SERVO-ELASTIC OSCILLATIONS: CONTROL OF TRANSIENT DYNAMIC MOTION OF A PLATE.

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

Research output: Contribution to journalConference article

Abstract

A singular-solution approach is used to derive n discrete coupled ordinary differential equations governing the transient dynamic response of an initially stressed flat plate that is assumed to be a continuum model of a large space structure. Non-proportional damping is assumed. A reduced-order model of N ( less than equivalent to n) coupled ordinary differential equations is derived in terms of the amplitudes of pseudo-modes of the nominally undamped system. Optimal control is implemented using m ( less than equivalent to N) control-force actuators, in addition to a possible number p ( less than equivalent to m) passive viscous dampers. Algorithms for efficient solution of Riccati equations are implemented.

Original languageEnglish
Pages (from-to)139-147
Number of pages9
JournalAmerican Society of Mechanical Engineers, Aerospace Division (Publication) AD
StatePublished - 1984

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