Application of the Mu-Omega Method in Aeroelastic Stability Analysis

Gu Yingsong;Yang Zhichun;Li Bin

Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (12) : 12-14.

PDF(1876 KB)
PDF(1876 KB)
Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (12) : 12-14.
论文

Application of the Mu-Omega Method in Aeroelastic Stability Analysis

  • Gu Yingsong;Yang Zhichun;Li Bin
Author information +
History +

Abstract

A recently proposed flutter prediction method called mu-omega method in frequency domain is generalized to the static divergence analysis. Numerical study is conducted using this method to analyze the stability boundary of complex aeroelastic system. First, the flutter characteristic of a high aspect ratio swept wing is calculated. The critical flutter speed and flutter frequency obtained by the mu-omega method have a relative error of 0.83% and 0.39% compared with those solved by the p-k method, respectively. After then, static divergence analysis is carried out for a delta wing model. The critical divergence speed is obtained by the mu-omega method with a relative error of 2.02% compared with that given by the p-k method. It is indicated that the mu-omega method has good numerical accuracy and is applicable in the stability analysis of complex aeroelastic systems.

Key words

mu-omega method / aeroelastic stability / flutter (Aerodynamics) / static divergence / structured singular value

Cite this article

Download Citations
Gu Yingsong;Yang Zhichun;Li Bin. Application of the Mu-Omega Method in Aeroelastic Stability Analysis[J]. Journal of Vibration and Shock, 2009, 28(12): 12-14
PDF(1876 KB)

Accesses

Citation

Detail

Sections
Recommended

/