CONCLUSION;523
15.34.5;REFERENCES;523
15.35;Chapter 123. Coarse/Fine Pair Control System for Magneto-optical
Disk Drives;524
15.35.1;1 Introduction;524
15.35.2;2 Coarse/fine Pair Control System for MO Disk Drive;524
15.35.3;3 Design of Coarse Tracking Actuator and Focusing Actuator;525
15.35.4;4 Servo Control System and Experiment results;526
15.35.5;5 Conclusion;527
15.35.6;References;527
16;Part 6: Modeling and Applications of Magnetic Fluid, Plasma
and Arc Discharge;528
16.1;Chapter 124. A 2D FINITE ELEMENT ANALYSIS FOR THE MODELING
OF RF PLASMA DEVICES FED BY VOLTAGE DRIVEN COIL;530
16.1.1;ABSTRACT;530
16.1.2;1. INTRODUCTION;530
16.1.3;2. PROBLEM FORMULATION;530
16.1.4;3. APPLICATION AND RESULTS;532
16.1.5;4. CONCLUSION;533
16.1.6;ACKNOWLEDGEMENT;533
16.1.7;REFERENCES;533
16.2;Chapter 125. Electrorheological properties and the effect of heating on oilbased magnetic fluid prepared by dispersing moisturecontaining
ferrite;534
16.2.1;1. INTRODUCTION;534
16.2.2;2. MATERIALS AND METHODS;534
16.2.3;3. EXPERIMENTAL RESULTS AND DISCUSSION;536
16.2.4;4. CONCLUSION;537
16.2.5;REFERENCES;537
16.3;Chapter 126.
Circular flow of a magnetic fluid between coaxial cylinders;538
16.3.1;1. INTRODUCTION;538
16.3.2;2. EXPERIMENT;538
16.3.3;3. RESULTS AND DISCUSSIONS;539
16.3.4;4. CONCLUDING REMARKS;541
16.3.5;REFERENCES;541
16.4;Chapter 127. Surface behaviors of the two-layers liquid sloshing under non-uniform
magnetic field;542
16.4.1;1. INTRODUCTION;542
16.4.2;2. EXPERIMENTS;542
16.4.3;3. Linearized wave theory;543
16.4.4;4. RESULTS AND DISCUSSION;544
16.4.5;REFERENCES;545
16.5;Chapter 128. Numerical estimation of bootstrap current in tokamaks under
different approximations;546
16.5.1;Abstract;546
16.5.2;1. INTRODUCTION;546
16.5.3;2. FORMULATION;546
16.5.4;3. NUMERICAL RESULTS;547
16.5.5;4. CONCLUSIONS;548
16.5.6;ACKNOWLEDGMENTS;548
16.5.7;REFERENCES;549
16.6;Chapter 129. On the Behavior of Injected Particles in Plasma Spraying
Process;550
16.6.1;1. INTRODUCTION;550
16.6.2;2. GOVERNING EQUATIONS;550
16.6.3;3. RESULTS AND CONSIDERATION;551
16.6.4;4. CONCLUSION;552
16.6.5;REFERENCES;552
16.7;Chapter 130. Analysis of the steep-fronted surge stress in Induction motor
winding using EMTP;554
16.7.1;ABSTRACT;554
16.7.2;1. INTRODUCTION;554
16.7.3;2. BASIC THEORY FOR ANALYSIS;554
16.7.4;3. MODEL FOR ANALYSIS OF COILS SURGE DISTRIBUTION;555
16.7.5;4. THE RESULTS OF ANALYSIS;556
16.7.6;5. CONCLUSION;557
16.7.7;REFERENCES;557
16.8;Chapter 131. Fractal nature of the Barkhausen jumps in metal ribbon
observed by pulsed magnetometer;558
16.8.1;1. INTRODUCTION;558
16.8.2;2. EXPERIMENTS AND RESULTS;559
16.8.3;3. FRACTAL NATURE OF BJ;560
16.8.4;4- DISCUSSION;561
16.8.5;REFERENCES;561
16.9;Chapter 132. Numerical analysis of fast inter-cathode break-down in open-cycle
MHD generator;562
16.9.1;1 Introduction;562
16.9.2;2 Mathematical Model and Numerical Scheme;563
16.9.3;3 Fast Inter-Cathode Breakdown;563
16.9.4;4 Concluding Remarks;565
16.9.5;References;565
16.10;Chapter 133. Numerical Analysis for the Process of Dielectric Breakdown
by Fractal Aspect;566
16.10.1;Abstract;566
16.10.2;1. INTRODUCTION;566
16.10.3;2. GROWTH PROBABILITIES;567
16.10.4;3. NUMERICAL ALGORITHM;568
16.10.5;4. EFFECTS OF PARAMETERS;568
16.10.6;5. CONCLUSION;569
16.10.7;REFERENCES;569
17;Part 7:
High-Frequency Field Problems Computations;570
17.1;Chapter 134.
