Flutter Optimized Design for a Aircraft Horizontal Tail Base on Optimus Software

Abstract:

Based on the similarity theory, the horizontal tail scale model is designed and manufactured. Subsonic doublet lattice method is used to calculate unsteady aerodynamics, V-g method is used to solve the flutter determinant. Optimus software is used to optimize the thickness of the skin. The constraint condition is the frequency, MAC value and flexibility, and the objective function is flutter dynamic pressure. Flutter velocity of horizontal tail model optimized decreased 6%,and flutter frequency increased greatly. Horizontal tail scale model was test in wind tunnel. The finite element calculate results was very close with wind tunnel results, which verify the correctness of the finite element model and optimization models.

• Periodical: Applied Mechanics and Materials (Volume 684)
• Pages: 58-63
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.684.58
• Online since: October 2014
• Authors: Da Qian Zhang*, Xiao Dong Tan, Zi Lei Zhang, Xin Ping Fu
• Keywords: Flutter, Horizontal Tail, Optimized Design, Optimus, Scale Model

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