04.2 - Aerostructures Design, Structural Dynamics, Aeroelasticity
COMPUTATIONAL/EXPERIMENTAL AEROELASTIC STUDY FOR AN ALL-MOVABLE HORIZONTAL TAIL WITH TORSION FREE-PLAY
X.-Y. Ai, China; X.-Y. Chen, China; W.-J. Wang, China; J. Liu, China; X.-J. Ran, China; W. Qian, China
Segmented optimization describing function method is proposed to study the dynamic response induce by free-play. By the method, piecewise expressions for the time history and phase portrait of limit cycle are derived, and the high-order harmonic is predicted. A 3D all-movable horizontal tail with free-play was produced, and the effectiveness of the method was verified by wind tunnel test.