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Open AccessArticle

Computational Analysis of 3D Lattice Structures for Skin in Real-Scale Camber Morphing Aircraft

1
Department of Mechanical and Manufacturing Engineering, Tennessee State University, Nashville, TN 37209, USA
2
KBJ Innovation Co., Nashville, TN 37218, USA
*
Author to whom correspondence should be addressed.
Aerospace 2019, 6(7), 79; https://doi.org/10.3390/aerospace6070079
Received: 26 April 2019 / Revised: 3 June 2019 / Accepted: 15 June 2019 / Published: 7 July 2019
Conventional or fixed wings require a certain thickness of skin material selection that guarantees structurally reliable strength under expected aerodynamic loadings. However, skin structures of morphing wings need to be flexible as well as stiff enough to deal with multi-axial structural stresses from changed geometry and the coupled aerodynamic loadings. Many works in the design of skin structures for morphing wings take the approach either of only geometric compliance or a simplified model that does not fully represent 3D real-scale wing models. Thus, the main theme of this study is (1) to numerically identify the multi-axial stress, strain, and deformation of skin in a camber morphing wing aircraft under both structure and aerodynamic loadings, and then (2) to show the effectiveness of a direct approach that uses 3D lattice structures for skin. Various lattice structures and their direct 3D wing models have been numerically analyzed for advanced skin design. View Full-Text
Keywords: lattice; camber morphing; wing morphing; wing skin; computational analysis lattice; camber morphing; wing morphing; wing skin; computational analysis
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MDPI and ACS Style

Alsaidi, B.; Joe, W.Y.; Akbar, M. Computational Analysis of 3D Lattice Structures for Skin in Real-Scale Camber Morphing Aircraft. Aerospace 2019, 6, 79.

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