Objective Function Identification by Trial Production for Multiobjective Satisfactory Design

Abstract

To realize a multiobjective satisfactory design method for actual product designs, we investigated expression of objective functions, search method of solutions and identification of sensitivity coefficients. We introduce an identification method of technical but non-theoretical objective functions by trial productions and the regression analysis. The regression analysis of evaluated values of the products yields orthogonal polynomials of the functions. Studies on accuracy of the method in case of theoretical functions indicate the ratio of influential factors involved in the productions should be more than 50% and they also prove the number of products or levels and individual or combined productions are not important.