Elements of aviation acoustics

Elements of aviation acousticsQuieting cabin and flight deck noise, and reducing the impact of noise oncommununities near airports are matters of great importance toair-manufacturers and airline operators for already more than four decades.Undoubtedly, knowledge of both aeronautics and acoustics is essential fora clear understanding of any aviation noise problem. Such understandmg isa necessary prerequisite to the control of interior and exterior noise.In view of the importance of education in dealing with noise control, thisbook is devoted to the branch of aerospace engineering known as aviationacoustics. The book contains twelve chapters and three appendixes whichoriginate from an annual course on airplane noise given by the author toaerospace engineering students at Delft University of Technology (DUI).The book is intended to be useful to undergraduate students of aerospaceengineering, and also to researchers and practicing engineers who wish torevive their understanding of the topic. The text assumes litde or no previous knowledge of acoustics.ContentsPreface • 1. Basic facts • 2. Dynamics of sound waves • 3. Elementarysources • 4. Propagation of sound in the atmosphere • 5. Sound inenclosures • 6. Attenuation of sound in ducts • 7. Frequency spectra • 8.Ground reflection • 9. Noise measures • 10. Noise certification • 11.Effects of forward motion • 12. Airplane noise sources • References •Appendix A. Noy values • Appendix B. Si-units • Appendix C. Noise zoningin the netherlands • Appendix D. Lateral noise attenuation • Appendix E.Noise abatement procedures • Appendix F. Glossary • Index http://www.vssd.nl/hlf/ae03.htm