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Proceedings Paper

Discrete piezoelectric sensors and actuators for active control of two-dimensional spacecraft components
Author(s): Janice I. Bayer; Vasundara V. Varadan; Vijay K. Varadan
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Paper Abstract

This paper describes research into the use of discrete piezoelectric sensors and actuators for active modal control of flexible two-dimensional structures such as might be used as components for spacecraft. A dynamic coupling term is defined between the sensor/actuator and the structure in terms of structural model shapes, location and piezoelectric behavior. The relative size of the coupling term determines sensor/actuator placement. Results are shown for a clamped square plate and for a large antenna. An experiment was performed on a thin foot-square plate clamped on all sides. Sizable vibration control was achieved for first, second/third (degenerate) and fourth modes.

Paper Details

Date Published: 1 July 1991
PDF: 13 pages
Proc. SPIE 1480, Sensors and Sensor Integration, (1 July 1991); doi: 10.1117/12.46497
Show Author Affiliations
Janice I. Bayer, Lockheed Engineering and Sciences Co. and NASA/Langley Research Ctr. (United States)
Vasundara V. Varadan, The Pennsylvania State Univ. (United States)
Vijay K. Varadan, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 1480:
Sensors and Sensor Integration
Peter D. Dean, Editor(s)

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