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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Calibration uncertainty estimation of a strain-gage external balance

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Author(s):
Reis, M. L. C. C. [1] ; Castro, R. M. [2] ; Mello, O. A. F. [3]
Total Authors: 3
Affiliation:
[1] Inst Aeronaut & Espaco, Sao Jose Dos Campos - Brazil
[2] Inst Estudos Avancados, Sao Jose Dos Campos - Brazil
[3] EMBRAER, Sao Jose Dos Campos - Brazil
Total Affiliations: 3
Document type: Review article
Source: MEASUREMENT; v. 46, n. 1, p. 24-33, JAN 2013.
Web of Science Citations: 5
Abstract

Aerodynamic balances are employed in wind tunnels to estimate the forces and moments acting on the model under test. This paper proposes a method for the evaluation of uncertainty in the calibration of an external multi-component aerodynamic balance. In order to obtain a numerical relationship between aerodynamic loads and the balance sensor responses, a calibration is performed prior to the tests by applying known weights to the balance. A multivariate polynomial fitting using the least squares method is used to interpolate the calibration data points. The uncertainties of both the applied loads and the readings of the sensors are considered in the regression. The data reduction includes the estimation of the calibration coefficients, the fitted values of the aerodynamic load components and their corresponding uncertainties, as well as the goodness of fit. (C) 2012 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 00/13769-0 - Development of technology for two- and three- dimensional aerodynamic trials for high performance aircraft project
Grantee:Olympio Achilles de Faria Mello
Support Opportunities: Research Grants - Research Partnership for Technological Innovation - PITE
FAPESP's process: 02/01933-6 - A method for estimation of the calibration uncertainty of external six-component wind tunnel balance.
Grantee:MARIA LUÍSA COLLUCCI DA COSTA REIS
Support Opportunities: Research Grants - Meeting - Abroad
FAPESP's process: 06/02628-3 - Measurement uncertainty contribution to the calibration curve feitting of an aerodynamic external balance using mlp artificial neural network.
Grantee:MARIA LUÍSA COLLUCCI DA COSTA REIS
Support Opportunities: Research Grants - Meeting - Brazil