Li Guo, Kaihua Yuan, Jinan Lv, Ziqiang Liu

DOI Number: N/A

Conference number: IFASD-2017-099

In this paper, CFD/CSD method was applied to achieve the deformation and loads of high aspect ratio elastic wing under aerodynamic loads. According to the results, topology optimization (TO) method was applied for the purpose of reducing the total weight of high aspect elastic wing. TO method involves iteratively reducing individual elemental density until the desired mass or volume constraint is met. Two different TO styles were approached: a global three-dimensional configuration and a traditional two-dimensional rib and spar optimization which is according to the baseline design. The configuration of TO was exported to FEM software and the von-mises stress, displacement, and buckling were compared to the baseline wing. The weight saving was verified to prove the effect of TO method. Different to traditional manufacturing, 3-D print was adopted to realize the complex structure manufacture of TO. The results show that a total wing mass reduction of 10 percent can be realized.

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In Categories: 1.Events, Computational Aeroelasticity, IFASD 2017
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