An Intelligent Optimization Design Method for Anti-buckling and Lightweight Thin-walled Stiffened Cylinder Structures
In this work,an intelligent optimization design method for thin-walled stiffened cylinder structures is proposed to automatically design lightweight thin-walled stiffened cylinder structures with anti-buckling performance requirements.Based on the geometric segmentation of cylindrical shell surface and the coupled finite elements of beams and shells,the automatic parametric simulation models of thin-walled stiffened cylinder structures are established for three typical types of stiffener layout:rectangular orthogonal,oblique orthogonal and equilateral triangle,and the high-efficiency and automatic simulation process of the linear buckling of the thin-walled stiffened cylinder is developed.Based on the optimization method of neural network surrogate model,the optimization of structural feature parameters of thin-walled stiffened cylinder is realized.The design case shows that the proposed method can effectively reduce the overall structural mass while ensuring the anti-buckling performance of the cylinder to meet the service requirements,and provide an efficient design method for the development of thin-walled cylinder structures.
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