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Topology optimization of free vibrating continuum structures based on the element free Galerkin method

机译:基于自由元Galerkin方法的自由振动连续体结构拓扑优化

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摘要

In this paper, the topology optimization design of the free vibrating continuum structures is formulated based on the element free Galerkin (EFG) method. Considering the relative density of nodes as design variable, and the maximization of the fundamental eigenvalue as an objective function, the mathematical formulation of the topology optimization model is developed using the solid isotropic microstructures with penalization (SIMP) interpolation scheme. The topology optimization problem is solved by the optimality criteria method. Finally, the feasibility and efficiency of the proposed method are illustrated with several 2D examples that are widely used in the topology optimization design.
机译:在本文中,基于无单元伽勒金(EFG)方法,提出了自由振动连续体结构的拓扑优化设计。将节点的相对密度作为设计变量,并将基本特征值的最大值作为目标函数,使用带有罚分的固体各向同性微结构(SIMP)插值方案开发了拓扑优化模型的数学公式。拓扑优化问题通过最优准则方法解决。最后,通过在拓扑优化设计中广泛使用的几个2D实例说明了该方法的可行性和效率。

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