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xi | |
Preface |
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xv | |
Introduction |
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xvii | |
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Oscillating systems: Description and analysis |
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1 | (1) |
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Types of oscillatory motion |
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1 | (2) |
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Methods for signal analysis |
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3 | (1) |
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Fourier analysis (spectral analysis) |
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4 | (18) |
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Periodic signals. Fourier series |
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4 | (2) |
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Energy in a periodic oscillation. Mean square and RMS-values |
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6 | (2) |
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Frequency analysis of a periodic function (periodic signal) |
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8 | (1) |
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Transient signals. Fourier integral |
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8 | (1) |
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Energy in transient motion |
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9 | (1) |
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Examples of Fourier transforms |
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9 | (3) |
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Stochastic (random) motion. Fourier transform for a finite time T |
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12 | (2) |
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Discrete Fourier transform (DFT) |
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14 | (2) |
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Spectral analysis measurements |
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16 | (1) |
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Spectral analysis using fixed filters |
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17 | (2) |
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19 | (3) |
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Analysis in the time domain. Test signals |
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22 | (8) |
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Probability density function. Autocorrelation |
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23 | (2) |
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25 | (5) |
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30 | (1) |
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Excitation and response of dynamic systems |
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31 | (1) |
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32 | (1) |
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Transfer function. Definition and properties |
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33 | (6) |
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33 | (1) |
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Some important relationships |
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34 | (1) |
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Cross spectrum and coherence function |
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34 | (1) |
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Cross correlation. Determination of the impulse response |
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35 | (1) |
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Examples of transfer functions. Mechanical systems |
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36 | (1) |
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Driving point impedance and mobility |
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37 | (2) |
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Transfer functions. Simple mass-spring systems |
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39 | (9) |
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Free oscillations (vibrations) |
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39 | (2) |
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Free oscillations with hysteric damping |
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41 | (1) |
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Forced oscillations (vibrations) |
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42 | (2) |
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Transmitted force to the foundation (base) |
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44 | (3) |
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Response to a complex excitation |
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47 | (1) |
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Systems with several degrees of freedom |
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48 | (5) |
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Modelling systems using iumped elements |
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49 | (1) |
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Vibration isolation. The efficiency of isolating systems |
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50 | (2) |
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52 | (1) |
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Measurement and calculation methods |
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52 | (1) |
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53 | (2) |
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Waves in fluid and solid media |
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55 | (1) |
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55 | (6) |
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57 | (1) |
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Phase speed and particle velocity |
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57 | (2) |
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59 | (1) |
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Energy loss during propagation |
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59 | (1) |
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Wave propagation with viscous losses |
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60 | (1) |
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Sound intensity and sound power |
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61 | (2) |
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The generation of sound and sources of sound |
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63 | (11) |
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64 | (1) |
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Simple volume source. Monopole source |
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64 | (2) |
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66 | (2) |
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Rayleigh integral formulation |
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68 | (1) |
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Radiation from a piston having a circular cross section |
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69 | (2) |
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71 | (3) |
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Sound fields at boundary surfaces |
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74 | (9) |
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Sound incidence normal to a boundary surface |
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75 | (4) |
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Sound pressure in front of a boundary surface |
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79 | (1) |
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79 | (2) |
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Oblique sound incidence. Boundary between two media |
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81 | (2) |
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Standing waves. Resonance |
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83 | (3) |
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Wave types in solid media |
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86 | (15) |
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86 | (2) |
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88 | (1) |
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Bending waves (flexural waves) |
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89 | (1) |
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Free vibration of plates. One-dimensional case |
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90 | (1) |
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Eigenfunctions and eigenfrequencies (natural frequencies) of plates |
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91 | (2) |
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Eigenfrequencies of orthotropic plates |
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93 | (3) |
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Response to force excitation |
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96 | (2) |
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Modal density for bending waves on plates |
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98 | (1) |
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Internal energy losses in materials. Loss factor for bending waves |
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99 | (2) |
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101 | (2) |
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103 | (1) |
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Modelling of sound fields in rooms. Overview |
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103 | (3) |
