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Proceedings Paper

Active vibration isolation on an experimental flexible structure
Author(s): John T. Spanos; Zahidul H. Rahman; Andreas H. von Flotow
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Paper Abstract

The paper describes experimental research in the area of active vibration isolation. The objective of the research is to quantitatively assess the performance gained by augmenting a passive isolator with an active stage. Vibration isolation experiments were carried out on a flexible structure utilizing a proof-mass shaker as the disturbance source and a newly developed active member as the isolator. Broad band force feedback control demonstrated more than 20 dB reduction in force transmissibility over passive isolation alone. The broad band controller was augmented with notch filters which resulted in reducing force transmissibility by 40 dB over the passive stage in select narrow bands.

Paper Details

Date Published: 8 September 1993
PDF: 7 pages
Proc. SPIE 1917, Smart Structures and Materials 1993: Smart Structures and Intelligent Systems, (8 September 1993); doi: 10.1117/12.152800
Show Author Affiliations
John T. Spanos, Jet Propulsion Lab. (United States)
Zahidul H. Rahman, Jet Propulsion Lab. (United States)
Andreas H. von Flotow, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 1917:
Smart Structures and Materials 1993: Smart Structures and Intelligent Systems
Nesbitt W. Hagood; Gareth J. Knowles, Editor(s)

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