Calculation of parameters of longitudinal movement of the plane at the big corners of attack with definition of parameters of stability short-period Movements

Аuthors

Zakharov M. A., Leonov V. A.

Abstract

For preparation of the decision on the computer, on the basis of the standard model of longitudinal movement of the maneuverable plane, the system of the nonlinear differential equations of 6-th order is deduced, in view of non-stationary making aerodynamic factors and with inclusion of the relaxational equation of a fly-off flow. The decision in the program "MathCad" is received. Modes of flight (after switching-off of system of improvement of stability and controllabilities) are considered at various corners of installation of the stabilizer: (t) (in maneuver "Cobra Pugacheva") and (0) (at initial indignations for the analysis of stability of movement). The linearization is executed and the system of the equations in increments from basic movement is made. For a finding of criteria of stability assumptions are entered and the differential equations of 3-rd order are received. Expressions of aperiodic and oscillatory stability are determined.

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