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Models for small and large rooms |
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105 | (1) |
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Room acoustic parameters. Quality criteria |
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106 | (4) |
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107 | (1) |
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Other parameters based on the impulse response |
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108 | (2) |
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110 | (6) |
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The density of eigenfrequencies (modal density) |
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111 | (1) |
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Sound pressure in a room using a monopole source |
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112 | (2) |
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Impulse responses and transfer functions |
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114 | (2) |
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Statistical models. Diffuse-field model |
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116 | (17) |
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Classical diffuse-field model |
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117 | (2) |
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The build-up of the sound field. Sound power determination |
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119 | (1) |
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120 | (2) |
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The influence of air absorption |
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122 | (2) |
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Sound field composing direct and diffuse field |
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124 | (2) |
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Measurements of sound pressure levels and reverberation time |
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126 | (1) |
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Sound pressure level variance |
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126 | (4) |
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Reverberation time variance |
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130 | (1) |
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Procedures for measurements in stationary sound fields |
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131 | (2) |
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133 | (4) |
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134 | (1) |
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135 | (2) |
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137 | (1) |
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Scattering of sound energy |
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137 | (6) |
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Artificial diffusing elements |
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138 | (3) |
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Scattering by objects distributed in rooms |
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141 | (2) |
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Calculation models. Examples |
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143 | (8) |
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144 | (1) |
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145 | (1) |
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146 | (1) |
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Total energy density. Predicted results |
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147 | (2) |
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149 | (1) |
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149 | (1) |
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The model of Ondet and Barbry |
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150 | (1) |
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151 | (4) |
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155 | (1) |
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Main categories of absorber |
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156 | (2) |
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156 | (1) |
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157 | (1) |
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Helmholtz resonators using perforated plates |
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157 | (1) |
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Measurement methods for absorption and impedance |
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158 | (6) |
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Classical standing wave tube method (ISO 10534-1) |
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159 | (2) |
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Standing wave tube. Method using transfer function (ISO 10534-2) |
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161 | (2) |
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Reverberation room method (ISO 354) |
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163 | (1) |
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Modelling sound absorbers |
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164 | (13) |
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165 | (1) |
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The stiffness of a closed volume |
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165 | (2) |
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The acoustic mass in a tube |
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167 | (1) |
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168 | (2) |
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The Helmholtz resonator. An example using analogies |
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170 | (1) |
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Distributed Helmholtz resonators |
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171 | (5) |
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176 | (1) |
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177 | (19) |
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178 | (2) |
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Simple equivalent fluid models |
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180 | (3) |
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Absorption as a function of material parameters and dimensions |
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183 | (1) |
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Flow resistivity and thickness of sample |
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183 | (2) |
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Angle of incidence dependency. Diffuse field data |
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185 | (4) |
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Further models for materials with a stiff frame (skeleton) |
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189 | (1) |
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The model of Attenborough |
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190 | (1) |
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The model of Allard/Johnson |
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191 | (2) |
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Models for materials having an elastic frame (skeleton) |
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193 | (3) |
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Measurements of material parameters |
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196 | (5) |
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Airflow resistance and resistivity |
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196 | (2) |
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198 | (1) |
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Tortuosity, charactistic viscous and thermal lengths |
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199 | (2) |
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Prediction methods for impedance and absorption |
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201 | (4) |
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Modelling by transfer matrices |
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202 | (1) |
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Porous materials and panels |
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203 | (2) |
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205 | (2) |
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Sound transmission. Characterzation and properties of single walls and floors |
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207 | (1) |
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Characterizing airborne and impact sound insulation |
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208 | (10) |
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Transmission factor and sound reduction index |
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208 | (2) |
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Apparent sound reduction index |
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210 | (1) |
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Single number ratings and weighted sound reduction index |
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211 | (2) |
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Procedure for calculating the adaptation terms |
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213 | (2) |
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Impact sound pressure level |
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215 | (1) |
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Single number rating and adaptation terms for impact sound |
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216 | (2) |
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Sound radiation from building elements |
