Nonlinear Aerodynamic Reduced-Order Model for Limit-Cycle Oscillation and Flutter

被引：34
|
作者：
Zhang, Weiwei [1 ]
Kou, Jiaqing [1 ]
Wang, Ziyi [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Aeronaut, Natl Key Lab Aerodynam Design & Res, Xian 710072, Peoples R China
来源：
AIAA JOURNAL | 2016年 / 54卷 / 10期
基金：
中国国家自然科学基金;
关键词：
SERIES;
D O I：
10.2514/1.J054951
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A study proposes some improvements based on the recursive radial basis function (RRBF) network model, while permitting relatively accurate limit-cycle oscillation (LCO) predictions after structural parameters change. The new reduced-order model (ROM) is named the POD-RBF network. The constructed POD-RBFnetwork is applied to predict the unsteady aerodynamic forces of a NACA 64A010 airfoil. After coupling with the structural equations of motion, the LCO trends and bifurcation point under different structural parameters can be predicted within a fraction of the time.
引用
收藏
页码：3304 / 3312
页数：9
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