Duct Acoustics

Preface; 1. Some preliminaries; 2. Introduction to acoustic block diagrams; 3. Transmission of low frequency sound waves in ducts; 4. Transmission of one-dimensional waves in coupled ducts; 5. Resonators, expansion chambers and silencers; 6. Multi-modal sound propagation in ducts; 7. Transmission of wave modes in coupled ducts; 8. Effects of viscosity and thermal conductity; 9. Reflection and radiation at open duct terminations; 10. Modeling of ducted acoustic sources; 11. Radiated sound pressure prediction; 12. Measurement methods; 13. System search and optimization; Appendix a: basic equations of fluid motion; Appendix b: acoustic properties of rigid-frame fibrous materials; References; Appendix c: impedance of compact apertures; Index.

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• Mecânica dos sólidos
• Mecânica dos fluidos
• Mecânica dos fluidos
• Mecânica ondulatória (vibração e acústica)

duct acoustics; acoustics of ducts and mufflers; duct aeroacoustics; design of mufflers and silencers; resonators; expansion chambers; exhaust mufflers; industrial silencers; vent silencers; dissipative silencers