Corn husk for noise reduction: Robust acoustic absorption and reduced thickness. (May 2018)

• Record Type: Journal Article
• Authors: Tang, Xiaoning; Zhang, Xiansheng; Zhang, Huiping; Zhuang, Xingmin; Yan, Xiong
• Is Part Of: Applied acoustics. Volume 134(2018)
• Page Start: 60
• Page End: 68
• Publication Date: 2018-05
• Subjects: Corn husk -- Multi-layer -- Back cavity -- Noise reduction -- Acoustic absorption; Acoustical engineering -- Periodicals; Periodicals; 620.2
• DOI: 10.1016/j.apacoust.2018.01.012
• Languages: English
• ISSNs: 0003-682X

Abstract

Abstract: Corn husk extracted from maize is a potential candidate for the application of noise reduction. The overall goal of this study is to investigate the acoustic absorption properties of corn husk. The effects of multi-layer structure on the acoustic absorption coefficient were studied. The results indicated that acoustic absorption was not improved with the increase of layers, while the acoustic absorption peak gradually moves to lower frequency direction. Furthermore, it has been observed that the increase of back cavity distance can also increase the absorption coefficient at low frequency range.