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Application of physical parameter identification to finite-element models (1987)

Kuritz, Steven P. ; Lukich, Michael S. ; Bronowicki, Allen J.

In: CASI

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Publication Date: 2013-08-31

Description: The time domain parameter identification method described previously is applied to TRW's Large Space Structure Truss Experiment. Only control sensors and actuators are employed in the test procedure. The fit of the linear structural model to the test data is improved by more than an order of magnitude using a physically reasonable parameter set. The electro-magnetic control actuators are found to contribute significant damping due to a combination of eddy current and back electro-motive force (EMF) effects. Uncertainties in both estimated physical parameters and modal behavior variables are given.

Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE

Type: NASA-Langley Research Center NASA(DOD Control)Structures Interaction Technology, 1986; p 747-755

Format: application/pdf

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