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http://dx.doi.org/10.7234/kscm.2012.25.6.224

Optimal Design of the Composite Hat-shaped Stiffeners for Simplified Wing Box with Embedded Array Antenna  

Park, Sunghyun (충남대학교 항공우주공학과 대학원)
Kim, In-Gul (충남대학교 항공우주공학과)
Lee, Seokje (충남대학교 항공우주공학과 대학원)
Jun, Oo-Chul (국방과학연구소)
Publication Information
Composites Research / v.25, no.6, 2012 , pp. 224-229 More about this Journal
Abstract
The structural performance is degraded in case of embedding the array antenna for reconnaissance and surveillance into the wing skin structures. In this paper, the optimal design for the thickness of composite hat-shaped stiffener which is reinforced embedded array antenna on the simplified composite wing box was conducted. To select the basic shape of hat-shaped stiffener, structural analysis was carry out using the commercial finite element analysis program while changing the web slope and flange length of hat-shaped stiffener. The optimal thickness of the composite hat-shaped stiffeners was determined by using commercial optimization program such as VisualDOC and commercial FEA program with considering stresses and buckling constraints.
Keywords
array antenna; simplified composite wing box; optimal design; hat-shaped stiffener;
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