Non-linear stability analysis of aircraft at high angles of attack

N Sri Namachchivaya, S. T. Ariaratnam

Research output: Contribution to journalArticle

Abstract

The stability of an aircraft at high angles of attack is considered. Explicit results for the bifurcating paths and their stability are obtained for values of the system parameter in the neighbourhood of its critical value. It is shown that both Hopf as well as degenerate Hopf bifurcation could take place depending on the type of bifurcation parameter chosen. However, in the degenerate case there will be two periodic bifurcating paths with two different frequencies, which are either both stable or both unstable. For supersonic double-wedge air foil, the bifurcating path is numerically evaluated in the case of degenerate Hopf bifurcation.

Original languageEnglish (US)
Pages (from-to)217-228
Number of pages12
JournalInternational Journal of Non-Linear Mechanics
Volume21
Issue number3
DOIs
StatePublished - Jan 1 1986

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Hopf bifurcation
Nonlinear Stability
Angle of attack
Nonlinear Analysis
Aircraft
Stability Analysis
Attack
Angle
Hopf Bifurcation
Path
Metal foil
Wedge
Critical value
Bifurcation
Air
Unstable

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

Cite this

Non-linear stability analysis of aircraft at high angles of attack. / Namachchivaya, N Sri; Ariaratnam, S. T.

In: International Journal of Non-Linear Mechanics, Vol. 21, No. 3, 01.01.1986, p. 217-228.

Research output: Contribution to journalArticle

Namachchivaya, N Sri ; Ariaratnam, S. T. / Non-linear stability analysis of aircraft at high angles of attack. In: International Journal of Non-Linear Mechanics. 1986 ; Vol. 21, No. 3. pp. 217-228.
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