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Continuous and discrete describing function analysis of the LST systemA describing function of the control moment gyros (CMG) frictional nonlinearity is derived using the analytic torque equation. Computer simulation of the simplified Large Space Telescope (LST) system with the analytic torque expression is discussed along with the transfer functions of the sampled-data LST system, and the discrete describing function of the GMC frictionality.
Document ID
19740023794
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Kuo, B. C. (Systems Research Labs., Inc. Champaign, IL, United States)
Singh, G. (Systems Research Labs., Inc. Champaign, IL, United States)
Yackel, R. A. (Systems Research Labs., Inc. Champaign, IL, United States)
Date Acquired
September 3, 2013
Publication Date
November 1, 1973
Subject Category
Instrumentation And Photography
Report/Patent Number
NASA-CR-120321
Report Number: NASA-CR-120321
Accession Number
74N31907
Funding Number(s)
CONTRACT_GRANT: NAS8-29853
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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