Calibration uncertainty estimation of a strain-gage external balance

Autor(es)

Reis, M. L. C. C. ^[1] ; Castro, R. M. ^[2] ; Mello, O. A. F. ^[3]

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo de Revisão
• Fonte: MEASUREMENT; v. 46, n. 1, p. 24-33, JAN 2013.
• Citações Web of Science: 5

Resumo

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)

• Processo FAPESP: 00/13769-0 - Desenvolvimento de tecnologia de ensaios aerodinâmicos bi e tridimensionais para o projeto de aeronaves de alto desempenho
• Beneficiário: Olympio Achilles de Faria Mello
• Modalidade de apoio: Auxílio à Pesquisa - Parceria para Inovação Tecnológica - PITE
• Processo FAPESP: 02/01933-6 - A method for estimation of the calibration uncertainty of external six-component wind tunnel balance.
• Beneficiário: MARIA LUÍSA COLLUCCI DA COSTA REIS
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Exterior
• Processo FAPESP: 09/09370-0 - IMEKO XIX World Congress
• Beneficiário: MARIA LUÍSA COLLUCCI DA COSTA REIS
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Exterior
• Processo FAPESP: 06/02628-3 - Measurement uncertainty contribution to the calibration curve feitting of an aerodynamic external balance using mlp artificial neural network.
• Beneficiário: MARIA LUÍSA COLLUCCI DA COSTA REIS
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Brasil