Accession Number : AD0719743

Title :   A New Adaptive Control Technique,

Corporate Author : FRANK J SEILER RESEARCH LAB UNITED STATES AIR FORCE ACADEMY COLO

Personal Author(s) : Schaefer,John F.

Report Date : FEB 1971

Pagination or Media Count : 12

Abstract : An adaptive controller is synthesized in response to requirements exposed by a study of a low-order unstable mechanical system driven by a bang-bang actuator. The subject plant consists of a rigid rod pinned to a motor-driven cart; a mass mounted somewhere on the rod constitutes the unknown parameter in the system. The goal is to synthesize control logic which can cope with the unknown mass locations and stabilize the system from all potentially controllable initial conditions. The evolved adaptive technique differs from previously developed methods in that adaption takes place during chatter motion of the controller. These developments arose from study of a higher-order mechanical system whose equations of motion are similar to those describing the planar motion of an aerodynamically unstable missile. The technique appears to be applicable to missile control and generalizable to an even broader class of systems. (Author)

Descriptors :   (*ADAPTIVE CONTROL SYSTEMS, MATHEMATICAL MODELS), DIFFERENTIAL EQUATIONS, EQUATIONS OF MOTION, FEEDBACK, STABILITY, GUIDED MISSILES

Subject Categories : Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE