elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English Sonntag, 29. Dezember 2024
Schriftgröße: [-] Text [+]

Sound quality assessment of a medium-range aircraft with enhanced fan-noise shielding design

Greco, Gil F. und Bertsch, Lothar und Ring, Tobias P. und Langer, Sabine C. (2021) Sound quality assessment of a medium-range aircraft with enhanced fan-noise shielding design. CEAS Aeronautical Journal, Seiten 1-13. Springer. doi: 10.1007/s13272-021-00515-9. ISSN 1869-5582.

[img] PDF - Verlagsversion (veröffentlichte Fassung)
1MB

Offizielle URL: https://doi.org/10.1007/s13272-021-00515-9

Kurzfassung

The investigation of technologies that can improve the sustainability of the air transport system requires not only the development of alternative fuel concepts and novel vehicle technologies but also the definition of appropriate assessment strategies. Regarding noise, the assessment should reflect the situation of communities living near airports, i.e., not only addressing sound levels but also accounting for the annoyance caused by aircraft noise. For this purpose, conventional A-weighted sound pressure level metrics provide initial but limited information as the level- and frequency-dependency of the human hearing is accounted for in a simplified manner. Ideally, subjective evaluations are required to adequately quantify the perceived short-term annoyance associated with aircraft noise. However, listening tests are time-consuming and not suitable to be applied during the conceptual aircraft design stage, where a large solution space needs to be explored. Aiming at bridging this gap, this work presents a methodology for the sound quality assessment of computational aircraft noise predictions, which is hereby conducted in terms of objective psychoacoustic metrics. The proposed methodology is applied to a novel medium-range vehicle with fan noise shielding architecture during take-off and landing procedures. The relevance of individual sound sources, i.e., airframe and engine noise contributions, and their dependencies on the aircraft architecture and flight procedures are assessed in terms of loudness, sharpness, and tonality. Moreover, the methodology is steered towards community noise assessment, where the impacts on short-term annoyance brought by the novel aircraft design are analysed. The assessment is based on the modified psychoacoustic annoyance, a metric that provides a quantitative description of human annoyance as a combination of different hearing sensations. The present work is understood as an essential step towards low-annoyance aircraft design.

elib-URL des Eintrags:https://elib.dlr.de/141953/
Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen:Electronic ISSN 1869-5590 Print ISSN 1869-5582
Titel:Sound quality assessment of a medium-range aircraft with enhanced fan-noise shielding design
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iD
Greco, Gil F.g.felix-greco (at) tu-braunschweig.de
Bertsch, LotharLothar.Bertsch (at) dlr.dehttps://orcid.org/0000-0003-2780-2858
Ring, Tobias P.t.ring (at) tu-braunschweig.de
Langer, Sabine C.s.langer (at) tu-braunschweig.de
Datum:21 April 2021
Erschienen in:CEAS Aeronautical Journal
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
DOI:10.1007/s13272-021-00515-9
Seitenbereich:Seiten 1-13
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der HerausgeberHerausgeber-ORCID-iD
Springer
Verlag:Springer
ISSN:1869-5582
Status:veröffentlicht
Stichwörter:Aircraft noise, Environmental acoustics, Sound quality, Community noise, Short-term annoyance
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Luftverkehr und Auswirkungen
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AI - Luftverkehr und Auswirkungen
DLR - Teilgebiet (Projekt, Vorhaben):L - Lufttransportbetrieb und Folgenabschätzung
Standort: Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Hubschrauber, GO
Hinterlegt von: Carter, Beatrice
Hinterlegt am:14 Jul 2021 07:49
Letzte Änderung:14 Jul 2021 07:49

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Einige Felder oben sind zurzeit ausgeblendet: Alle Felder anzeigen
Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.