Application of the Harrington function in substantiating the choice of the best equipment for plasma processing of materials

Abstract

The possibility of using the Harrington desirability function in choosing the most suitable equipment for plasma processing of materials is confirmed. The search for the optimal variant was carried out by calculating the maximum value of the generalized index of desirability. Four types of equipment for plasma cutting of metal are considered. A comparative analysis was carried out on the following indicators: the cost of equipment and technological cutting speeds for low carbon steel, stainless steel, and aluminum. An example of choosing the best equipment from an alternative series is considered. A system of four scales of partial evaluation indicators was used. Graphical and analytical evaluation methods are presented. The value of the generalized desirability index equal to 0.65 corresponds to the optimal variant of equipment for plasma cutting of metal.

Selecting the best planter option based on Harrington function

“…The value of the weighting coefficient ki, was taken depending on the importance of the particular estimated indicator ji (Table 2). The Harrington desirability function has long been widely used in various scientific fields [20][21][22]. In relation to the task set, it has been modernized in graphical form [23][24].…”