The Hilbert-Huang Transform in Engineering

dk342x_c000......Page 1
Hilbert-Huang Transform in Engineering, The......Page 2
Preface......Page 4
Acknowledgments......Page 6
Contributors......Page 7
Contents......Page 9
1.1 INTRODUCTION......Page 11
Table of Contents......Page 0
1.2 THE HILBERT-HUANG TRANSFORM......Page 19
1.3.1 THE NORMALIZED HILBERT TRANSFORM......Page 26
1.3.2 THE CONFIDENCE LIMIT......Page 29
1.3.3 THE STATISTICAL SIGNIFICANCE OF IMFS......Page 31
REFERENCES......Page 32
CONTENTS......Page 34
3.1 INTRODUCTION......Page 35
3.2 ANALYSES OF TOPEX/POSEIDON SEA LEVEL ANOMALY INTERANNUAL VARIATION USING HHT AND EOF......Page 37
3.3 APPLICATION OF HHT TO OCEAN COLOR REMOTE SENSING OF THE DELAWARE BAY......Page 39
3.4 MEDITERRANEAN OUTFLOW AND MEDDIES (O & M) FROM SATELLITE MULTISENSOR REMOTE SENSING......Page 46
3.5 CONCLUSION......Page 53
REFERENCES......Page 54
CONTENTS......Page 57
4.2 THE HUANG-HILBERT SPECTRAL ANALYSIS......Page 58
4.3.1 FIELD MEASUREMENT......Page 59
4.3.2 NUMERICAL SIMULATIONS......Page 62
4.4.1 RESOLUTION AND NONLINEARITY......Page 65
4.4.2 EDGE EFFECT......Page 67
REFERENCES......Page 68
CONTENTS......Page 70
5.1 INTRODUCTION......Page 71
5.2 FIELD DATA......Page 72
5.3 CONVENTIONAL METHODS FOR WAVE DATA ANALYSIS......Page 73
5.4 HILBERT-HUANG TRANSFORM METHOD......Page 79
5.5 APPLICATION OF THE HHT METHOD......Page 81
5.5.1 OFFSHORE WAVES DURING DIFFERENT SEA STAGES......Page 85
5.5.2 CROSS- SHORE TRANSFORMATION OF SEA WAVES......Page 87
5.6 CONCLUSIONS......Page 90
REFERENCES......Page 91
CONTENTS......Page 93
6.1 INTRODUCTION......Page 94
6.2 EMPIRICAL MODE DECOMPOSITION......Page 97
6.3 EMD-BASED SIGNAL PROCESSING......Page 98
6.4 EXPERIMENTAL VALIDATION USING TOWED-SOURCE SIGNALS......Page 107
6.5 CONCLUSION......Page 109
REFERENCES......Page 110
CONTENTS......Page 112
7.1 INTRODUCTION......Page 113
7.2.3 COHERENT STRUCTURES......Page 114
7.3 CONCLUSIONS......Page 121
REFERENCES......Page 128
CONTENTS......Page 129
8.1 INTRODUCTION......Page 130
8.2 SYMPTOMS OF SOIL NONLINEARITY......Page 131
8.3 FOURIER-BASED APPROACH FOR CHARACTERIZING NONLINEARITY......Page 132
8.4 HHT-BASED APPROACH FOR CHARACTERIZING NONLINEARITY......Page 136
8.5 APPLICATIONS TO 2001 NISQUALLY EARTHQUAKE DATA......Page 142
8.5.1 DETECTION OF NONLINEAR SOIL SITES......Page 143
8.5.2 HHT-BASED FACTOR OF SITE AMPLIFICATION......Page 146
8.5.3 INFLUENCES OF WINDOW LENGTH OF DATA......Page 148
8.5.4 COMPARISON OF HHT- AND FOURIER-BASED FACTORS FOR SITE AMPLIFICATION......Page 150
8.5.5 HHT-BASED FACTOR FOR SITE DAMPING......Page 154
8.6 CONCLUDING REMARKS AND DISCUSSION......Page 155
REFERENCES......Page 157
9.1 INTRODUCTION......Page 160
9.2 HILBERT-HUANG TRANSFORM (HHT)......Page 163
9.3 IMF RECOMBINATION METHOD......Page 166
9.4 IMPROVED WEN-YEH METHOD......Page 169
9.5 CONCLUSIONS......Page 172
REFERENCES......Page 176
APPENDIX: RELATION BETWEEN HILBERT MARGINAL SPECTRUM AND FOURIER ENERGY SPECTRUM......Page 178
CONTENTS......Page 182
10.1 INTRODUCTION......Page 183
10.2 HILBERT-HUANG TRANSFORM......Page 184
10.3.1 LOCATING CRACK IN ALUMINUM BEAM USING HHT......Page 185
10.3.2 DETECTION OF EDGES IN ALUMINUM PLATE......Page 188
10.3.3 DETERMINATION OF MODAL FREQUENCIES OF ALUMINUM BEAM......Page 191
10.4 CONCLUDING REMARKS......Page 205
ACKNOWLEDGMENTS......Page 208
REFERENCES......Page 212
CONTENTS......Page 214
11.1 INTRODUCTION......Page 215
11.2 THE HILBERT-HUANG TRANSFORM......Page 218
11.3 MOLECULAR DYNAMICS......Page 220
11.4 REVERSIBLE DIGITALLY FILTERED MOLECULAR DYNAMICS......Page 223
11.6 CONCLUSIONS......Page 231
REFERENCES......Page 232
12.1 INTRODUCTION......Page 235
12.2 DECOMPOSITION OF INTERMITTENT SMALL-SCALE FLUCTUATIONS FROM THE LARGE WAVE......Page 237
12.3 METHOD FOR DECOMPOSING WAVE GROUPS......Page 240
12.4 VALIDATIONS......Page 242
REFERENCES......Page 248
CONTENTS......Page 249
13.2.1 THE HILBERT-HUANG TRANSFORM......Page 250
13.2.2 STARTING POINT......Page 256
13.3.2 CHEMISTRY AND CHEMICAL ENGINEERING......Page 257
13.3.4 METEOROLOGICAL AND ATMOSPHERIC APPLICATIONS......Page 258
13.3.5 OCEAN ENGINEERING......Page 259
13.3.6 SEISMIC STUDIES......Page 260
13.3.7 STRUCTURAL APPLICATIONS......Page 263
13.3.9 SYSTEM IDENTIFICATION......Page 264
13.4 SOME LIMITATIONS......Page 265
13.5 POTENTIAL FUTURE RESEARCH......Page 266
REFERENCES......Page 267
13A.2 HYBRID METHOD......Page 270
13A.3 BIDIMENSIONAL EMD......Page 271
REFERENCES......Page 273