Accession Number : ADA191358
Title : Vibration Control of Large Structures.
Descriptive Note : Final technical rept. 1 Jan-31 Dec 86,
Corporate Author : VIRGINIA UNIV CHARLOTTESVILLE DEPT OF ELECTRICAL ENGINEERING
Personal Author(s) : Amos, Anthony K
PDF Url : ADA191358
Report Date : Sep 1987
Pagination or Media Count : 33
Abstract : This is a study of vibration control for large space structures. Advantage is taken of the limiting performance characteristics of dynamic systems. This approach permits large problems with constraints to be analyzed. A modal formulation for the limiting performance was developed in order to enhance the applicability of limiting performance to large structural systems. One effort to develop an optimal control system is based on the limiting performance approach in combination with classical/optimal control theory. A limiting-performance/minimum-time solution was formulated to achieve the goal of rapid suppression of disturbances. Classical/optimal control studies show that a position loop might be useful in taking care of constraint controllers, such as proof-mass dampers. Finally, to derive feedback control law based on the limiting performance characteristics, parameter identification technique has been under investigation.
Descriptors : *VIBRATION, *SPACE SYSTEMS, CONTROL, CONTROL SYSTEMS, CONTROL THEORY, DYNAMICS, FEEDBACK, FORMULATIONS, IDENTIFICATION, LIMITATIONS, LOOPS, OPTIMIZATION, POSITION(LOCATION), SPACECRAFT, STRUCTURES, DYNAMIC RESPONSE, DAMPING, SUPPRESSION, PERTURBATIONS
Subject Categories : Astronautics
Distribution Statement : APPROVED FOR PUBLIC RELEASE