SINGULAR-SOLUTION APPROACH FOR CONTROLLING THE NONLINEAR RESPONSE OF A CONTINUUM MODEL OF A LARGE SPACE STRUCTURE.

P. E. O'Donoghue, S. N. Atluri

Research output: Contribution to journalConference articlepeer-review

Abstract

The topic of vibration control of large space structures which, in this instance are modeled by equivalent continua, is addressed here. A 'singular (or fundamental) solution' approach is utilized and the control algorithm is based on a fully coupled nodal system of equations which permits the effects of non-proportional damping to be monitored. Additionally, the structure will be allowed to undergo large deformations which will necessitate the implementation of a nonlinear control algorithm. In the scheme proposed here, the calculation of the feedback control forces will be based on the feedback gain matrix obtained from a solution of the linear optimal control problem. Examples will be presented to illustrate the controllability of the vibrations in both the linear and nonlinear cases.

Original languageEnglish
Pages (from-to)35-42
Number of pages8
JournalCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Issue numberpt 2
StatePublished - 1986

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