Recent Advances in the Modeling of Induction Heating;572
17.1.1;1. Physical Nature of the Coupling in Induction Heating Problems;572
17.1.2;2. Conclusions;574
17.1.3;REFERENCES;575
17.2;Chapter 135. Electromagnetic scattering by a chiral coated dielectric cylinder;576
17.2.1;1. INTRODUCTION;576
17.2.2;2. PROBLEM FORMULATION;576
17.2.3;3. NUMERICAL RESULTS;578
17.2.4;4. CONCLUSION;579
17.2.5;REFERENCES;579
17.3;Chapter 136. Analysis of a distributed amplifier of MESFET's by the
transmission-line-matrix method;580
17.3.1;1. INTRODUCTION;580
17.3.2;2 MODELING OF A DISTRIBUTED AMPLIFIER;580
17.3.3;3 THE TRANSMISSION LINE MATRIX METHOD;581
17.3.4;4. RESULTS AND CONCLUDING REMARKS;582
17.3.5;REFERENCES;583
17.4;Chapter 137. 3D Analysis of Waveguide Loaded Cavities Using Edge Based Finite Elements;584
17.4.1;1. INTRODUCTION;584
17.4.2;2. METHOD OF ANALYSIS;584
17.4.3;3. NUMERICAL RESULTS;586
17.4.4;4. CONCLUSIONS;587
17.4.5;REFERENCES;587
17.5;Chapter 138. A Self-Organizing Finite-Element Tessellation Mesh Generator
for Electromagnetic Field Problems;588
17.5.1;1. INTRODUCTION;588
17.5.2;2. 3D SOFT MESH GENERATOR;589
17.5.3;3. SIMULATION RESULTS;590
17.5.4;4. CONCLUSION;591
17.5.5;REFERENCES;591
17.6;Chapter 139. Numerical modeling of axisymmetric problem using FEM with absorbing boundary condition;592
17.6.1;1. INTRODUCTION;592
17.6.2;2. GOVERNING EQUATIONS FOR EDDY CURRENT;592
17.6.3;3. FINITE ELEMENT FORMULATION FOR AXISYMMETRIC EDDY CURRENT;593
17.6.4;4. NUMERICAL RESULTS;594
17.6.5;5. CONCLUSION;595
17.6.6;REFERENCES;595
17.7;Chapter 140.
