Application of Statistical Energy Analysis (SEA) in Estimating Acoustic Response of Panels With Non-Uniform Mass Distribution

IF 0.8 4区 工程技术 Q4 ACOUSTICS International Journal of Acoustics and Vibration Pub Date : 2021-03-30 DOI:10.20855/IJAV.2020.25.11736
K. Renji
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引用次数: 2

Abstract

Statistical Energy Analysis (SEA) is generally used in estimating the responses of structures to high frequency acoustic excitation. Though it has been successfully applied for panels having uniform mass, its usage is limited when the mass distribution is not uniform, as seen in equipment panels of a spacecraft. Results for such panels are seldom reported. In this work, an attempt is made to address this gap. A methodology to estimate the responses of such panels in SEA framework is presented and demonstrated for an equipment panel of a spacecraft, thus widening its application. This is accomplished through SEA along with the information on the standing waves generated due to the change in the structural properties. The acceleration responses of a typical equipment panel when subjected to a diffused acoustic field in a reverberation chamber are measured. The responses of the same panel are theoretically estimated using the methodology presented and a reasonably good prediction is seen.
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统计能量分析(SEA)在非均匀质量分布面板声学响应估计中的应用
统计能量分析(SEA)通常用于估计结构在高频声激励下的响应。虽然它已经成功地应用于具有均匀质量的面板,但在质量分布不均匀的情况下,如航天器的设备面板,它的使用受到限制。此类小组的结果很少被报道。在这项工作中,试图解决这一差距。以某航天器设备面板为例,提出并论证了在SEA框架下估算面板响应的方法,从而扩大了其应用范围。这是通过SEA以及由于结构特性变化而产生的驻波信息来完成的。测量了典型设备面板在混响室内受扩散声场作用时的加速度响应。使用所提出的方法对同一小组的反应进行了理论上的估计,并且可以看到一个相当好的预测。
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来源期刊
International Journal of Acoustics and Vibration
International Journal of Acoustics and Vibration ACOUSTICS-ENGINEERING, MECHANICAL
CiteScore
1.60
自引率
10.00%
发文量
0
审稿时长
12 months
期刊介绍: The International Journal of Acoustics and Vibration (IJAV) is the refereed open-access journal of the International Institute of Acoustics and Vibration (IIAV). The IIAV is a non-profit international scientific society founded in 1995. The primary objective of the Institute is to advance the science of acoustics and vibration by creating an international organization that is responsive to the needs of scientists and engineers concerned with acoustics and vibration problems all around the world. Manuscripts of articles, technical notes and letters-to-the-editor should be submitted to the Editor-in-Chief via the on-line submission system. Authors wishing to submit an article need to log in on the IJAV website first. Users logged into the website are able to submit new articles, track the status of their articles already submitted, upload revised articles, responses and/or rebuttals to reviewers, figures, biographies, photographs, copyright transfer agreements, and send comments to the editor. Each time the status of an article submitted changes, the author will also be notified automatically by email. IIAV members (in good standing for at least six months) can publish in IJAV free of charge and their papers will be displayed on-line immediately after they have been edited and laid-out. Non-IIAV members will be required to pay a mandatory Article Processing Charge (APC) of $200 USD if the manuscript is accepted for publication after review. The APC fee allows IIAV to make your research freely available to all readers using the Open Access model. In addition, Non-IIAV members who pay an extra voluntary publication fee (EVPF) of $500 USD will be granted expedited publication in the IJAV Journal and their papers can be displayed on the Internet after acceptance. If the $200 USD (APC) publication fee is not honored, papers will not be published. Authors who do not pay the voluntary fixed fee of $500 USD will have their papers published but there may be a considerable delay. The English text of the papers must be of high quality. If the text submitted is of low quality the manuscript will be more than likely rejected. For authors whose first language is not English, we recommend having their manuscripts reviewed and edited prior to submission by a native English speaker with scientific expertise. There are many commercial editing services which can provide this service at a cost to the authors.
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