Applied Electromagnetics in Materials (eBook)

Proceedings of the First International Symposium, Tokyo, 3-5 October 1988

K. Miya (Herausgeber)

eBook Download: PDF

2013 | 1. Auflage
386 Seiten
Elsevier Science (Verlag)
978-1-4832-8703-4 (ISBN)

Infos

The proceedings of this International Symposium focus on recent advances and current research in the study of electromagnetic phenomena in advanced materials, and the potential applications of such research in a variety of areas, including non-destructive testing, steel-making, and nuclear and electrical engineering. Also discussed is the effect of electromagnetic fields on the micro- and macromechanics of solid materials, and the application of electromagnetics to the preparation and characterization of new superconducting materials. This is a valuable account of current research in an increasingly topical area which will be of interest to materials scientists working on advanced materials and to electrical, mechanical and nuclear engineers interested in the application of electromagnetic forces in industry.

Inhalt

Front Cover 1
Applied Electromagnetics in Materials 4
Copyright Page 5
Table of Contents 6
Preface 10
Part I: Electromagnetosolid Mechanics 12
Chapter 1. Coupled Magnetomechanical and Electromechanical Hysteresis Effects 14
ABSTRACT 14
KEYWORDS 14
INTRODUCTION 14
NOTION OF HYSTERESIS 15
THE PHENOMENOLOGICAL PROBLEM 20
IRREVERSIBLE THERMODYNAMICS OF ELECTRIC HYSTERESIS 21
EXAMPLE OF ELECTRIC LOADING FUNCTION 24
INFLUENCE OF STRESSES ON HYSTERESIS 25
POLING OF CERAMICS 27
CONCLUDING REMARKS 28
REFERENCES 29
Chapter 2. Analogy between Equations of Generalized Dynamic Thermoelasticity and Equations of Electrodynamics 30
ABSTRACT 30
KEYWORDS 30
INTRODUCTION 30
SURVEY OF ANALOGIES BETWEEN ELASTODYNAMICS AND ELECTRODYNAMICS UNDER ISOTHERMAL CONDITIONS 31
BASIC EQUATIONS OF LINEAR ELACTROMAGNETO-THERMOELASTICITY WITH RELAXATION TIMES 31
AN ANALOGY BETWEEN ELECTROMAGNETIC AND THERMOELASTIC FIELDS 33
REFERENCES 34
Chapter 3. Dynamic Behavior of Flawed Thin Plates Under Time-varying Magnetic Field 36
ABSTRACT 36
KEYWORDS 36
INTRODUCTION 36
THEORETICAL ANALYSIS 37
NUMERICAL RESULTS 39
EXPERIMENT 43
CONCLUSIONS 45
REFERENCES 45
Chapter 4. Singular Moments in a Cracked Soft Ferromagnetic Plate Under Bending 46
ABSTRACT 46
KEYWORDS 46
INTRODUCTION 46
STATEMENT OF THE PROBLEM AND BASIC EQUATIONS 47
SOLUTION PROCEDURE 49
NUMERICAL RESULTS AND DISCUSSION 56
REFERENCES 57
Chapter 5. Magnetic Field and Stress Analysis for a Ferromagnetic Material 58
ABSTRACT 58
KEYWORDS 58
INTRODUCTION 58
BASIC EQUATIONS 59
METHOD OF MAGNETIC FIELD ANALYSIS 60
APPLICATION TO FERROMAGNETIC PLATES 62
APPLICATION TO FUSION FIRST WALL 65
REFERENCES 69
Part II: Electromagnetics in Free Electron Laser 70
Chapter 6. Overview of the Accelerators for Free Electron Laser Oscillators and the Design Consideration on the JAERI Superconducting LINAC 72
ABSTRACT 72
KEYWORDS 72
INTRODUCTION 72
BRIEF OVERVIEW 74
DESIGN CONSIDERATION 77
ACKNOWLEDGMENT 80
REFERENCES 80
Chapter 7. Higher Harmonies Operation of UT/NERL Free-electron Laser 82
ABSTRACT 82
KEYWORDS 82
INTRODUCTION 82
ACCELERATOR 83
PARAMETERS OF THE FEL 84
HIGHER HARMONICS GENERATION 86
SUMMARY 90
ACKNOWLEDGMENT 90
REFERENCES 90
Chapter 8. Spectral Characteristics of Free-electron Lasers 92
ABSTRACT 92
KEYWORDS 92
INTRODUCTION 92
SPECTRUM OF FEL 93
NODE ANALYSIS IN LASER DYNAMICS 94
MULTI-MODE FEL SIMULATION CODE 95
