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

Acoustic design of boundary segments in aircraft fuselages using topology optimization and a specialized acoustic pressure function

Radestock, Martin und Rose, Michael und Monner, Hans Peter (2017) Acoustic design of boundary segments in aircraft fuselages using topology optimization and a specialized acoustic pressure function. In: Proceedings of SPIE (10164). SPIE 2017, 2017-03-25 - 2017-03-29, Portland, Oregon/USA. doi: 10.1117/12.2259952.

Dieses Archiv kann nicht den Volltext zur Verfügung stellen.

Kurzfassung

In most aviation applications, a major cost benefit can be achieved by a reduction of the system weight. Often the acoustic properties of the fuselage structure are not in the focus of the primary design process, too. A final correction of poor acoustic properties is usually done using insulation mats in the chamber between the primary and secondary shell. It is plausible that a more sophisticated material distribution in that area can result in a substantially reduced weight. Topology optimization is a well-known approach to reduce material of compliant structures. In this paper an adaption of this method to acoustic problems is investigated. The gap full of insulation mats is suitably parameterized to achieve different material distributions. To find advantageous configurations, the objective in the underlying topology optimization is chosen to obtain good acoustic pressure patterns in the aircraft cabin. An important task in the optimization is an adequate Finite Element model of the system. This can usually not be obtained from commercially available programs due to the lack of special sensitivity data with respect to the design parameters. Therefore an appropriate implementation of the algorithm has been done, exploiting the vector and matrix capabilities in the MATLAB environment. Finally some new aspects of the Finite Element implementation will also be presented, since they are interesting on its own and can be generalized to efficiently solve other partial differential equations as well.

elib-URL des Eintrags:https://elib.dlr.de/111779/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Acoustic design of boundary segments in aircraft fuselages using topology optimization and a specialized acoustic pressure function
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Radestock, MartinMartin.Radestock (at) dlr.dehttps://orcid.org/0000-0002-9918-3315138665801
Rose, Michaelmichael.rose (at) dlr.dehttps://orcid.org/0000-0002-8311-3638NICHT SPEZIFIZIERT
Monner, Hans Peterhans.monner (at) dlr.dehttps://orcid.org/0000-0002-5897-2422NICHT SPEZIFIZIERT
Datum:2017
Erschienen in:Proceedings of SPIE
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Ja
DOI:10.1117/12.2259952
Status:veröffentlicht
Stichwörter:topology optimization, acoustic design
Veranstaltungstitel:SPIE 2017
Veranstaltungsort:Portland, Oregon/USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:25 März 2017
Veranstaltungsende:29 März 2017
Veranstalter :SPIE International Office
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Luftverkehrsmanagement und Flugbetrieb
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AO - Air Traffic Management and Operation
DLR - Teilgebiet (Projekt, Vorhaben):L - Luftverkehrskonzepte und Betrieb (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Adaptronik
Hinterlegt von: Rose, Dr.rer.nat. Michael
Hinterlegt am:03 Apr 2017 07:28
Letzte Änderung:24 Apr 2024 20:16

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

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.