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Analysis and compensation of an aircraft simulator control loading system with compliant linkage

Author
Johnson, P. R.
Published
Dec 1, 1974.
Physical Description
1 electronic document
Additional Creators
Bardusch, R. E.
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
A hydraulic control loading system for aircraft simulation was analyzed to find the causes of undesirable low frequency oscillations and loading effects in the output. The hypothesis of mechanical compliance in the control linkage was substantiated by comparing the behavior of a mathematical model of the system with previously obtained experimental data. A compensation scheme based on the minimum integral of the squared difference between desired and actual output was shown to be effective in reducing the undesirable output effects. The structure of the proposed compensation was computed by use of a dynamic programing algorithm and a linear state space model of the fixed elements in the system.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19750003931.
Accession ID: 75N12003.
NASA-TN-D-7747.
L-9642.
Terms of Use and Reproduction
No Copyright.
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