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Active member bridge feedback control for damping augmentationAn active damping augmentation approach using active members in a structural system is described. The problem of maximizing the vibration damping in a lightly damped structural system is considered using the analogy of impedance matching between the load and source impedances in an electrical network. The proposed active damping augmentation approach therefore consists of finding the desired active member impedances that maximize the vibration damping, and designing a feedback control in order to achieve desired active member impedances. This study uses a bridge feedback concept that feeds back a combination of signals from sensors of the axial force and relative velocity across the active member to realize the desired active member impedance. The proposed active damping augmentation approach and bridge feedback concept were demonstrated on a three-longeron softly suspended truss structure.
Document ID
19920067872
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chen, Gun-Shing
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lurie, Boris J.
(JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
October 1, 1992
Publication Information
Publication: Journal of Guidance, Control, and Dynamics
Volume: 15
Issue: 5, Se
ISSN: 0731-5090
Subject Category
Cybernetics
Accession Number
92A50496
Distribution Limits
Public
Copyright
Other

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