Characterization for Acoustical Behavior of Wool Assemblies in Density and Thickness Variation

摘要：

Felt is widely made of Wool which can be found in acoustical application. But there is little analysis on acoustical behavior of wool assemblies in density and thickness variation. Here, measurement has shown that the density and thickness both have the effect on the acoustical properties, i.e. the linear reflection coefficient (LRC), linear absorption coefficient (LAC) and transmission loss (TL). It also presents that LAC increases as density is raised. Likely, with the same density, the increase of thickness improves the sound absorption performance. Furthermore, while it is in high density and thickness, TL enhances, indicating that the sound insulation is improved.

关键词： wool assemblies density thickness acoustical behavior

作者: CHEN Ning YU Weidong

作者单位: Textile Materials and Technology Laboratory, Donghua University, Shanghai 201620, P.R.China Textile Materials and Technology Laboratory, Donghua University, Shanghai 201620, P.R.China College

会议类型: 国际会议

会议名称: The 12th International Wool Research Conference(第十二届国际羊毛会议12th IWRC)

会议地点: 上海

会议语种:英文

页码: 950-953

在线出版日期: 2010-10-19（万方平台首次上网日期，不代表论文的发表时间）