Discrete piezoelectric sensors and actuators for active control of two-dimensional spacecraft components

Janice I. Bayer; Vasundara V. Varadan; Vijay K. Varadan

doi:10.1117/12.46497

1 July 1991 Discrete piezoelectric sensors and actuators for active control of two-dimensional spacecraft components

Janice I. Bayer, Vasundara V. Varadan, Vijay K. Varadan

Proceedings Volume 1480, Sensors and Sensor Integration; (1991) https://doi.org/10.1117/12.46497
Event: Orlando '91, 1991, Orlando, FL, United States

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.

Citation Download Citation

Janice I. Bayer, Vasundara V. Varadan, and Vijay K. Varadan "Discrete piezoelectric sensors and actuators for active control of two-dimensional spacecraft components", Proc. SPIE 1480, Sensors and Sensor Integration, (1 July 1991); https://doi.org/10.1117/12.46497

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