期刊
ENGINEERING OPTIMIZATION
卷 42, 期 10, 页码 887-905出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/03052150903477184
关键词
porous material; evolutionary optimization; acoustic devices
资金
- Fapesp (Fundacao de Amparo a pesquisa do Estado de Sao Paulo) [03/08469-6]
Topology optimization is frequently used to design structures and acoustic systems in a large range of engineering applications. In this work, a method is proposed for maximizing the absorbing performance of acoustic panels by using a coupled finite element model and evolutionary strategies. The goal is to find the best distribution of porous material for sound absorbing panels. The absorbing performance of the porous material samples in a Kundt tube is simulated using a coupled porous-acoustic finite element model. The equivalent fluid model is used to represent the foam material. The porous material model is coupled to a wave guide using a modal superposition technique. A sensitivity number indicating the optimum locations for porous material to be removed is derived and used in a numerical hard kill scheme. The sensitivity number is used to form an evolutionary porous material optimization algorithm which is verified through examples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据