Abstract

Thin-walled sandwich structures have become extremely useful because of their high strength-to-mass and stiffness-to-mass ratios. The results of the bicriteria optimization of thin-walled sandwich cylindrical panels under combined loads are presented in this article. Panel mass and panel deformability are two objective functions, where panel deformability is defined with the help of bending rigidity. A set of constraints includes stability and stress conditions, a constraint connected with the importance of applied theoretical models, and technological and constructional requirements. The optimization problem was solved using the Pareto concept of optimality and application of the OPTIKON computer program, which implements elements of an expert system. The OPTIKON program was designed to solve multicriteria optimization problems for non-linear engineering models with discrete and continuous sets of design variables. The results of numerical calculations are presented as tables and diagrams.

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