PSO-Based Approach for Buckling Analysis of Shell Structures with Geometric Imperfections

Lisheng Luo, Wenyuan He and Xiaofeng Zhang

Mathematical Problems in Engineering, 2019, vol. 2019, 1-8

Abstract:

The buckling loads of shell structures are sensitive to initial geometric imperfections. Conventional methods used to model geometric imperfections cannot determine the accuracy of buckling loads with high computational efficiency. A new computational approach based on particle swarm optimization (PSO) is proposed to obtain the lower bound of the buckling load of shell structures with geometric imperfections. The proposed approach assumes a nodal geometric position using uncertain parameters. The buckling loads of the shell structures are then optimized using the PSO-based approach. Both academic and practical numerical examples have been thoroughly investigated. Thus, the applicability and accuracy of the proposed method is critically validated.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:4073919

DOI: 10.1155/2019/4073919

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