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Record Details

Record 38 of 8251
Studies Of Positive-Position-Feedback Control
Author and Affiliation:
Fanson, James L.(Caltech)
Caughey, Thomas K.(Caltech)
Abstract: Report discusses theoretical and experimental studies of positive-position-feedback control for suppressing vibrations in large flexible structures. Positive-position-feedback control involves placement of actuators and sensors on structure; control voltages applied to actuators in response to outputs of sensors processed via compensator algorithm. Experiments demonstrate feasibility of suppressing vibrations by positive position feedback, and spillover of vibrational energy into uncontrolled modes has stabilizing effect if control gain sufficiently small.
Publication Date: Aug 01, 1992
Document ID:
19920000477
(Acquired Nov 04, 1995)
Accession Number: 92B10477
Subject Category: MECHANICS
Report/Patent Number: NPO-18074
Document Type: NASA Tech Brief
Publication Information: NASA Tech Briefs (ISSN 0145-319X); 16; 8; P. 57
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: FEEDBACK CONTROL; POSITIVE FEEDBACK; VIBRATION DAMPING
Availability Source: National Technology Transfer Center (NTTC), Wheeling, WV
Availability Notes: Additional information available through: National Technology Transfer Center (NTTC), Wheeling, WV 26003, (Tel: 1-800-678-6882).
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