| 车奕辰.大厚度差真空玻璃隔声特性研究[J].声学技术,2022,41(6):903~908 |
| 大厚度差真空玻璃隔声特性研究 |
| Study on the sound insulation characteristics of vacuum insulating glazing with large thickness difference |
| 投稿时间：2022-07-25 修订日期：2022-08-15 |
| DOI：10.16300/j.cnki.1000-3630.2022.06.016 |
| 中文关键词: 大厚度差 真空玻璃 现场声强测量 厚板 隔声特性 |
| 英文关键词: large thickness difference vacuum insulating glazing field sound intensity measurement thick panel sound insulation characteristics |
| 基金项目:上海市科委科研计划项目（19DZ1201303）。 |
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| 中文摘要: |
| Cabrera和Nugroho等人对3v3（3 mm单层玻璃+0.2 mm真空层+3 mm单层玻璃）、3v5以及5v5构造的真空玻璃进行了研究，结果表明真空玻璃的隔声特性符合薄板隔声理论，但10 mm单层玻璃较符合厚板隔声理论。因此需进一步研究当真空玻璃的厚度进一步增大后的隔声特性。文章增加真空玻璃厚度至3v10，采用现场声强测量法进行隔声测量，基于Davy和Sharp隔声理论建立了隔声模拟模型，对实测和模拟特性进行对比分析。结果表明，3v10真空玻璃的隔声特性更符合厚板隔声理论。与3v5真空玻璃相比，3v10真空玻璃的计权修正表观隔声量未明显提高，但有助于降低现场隔声等级隔声最低值与评价量之间的差值。 |
| 英文摘要: |
| Cabrera and Nugroho et al. studied the sound insulation characteristics of 3v3 (3 mm transparent glass + 0.2 mm vacuum layer + 3 mm transparent glass), 3v5, and 5v5 vacuum insulating glazing. The results show that the vacuum insulating glazing follows the thin panel theory, but the 10 mm single pane glass is more in line with the thick panel theory. Therefore, the sound insulation characteristics of vacuum insulating glazing need to be studied when the thickness of the glass is further increased. In this paper, the thickness of the vacuum insulating glazing is increased to 3v10, and the sound insulation measurements are carried out by the field sound intensity measurement method. A sound insulation simulation model based on Davy and Sharp's theory has been developed to compare the measured and simulated characteristics. The results show that the sound insulation characteristics of 3v10 vacuum insulating glazing follow the thick panel theory. Compared with 3v5, the weighted modified apparent sound intensity reduction index of 3v10 vacuum insulating glazing is not improved obviously, but it is helpful to reduce the difference between the lowest value and rating value of field sound transmission class. |
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