Borisov D.2024-07-162024-07-162024-07-162024-07-162023-01-011314-79781314-7471SCOPUS_ID:85164618082https://rlib.uctm.edu/handle/123456789/1437Regression mathematical models of the second full order were obtained for six quality indicators (objective parameters) for driving masses type “Fosuk”. The adequacy of the obtained regression equations for the quality indicators was approved. The optimal values of amount of clay substance Al2O3, %, and temperature of heat treatment, °C, were determined. The lines of constant values for each of the quality indicators in the range of variation in amount of clay substance Al2O3 and heat treatment temperature are presented. A multi-criteria optimization based on arithmetic mean, geometric mean and harmonic mean functions of usefulness was performed. An analysis of strategies for multi-criteria decision-making using a fractional-rational generalized function of usefulness is carried out.enArticle