The impact of remote manipulator structural dynamics on Shuttle on-orbit flight controlThe performance of the Space Shuttle on-orbit flight control system during payload operations with the remote manipulator system is described. The changing mass and inertia distribution associated with payload manipulation can have a significant effect on the control authority provided by the orbiter's reaction control jets. Commanded payload motion and jet firings can excite significant flexure in the orbiter/manipulator/payload structure. These effects combine to stress the control capabilities of the flight control system. Data from recent flight tests is presented to illustrate these effects.
Document ID
19840060688
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sargent, D. G. (Charles Stark Draper Laboratory, Inc. Cambridge, MA, United States)