Topology Optimization for Acoustic Structures Without Floating Components
Topology Optimization for Acoustic Structures Without Floating Components
复制标题
无浮动组件的声学结构拓扑优化
DOI：
10.1115/imece2022-94365
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Yamada Takayuki
中科院分区：
文献类型：
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作者：
Noguchi Yuki;Ohta Yusei;Matsushima Kei;Yamada Takayuki
针对无支承浮体结构的声学结构设计问题，提出了一种基于水平集的拓扑优化方法。该方法包括建立探测漂浮结构物的人工物理模型和消除漂浮构筑物的目标函数。作为一个设计问题，我们选择了声学隐身，并建立了几何约束下的拓扑优化问题。我们应用了一种优化算法，包括对声学系统的有限元分析和人工物理场。文中给出了几个数值算例，验证了该方法的有效性和适用性，并说明了如何利用该方法设计无浮动构件的隐身结构。
We propose a level-set method for topology optimization to design acoustic structures without unsupported floating structures. The proposed method involves developing an artificial physical model for detecting floating structures and an objective function for eliminating them. As a design problem, we chose acoustic cloaking and formulated a topology optimization problem under geometric constraints. We applied an optimization algorithm that includes finite element analysis for the acoustic system and an artificial physical field. We provide several numerical examples demonstrating the validity and applicability of the proposed method, and we show how it can be used to design a cloaking structure without any floating components.