Dynamic Calibration of Force Balances for Impulse Hypersonic Facilities

Mee, D. J. (2003) Dynamic Calibration of Force Balances for Impulse Hypersonic Facilities. Shock Waves, 12 6: 443-455. doi:10.1007/s00193-003-0181-6

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Author Mee, D. J.
Title Dynamic Calibration of Force Balances for Impulse Hypersonic Facilities
Journal name Shock Waves   Check publisher's open access policy
ISSN 0938-1287
Publication date 2003-01-01
Sub-type Article (original research)
DOI 10.1007/s00193-003-0181-6
Open Access Status File (Author Post-print)
Volume 12
Issue 6
Start page 443
End page 455
Total pages 13
Place of publication Berlin / Heidelberg
Publisher Springer
Language eng
Subject 299904 Engineering/Technology Instrumentation
C1
290299 Aerospace Engineering not elsewhere classified
690302 Space transport
Abstract This paper analyzes different techniques for the calibration of force balances for use in short-duration impulse hypersonic facilities such as shock tunnels. The background to how deconvolution can be used to infer aerodynamic forces on models in impulse hypersonic wind tunnels is presented along with the theory behind the different calibration techniques. Four calibration techniques are applied to a single-component stress-wave force balance. Experiments in the T4 shock tunnel using the balance demonstrate the suitability of the different calibrations for force measurements in an impulse facility. Cross checks between the calibration techniques are used to check their ranges of validity. It is shown that the impulse response derived from tests in which the model and force balance are suspended from a fine wire and the wire cut agree well with impulse responses derived from calibrations made using an impact hammer. The suitability of the balance for measuring dynamic forces is demonstrated by showing that the drag force on a model follows the history of Pitot pressure in the test section in the tunnel shots.
Keyword force balance
shock tunnel
calibration
deconvolution
Q-Index Code C1
Additional Notes Originally published as D. J. Mee (2003) Dynamic calibration of force balances for impulse hypersonic facilities, Shock Waves 12 (6): 443-455. DOI: 10.1007/s00193-003-0181-6 Copyright 2003 Springer-Verlag. All rights reserved. The original publication is available at www.springerlink.com.

 
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Created: Mon, 09 Jan 2006, 10:00:00 EST by David J Mee on behalf of School of Engineering