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Dynamics of spacecraft control laboratory experiment (SCOLE) slew maneuversThis is the first of two reports on the dynamics and control of slewing maneuvers of the NASA Spacecraft Control Laboratory Experiment (SCOLE). In this report, the dynamics of slewing maneuvers of SCOLE are developed in terms of an arbitrary maneuver about any given axis. The set of dynamical equations incorporate rigid-body slew maneuver and three-dimensional vibrations of the complete assembly comprising the rigid shuttle, the flexible beam, and the reflector with an offset mass. The analysis also includes kinematic nonlinearities of the entire assembly during the maneuver and the dynamics of the interaction between the rigid shuttle and the flexible appendage. The final set of dynamical equations obtained for slewing maneuvers is highly nonlinear and coupled in terms of the flexible modes and the rigid-body modes. The equations are further simplified and evaluated numerically to include the first ten flexible modes and the SCOLE data to yield a model for designing control systems to perform slew maneuvers.
Document ID
19880000700
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Kakad, Y. P. (North Carolina Univ. Charlotte, NC, United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1987
Publication Information
Publisher: NASA
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
NAS 1.26:4098
NASA-CR-4098
Accession Number
88N10082
Funding Number(s)
CONTRACT_GRANT: NAG1-535
PROJECT: RTOP 506-46-11-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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