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218 | (14) |
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218 | (1) |
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Examples using idealized sources |
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219 | (1) |
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Sound radiation from an infinite large plate |
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220 | (3) |
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Critical frequency (coincidence frequency) |
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223 | (1) |
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Sound radiation from a finite size plate |
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224 | (2) |
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Radiation factor for a plate vibrating in a given mode |
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226 | (2) |
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Frequency averaged radiation factor |
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228 | (1) |
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Radiation factor by acoustic excitation |
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228 | (3) |
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Radiation factor for stiffened and/or perforated panels |
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231 | (1) |
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Bending wave generation. Impact sound transmission |
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232 | (8) |
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Power input by point forces. Velocity amplitude of plate |
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232 | (2) |
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Sound radiation by point force excitation |
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234 | (1) |
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235 | (1) |
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Total sound power emitted from a plate |
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236 | (2) |
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Impact sound. Standardized tapping machine |
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238 | (2) |
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Airborne sound transmission. Sound reduction index for single walls |
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240 | (17) |
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Sound transmitted through an infinitely large plate |
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241 | (1) |
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Sound reduction index of a plate characterized by its mass impedance |
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241 | (1) |
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Bending wave field on plate. Wall impedance |
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242 | (3) |
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Sound reduction index by diffuse sound incidence |
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245 | (1) |
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Sound transmission through a homogeneous single wall |
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246 | (2) |
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Formulae for calculation. Examples |
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248 | (3) |
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Sound transmission for inhomogeneous materials. Orthotropic panels |
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251 | (5) |
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Transmission through porous materials |
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256 | (1) |
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A relation between airborne and impact sound insulation |
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257 | (5) |
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Vibroacoustic reciprocity, background and applications |
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258 | (2) |
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Sound reduction index and impact sound pressure level: a relationship |
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260 | (2) |
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262 | (3) |
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Statistical energy analysis (SEA) |
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265 | (1) |
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266 | (4) |
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266 | (1) |
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267 | (3) |
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System with two subsystems |
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270 | (2) |
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Free hanging plate in a room |
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272 | (1) |
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SEA applications in building acoustics |
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272 | (2) |
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274 | (3) |
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Sound transmission through multilayer elements |
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277 | (1) |
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277 | (21) |
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Double wall without mechanical connections |
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278 | (5) |
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283 | (1) |
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Double walls with structural connections |
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284 | (2) |
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286 | (4) |
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Lightweight double leaf partitions with structural connections |
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290 | (6) |
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Heavy (massive ) double walls |
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296 | (2) |
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298 | (8) |
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Element with incompressible core material |
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299 | (4) |
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Sandwich element with compressible core |
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303 | (3) |
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Impact sound insulation improvements |
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306 | (15) |
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Floating floors. Predicting improvements in impact sound insulation |
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307 | (4) |
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Lightweight floating floors |
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311 | (2) |
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Lightweight primary floor |
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313 | (2) |
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The influence of structural connections (sound bridges) |
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315 | (1) |
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Properties of elastic layers |
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316 | (2) |
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318 | (3) |
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321 | (4) |
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Sound transmission in buildings. Flanking sound transmission |
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325 | (1) |
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Sound reduction index combining multiple surfaces |
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326 | (17) |
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Apertures in partitions, ``sound leaks'' |
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327 | (5) |
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Sound transmission involving duct systems |
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332 | (4) |
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Sound transmission involving suspended ceilings |
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336 | (1) |
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337 | (1) |
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338 | (3) |
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341 | (1) |
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Apparent sound reduction index with suspended ceiling |
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342 | (1) |
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Flanking transmission. Apparent sound reduction index |
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343 | (14) |
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Flanking sound reduction index |
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345 | (3) |
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Vibration reduction index |
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348 | (1) |
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Bending wave transmission across plate intersections |
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348 | (2) |
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Vibration reduction index K |
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350 | (2) |
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352 | (1) |
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Complete model for calculating the sound reduction index |
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353 | (4) |
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357 | (2) |
Subject index |
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359 | |