MATHEMATICAL ANALYSIS OF THE DEPENDENCE OF THE OPTIMIZATION PARAMETER ON THE FACTORS AFFECTING THE STRENGTH OF THE THREAD CONNECTION OF WORKWEAR PARTS

Abstract

In this article, a study is carried out based on mathematical methods of experiment planning. The seam seams of a shuttle stitch made on a JK-6588BD sewing machine were examined. Stitch samples were made on gabardine with 100% cotton fabric ref. 3232 with weights of 210 g / m2, 220 g / m2 and 230 g / m2 twill weave. The studied factors were the sewing frequency, linear density of sewing threads and seam width. The strength of the seam was chosen as an optimization criterion. When solving the problem, a mathematical model of the research object was used, i.e. an equation that connects the optimization parameter with factors. The significance of the coefficients was checked using the Student's t-test. It was found that for the accepted level of significance and the corresponding
number of degrees of freedom, the mathematical model is considered adequate.