Optimal Design of Single-Layered Reinforced Cylindrical Shells

This paper discusses the application of random search method for optimal design single-layered reinforced cylindrical shells operating in a neutral environment. When setting mathematical programming problem, minimum shell weight is considered as an objective function. The critical stresses are determined according to linear theory elastic region material. As constraints imposed on feasible region, strength, general buckling and partial accepted. aim this study efficiency various types reinforcements influence optimum-weight parameters axially-compressed one. A numerical experiment was carried out. Dependencies weight, wall thickness, reinforcement magnitude compressive load were investigated with different reinforcement. result performed, it found that increase magnitude, there tendency thickness shell, longitudinal stiffeners (stringers) slight decrease number ribs. In addition, should be noted case first special one turned out decisive choosing parameters.