Synthetic Design of High Aspect Ratio Folding Wings Based on Aeroelastic Analysis

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Abstract:

Finite element model of folding wings was designed in the light of structural scheme, and each part of the model used composites. Different aeroelastic analysis models were built from emission to cruise, and then the models were made the study focus on flutter analysis. The result showed the change relationship of the critical flutter speed of wings and flutter frequency with sweep angle in state of expansion process, and the change relationship of the critical flutter speed of wings and flutter frequency of folding wings with cruising altitude and cruise Mach number in state of cruise. The whole flight state was analyzed if the folding wings might flutter, and if it took place the structure optimization of wings was needed. Simulation results have a certain guiding significance for practical engineering application.

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409-412

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July 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Wilson, J. R. Aerospace America. pp.28-29. February (2004).

Google Scholar

[2] David Neal, Matthew Good, Christopher Johnson. Design and Wind-Tunnel Analysis of a Fully Adaptive Aircraft Configuration[C]. AIAA 2004-1727, (2004).

Google Scholar

[3] Basic ADAMS Full Simulation Training Guide [M]. 256-258.

Google Scholar

[4] MSC. Software. MSC. Patran user's manual[M]. Los Angeles: The Macneal-Schwendler Corporation, (2005).

Google Scholar

[5] Lv. P, Lv. SL, Yang. GJ, Zeng. QN, and Tong. XY, Structural Design and Finite Element Analysis of Unfolding Process for All Composite Folding Wing of UAV, Adv. Mater. Res. 163-167, 2328 (2011).

DOI: 10.4028/www.scientific.net/amr.163-167.2328

Google Scholar

[6] Deman Tang and Earl H. Dowell: Journal of Aircraft Vol. 45NO. 4 (2008), p.1136.

Google Scholar

[7] Lv. SL, Ping Liu, Yang. GJ, and Tong. XY, Improved Design and Dynamic Simulation of High Aspect Ratio Folding Wings, Applied Mechanics and Materials Vols. 249-250 (2013) pp.410-414.

DOI: 10.4028/www.scientific.net/amm.249-250.410

Google Scholar

[8] Xie. C, Yang.C. Geometric nonlinear aeroelastic problems of high aspect ratio aircraft, The national air elastic papers of academic exchange . 2004, 12(2):97-101.

Google Scholar