NATURAL MODES AND REAL MODAL VARIABLES FOR FLEXIBLE SPACECRAFT

Authors
  1. Vigneron, F.R.
Corporate Authors
Communications Research Centre, Ottawa ONT (CAN)
Abstract
The report develops and illustrates a natural modal transformation theory which is applicable to flexible spacecraft with damping and gyroscopic forces. The theory is arranged into a form which is a generalization of the classical normal modes transformation theory. Modal differential equations are given in terms of real-valued scalars. Block diagrams in the time and Laplace transform domains demonstrate the feed-forward and second-order filter characteristics of the structure of the equations. Results for a single-axis flexible dynamics example are compared with earlier published results to show the correlation with the classical normal modes transformation theory.
Report Number
1348 —
Date of publication
15 Nov 1981
Number of Pages
22
DSTKIM No
82-02622
CANDIS No
37001
Format(s):
Hardcopy;Originator's fiche received by DSIS

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