RANDOM PROCESS THEORY AND POSSIBILITIES OF ITS APPLICATION IN EVALUATION OF WEAR TEST

摘要

MATHEMATICA 5.0, a software product of Wolfram Research, was used for random numbers generation. The program enables generating sets of random numbers of various statistical properties. Random distribution was used for our application. The statisticaldynamics methods were applied to the set of random numbers. Low-permeable numeric filter was applied. After filtration, the statistical analysis results showed that the power spectrum is relatively low. This was confirmed also by the Fisher test. Therewere 19 important frequencies in total, ranging from 0.5 Hz to 4.5 Hz. Frequency of 0.5 Hz was statistically most significant. These evaluated and defined functions with their frequency spectrums can be used for design modification of tools and machineryas input parameters for rationalizing and optimizing methods. Moreover, they can be used as load input data in adhesive wear testing within tribological experiments.