Active steering of an appendage on a spacecraft using piezoelectric actuators
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United States of America Patent
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-
Sep 17, 2002
Grant Date -
N/A
app pub date -
Oct 6, 2000
filing date -
Oct 6, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus and methods for pointing a non-deployable or deployable appendage disposed on a spacecraft. The appendage is secured to a backup structure comprising a plurality of beams. A plurality of control beams are secured to the backup structure. A plurality of deformation control elements, such as piezoelectric elements, for example, are secured to selected surfaces of the plurality of control beams. The deformation control elements are connected to a control source, such as a voltage control source, for example. Selected deformation control elements are activated to deform the associated control beams to point the deployable appendage in a desired direction.
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