頁籤選單縮合
題名 | 木質居住環境之現場音響測試=Field Measurement of Acoustics in Wood Based Living Environment |
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作者姓名(中文) | 莊純合; 陳載永; 王姿玫; 范振德; 陳合進; 賴榮平; | 書刊名 | 林產工業 |
卷期 | 16:3 1997.09[民86.09] |
頁次 | 頁509-525 |
分類號 | 474.3 |
關鍵詞 | 木質環境; 現場音響測試; 餘響時間; 隔音性能; Wood based living environment; Field measurement of acoustics; Reverberation time; Sound insulation property; |
語文 | 中文(Chinese) |
中文摘要 | 本研究之目的在於瞭解木質環境現場之音響特性,測試的現場包括有中興大學森 林學系所的教室、木質材料實驗室及透天式住宅等, 測試方法參考 CNS8463、8465 等規定 ,應用 Cirrus 01dB 音響測試系統, 進行現場的音響測試,內容包括聲音透過損失及餘響 時間的比較及分析;另外,針對門、窗及現場空間的音響缺陷,採用防音及木質材料加以改 善,並探討其改善效應。重要測試結果摘示如下:1. 森林學系教室門之隔音性能改善:門 條之改善效應最佳 (2.36 dB),木門檻之改善效應最差 (1.02dB)。2. 森林研究所教室之隔 音性能改善:門縫加裝吸音棉及門條之改善量最佳 (1.26dB); 在窗戶方面,將窗簾及百葉 窗拉下,再以窗條及門條填塞窗縫時之改善效應最佳 (1.44 dB)。 3. 家具擺置量、屋內是 否裝潢與餘響時間之關係:在 500Hz 時,教室內課桌椅擺置量為 2/3 (0.9 秒 ) 或 3/3 ( 0.75 秒 ) 時較空屋 (1.15 秒 ) 或擺置 1/3(1.1 秒 ) 課桌椅時呈現較適切之餘響時間; 而經木材地板裝潢過之住宅其餘響時間在 500Hz 時比未經裝潢之住宅短 1.67 秒 (較優 ) 。 4. 一般住宅經木質材料內裝或木質家具的擺設,可使室內空間獲得較為適切的餘響時間 ,在交談時可擁有良好的清晰度。 若以 500Hz 為例,空屋時餘響時間為 2.86 秒,而裝潢 後減為0.87 秒。 |
英文摘要 | The purpose of this study was to realize the acoustic properties of wood-based environment. The testing place was including the classrooms which located in the department and institute of forestry, laboratory of wood-based material in NCHU, and general residence. The "Cirrus 01dB" acoustic measuring system was used to test the reverberation time and sound insulation. 1.The door of classroom in Dept. of Forestry:the best was strip(2.36dB), and the worst was threshold(1.02dB) . 2.The door and window of classroom in Institute of Forestry: on the door side, it showed that the best was glassfiber with strip (1.26 dB); on the window side, put the curtain and shutter down, the best was with the strip (1.44dB).3.The reverberation time (Rt.):at 500 Hz, it showed more appropriate when there were 2/3 to 3/3 furniture in house; and the reverberation time of decorated house was shorter than the house without decorating. 4.It was obtained more appropriate reverberation time and clearness if the general residence was decorated with wood based material at 500 Hz, it showed the reverberation time was 2.86s in empty house and 0.87s in wood based decorated house. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。