APPLICATION OF IDENTIFICATION OF FUZZY MODEL IN STRUCTURAL MECHANICS

In the conventional analysis of structural mechanics, the structural behaviour are determined in mathematical functions and based on idealized assumptions. But structural members do not behaviour as the description of the mathematical functions if the system is too complicated. Consequently, we don't have an appropriate methodology and an convenient algorithm to utilize. If we identify the structural system with a fuzzy model, , where is the fuzzy relation, the procedure of the system identification will be simplified and the model can be quickly constructed 110 matter the style of nonlinear form and the orders. In this paper, four composition operators (α, β, φ and t) will be used to derive fuzzy relations from given data and then applied to two interesting problems of structural mechanics for illustrating the reliability ty and efficiency of the theory of fuzzy model.