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Influence of Design and Production Parameters on the Geometrical Quality of an Aircraft Leading Edge for Natural Laminar Flow

Steffen, Olaf (2018) Influence of Design and Production Parameters on the Geometrical Quality of an Aircraft Leading Edge for Natural Laminar Flow. 6th Aircraft Structural Design Conference, 09.-11. Okt. 2018, Bristol, UK.

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Abstract

Aircraft structures developed for sustained laminar flow show a great potential for fuel savings. To exploit this potential, not only the individual part has to be considered, but joint designs developed to address the challenges of the laminar flow environment. Originating in a specific leading edge design, this work investigates an integrated landing design. A GFRP wedge inlay is introduced to form the step in the structure and provide a smooth redirection of the load carrying fibres to the inside of the structure. Special attention is given to the step itself. A parametric study is presented, using different parent laminates, inlay types, processes and step geometries. Resulting geometrical details and deviations at the step and the landing are investigated via sections using a digital microscope and attributed to design and process parameters.

Item URL in elib:https://elib.dlr.de/124104/
Document Type:Conference or Workshop Item (Speech)
Title:Influence of Design and Production Parameters on the Geometrical Quality of an Aircraft Leading Edge for Natural Laminar Flow
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Steffen, Olafolaf.steffen (at) dlr.deUNSPECIFIED
Date:October 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Laminarflügel, Laminar Flow, Laminar Leading Edge, Leading Edge, Laminarflügel, Floating Lap Joint, Integrated Landing Joint, Integrated Lap Joint
Event Title:6th Aircraft Structural Design Conference
Event Location:Bristol, UK
Event Type:international Conference
Event Dates:09.-11. Okt. 2018
Organizer:Royal Aeronautical Society
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems
Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Steffen, Olaf
Deposited On:13 Dec 2018 06:28
Last Modified:13 Dec 2018 06:28

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