Modeling and prediction of material wear by unfixed abradant
DOI:
https://doi.org/10.15587/1729-4061.2013.18920Keywords:
diagnostics, abrasive wear, test pattern, wear model, model parametersAbstract
The generalized multifactor model of the interaction of friction surface with unfixed particles of abrasive, developed on the basis of similarity and dimension theory provides the determination of parameters of material wear. The use of the developed analytical dependences of determining the rate of linear wear of materials allowed significant reduction of the amount of basic experimental researches. The dimensionless multifactor criterion of similarity and the criterion equation allow estimating the influence of sliding distance, material hardness, sizes of particles of abrasive and abrasive pressure upon the sample on wear by unfixed abrasive. The correctness of the constructed model of abrasive wear in the unfixed abrasive was experimentally proved. The method of using the developed model for the prediction and evaluation of technical condition of operating supporting nodes of friction of cylindrical machine parts in the interesting point of time was justified.
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