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Erschienen in: Acta Mechanica Sinica 5/2019

11.07.2019 | Research Paper

Design method for an acoustic cloak in flows by topology optimization

verfasst von: Zhengyu Ma, Oksana Stalnov, Xun Huang

Erschienen in: Acta Mechanica Sinica | Ausgabe 5/2019

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Abstract

In this paper, a design method for an acoustic cloak in the presence of background mean flows is proposed by using topology optimization, which enables the associated fabrication of the cloaking design. The density-based topology optimization method is used to allocate the designated materials, thus providing the structure of the cloak. The optimization problem is efficiently solved with the gradient-based globally convergent method of moving asymptotes, which utilizes the derivative information from the finite element simulation studies of the linearized acoustic potential equation. This paper introduces the whole design method first then numerically demonstrates the corresponding performance, which shall constitute the main contribution of the present work.

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Metadaten
Titel
Design method for an acoustic cloak in flows by topology optimization
verfasst von
Zhengyu Ma
Oksana Stalnov
Xun Huang
Publikationsdatum
11.07.2019
Verlag
The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences
Erschienen in
Acta Mechanica Sinica / Ausgabe 5/2019
Print ISSN: 0567-7718
Elektronische ISSN: 1614-3116
DOI
https://doi.org/10.1007/s10409-019-00887-6

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