Prediction of sound exposure caused by a landing motor glider with recuperating propellers
- This paper presents an approach to predicting the sound exposure on the ground caused by a landing aircraft with recuperating propellers. The noise source along the trajectory of a flight specified for a steeper approach is simulated based on measurements of sound power levels and additional parameters of a single propeller placed in a wind tunnel. To validate the measured data/measurement results, these simulations are also supported by overflight measurements of a test aircraft. It is shown that the simple source models of propellers do not provide fully satisfactory results since the sound levels are estimated too low. Nevertheless, with a further reference comparison, margins for an acceptable increase in the sound power level of the aircraft on its now steeper approach path could be estimated. Thus, in this case, a +7 dB increase in SWL would not increase the SEL compared to the conventional approach within only 2 km ahead of the airfield.
| Verfasserangaben: | Sebastian Hille, Eike Stumpf, Joscha MayntzORCiD, Peter Dahmann |
|---|---|
| DOI: | https://doi.org/10.2514/6.2023-0211 |
| Titel des übergeordneten Werkes (Englisch): | AIAA SCITECH 2023 Forum |
| Verlag: | AIAA |
| Dokumentart: | Konferenzveröffentlichung |
| Sprache: | Englisch |
| Erscheinungsjahr: | 2023 |
| Datum der Publikation (Server): | 07.03.2023 |
| Bemerkung: | AIAA SCITECH 2023 Forum, 23-27 January 2023, National Harbor, MD & Online |
| Link: | https://doi.org/10.2514/6.2023-0211 |
| Zugriffsart: | bezahl |
| Fachbereiche und Einrichtungen: | FH Aachen / Fachbereich Luft- und Raumfahrttechnik |
| collections: | Verlag / American Institute of Aeronautics and Astronautics (AIAA) |
