Vibroacoustic characterization of small woven fabrics

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2024-10-15 DOI:10.1016/j.apacoust.2024.110350

Weihan Shen , Zenong Cai , Radoslav Darula , Frieder Lucklum

引用次数: 0

Abstract

This study is aimed to analyze the vibroacoustic behaviour of woven fabrics utilized in small acoustic devices for ingress protection. We first concentrate on predicting and describing the vibration behaviour of the woven fabric structure through flip around, since lumped modelling comes first. A vibration experiment is also conducted to measure the motion of the woven fabric structure under external excitation to validate the modelling. The numerical model is then employed to simulate the vibroacoustic behaviour of the woven fabric via transmission loss calculation; the simulation is then compared with transmission loss measurement based on the four-microphone method. This research demonstrates that despite some limitations, both the numerical and lumped models show a good degree of accuracy in predicting the vibration of the woven structure; the numerical model also performs well in vibroacoustic modelling.

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小型编织物的振动声学特性分析

本研究旨在分析用于小型声学装置的编织物的振动声学特性。我们首先通过翻转来预测和描述编织物结构的振动行为，因为首先要进行的是块状建模。我们还进行了振动实验，测量编织结构在外部激励下的运动情况，以验证建模结果。然后，利用数值模型通过传输损耗计算来模拟编织物的振动声学行为，并将模拟结果与基于四麦克风方法的传输损耗测量结果进行比较。这项研究表明，尽管存在一些局限性，但数值模型和块状模型在预测编织结构的振动方面都表现出很高的准确性；数值模型在振动声学建模方面也表现出色。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.