Topology optimization of a plate coupled with acoustic cavity
Topology optimization of a plate coupled with acoustic cavity
复制标题
DOI：
10.1117/12.776435
复制
发表时间：
2008-03
期刊：
影响因子：
--
通讯作者：
W. Akl;A. Elsabbagh;K. Al-Mitani;A. Baz
中科院分区：
文献类型：
--
作者：
W. Akl;A. Elsabbagh;K. Al-Mitani;A. Baz
Optimization of the topology of a plate coupled with an acoustic cavity is presented in an attempt to minimize the fluid-structure interactions at different structural frequencies. A mathematical model is developed to simulate such fluid-structure interactions based on the theory of finite elements. The model is integrated with a topology optimization approach which utilizes the Moving Asymptotes Method. The obtained results demonstrate the effectiveness of the proposed approach in simultaneously attenuating the structural vibration and the sound pressure inside the acoustic domain at several structural frequencies by proper redistribution of the plate material. The presented topology optimization approach can be an invaluable tool in the design of a wide variety of critical structures which must operate quietly when subjected to fluid loading.
