Engineering Acoustics - Jorge P Arenas

. .

Résumé :

Series Preface xix

Preface xxi

Acknowledgements xxiii

1 Introduction 1

1.1 Introduction 1

1.2 Types of Noise and Vibration Signals 1

1.3 Frequency Analysis 3

1.4 Frequency Analysis Using Filters 10

1.5 Fast Fourier Transform Analysis 15

2 Vibration of Simple and Continuous Systems 19

2.1 Introduction 19

2.2 Simple Harmonic Motion 19

2.3 Vibrating Systems 23

2.4 Multi-Degree of Freedom Systems 30

2.5 Continuous Systems 38

3 Sound Generation and Propagation 49

3.1 Introduction 49

3.2 Wave Motion 49

3.3 Plane Sound Waves 50

3.4 Decibels and Levels 56

3.5 Three-dimensional Wave Equation 60

3.6 Sources of Sound 61

3.7 Sound Power of Sources 63

3.8 Sound Sources Above a Rigid Hard Surface 67

3.9 Directivity 68

3.10 Line Sources 71

3.11 Reflection, Refraction, Scattering, and Diffraction 72

3.12 Ray Acoustics 74

3.13 Energy Acoustics 75

3.14 Near Field, Far Field, Direct Field, and Reverberant Field 76

3.15 Room Equation 80

3.16 Sound Radiation From Idealized Structures 82

3.17 Standing Waves 85

3.18 Waveguides 91

3.19 Other Approaches 92

4 Human Hearing, Speech and Psychoacoustics 95

4.1 Introduction 95

4.2 Construction of Ear and Its Working 95

4.3 Subjective Response 99

4.4 Hearing Loss and Diseases (Disorders) 116

4.5 Speech Production 118

5 Effects of Noise, Vibration, and Shock on People 125

5.1 Introduction 125

5.2 Sleep Disturbance 125

5.3 Annoyance 126

5.4 Cardiovascular Effects 127

5.5 Cognitive Impairment 129

5.6 Infrasound, Low-Frequency Noise, and Ultrasound 130

5.7 Intense Noise and Hearing Loss 131

5.8 Occupational Noise Regulations 134

5.9 Hearing Protection 140

5.10 Effects of Vibration on People 144

5.11 Metrics to Evaluate Effects of Vibration and Shock on People 147

6 Description, Criteria, and Procedures Used to Determine Human Response to Noise and Vibration 155

6.1 Introduction 155

6.2 Loudness and Annoyance 155

6.3 Loudness and Loudness Level 156

6.4 Noisiness and Perceived Noise Level 157

6.5 Articulation Index and Speech Intelligibility Index 160

6.6 Speech Interference Level 161

6.7 Indoor Noise Criteria 162

6.8 Equivalent Continuous SPL 166

6.9 Sound Exposure Level 167

6.10 Day-Night Equivalent SPL 168

6.11 Percentile SPLs 170

6.12 Evaluation of Aircraft Noise 170

6.13 Evaluation of Traffic Noise 172

6.14 Evaluation of Community Noise 174

6.15 Human Response 175

6.16 Noise Criteria and Noise Regulations 180

6.17 Human Vibration Criteria 182

7 Noise and Vibration Transducers, Signal Processing, Analysis, and Measurements 189

7.1 Introduction 189

7.2 Typical Measurement Systems 189

7.3 Transducers 190

7.4 Noise Measurements 195

7.5 Vibration Measurements 202

7.6 Signal Analysis, Data Processing, and Specialized Noise And Vibration Measurements 211

8 Sound Intensity, Measurements and Determination of Sound Power, Noise Source Identification, and Transmission Loss 217

8.1 Introduction 217

8.2 Historical Developments in the Measurement of Sound Pressure and Sound Intensity 217

8.3 Theoretical Background 221

8.4 Characteristics of Sound Fields 223

8.5 Active and Reactive Sound Fields 228

8.6 Measurement of Sound Intensity 232

8.7 Applications 253

8.8 Comparison...

Biographie:
..

Sommaire:

Malcolm J. Crocker obtained his Bachelors degree in Aeronautical Engineering and Masters degree in Noise and Vibration Studies from Southampton University and his PhD in Acoustics from Liverpool University. He worked at Supermarine and Vickers Armstrong Aircraft, UK, and at Wyle Labs, Huntsville, USA on the Lunar Saturn V launch noise. He has held full professor positions at Purdue, Sydney, and Auburn. At Auburn he served as Mechanical Engineering Department Head and Distinguished University Professor. He has published over 300 papers in refereed journals and conference proceedings and written eight books including the award-winning Encyclopedia of Acoustics, Handbook of Acoustics, and Handbook of Noise and Vibration Control for Wiley. Crocker served as one of the four founding directors of I-INCE and one of the four founding directors of IIAV. He was general chair of INTER-NOISE 72. He served for 40 years as Editor-in-Chief of the Noise Control Engineering Journal and the International Journal of Acoustics and Vibration. He has numerous awards including three honorary doctorates in Russia and Romania and is fellow and/or distinguished fellow of ASA, IIAV and ASME. He received the 2017 ASME Per Bruel Gold Medal for contributions to noise control and acoustics.

Jorge P. Arenas, Professor and former director of the Institute of Acoustics, University Austral of Chile, and Fellow of the International Institute of Acoustics and Vibration (IIAV). He received a degree in Acoustical Engineering in 1988 and his MSc in Physics in 1996 both from Univ. Austral, Chile. In 2001, he obtained a PhD in Mechanical Engineering from Auburn University in the USA. He also gained professional experience at the Institute of Acoustics in Madrid, Spain, and at the University of Southampton in the UK. He has served as the President of the IIAV (2016-2018) and he is currently the Editor-in-Chief of the International Journal of Acoustics and Vibration and a member of the editorial board of the journals Shock and Vibration and Applied Acoustics....