Transverse modes of RF-excited circular waveguide CO2 laser;596
17.7.1;1. INTRODUCTION;596
17.7.2;2.THEORY;596
17.7.3;3.RESULTS AND DISCUSSION;597
17.7.4;4. CONCLUSION;599
17.7.5;REFERENCES;599
17.8;Chapter 141. Detection of edge wave for sound diffraction using the correlation
and inverse filtering techniques;600
17.8.1;1. INTRODUCTION;600
17.8.2;2. THEORY OF MEASUREMENT;600
17.8.3;3. EXPERIMENTAL PERFORMANCE;602
17.8.4;4. CONCLUSION;603
17.8.5;5. REFERENCES;603
17.9;Chapter 142. Sound wave detection for the multiple sounds field by taking
account of wavelength constant;604
17.9.1;1. INTRODUCTION;604
17.9.2;2. THEORY OF SOUND DETECTION;605
17.9.3;3. EXPERIMENTAL PERFORMANCE;606
17.9.4;4. CONCLUSION;607
17.9.5;5. REFERENCES;607
17.10;Chapter 143. Numerical analysis of radiation field structure from free
electron laser;608
17.10.1;Abstract;608
17.10.2;1. INTRODUCTION;608
17.10.3;2. SIMULATION METHOD;608
17.10.4;3. NUMERICAL RESULTS;609
17.10.5;4. SUMMARY;610
17.10.6;REFERENCES;610
17.11;Chapter 144. An 'a posteriori' Local Error Estimation Scheme for Adaptive Computation
of Electromagnetic Fields Using "Edge" Finite Elements;612
17.11.1;Abstract;612
17.11.2;1. INTRODUCTION;612
17.11.3;2. EDGE FINITE ELEMENTS;612
17.11.4;3. AN 'A POSTERIORI' ERROR ESTIMATE FOR ADAPTIVE FINITE ELEMENT;613
17.11.5;4. NUMERICAL TEST RESULTS AND DISCUSSION;614
17.11.6;4. CONCLUSIONS;615
17.11.7;REFERENCES;615
17.12;Chapter 145.
Error Estimation for Adaptive Scheme of Vector Finite Element Method;616
17.12.1;Abstract;616
17.12.2;1. INTRODUCTION;616
17.12.3;2. ADAPTIVE SCHEME AND ERROR ESTIMATION;616
17.12.4;3. NUMERICAL EXAMPLES;617
17.12.5;4. CONCLUSION;619
17.12.6;REFERENCE;619
17.13;Chapter 146. A Simulator for Train Detection and its Control by Inductive Radio
Line;620
17.13.1;1. INTRODUCTION;620
17.13.2;2. System Description;621
17.13.3;3. Circuits and Experimental Results;622
17.13.4;4. An Application using the speed signal;623
17.13.5;5. Conclusion;623
17.13.6;REFERENCE;623
17.14;Chapter 147. MOMENT METHOD ANALYSIS OF
A CROSSED SLOT DIRECTIONAL COUPLER;624
17.14.1;Abstract;624
17.14.2;l.INTRODUCTION;624
17.14.3;2.ANALYSIS;624
17.14.4;3.RESULTS AND DISCUSSION;626
17.14.5;4.CONCLUSIONS;627
17.14.6;REFERENCES;627
18;Part 8:
Electronic Device Simulations;628
18.1;Chapter 148. Investigation of novel high voltage polysilicon thin film
transistors;630
18.1.1;1. INTRODUCTION;630
18.1.2;2. SIMULATION;631
18.1.3;3. CONCLUSIONS;632
18.1.4;REFERENCES;632
18.2;Chapter 149.
Basic phenomena of contact bounce in the electrical switching system;634
18.2.1;Abstract;634
18.2.2;1 INTRODUCTION;634
18.2.3;2 FEATURE OF ELECTRICAL CONTACT BOUNCE PHENOMENA;634
18.2.4;3 TRANSIENT MOTION OF TRAVELING AND FIXED CONTACTS;635
18.2.5;ACKNOWLEDGEMENTS;637
18.2.6;REFERENCE;637
18.3;Chapter 150. Computations on voltage distributions of metal-oxide
surge arresters with hanging mounting patterns;638
18.3.1;1. INTRODUCTION;638
18.3.2;2. NUMERICAL METHOD FOR COMPUTING POTENTIAL DISTRIBUTION;639
18.3.3;3. VOLTAGE DISTRIBUTION OF 220kV SUSPENDED-TYPE PLMOA;641
18.3.4;4. CONCLUDING REMARKS;641
18.3.5;REFERENCES;641
18.4;Chapter 151. Numerical analysis of the electron trajectories
in the field emission display;642
18.4.1;1. INTRODUCTION;642
18.4.2;2. MODEL OF A FIELD EMITTER;642
18.4.3;3. RESULTS;644
18.4.4;4. CONCLUSION;645
18.4.5;Acknowledgment;645
18.4.6;References;645
18.5;Chapter 152.
