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Effects of damping on the control dynamics of the space shuttle based on tethered systemsThe analysis of the effects of damping on the control dynamics of the space shuttle based on tethered systems suggest that a relatively simple point mass model can provide useful information concering librational dynamics during development and retrieval of the tethered satellites. The results show that a nonlinear tension control strategy in conjunction with a suitable choice of gains and realistic damping can lead to stable retrieval maneuver with amplitudes in pitch and roll limited to acceptable values. Longitudinal and lateral vibrations of the tether are strongly coupled and can lead to the slackening of the tether. Tether vibrations can be controlled quite effectively by speeding up the retrieval at smaller tether length and/or using thruster.
Document ID
19860018184
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Modi, V. J.
(British Columbia Univ. Vancouver British Columbia, Canada)
Date Acquired
August 12, 2013
Publication Date
June 1, 1986
Publication Information
Publication: NASA, Washington Applications of Tethers in Space: Workshop Proceedings, Vol. 2
Subject Category
Space Transportation
Accession Number
86N27656
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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