Studies on the Optimum Design Theories of a Rotary Shaft and the Expert CAD System (Part 4)

The Method of Preferential Optimum Evaluation and Building of the Expert CAD System

Abstract

In this paper, a method of decision making is reported in which a preferential optimum arrangement can be selected from the “data base of Pareto optimum arrangements” obtained by using the multi-stage decision method. At first, the method for preferential evaluation by a constellation graph is proposed, and the theoretical foundation of this method is discussed by formulating the value function of decision making. Then next, the technique is also investigated by which the weights of the performance factors can be quantified in dialog style.
Furthermore, according to the optimum design theoretics on rotary shaft and the method of building the expert CAD system established in this study, the outline of the expert CAD system for decision making in rotary shaft design is also reported.