Abstract:
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.