ANALYSIS OF UNSTEADY WIND TUNNEL FORCE DATA FROM A SUBMARINE MODEL AT INCIDENCE

Authors
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);Rowan Williams Davies and Irwin Inc, Guelph ONT (CAN)
Abstract
The report describes the dynamic analysis of the unsteady aerodynamic forces on the DREA Static Test Rig, 6 metre long submarine model tested at incidences from 0 to 30 degrees by the National Research Council of Canada in its 9m x 9m wind tunnel. In addition, the dynamical theory of the submarine's response to the force fluctuations is described. References for the complete description of the background theory on which the analysis is based are given. The theory is used to both extract the aerodynamic force spectra from the measurements and to predict the submarine model's response. By using the results, estimates of the fluctuating forces on the model can be made and the effect of adding stiffness or damping assessed. This is necessary both for efficient model support design and internal force balance design.
Report Number
DREA-CR-90-407 — Contractor Report
Date of publication
15 Mar 1990
Number of Pages
113
DSTKIM No
91-00473
CANDIS No
67692
Format(s):
Hardcopy;Originator's fiche received by DSIS

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