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Employment of CB models for non-linear dynamic analysisThe non-linear dynamic analysis of large structures is always very time, effort and CPU consuming. Whenever possible the reduction of the size of the mathematical model involved is of main importance to speed up the computational procedures. Such reduction can be performed for the part of the structure which perform linearly. Most of the time, the classical Guyan reduction process is used. For non-linear dynamic process where the non-linearity is present at interfaces between different structures, Craig-Bampton models can provide a very rich information, and allow easy selection of the relevant modes with respect to the phenomenon driving the non-linearity. The paper presents the employment of Craig-Bampton models combined with Newmark direct integration for solving non-linear friction problems appearing at the interface between the Hubble Space Telescope and its solar arrays during in-orbit maneuvers. Theory, implementation in the FEM code ASKA, and practical results are shown.
Document ID
19940004698
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Klein, M. R. M.
(European Space Agency. European Space Research and Technology Center ESTEC, Noordwijk, Netherlands)
Deloo, P.
(European Space Agency. European Space Research and Technology Center ESTEC, Noordwijk, Netherlands)
Fournier-Sicre, A.
(IKO Software Service G.m.b.H. Stuttgart, Germany)
Date Acquired
August 16, 2013
Publication Date
January 1, 1990
Publication Information
Publication: NASA. Langley Research Center, The Third Air Force(NASA Symposium on Recent Advances in Multidisciplinary Analysis and Optimization
Subject Category
Structural Mechanics
Accession Number
94N71453
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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