Application of the wave and finite element method to predict the acoustic performance of double-leaf cross-laminated timber panels. Issue 2 (June 2023)

• Record Type: Journal Article
• Authors: Fenemore, Chiaki; Kingan, Michael J; Mace, Brian R
• Is Part Of: Building acoustics. Volume 30:Issue 2(2023)
• Page Start: 203
• Page End: 225
• Publication Date: 2023-06
• Subjects: Cross-laminated timber -- wave and finite element method -- double-leaf walls; Soundproofing -- Periodicals; Architectural acoustics -- Periodicals; Acoustical engineering -- Periodicals; Acoustical engineering; Architectural acoustics; Soundproofing; Periodicals; 693.834
• DOI: 10.1177/1351010X231162483
• Languages: English
• ISSNs: 1351-010X

Abstract

This paper presents a wave and finite element method for predicting the sound transmission loss of double-leaf walls comprising panels of arbitrary complexity separated by a cavity which can contain air or an insulating material. The method is verified against analytical models and validated against a number of different experimental measurements. The method is then used to investigate the effect of various parameters on the sound transmission performance of a double-leaf cross-laminated timber (CLT) wall construction. Parameters investigated include the flow resistivity of the insulating layer separating the wall panels and the effect of panel thickness and orientation. The effect of a neoprene rubber layer in between the CLT panels is also investigated.