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The effects of localized damping on structural responseThe effect of localized structural damping on the excitability of higher order normal modes of the large space telescope was investigated. A preprocessor computer program was developed to incorporate Voigt structural joint damping models in a NASTRAN finite-element dynamic model. A postprocessor computer program was developed to select critical modes for low-frequency attitude control problems and for higher frequency fine-stabilization problems. The mode selection is accomplished by ranking the flexible modes based on coefficients for rate gyro, position gyro, and optical sensors, and on image-plane motions due to sinusoidal or random power spectral density force and torque inputs.
Document ID
19750023429
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Merchant, D. H.
(Boeing Aerospace Co. Seattle, WA, United States)
Gates, R. M.
(Boeing Aerospace Co. Seattle, WA, United States)
Ice, M. W.
(Boeing Aerospace Co. Seattle, WA, United States)
Vanderlinden, J. W.
(Boeing Aerospace Co. Seattle, WA, United States)
Date Acquired
August 8, 2013
Publication Date
September 1, 1975
Publication Information
Publication: NASA. Langley Res. Center NASTRAN: Users' Experiences
Subject Category
Structural Mechanics
Accession Number
75N31502
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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