{"title":"Sound Reduction Control in Acoustic Enclosure with Air Ventilation","authors":"Mengyi Liu, Xiaoming Zhou","doi":"10.1007/s10338-023-00423-x","DOIUrl":null,"url":null,"abstract":"<div><p>An acoustic enclosure system with both interior sound reduction and air ventilation is designed and demonstrated. The system consists of a rectangular enclosed space coupled with ventilated metamaterials and microperforated panels (MPPs). By modeling the ventilated metamaterial as an impedance boundary condition, an analytic model is developed to characterize the frequency response of interior acoustic fields and evaluate the sound reduction performance of MPP structures. Numerical simulations are conducted to validate the accuracy of the theoretical model. It is found that the resonance response of the enclosure system can be suppressed by proper arrangement of the MPPs. Even with open area for airflow, the system still possesses good sound isolation originating from the low-transmission behavior of the ventilated metamaterial. The proposed model system may find potential applications in noise control engineering.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":null,"pages":null},"PeriodicalIF":2.0000,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Mechanica Solida Sinica","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10338-023-00423-x","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
An acoustic enclosure system with both interior sound reduction and air ventilation is designed and demonstrated. The system consists of a rectangular enclosed space coupled with ventilated metamaterials and microperforated panels (MPPs). By modeling the ventilated metamaterial as an impedance boundary condition, an analytic model is developed to characterize the frequency response of interior acoustic fields and evaluate the sound reduction performance of MPP structures. Numerical simulations are conducted to validate the accuracy of the theoretical model. It is found that the resonance response of the enclosure system can be suppressed by proper arrangement of the MPPs. Even with open area for airflow, the system still possesses good sound isolation originating from the low-transmission behavior of the ventilated metamaterial. The proposed model system may find potential applications in noise control engineering.
期刊介绍:
Acta Mechanica Solida Sinica aims to become the best journal of solid mechanics in China and a worldwide well-known one in the field of mechanics, by providing original, perspective and even breakthrough theories and methods for the research on solid mechanics.
The Journal is devoted to the publication of research papers in English in all fields of solid-state mechanics and its related disciplines in science, technology and engineering, with a balanced coverage on analytical, experimental, numerical and applied investigations. Articles, Short Communications, Discussions on previously published papers, and invitation-based Reviews are published bimonthly. The maximum length of an article is 30 pages, including equations, figures and tables