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Shape distortion analysis of a complex shaped wing skin section
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
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2015 (English)In: ICCM International Conferences on Composite Materials, International Committee on Composite Materials , 2015Conference paper, Published paper (Refereed)
Abstract [en]

In the Clean Sky program SFWA (Smart Fixed Wing Aircraft) [1], which is a major European research program, the main objective is to develop an all-new low drag wing. This wing is aimed to significantly reduce fuel consumption and thereby contribute to a greener environment. The Clean Sky program is an important stepping stone to be able to reach the goals of the ambitious ACARE (Advisory Council for Aeronautics Research in Europe) targets. To meet the goals, a substantial part of the wing must have laminar air flow to reduce total drag of the aircraft. To achieve these goals Saab has developed a co-cured fully integrated carbon fibre upper wing-cover, including leading edge, skin, stringers and rib-feet. This complex structure highlights the needs for accurate shape distortion analysis and tool compensation, to be able to handle global distortion and local waviness of the wing during curing. Since the upper wing-cover contains more than 100 co-cured structural elements there was a great challenge to deal with this assembled structure both from an analysis point of view, and from a manufacturing standpoint. This paper covers the analysis methodology and tooling technology used, to be able to produce this complex shaped wing demonstrator to the high standard required to meet the goals for the Clean Sky program SFWA. Results from the shape distortion analysis as well as the design and manufacturing concept of the final wing skin structure are demonstrated. 

Place, publisher, year, edition, pages
International Committee on Composite Materials , 2015.
Keywords [en]
Clean Sky, Complex wing structure, Shape distortion analysis, Tooling
National Category
Mechanical Engineering Aerospace Engineering
Identifiers
URN: urn:nbn:se:kth:diva-236897Scopus ID: 2-s2.0-85053106796OAI: oai:DiVA.org:kth-236897DiVA, id: diva2:1270122
Conference
20th International Conference on Composite Materials, ICCM 2015, 19 July 2015 through 24 July 2015
Funder
EU, FP7, Seventh Framework Programme
Note

QC 20181212

Available from: 2018-12-12 Created: 2018-12-12 Last updated: 2018-12-12Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Language
  • de-DE
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Output format
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  • asciidoc
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