Active Damping of a Cantilever Beam System

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Report Number: WL-TR-91-3078 Volume I, p. CAC-1 thru CAC-10
Author(s): Vu, H. V., Husher, S. E., Zimmerman, D. E.
Corporate Author(s): California State University, Long Beach
Laboratory: Wright Laboratory
Date of Publication: 1991-08
Pages: 10
Contract: Laboratory Research - No Contract
DoD Project: 2401
DoD Task: 240104
Identifier: This paper is part of a conference proceedings. See ADA241311

Abstract:
The control-structure interaction of a flexible structure, namely a cantilever beam, and a reaction mass actuator (RMA) is investigated. Mathematical model, in the form of differential equations and transfer functions, is obtained. The study is broken into two steps: (1) open loop and (2) closed loop. Within the open loop part, the RMA is broken into two sub-steps: (a) dead RMA and (b) passive RMA. In the closed loop part, negative feedback of the beam tip velocity is used for active RMA. Transient responses and root loci are given.

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