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Discrete Kalman filtering equations of second-order form for control-structure interaction simulations

Author
Park, K. C.
Published
JAN 1, 1991.
Physical Description
1 electronic document
Additional Creators
Alvin, K. F. and Belvin, W. Keith
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
A second-order form of discrete Kalman filtering equations is proposed as a candidate state estimator for efficient simulations of control-structure interactions in coupled physical coordinate configurations as opposed to decoupled modal coordinates. The resulting matrix equation of the present state estimator consists of the same symmetric, sparse N x N coupled matrices of the governing structural dynamics equations as opposed to unsymmetric 2N x 2N state space-based estimators. Thus, in addition to substantial computational efficiency improvement, the present estimator can be applied to control-structure design optimization for which the physical coordinates associated with the mass, damping and stiffness matrices of the structure are needed instead of modal coordinates.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19940007050.
Accession ID: 94N11522.
NASA-CR-193723.
AIAA PAPER 90-3387.
NAS 1.26:193723.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15663823