Harmonic analysis of magnetic deflection yoke;646
18.5.1;ABSTRACT;646
18.5.2;1. INTRODUCTION;646
18.5.3;2. HARMONIC FIELDS;646
18.5.4;3. SCREEN ERRORS AND COIL HARMONICS;647
18.5.5;4. CONCLUSION;649
18.5.6;REFERENCES;649
18.6;Chapter
153. The space-charge effect in optimization for electron gun;650
18.6.1;Abstract;650
18.6.2;1. INTRODUCTION;650
18.6.3;2 SELF-CONSISTENT FIELD;650
18.6.4;3. EVOLUTION STRATEGY;651
18.6.5;4. OBJECTIVE FUNCTION and DESIGN VARIABLES;651
18.6.6;5. NUMERICAL RESULTS;651
18.6.7;5. CONCLUSIONS;653
18.6.8;REFERENCES;653
18.7;Chapter 154. Analysis and fabrication of cell manipulation devices using dielectrophoretic
force;654
18.7.1;Abstract;654
18.7.2;1. INTRODUCTION;654
18.7.3;2. ANALYSIS;655
18.7.4;3. FABRICATION;656
18.7.5;5. CONCLUSION;657
18.7.6;Acknowledgment;657
18.7.7;REFERENCES;657
18.8;Chapter 155. A RESONANT PHENOMENON BETWEEN ADJACENT SERIES
CONNECTED COILS AND ITS APPLICATION TO A NOISE FILTER;658
18.8.1;ABSTRACT;658
18.8.2;1. INTRODUCTION;658
18.8.3;2. RESONANT TYPE INDUCTOR;659
18.8.4;3. CONCLUSION;661
18.8.5;REFERENCES;661
19;Part 9:
Magnetic Materials;662
19.1;Chapter 156. One- and Two-Dimensional Magnetic Phenomena in Electrical Steel and their
Measurement;664
19.1.1;1. INTRODUCTION;664
19.1.2;2. THE ONE-DIMENSIONAL CASE;664
19.1.3;3. THE TWO-DIMENSIONAL CASE;665
19.1.4;4. SUMMARY;667
19.2;Chapter 157.
An amorphous toroidal displacement transducer;668
19.2.1;1. INTRODUCTION;668
19.2.2;2. DESIGN OF THE DISPLACEMENT TRANSDUCER;668
19.2.3;3. RESULTS AND DISCUSSIONS;669
19.2.4;4. CONCLUSION;671
19.2.5;5. REFERENCES;671
19.3;Chapter 158.
On equivalent reluctances for time harmonic eddy current analysis;672
19.3.1;Abstract;672
19.3.2;1. INTRODUCTION;672
19.3.3;2. A SIMPLE ONE-DIMENSIONAL MODEL;673
19.3.4;3. A BENCHMARK PROBLEM;673
19.3.5;4. CONCLUSIONS;674
19.3.6;REFERENCES;675
19.4;Chapter 159. Elasticity moduli of the Fe73.5Cu1Nb3Si15.5B7 after annealing in vacuum at different temperatures in the range from 300 to 560°C;676
19.4.1;1. INTRODUCTION;676
19.4.2;2. EXPERIMENT;676
19.4.3;3. DISCUSSION AND CONCLUSIONS;679
19.4.4;REFERENCES;679
19.5;Chapter 160.
Magnetostatic tailoring of coercive forces;680
19.5.1;1. INTRODUCTION;680
19.5.2;2 . EXPERIMENTS AND RESULTS;680
19.5.3;3. DISCUSSION AND CONCLUSIONS;683
19.5.4;ACKNOWLEDGEMENTS;683
19.5.5;REFERENCES;683
19.6;Chapter 161.
