Nonlinear dynamics of a vectored thrust aircraft

C.B Sørensen, Erik Mosekilde

Research output: Contribution to journalJournal articleResearchpeer-review


With realistic relations for the aerodynamic coefficients, numerical simulations are applied to study the longitudional dynamics of a thrust vectored aircraft. As function of the thrust magnitude and the thrust vectoring angle the equilibrium state exhibits two saddle-node bifurcations and three Hopf bifurcations. Even when the equilibrium state is stable, weakly damped oscillations occur with a period of 1 min. If, in an attempt to compensate for these oscillations, the thrust deflection is periodically adjusted, a complicated structure of overlapping torus, saddle-node and period-doubling bifurcations arises. This structure is investigated by combining brute force bifurcation diagrams with one- and two-dimensional continuation analyses.
Original languageEnglish
JournalPhysica Scripta. Topical Issues
Pages (from-to)176-183
Publication statusPublished - 1996

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