Reduced-order aerodynamic model and its application to a nonlinear aeroelastic system

被引：31
|
作者：
Tang, DM [1 ]
Conner, MD
Dowell, EH
机构：
[1] Duke Univ, Dept Mech Engn & Mat Sci, Durham, NC 27708 USA
[2] Duke Univ, Sch Engn, Durham, NC 27708 USA
来源：
JOURNAL OF AIRCRAFT | 1998年 / 35卷 / 02期
关键词：
D O I：
10.2514/2.2304
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Starting from a finite state model for a two-dimensional aerodynamic now over an airfoil, the eigenmodes of the aerodynamic now are determined. Using a small number of these aerodynamic eigenmodes, i.e., a reduced-order model, the aeroelastic model is formed by coupling them to a typical section structural model with a trailing-edge flap. A free-play nonlinearity is modeled. Results are shown from the finite state model, the reduced-order model, and previous theoretical and experimental work, All results are in good agreement.
引用
收藏
页码：332 / 338
页数：7
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