Noises inside a cockpit and a cabin and airborne and structureborne noise are summarized with the use of graphics. The necessity of having a model of acoustic and vibration transmission is outlined. The history and complexity of models, fuselage test in laboratory and a comparison of theory and experiment are discussed. The modal method is concluded to give a good understanding of the transmission phenomena through an aircraft fuselage in a 0.15 to 2.3 frequency range. The ease of use of these methods allow parametrical studies for preliminary design for noise reduction purpose.
Noise inside Aircraft Fuselages Subjected to Airborne Excitations
1991
26 pages
Report
No indication
English