Abstract:

Nonlinear stability of the motion of aircraft is an important part of nonlinear flight dynamics and bifurcation analysis is one of the important contents of the stability analysis of motion of nonlinear dynamic systems. By using the simplifying technique for dimension reduction of center manifold and bifurcation analysis, this paper gives a comparatively fast and effective method for stability study and it also deals with the analysis of bifurcation and stability of inertia cross coupling in aircraft rolling motion. The method presented by the paper not only is of simplicity and feasibility, but also decreases considerably the amount of computation, and the results of computation are satisfactory.

Key words: aircraft, stability, bifurcation, cross coupling