Т.G. Artushina

The article describes the analysis of stability of the solution of the multicriteria optimization multilevel model of the "Vessel" on the basis of the theory of fuzzy sets. For an estimation of adequacy of model the analysis of stability and sensitivity of the decision is made at change of parameters of the initial data. For research of stability of the decision research of influence of the speed which are an element of the technical project on designing, on components of a vector of optimized variables has been conducted. 4 new technical projects which all parameters, except speed, remained invariable have been created, optimized variables the vessel its subsystems also were invariable. For each variant of the technical project an optimum variant were compared to an optimum variant of the initial technical project. The result of comparison of the received variants concerning optimum length of a vessel and height of its boards de-pending on parameter speed in the technical project is resulted in Tab.1 and Tab.2. In a Fig.1 and Fig.2 are resulted schedules of mutual influence specified above parameters which allow to draw a conclusion on stability of the optimum decision concerning speed. The conclusion is drawn on sufficient adequacy of the presented multilevel model described by means of indistinct sets, as change of speed as one of characteristics of input parameters, doesn't lead to change of the optimum decision.