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Subsonic Dynamic Stability Tests of a Sample Return Entry VehicleAn investigation has been conducted in the NASA Langley 20-Foot Vertical Spin Tunnel (VST) to determine the subsonic dynamic stability characteristics of a proposed atmospheric entry vehicle for sample return missions. In particular, the effects of changes in aft-body geometry on stability were examined. Freeflying tests of a dynamically scaled model with various geometric features were conducted, including cases in which the model was perturbed to measure dynamic response. Both perturbed and non-perturbed runs were recorded as motion time histories using the VST optical data acquisition system and reduced for post-test analysis. In addition, preliminary results from a static force and moment test of a similar model in the Langley 12-Foot Low Speed Tunnel are presented. Results indicate that the configuration is dynamically stable for the baseline geometry, but exhibits degraded dynamic behavior for the geometry modifications tested.
Document ID
20060045567
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Fremaux, C. Michael
(NASA Langley Research Center Hampton, VA, United States)
Johnson, R. Keith
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 7, 2013
Publication Date
June 27, 2006
Subject Category
Spacecraft Design, Testing And Performance
Meeting Information
Meeting: 4th International Planetary Probe Workshop
Location: Pasadena, CA
Country: United States
Start Date: June 27, 2006
End Date: June 30, 2006
Funding Number(s)
WBS: WBS 033-02-07-10
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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