Acoustic Absorption Behaviour of the Compound Aluminum-Alleged Foam in Low Frequencies

摘要：

Metal foams, especially open-celled foams, have been greatly improved in the acoustic performance in high frequencies. In this paper, the acoustic absorption behaviour of the compound Al-alleged foam in low frequencies was studied. The compound Al-alleged foam is composed of two Al foam plates and an air-gap which between the two Al foam plates. The absorption coefficient of the foam at low frequencies was measured in different conditions by means of standing wave tube and the acoustic absorption regularity of the foam was studied.

关键词： acoustic absorption compound aluminum-alleged foam low frequencies air-gap

作者: Xiaohong Zhang Haibin Li Chunmei Cao Songling Wang

作者单位: School of Mathematics and Physics North China Electric Power University Baoding,China Department of Power North China Electric Power University Baoding,China

会议类型: 国际会议

会议名称: The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-06-11（万方平台首次上网日期，不代表论文的发表时间）