Active damping with a reaction mass actuator

Details Active damping with a reaction mass actuator Active damping with a reaction mass actuator

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1696..182s&link_type=abstract

In: Controls for optical systems; Proceedings of the Meeting, Orlando, FL, Apr. 21, 22, 1992 (A93-34276 13-74), p. 182-192.

Mathematics

Logic

Active Control, Actuators, Feedback Control, Flexible Bodies, Structural Vibration, Vibration Damping, Degrees Of Freedom, Spaceborne Telescopes, Technological Forecasting, Trusses

Scientific paper

This paper presents analytical and experimental results in actively damping flexible structures with reaction mass actuators. A two degree of freedom spring-mass model of a flexible structure is analyzed and the key parameters of actuator mass participation and pole-zero separation are related to the maximum damping achievable from rate feedback control. The main conclusion of the paper is that the larger the pole-zero separation the larger the amount of damping that can be imparted to a structural mode. Laboratory experiments conducted on an 8-foot truss structure support the analytical predictions.

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