Two-dimensional magnetic properties of three-phase transformer core;684
19.6.1;1. INTRODUCTION;684
19.6.2;2. MEASUREMENT SYSTEM AND MODEL CORE;684
19.6.3;3. MEASUREMENT RESULTS AND DISCUSSION;685
19.6.4;4. CONCLUSION;686
19.6.5;REFERENCES;686
19.7;Chapter 162. Domain observation under rotational excitation
by 30kV scanning electron microscope;688
19.7.1;1. INTRODUCTION;688
19.7.2;2. EXPERIMENTAL PROCEDURE;688
19.7.3;3. RESULTS AND DISCUSSION;690
19.7.4;4. CONCLUSION;691
19.7.5;5. REFERENCES;691
19.8;Chapter 163. THE MAGNETIZATION CHANGE OF SILICON IRON ALLOYS DUE TO PLASTIC
DEFORMATION BY THE APPLICATION OF TENSION;692
19.8.1;ABSTRACT;692
19.8.2;1. INTRODUCTION;692
19.8.3;2. SAMPLES AND EXPERIMENTS;692
19.8.4;3. RESULTS AND DISCUSSION;692
19.8.5;4. CONCLUSIONS;695
19.8.6;REFERENCES;695
19.9;Chapter 164. THE EFFECT OF STRESS ON THE TWO-DIMENSIONAL
MAGNETIZATION CHANGE OF SILICON IRON SINGLE CRYSTALS;696
19.9.1;ABSTRACT;696
19.9.2;1. INTRODUCTION;696
19.9.3;2. SAMPLES AND EXPERIMENT;696
19.9.4;3. RESULTS AND DISCUSSION;696
19.9.5;4. CONCLUSIONS;699
19.9.6;REFERENCE;699
19.10;Chapter 165. Prediction of core loss with elliptical flux from measurements with
alternating and circular fluxes in electrical steel sheets;700
19.10.1;1. INTRODUCTION;700
19.10.2;2. FORMULATION;701
19.10.3;3. EXPERIMENTAL VERIFICATION;702
19.10.4;4. CONCLUSION;703
19.10.5;REFERENCES;703
19.11;Chapter 166.
Influence of Grain Boundaries on Rotational Power Loss;704
19.11.1;1. INTRODUCTION;704
19.11.2;2. EXPERIMENTAL PROCEDURE;704
19.11.3;3. RESULTS AND DISCUSSIONS;705
19.11.4;4. CONCLUSIONS;706
19.11.5;REFERENCES;706
19.12;Chapter 167. Measurement of the coercive field strength
noise of amorphous core;708
19.12.1;1. INTRODUCTION;708
19.12.2;2. PREPARATION OF SAMPLES;708
19.12.3;3. EXPERIMENT AND RESULTS;709
19.12.4;4. CNCLUSION;711
19.12.5;REFERENCES;711
19.13;Chapter 168. The magnetic properties of Co-Fe electrodeposited alumite
films;712
19.13.1;1. INTRODUCTION;712
19.13.2;2. EXPERIMENTAL PROCEDURES;712
19.13.3;3. RESULTS AND DISCUSSION;713
19.13.4;4. CONCLUSIONS;715
19.13.5;REFERENCES;715
19.14;Chapter 169.
