Optimization of the design parameters of pressurized compound cylinders for equivalent stress and total cost

Authors : Mevlüt Aydın, Abdullah Çakan, Mevlüt Türköz

Pages : 1150-1163

Doi:10.5505/pajes.2025.88107

View : 81 | Download : 139

Publication Date : 2025-12-15

Article Type : Research Paper

Abstract :The optimal design of compound cylinders is crucial due to their high-pressure load-bearing requirements and significant manufacturing costs. This study focuses on optimizing the design parameters of compound cylinders to achieve minimal equivalent stress and production costs. To this end, a weighted multi-objective Grey Wolf Optimization (GWO) algorithm was employed. Furthermore, the influence of design parameters on shrinkage pressure and the equivalent stresses of the inner and outer cylinders was analyzed using detailed statistical methods. As a result of the multi-objective optimization, two reference designs were considered for comparison: one prioritizing minimum stress and the other minimizing manufacturing cost. Both the design parameter levels and weight ratios were systematically optimized. Using the optimal weight ratios and the GWO method, the maximum equivalent stress in the inner cylinder increased by 20%, while the total cost was reduced by a factor of 2.75. Consequently, a design with sufficient structural reliability was achieved, significantly lowering the manufacturing costs of compound cylinders.
Keywords : Bileşik Silindir, Tasarım Parametreleri, Bozkurt Algoritması, Çok Amaçlı Optimizasyon, Toplam Maliyet

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