کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
797100 | 1466617 | 2012 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Center manifold reduction for the flutter of airfoils with gust loading
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Center manifold reduction for the flutter of airfoils with gust loading Center manifold reduction for the flutter of airfoils with gust loading](/preview/png/797100.png)
چکیده انگلیسی
An analysis of the classic binary airfoil system perturbed by a vertical gust is presented in this paper. To simplify the derivation, the gust disturbance is replaced with white noise, and a quasi-steady aerodynamic force is used to model the aerodynamic loading. Random bifurcation in this dynamical system is studied using the ideas of center-manifold reduction, normal form and the polar coordinates transformation. Then, an explicit presentation for the stationary probability density function is found as an approximate analytical solution to the related Fokker–Planck equation. From the results, we conclude that the P-bifurcation point will not produce qualitative changes, while the D-bifurcation point will disappear under a vertical gust.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Fluids and Structures - Volume 30, April 2012, Pages 133–140
Journal: Journal of Fluids and Structures - Volume 30, April 2012, Pages 133–140
نویسندگان
Yong Huang, Dongliang Hu, Xianbin Liu,