Bicriteria optimization of sandwich cylindrical panels aided by expert system

The aim of this paper is to present the results of bicriteria. optimization of the sandwich, thin-walled, cylindrical panels under combined loads, The objective functions are weight and flexibility. The design variables are the thicknesses of the layers, The set of constraints includes the stability condition, stress conditions, the importance of theoretical models, and finally, technological and constructional requirements. The optimization problem was solved with the help of the Pareto concept of optimality and by means of a computer program, which includes elements of the expert system, Results of numerical calculations are presented in the form of tables and diagrams.