Four experimental demonstrations of active vibration control for flexible structuresLaboratory experiments designed to test prototype active-vibration-control systems under development for future flexible space structures are described, summarizing previously reported results. The control-synthesis technique employed for all four experiments was the maximum-entropy optimal-projection (MEOP) method (Bernstein and Hyland, 1988). Consideration is given to: (1) a pendulum experiment on large-amplitude LF dynamics; (2) a plate experiment on broadband vibration suppression in a two-dimensional structure; (3) a multiple-hexagon experiment combining the factors studied in (1) and (2) to simulate the complexity of a large space structure; and (4) the NASA Marshall ACES experiment on a lightweight deployable 45-foot beam. Extensive diagrams, drawings, graphs, and photographs are included. The results are shown to validate the MEOP design approach, demonstrating that good performance is achievable using relatively simple low-order decentralized controllers.
Document ID
19900060687
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Phillips, Doug (Harris Corp. Melbourne, FL, United States)
Collins, Emmanuel G., Jr. (Harris Corp. Government Aerospace Systems Div., Melbourne, FL, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Structural Mechanics
Report/Patent Number
AIAA PAPER 90-3496
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference