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  5. Estimation of measurements uncertainty during tests of friction shock absorber of freight carriages

Estimation of measurements uncertainty during tests of friction shock absorber of freight carriages

G.O. Cherepashchuk, O.P. Potilchak, Т.V. Bykova
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Determination methodology of average coefficient of relative friction of freight carriages is analysed in the article methodology of uncertainty calculation of this coefficient measurements is worked out. The analysis of methodology is made and the method of its simplification is offered. Uncertainty of measurements is calculated on the basis of experimental data and it is proved that they coincide with theoretical ones.
Keywords: mid-coefficient of relative friction, combined standard uncertainty, indirect measuring, curve of loading, carriage test