Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : July 18, 2024
Fiber-based porous sound-absorbing materials, such as glass wool, are used in a wide range of applications due to their manufacturability and performance. However, fragile surfaces may require a protective layer. Sound absorption can be reduced or improved depending on the protective layer. In this study, non-woven fabrics and PE membranes are added to the glass wool surface to protect the surface and to improve the sound absorption coefficient. Theoretical analysis using the transfer matrix method was conducted to estimate the sound absorption characteristics. The normal incident sound absorption coefficient of the fabricated samples was also measured.
