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Verifcation of the method for assessing systematic errors of the balance calibration machine
https://doi.org/10.32446/0368-1025it.2022-2-44-50
Abstract
The systematic errors of the 6GS-40M calibration machine of the Central Aerohydrodynamic Institute are investigated. The machine is designed for calibration of external and internal six-component strain-gauge balances with a maximum normal force of 40 kN. Proceeding from requirements to the aerodynamic characteristic errors of aircraft models during their tests in wind tunnels, the requirements to the calibration errors of strain-gauge balances were obtained: the calibration error related to half of range of the calibration machine components must not exceed 0.05 %. A method is developed for experimental evaluation of systematic errors of calibration machine. Experimental studies were carried out with the help of the developed method to determine the systematic errors of the 6GS-40M calibration machine. Previously obtained analytical expressions for the systematic errors were verifi ed by the results of the experiment. We estimated the corrections to the loads set by the 6GS-40M calibration machine to external and internal six-component strain-gauge balances. The range of corrections was from 0.09 to 0.90 % for the diff erent components of the balances. The developed method of experimental determination of systematic errors may be used for other calibration machines.
About the Authors
V. S. Volobuev
Central Aerohydrodynamic Institute (TsAGI)
Russian Federation
Russian Federation
Valery S. Volobuev
Zhukovsky, Moscow region
A. R. Gorbushin
Central Aerohydrodynamic Institute (TsAGI);
Moscow Institute of Physics and Technology (MIPT)
Russian Federation
Russian Federation
Anton R. Gorbushin
Zhukovsky, Moscow region;
Dolgoprudny, Moscow region
V. A. Zavyalov
Central Aerohydrodynamic Institute (TsAGI)
Russian Federation
Russian Federation
Vladimir A. Zavyalov
Zhukovsky, Moscow region
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Review
For citations:
Volobuev V.S., Gorbushin A.R., Zavyalov V.A. Verifcation of the method for assessing systematic errors of the balance calibration machine. Izmeritel`naya Tekhnika. 2022;(2):44-50. (In Russ.) https://doi.org/10.32446/0368-1025it.2022-2-44-50
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