Semi-Empirical Airframe Noise Prediction Model. Meeting Paper AIAA-1976-527, Research Engineering, NASA Dryden Flight Research Center
Hersh, Alan S. and Putnam, Terrill W. and Lasagna, Paul L. and Burcham Jr., Frank W. (1976) Semi-Empirical Airframe Noise Prediction Model. Meeting Paper AIAA-1976-527, Research Engineering, NASA Dryden Flight Research Center.
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Abstract
A semi-empirical maximum overall sound pressure level (OASPL) airframe noise model was derived. The noise radiated from aircraft wings and flaps was modeled by using the trailing-edge diffracted quadrupole sound theory derived by Ffowcs Williams and Hall. The noise radiated from the landing gear was modeled by using the acoustic dipole sound theory derived by Curle. The model was successfully correlated with maximum OASPL flyover noise measurements obtained at the NASA Dryden Flight Research Center for three jet aircraft-the Lockheed JetStar, the Convair 990, and the Boeing 747 aircraft.
| EPrint Type: | Other |
|---|---|
| Keywords: | Boeing 747 aircraft, Convair 990 aircraft, Lockheed JetStar aircraft, Overall sound pressure level (OASPL) |
| Subjects: | Aircraft/Project: Boeing 747 Aircraft/Project: Convair 990 Aircraft/Project: C-140 JetStar |
| ID Code: | 1640 |
| Deposited On: | 26 June 2007 |
| Additional Information: | 8 pages. AIAA 3rd Aeroacoustics Conference, Palo Alto, California, July 20-23, 1976. |
