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題名 | 室內裝修表面形狀與散射性能對空間聲場影響之模擬=Effects of Decoration with Different Shapes and Scattering Properties on Interior Sound Field by Simulation |
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作者 | 林芳銘; 黃琨智; Lin, Fang-ming; Huang, Kun-zhi; |
期刊 | 空間設計學報 |
出版日期 | 20101200 |
卷期 | 10 2010.12[民99.12] |
頁次 | 頁1-12 |
分類號 | 334.5、334.5 |
語文 | chi |
關鍵詞 | 室內裝修; 散射性能; 電腦模擬; 迴響時間; Decoration; Scattering properties; Simulation; Reverberation time; |
中文摘要 | 本研究以小型空間為對象(室容積約45 m3),運用電腦模擬聲場預估方法,探討室內裝修形狀與散射特性對空間聲場之影響。研究結果顯示,相對於矩形空間,改變室內裝修形狀會降低中低頻迴響時間;提高側牆散射係數則使各模式之迴響時間均明顯降低,並使各頻率間迴響時間差距縮小。改變室內裝修形狀並提高側牆散射係數則使聲音較快衰減,且較平順,明晰度亦提高。經由模擬分析,小型空間若四面牆均為反射性牆面,則室內裝修形狀與側牆散射係數之改變對空間總聲壓位準分布並無顯著影響;當前後牆為吸音牆面,則提高側牆散射係數可縮小空間總聲壓位準之差距,有助聲壓分布之均勻性。本研究成果可應用於小型空間之聲場輔助設計。 |
英文摘要 | In this study, a small space with 45 m3 volume was used as the object to Investigate the effects of decoration with different shapes and scattering properties on interior sound field by simulation. The results showed that, because of decoration with different shapes and scattering properties ,the reverberation time (RT) was reduced and sound decay rapidly. There was not significant effect of decoration with different shapes and scattering properties on total SPL distribution when the four walls were reflective wall. On the other hand, there was effects of side wall with scattering properties on total SPL distribution when the front and rear walls were sound-absorbing wall. The results is helpful to sound environment design. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。