| 研究生: |
郭建亨 Guo, Jian-Heng |
|---|---|
| 論文名稱: |
多層空氣層吸音特性之研究 A Study of Sound Absorption Characteristics on Multi Air Layer |
| 指導教授: |
賴榮平
Lai, Rong-Ping |
| 學位類別: |
碩士 Master |
| 系所名稱: |
規劃與設計學院 - 建築學系 Department of Architecture |
| 論文出版年: | 2011 |
| 畢業學年度: | 99 |
| 語文別: | 中文 |
| 論文頁數: | 122 |
| 中文關鍵詞: | 多層空氣層 、吸音構造 、吸音係數 |
| 外文關鍵詞: | Multi Air Layer, Sound Absorption Construction, Sound Absorption Coefficient |
| 相關次數: | 點閱:136 下載:8 |
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摘要
綜合國內外相關研究顯示,吸音構造背後預留空氣層有助於吸音性能之提升,而空氣層的位置、厚度、形狀、層數對吸音性能亦有一定程度之影響,而空氣層之設置,一般對於吸音構造裝設時表面材與背貼材至壁面,其間隔有一定空氣層因此產生。表面材或背貼材之配置方式除影響空氣層厚度,亦對空氣層之數量、厚度造成影響,此外又因表面材或背貼材裝設方式或材料形狀之差異,對空氣層形狀造成影響,而一般多採表面材與背貼材平行裝設的方式,故本研究以空氣層變化為主要研究對象,探討多層之空氣層對吸音特性之影響。空氣層吸音特性之考量除過去探討之空氣層厚度,尚未探討空氣層層數對吸音特性之影響。故本研究整理常用之吸音構造,以多層空氣層為研究對象;以玻璃棉堆疊之設置為空氣層層數之主要變因,並搭配版狀構造與穿孔板構造為表面材吸音特性變因,以了解多層空氣層之吸音特性。實驗結果顯示,在層數多寡與背貼材的位置其吸音特性如下:(1)背貼材緊密與表面材接合之吸音特性,在中、高頻吸音特性優於緊貼壁面。(2)單層空氣層與多層空氣層吸音特性於低、中頻有顯著差異。
Abstract
According to lots of domestic and oversea studies, sound-absorbing construction with air layer on the back helps to raise sound absorption performance and which is also influenced by the place, thickness, shape and quantity of air layer more or less. There is air layer between surface material and back sticking material to wall when installing sound absorption construction. The layouts of surface material or back sticking material affect not only the thickness of air layer but the quantity of air layer. In addition, the differences between the installing types and material shape of surface material or back sticking material affect the shape of air layer. Generally, surface material and back sticking material are parallel. In this research, the variation of air layer was studied that how multi air layers influence sound absorption coefficients. Except for the thickness of air layer, the quantity of air layer not considered in air layer absorption attributes presently. In the research, the multi air layer was studied collecting common sound-absorbing construction. The setting of fiberglass stacking was the main variables of air layer; slab construction and perforated board was the variable of surface material sound absorption characteristics. Experimental result showed: (1) Sound absorption characteristics of close back sticking material and bonding surface material were better than which attach closely to wall at high and middle frequency noise. (2) Sound absorption characteristics in single and multi-air layer significantly differ at low and middle frequency noise.
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