Computer analysis and rapid assessment of data obtained by measuring residual stresses after vibration-hardening of samples

Abstract

Subject of research: is the use of computer analysis in measuring residual stresses. The purpose of the study is to create a program for evaluating and clustering numerical data obtained during the measurement of residual stresses. Object of research: is a computer model of experimental data processing. This model uses a modified order of approximation of data received from sensors. Main results of research: a program of computer analysis and rapid evaluation of numerical data has been developed. With the help of a software product, in the R programming language, calculated and experimental data are processed automatically. In the structure of the mathematical model for calculating residual stresses, a principle of a different order of approximation is introduced, which approximates not the result of multi-stage calculations, but the data obtained from sensors. This solution makes it possible to reduce the error of calculations and increase the adequacy of the model as a whole, and the developed program makes it possible to quickly evaluate the measurement results.