Trend in Automatic Flight Control Systems

Advances in Flight Control Systems

Flight Control Actuation Systems

Publication of this report does not constitute approval by NASA of the findings or conclusions contained herein. It is published for the exchange and stimulation of ideas.

Wing-In-Ground Effect Flight Control: New Role of Automatic Systems

A trouble-free flight at low altitude over the disturbed sea surface and also marine landing requires the application of the special methods and means of motion control which are capable to solve the corresponding specific problems. Methods of stability provision and solving some other problems of WIG flight by means of automatic control are analyzed. The requirements for motion control systems...

Adaptive Control of Decouplable Systems and Nonlinear Flight Control Systems

This paper treats the question of output trajectory tracking in nonlinear systems in the presence of uncertainty. It is assumed that the nominal system is decouplable using state variable feedback. An adaptive control law is derived such that in the closed-loop system, output vector asymptotically converges to the given reference trajectory. The controller includes a dynamic system in the feedb...

Gain Scheduled Automatic Flight Control Systems Design for a Light Commercial Helicopter Model

In this paper, nonlinear rigid body dynamics for rotorcraft mathematical model is studied. A linearization of helicopter flight dynamics is evaluated. Automatic Flight Control System (AFCS) with gain scheduled LQ optimal control is designed based on look-up tables. Stability analyses are performed and results are illustrated graphically for open and closed-loop systems. As seen from results, LQ...