A generalized technique for the inverse simulation of aircraft motion along predetermined trajectories (original) (raw)

1994

Abstract

A general formulation of the inverse problem of aircraft control is presented. The trajectory of the prescribed maneuver is modeled as a set of dynamic constrahts on the general non linear equations of motion. The equations are directly integrated to obtain the control vector necessary to realize the prescribed maneuver. The problem is also considered for the case of a trajectory described by a succession of defined points. A smoothing interpolation technique is used to approximate the trajectory in order to insure the continuity of all path derivatives. These continuous path derivatives, with respect to the path arc length parameter, are obtained .numerically and substituted in the analytic expressions of the generalized velocities and accelerations. The method is applied to some interesting plane as well as spatial flight maneuvers.

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