Acoustic capsule: A structure that can carry different objects but obtain the same acoustic radiation force

IF 4.9 2区工程技术 Q1 ACOUSTICS Journal of Sound and Vibration Pub Date : 2025-01-20 Epub Date: 2024-09-02 DOI:10.1016/j.jsv.2024.118711

Menyang Gong , Yuanyuan Li , Yupei Qiao , Xin Xu , Zhonghan Fei , Shenlian Gao , Jiehui Liu , Aijun He , Xiaozhou Liu

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Abstract

An acoustic capsule is designed utilizing equivalent anisotropy of density and of sound speed. The designed capsule can carry any object with dimensions smaller than those of its inner cavity. The capsule achieves internal shielding of the sound field, thus ensuring that the capsule and its contents experience the same acoustic radiation force (ARF), regardless of any changes in the contents. An acoustic capsule design method is proposed and its feasibility is verified using a combination of theoretical analysis and finite element simulations. Additionally, optimization strategies to enhance the ARF and enable selection of appropriate material parameters are discussed, and these strategies pave the way toward practical applications of the ARF in life sciences and other fields.

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声囊：可承载不同物体但获得相同声辐射力的结构

利用密度和声速的等效各向异性设计了一个声囊。所设计的舱体可承载任何尺寸小于其内腔尺寸的物体。舱体实现了声场的内部屏蔽，从而确保舱体及其内装物无论发生何种变化，都能承受相同的声辐射力（ARF）。本文提出了一种声学胶囊设计方法，并通过理论分析和有限元模拟相结合的方法验证了该方法的可行性。此外，还讨论了增强 ARF 和选择适当材料参数的优化策略，这些策略为 ARF 在生命科学和其他领域的实际应用铺平了道路。

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来源期刊

Journal of Sound and Vibration 工程技术-工程：机械

CiteScore

9.10

自引率

10.60%

发文量

551

审稿时长

69 days

期刊介绍： The Journal of Sound and Vibration (JSV) is an independent journal devoted to the prompt publication of original papers, both theoretical and experimental, that provide new information on any aspect of sound or vibration. There is an emphasis on fundamental work that has potential for practical application. JSV was founded and operates on the premise that the subject of sound and vibration requires a journal that publishes papers of a high technical standard across the various subdisciplines, thus facilitating awareness of techniques and discoveries in one area that may be applicable in others.