Optimization Analysis of Rib Placement in Stiffened Laminated Plates Based on the Meshless Method

DOI: https://doi.org/10.62517/jes.202602117

Author(s)

Dongyan Wei

Affiliation(s)

School of Green Building and Low-Carbon Technologies, Guangxi Technological College of Machinery and Electricity, Nanning, China

Abstract

To achieve the objective of maximizing the fundamental natural frequency of stiffened laminated plates under uniformly distributed loads, the optimization of rib placement in stiffened laminated plate structures is investigated by combining the Meshless method with the genetic algorithm. During the optimization process, the rib positions need to be continuously adjusted. Owing to the fact that the meshless method discretizes the structure using a set of nodes, there is no need to rearrange the nodes as the design variables change, which ensures computational accuracy while significantly improving efficiency. Finally, numerical examples are presented to optimize the rib placement in stiffened laminated plates so as to maximize the fundamental frequency. Comparisons with ABAQUS results demonstrate the effectiveness of the proposed approach.

Keywords

Stiffened Laminated Plates; Genetic Algorithm; First-Order Shear Deformation Theory; Moving Least Squares; Meshless Method

References

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