Dynamic sound absorption characteristics of a series piezoelectric acoustic absorber regulated by voltage
文献类型：期刊论文
| 作者 | Xu, He1,2; Kong, Deyi1
|
| 刊名 | JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 151 |
| ISSN号 | 0001-4966 |
| DOI | 10.1121/10.0011639 |
| 通讯作者 | Kong, Deyi(kongdy@iim.ac.cn) |
| 英文摘要 | A piezoelectric acoustic absorber composed of double micro-perforated panels (MPPs) and their back cavity is studied in this paper. The outer layer of the MPP absorber is a common metal MPP, and the inner layer is a piezoelectric MPP made of polyvinylidene fluoride (PVDF) film. When an alternating voltage is applied to the polyvinylidene fluoride (PVDF)-micro-perforated panel (MPP), it can be excited to generate different structural vibration modes, which can bring an additional absorption peak to the absorption performance curve of the piezoelectric acoustic absorber. The numerical simulation and experimental results indicate that the frequency and sound absorption coefficient of the additional sound absorption peak are closely related to the voltage parameters. Especially when the frequency of the alternating voltage is close to the eigen-frequency of PVDF-MPP, the additional sound absorption peak is more significant. Therefore, the absorption coefficient of the piezoelectric acoustic absorber at the corresponding frequency can be effectively enhanced by appropriately adjusting the parameters of the excitation voltage. This method of selectively and specifically improving the sound absorption performance of the required frequency band is very effective in reducing the noise in the dynamic change. (C) 2022 Acoustical Society of America. |
| WOS关键词 | MICRO-PERFORATED PANEL ; MICROPERFORATED PANEL ; CAVITY ; MPP |
| 资助项目 | National Natural Science Foundation of China[11774355] |
| WOS研究方向 | Acoustics ; Audiology & Speech-Language Pathology |
| 语种 | 英语 |
| WOS记录号 | WOS:000807998700002 |
| 出版者 | ACOUSTICAL SOC AMER AMER INST PHYSICS |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/131301]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Kong, Deyi |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Transducer Technol, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, He,Kong, Deyi. Dynamic sound absorption characteristics of a series piezoelectric acoustic absorber regulated by voltage[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2022,151. |
| APA | Xu, He,&Kong, Deyi.(2022).Dynamic sound absorption characteristics of a series piezoelectric acoustic absorber regulated by voltage.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,151. |
| MLA | Xu, He,et al."Dynamic sound absorption characteristics of a series piezoelectric acoustic absorber regulated by voltage".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 151(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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