CALCULATION RESULTS 97
CONCLUSIONS 101
REFERENCES 101
Chapter 9. Generation and Resonance Absorption of Doppler Shift Dominated Cyclotron Maser Radiation by an Intense Relativistic Electron Beam 102
ABSTRACT 102
KEYWORDS 102
INTRODUCTION 102
EXPERIMENTAL ARRANGEMENT 103
TUNABLE OPERATION OF BWO 106
RESONANCE ABSORPTION OF EXTERNALLY INJECTED WAVE 108
EFFECT OF LONGITUDINAL WIGGLER ON THE OPERATION 109
DISCUSSION AND CONCLUSIVE REMARK 110
REFERENCES 111
Chapter 10. Design of the Beam Line for FEL Experiment 114
ABSTRACT 114
KEYWORDS 114
Conclusions 123
Acknowledgments 125
REFERENCES 125
Part III: Application of Electromagnetic Force and Phenomena 126
Chapter 11. Developments in the Numerical Modeling of NDT Phenomena 128
ABSTRACT 128
KEYWORDS 128
INTRODUCTION 128
MAGNETOSTATIC NDE 129
QUASI-STATIC NDE 129
WAVE BASED NDE 130
DISCUSSION 130
ACKNOWLEDGEMENTS 131
REFERENCES 131
Chapter 12. An Application of Electromagnetic Phenomena to Inverse Problem for Defect Shape Recognition 138
ABSTRACT 138
KEYWORDS 138
INTRODUCTION 138
THEORETICAL BACKGROUND FOR INVERSE PROBLEMS OF DEFECT IDENTIFICATION 140
NUMERICAL RESULTS AND DISCUSSIONS 145
CONCLUDING REMARKS 151
REFERENCES 152
Chapter 13. Interpretation of Seafloor Electromagnetic Data in Applied Geophysics 154
INTRODUCTION 154
THE HRHR EXPERIMENT 156
THE ERER EXPERIMENT 158
FINITE ELEMENT-GAVER STEHFEST ALGORITHM 159
CONCLUSIONS 163
REFERENCES 164
Chapter 14. Study of Remote Field Eddy Current Technique by Use of Poynting Vector 166
ABSTRACT 166
KEYWORDS 166
INTRODUCTION 166
LINES OF MAGNETIC INDUCTION AND POYNTING VECTOR 167
REMOTE FIELD EDDY CURRENT TECHNIQUE 168
ELECTROMAGNETIC ENERGY FLOW 169
CONCLUSION 177
REFERENCES 177
Chapter 15. Estimation of Magnetic Reluctivity by the Finite Element Method and Analysis of the Error 178
ABSTRACT 178
KEYWORDS 178
INTRODUCTION 178
FORMULATION OF THE ESTIMATION OF A MAGNETIC RELUCTIVITY 178
ESTIMATION OF THE RELUCTIVITY IN THE MODEL 180
ACCURACY OF THE ESTIMATION 182
DISTRIBUTION OF THE SENSITIVITY IN THE MODEL 187
CONCLUSIONS 189
REFERENCES 189
Chapter 16. Numerical Analysis of an Annular Electromagnetic Flow Coupler 190
ABSTRACT 190
KEYWORDS 190
INTRODUCTION 190
ANALYSIS OF FLOW COUPLERS 191
CALCULATION METHOD 192
CALCULATED RESULTS 196
CONCLUSIONS 199
REFERENCES 200
Chapter 17. Electromagnetic Phenomena on Guideway Structures of Magnetic Lévitation 202
Introduction 202
Maglev 202
Guideway structure 203
Materials of bridges 204
The M-Bahn turnout 205
Electromagnetic analysis 206
Reference 206
Chapter 18. Applications of the Electromagnetic Force to Steel Making Processes 208
ABSTRACT 208
KEYWORDS 208
INTRODUCTION 208
RESULTS AND DISCUSSION 211
CONCLUSION 217
REFERENCES 218
Part IV: New Approach in Eddy Current Analysis 220
Chapter 19. The Computation of Eddy-currents in Deformable Conductors 222
ABSTRACT 222
KEYWORDS 222
INTRODUCTION 222
A MODEL PROBLEM, IN ITS TRANSIENT AND STATIC VERSIONS 223
WHITNEY ELEMENTS 227
THE COMPUTATION OF EDDY-CURRENTS 229
TOPICS 232
CONCLUSION 234
REFERENCES 234
Chapter 20. Three Dimensional Eddy Current Calculation Using Edge Elements for Magnetic Vector Potential 236
ABSTRACT 236
KEYWORDS 236
INTRODUCTION 236
VARIATIONAL FORMULATIONS 237
EDGE ELEMENTS 240
NUMERICAL RESULTS 242
DISCUSSIONS AND CONCLUSIONS 246
ACKNOWLEDGMENT 247
REFERENCES 247
Chapter 21. Finite Element Solution of Open Boundary Eddy Current Problems 248
ABSTRACT 248
KEYWORDS 248
INTRODUCTION 249
