Active vibration isolation on an experimental flexible structure

John T. Spanos; Zahidul H. Rahman; Andreas H. von Flotow

doi:10.1117/12.152800

8 September 1993 Active vibration isolation on an experimental flexible structure

John T. Spanos, Zahidul H. Rahman, Andreas H. von Flotow

Proceedings Volume 1917, Smart Structures and Materials 1993: Smart Structures and Intelligent Systems; (1993) https://doi.org/10.1117/12.152800
Event: 1993 North American Conference on Smart Structures and Materials, 1993, Albuquerque, NM, United States

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.

Citation Download Citation

John T. Spanos, Zahidul H. Rahman, and Andreas H. von Flotow "Active vibration isolation on an experimental flexible structure", Proc. SPIE 1917, Smart Structures and Materials 1993: Smart Structures and Intelligent Systems, (8 September 1993); https://doi.org/10.1117/12.152800

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