Modeling hysteresis in electromagnetic transient studies;716
19.14.1;1. INTRODUCTION;716
19.14.2;2. HYSTERESIS MODEL;716
19.14.3;3. MODEL IMPLEMENTATION TO ELECTROMAGNETIC TRANSIENT STUDIES;718
19.14.4;4. CONCLUSION;719
19.14.5;REFERENCE;719
19.15;Chapter 170. Output voltage characteristics and magnetic field analysis
of magnetic defect sensor for escalator - handrail;720
19.15.1;Abstract;720
19.15.2;1. INTRODUCTION;720
19.15.3;2. THE OUTPUT VOLTAGE CHARACTERISTICS OF MAGNETIC DEFECT
SENSOR;720
19.15.4;3. THE OUTPUT VOLTAGE CHARACTERISTICS VARIATION WITH COERCIVE
FORCE;722
19.15.5;4. THE OUTPUT VOLTAGE CHARACTERISTICS VARIATION WITH CORE GAP;722
19.15.6;5. CONCLUSION;723
19.15.7;REFERENCES;723
19.16;Chapter 171. Magnetization and demagnetization of the magnetic card by
irreversible alloying by light irradiation for the security;724
19.16.1;1 . INTRODUCTION;724
19.16.2;2. SAMPLE PREPARATION;724
19.16.3;3. EXPERIMENTS;725
19.16.4;4.DISCUSSIONS;727
19.16.5;Aknowlegdements;727
19.16.6;References;727
19.17;Chapter 172. Measurement of Vibration Mode of an Acoustic Vibration
Element Using Giant Magnetostrictive Material;728
19.17.1;Abstract;728
19.17.2;1. INTRODUCTION;728
19.17.3;2. STRUCTURE AND VIBRATION CHARACTERISTICS OF THE AVEG;728
19.17.4;3. VIBRATION VELOCITY DISTRIBUTION IN VIBRATION PLANES;730
19.17.5;4. EFFECT OF PRESTRESS BOLTS ON VIBRATION PLANES;731
19.17.6;REFERENCE;731
19.18;Chapter 173. Implementation of time domain finite element method to complicated
microwave devices;732
19.18.1;1. INTRODUCTION;732
19.18.2;2. FINITE ELEMENT AND LINE INTEGRAL APPROACH;732
19.18.3;3. NUMERICAL IMPLEMENTATION;733
19.18.4;4. NUMERICAL RESULTS;734
19.18.5;REFERENCES;735
19.19;Chapter 174. Computer simulation of playback performance of
metal-in-gap head using finite element method;736
19.19.1;1. INTRODUCTION;736
19.19.2;2. PLAYBACK VOLTAGE CALCULATION USING RECIPROCITY
THEOREM;736
19.19.3;3. SIMULATION METHOD;737
19.19.4;4. RESULTS AND DISCUSSION;738
19.19.5;5. CONCLUSIONS;739
19.19.6;6. REFERNCES;739
19.20;Chapter 175. Magnetic exchange coupling at the interface of NiFe/Tb
Cothin films;740
19.20.1;1. INTRODUCTION;740
19.20.2;2. EXPERIMENTAL PROCEDURE;741
19.20.3;3. RESULTS AND DISCUSSION;741
19.20.4;4. CONCLUSIONS;743
19.20.5;REFERENCES;743
19.21;Chapter 176.
Magnetostriction of Amorphous (Fe,Pr)-B Alloys;744
19.21.1;1. INTRODUCTION;744
19.21.2;2. EXPERIMENTS;744
19.21.3;3. RESULTS AND DISCUSSION;745
19.21.4;4. CONCLUSION;747
19.21.5;REFERENCES;747
19.22;Chapter 177. Effect of additives on the magnetic properties of
Nd-(Fe,Co)-B melt-spun ribbons;748
19.22.1;1. INTRODUCTION;748
19.22.2;2. EXPERIMENTAL PROCEDURES;748
19.22.3;3. RESULTS AND DISCUSION;749
19.22.4;4. CONCLUSION;751
19.22.5;REFERENCES;751
19.23;Chapter 178. Magnetic properties and phase analysis of NdxFe77B23-xmelt spun alloys;752
19.23.1;1. INTRODUCTION;752
19.23.2;2. EXPERIMENTAL RESULTS AND DISCUSSION;752
19.23.3;3. CONCLUSION;755
19.23.4;REFERENCES;755
19.23.5;ACKNOWLEDGEMENT;755
19.24;Chapter 179. EFFECT OF CHAMBER GAS PRESSURE ON THE MICROSTRUCTURES AND MAGNETIC PROPERTIES OF Nd12Fe77B8Cu3 MELT-SPUN RIBBONS;756
19.24.1;1. INTRODUCTION;756
19.24.2;2. EXPERIMENTAL PROCEDURES;756
19.24.3;3. RESULTS AND DISCUSSION;757
19.24.4;4. CONCLUSION;759
19.24.5;REFERENCES;759
20;AUTHOR INDEX;760