Noise Control : From Concept to Application book cover
1st Edition

Noise Control
From Concept to Application

ISBN 9780415358613
Published July 19, 2005 by CRC Press
432 Pages 150 B/W Illustrations

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Book Description

Noise Control: From Concept to Application presents the basic principles of noise control and their practical application to real problems. Numerous examples are worked out in detail and are used to illustrate the concepts in the book. There are few derivations of equations, but reference is made to texts from which these are derived. An excellent learning tool for students and practitioners, this guide to noise control will enable readers to use their knowledge to solve a wide range of industrial noise control problems. Working from basic scientific principles, the author shows how an understanding of sound can be applied to real-world settings.

Table of Contents

1. Fundamentals  Introduction.  Noise Control Strategies.  Acoustic Field Variables and the Wave Equation.  Plane and Spherical Waves.  Mean Square Quantities.  Energy Density.  Sound Density.  Sound Power.  Decibels.  Spectra.  Loudness.  Combining Sound Pressures.  Impedance  2. Noise Criteria and Basic Instrumentation  Introduction.  Hearing Loss.  Hearing Damage Risk.  Implementing a Hearing Conservation Program.  Speech Interference Criteria.  Psychological Effects of Noise.  Ambient Noise Level Specification.  Environmental Noise Level Criteria.  Environmental Noise Surveys.  Measuring Instrumentation  3. Sound Sources and Sound Power Measurement  Introduction.  Simple Source.  Dipole Source.  Quadrupole Source.  Line Source.  Incoherent Plane Radiator.  Directivity.  Reflectional Effects.  Determination of Sound Power  4. Sound Propagation Outdoors and in Rooms  Introduction.  Sound Propagation Outdoors.  Sound Propagation in Rooms  5. Sound Absorbing Materials: Properties and their Measurement  Flow Resistance.  Sound Propagation in Porous Media.  Measurement and Calculation of Absorption Coefficients  6. Partitions, Enclosures and Barriers  Introduction.  Sound Transmission Through Partitions.  Composite Transmission Loss.  Enclosures.  Barriers  7. Muffling Devices  Introduction.  Measures of Performance.  Diffusers as Muffling Devices.  Acoustic Impedance.  Lumped Element Devices.  Reactive Devices.  Lined Ducts.  Duct Bends.  Unlined Ducts.  Effect of Duct End Reflections.  Duct Break-Out Noise.  Lined Plenum Attentuator.  Directivity of Exhaust Ducts.  Appendix.  References

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Colin Hansen is Professor and head of the Department of Mechanical Engineering at The University of Adelaide, Australia and past-President of the International Institute of Acoustics and Vibration. He has had extensive industrial experience as a noise and vibration consultant and is also author "Understanding Active Noise Cancellation" and co-author "Engineering Noise Control, which are both also published by Spon Press.