MANIPULATION OF UNCERTAINTIES IN THE DETERMINATION OF OPTIMAL MACHINING CONDITIONS UNDER MULTIPLE CRITERIA

In any real-world manufacturing situation, the problem of determining the optimum machining conditions involves not only empirical data but also imprecise information. Uncertain factors may need to be considere d in the computational optimization process due to fuzziness present i n the empirical equations and experimental data used. To manipulate th e uncertainties in the optimization process, a fuzzy model is introduc ed and investigated The fuzzy model quantifies the degree of certainty (or uncertainty) in the range 0 to 1. A numerical example is consider ed to illustrate the computational approach. The overall impact of the uncertain factors on the optimization process is assessed by comparin g the present numerical results with those given by the traditional ap proach.