Active Control of Noise and VibrationThis major work is the first to treat the active control of both sound and vibration in a unified way. It outlines the fundamental concepts, explains how a reliable and stable system can be designed and implemented, and details the pitfalls . It covers sound in ducts, sound radiation, sound transmission into enclosures, structural vibration and isolation, electronic control system design, and sensors and actuators. |
Contents
Fundamentals of acoustics and vibration | 13 |
2 | 25 |
Spectral analysis | 190 |
Modal analysis | 211 |
Modern control review | 260 |
system response | 305 |
Feedforward control system design | 374 |
Active control of noise propagating in ducts | 553 |
Active control of enclosed sound fields | 817 |
Feedforward control of vibration in beams and plates | 924 |
Feedback control of flexible structures described | 989 |
Vibration isolation | 1043 |
A few electronic implementation issues | 1162 |
Sound sources and sound sensors | 1173 |
Vibration sensors and vibration sources | 1196 |
Appendix A brief review of some results of linear algebra | 1246 |
Common terms and phrases
accelerometers acoustic mode acoustic potential energy acoustic power output acoustic pressure active control system active noise control amplitude analysis beam cancellation path transfer Chapter complex components considered control signal control source volume convergence coefficient damping defined derived discussed displacement duct eigenvalues error criterion error sensing locations error sensor error signal excitation expression finite finite impulse response FIR filter flexural wave gradient gradient descent Green's function harmonic impedance implementation input LMS algorithm longitudinal wave matrix mean square error measured microphone minimizing mode shape mode shape functions neural network node obtained optimal optimum control source path transfer function phase plate power transmission primary and control primary source problem propagation radiated acoustic power radiation efficiency reduction resonance frequencies result shown in Fig sound field sound pressure source volume velocity structural modes transformed vector vibration control sources wavelength wavenumber weight coefficient zero дх