Measurement of the direct damping derivative in roll of the two calibration missile models

Measurement of the direct damping derivative in roll in the T-38 wind tunnel is described in this paper. The T-38 wind tunnel data for the Basic Finner Model and Modified Basic Finner model are shown. The forced oscillation technique was used for these measurements. The roll apparatus for the stabil...

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Bibliographic Details
Published inFME transactions Vol. 41; no. 3; pp. 189 - 194
Main Authors Samardžić Marija, Isaković Jovan, Miloš Marko, Anastasijević Zoran, Nauparac Dragan B.
Format Journal Article
LanguageEnglish
Published University of Belgrade - Faculty of Mechanical Engineering, Belgrade 01.01.2013
Subjects
calibration model
cross-correlation technique
forced oscillation technique
stability derivative
strain gauge balance
wind tunnel
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Summary:Measurement of the direct damping derivative in roll in the T-38 wind tunnel is described in this paper. The T-38 wind tunnel data for the Basic Finner Model and Modified Basic Finner model are shown. The forced oscillation technique was used for these measurements. The roll apparatus for the stability derivatives measurement is a full-model forced oscillation apparatus with primary angular oscillation around a longitudinal axis of the model. The excitation moment in roll was measured with the five- component strain gauge balance. This balance was designed and built for the wind tunnel dynamic measurements. The amplitudes and phase shifts of the excitation moment were calculated in frequency domain by applying cross-correlation technique. The T-38 wind tunnel results are compared with published experimental results of the Arnold Engineering Development Center-von Karman 4ft wind tunnel.
ISSN:1451-2092
2406-128X