THE STRATEGIC DUAL IMAGE METHOD 249
CONCLUTION 258
REFERENCES 258
Chapter 22. Discussion About Analysis of Magnetic Field Containing Moving Conductive Media 260
ABSTRACT 260
KEYWORDS 260
INTRODUCTION 260
MAGNETIC FIELD CONTROL EQUATIONS CONTAINING MOVING CONDUCTIVE MEDIA 261
EFFECT OF VELOCITY V ON EDDY CURRENT Je 264
CONCLUSION 271
REFERENCES 271
APPENDIX 271
Chapter 23. Distribution of the Scalar Potential and its Role in 3-D Eddy Current Problems 272
ABSTRACT 272
INTRODUCTION 272
FIELD ANALYSIS EQUATIONS 273
FLUX CONCENTRATION APPARATUS 274
TWO PLATE TYPE MODEL 275
FOUR PLATE TYPE MODEL 277
BASIC CYLINDER TYPE MODEL 278
ROLE OF SCALAR POTENTIAL 280
CONCLUSION 281
REFERENCES 281
Chapter 24. Faster Eddy Current Computation Using Voronoi-Delaunay Transformation 282
ABSTRACT 282
KEYWORDS 282
INTRODUCTION 283
VORONOI-DELAUNAY TRANSFORMETION METHOD 283
CONCLUSION 292
REFERENCES 293
Part V: Micromechanics in Electromagnetic Field 294
Chapter 25. Conductive Polymers as Material Multipole Composites 296
ABSTRACT 296
KEYWORDS 296
CONDUCTIVE PLASTICS 296
CONDUCTIVE POLYMERIC COMPOUNDS 297
CONCLUSIONS 303
REFERENCES 304
Chapter 26. Micromechanics of Materials with Piezoelectric Effect Dislocations in Dielectrics 306
ABSTRACT 306
I. INTRODUCTION 306
II. Dislocations in piezoelectric crystals (Voigt's theory) 307
III. Dislocations in dielectrics with polarization gradient (Mindlin's theory [15]) 311
REFERENCES 315
Chapter 27. Transmission Loss of Electromagnetic Wave in Deformed Optical Fibers 316
ABSTRACT 316
KEYWORDS 316
ANALYSIS OF BENDING LOSSES IN SINGLE-MODE OPTICAL FIBERS 316
MODELLING OF TRANSMISSION LOSS IN DEFORMED FIBER AT LOW TEMPERATURE 319
EXPERIMENTS AND DISCUSSIONS ON TEMPERATURE INDUCED LOSS IN FIBERS 324
REFERENCES 327
Chapter 28. Paraelastic and Paraelectric Phenomena in Crystals 328
ABSTRACT 328
KEYWORDS 328
INTRODUCTION 328
FORMULATION OF THE MODEL 329
DETERMINATION OF TEMPERATURE CORRECTIONS 331
CONCLUDING REMARKS 334
REFERENCES 334
Chapter 29. Magnetic Field and Annealing Temperature Dependences of the Elasticity Moduli of the Iron Rich Metallic Glass Strips 336
ABSTRACT 336
KEYWORDS 336
INTRODUCTION 336
. E EFFECT 337
EXPERIMENTAL 338
RESULTS AND DISCUSSION 343
FINAL REMARKS AND CONCLUSIONS 346
REFERENCES 347
Chapter 30. Analysis of Electric Fields Due to a Moving Dislocation Loop in Anisotropic Piezoelectric Crystals 348
ABSTRACT 348
KEYWORDS 348
INTRODUCTION 348
EXPRESSION FOR A CIRCULAR DISLOCATION LOOP 349
NUMERICAL RESULTS 351
REFERENCES 354
Part VI: Applied Electromagnetics in Superconducting Materials 356
Chapter 31. Mechanical Characteristics of High Temperature Ceramic Superconductors 358
ABSTRACT 358
INTRODUCTION 358
MICROSTRUCTURAL CHARACTERISTICS 359
MECHANICAL PROPERTIES 361
REFERENCES 367
Chapter 32. Preparation and Characterization of Highly Oriented Bi-Sr-Ca-Cu-0 Superconducting Thin Films by Ion Beam Sputtering 372
ABSTRACT 372
KEYWORDS 372
INTRODUCTION 372
SAMPLE PREPARATION 373
TEMPERATURE DEPENDENCE OF THE RESISTIVITY 375
X-RAY DIFFRACTOMETRY 376
ELECTRON DIFFRACTOMETRY 379
SEM OBSERVATION AND EPMA ANALYSIS 379
CONCLUSIONS 381
ACKNOWLEDGMENT 381
REFERENCES 382
International Steering Committee 384
Author Index 386

Produkt-Details

• Erscheint lt. Verlag: 22.10.2013
• Sprache: englisch
• Themenwelt: Technik ► Elektrotechnik / Energietechnik
• Themenwelt: Technik ► Maschinenbau
• ISBN-10: 1-4832-8703-3 / 1483287033
• ISBN-13: 978-1-4832-8703-4 / 9781483287034