DGLR-Publikationsdatenbank - Detailansicht
Titel:
Experiments on the Active Control of a Turbofan Inlet Noise Using Compact, Lightweight Inlet Control and Error Transducers
Autor(en):
R.A. Burdisso, C.R. Fuller
Zusammenfassung:
In this paper the active noise control of turbofan tonal inlet noise using lightweight, compact control sound sources and distributed pressure sensors mounted in the inlet wall is demonstrated on an operational Pratt and Whitney JT15D engine. Furthermore, by the use of an optimal selection of the control configuration, control spillover problems observed in previous experiments were eliminated and global reductions of up to 5 dB of the blade passage frequency achieved with an electrical power consumption of approximately 10 watts. The work thus demonstrates that active control of turbofan inlet noise using inlet control transducers is certainly feasible for aerospace applications and achievable in practice with realistic transducers.
Veranstaltung:
First Joint CEAS/AIAA Aeroacoustics Conference, München, 1995
Medientyp:
Conference Paper
Sprache:
englisch
Format:
21,0 x 29,7 cm, 9 Seiten
Veröffentlicht:
DGLR-Bericht, 1995, 1995-01, First Joint CEAS/AIAA Aeroacoustics Conference - Proceedings; S.177-185; 1995; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn
Preis:
NA
ISBN:
ISSN:
Kommentar:
Klassifikation:
Stichworte zum Inhalt:
aeroacoustics
Verfügbarkeit:
Bibliothek
Veröffentlicht:
1995
Dieses Dokument ist Teil einer übergeordneten Publikation:
First Joint CEAS/AIAA Aeroacoustics Conference - Proceedings