Reliability analysis of scarifying tooth for trailed scarifier

Abstract

In this paper are estimated the reliability indicators of scarifying tooth for trailed scarifier. Taking into account the constructive and technological factors, as well as the duration of exploitation, the determined values of Anderson-Darling statistics indicates that the Weibull distribution permits to model with maximum accuracy the lifetime of such attachment. The location parameter is estimated using the correlation coefficient method and minimum lifetimes are determined experimentally. Analyzing the obtained parameters, it can be shown that it can be used the normal distribution for reliability estimation. In this respects, it was applied the point and confidence interval estimation of the average and standard deviation lifetime of scarifying teeth of trailed scarifier.