Effect of Cubic Aeroelastic Nonlinearities on Flutter

被引：0
|
作者：
Berci, M. [1 ]
机构：
[1] Univ Leeds, Leeds LS2 9JT, W Yorkshire, England
来源：
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2016 (ICNAAM-2016) | 2017年 / 1863卷
关键词：
Analytical; LCOs; Nonlinear Aeroelasticity; Flutter Instability;
D O I：
10.1063/1.4992557
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The effect of cubic aero-structural nonlinearities on aeroelastic flutter instability is here investigated. Focusing on the unstable flutter mode, the exact amplitude and frequency of the arising limit cycle oscillations are determined analytically. Both harmonic balance and multiple scales methods are adopted and perfect agreement of the explicit results is demonstrated, for the case of small perturbations of the aircraft speed in the neighborhood of the flutter instability.
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页数：4
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