Experimental study on airborne sound insulation performance of lightweight double leaf panels

To create a healthy and comfortable indoor environment, higher requirements are put forward for the air-borne sound insulation performance of buildings. The control of airborne noise transmission is a key measure to improve the airborne sound insulation performance of buildings. In this study, the airborne sound insulation performance of the lightweight double leaf wall was studied, and the influence of stud type, stud spacing, cavity filling (type and thickness of filling materials), panel layers (type, layer number, thickness and mass) on the airborne sound insulation performance of the lightweight wall was emphat-ically analyzed. The test results show that the airborne sound insulation performance of the lightweight double leaf wall can be improved by the following five measures: (1) increasing the stud spacing; (2) expanding the size of the independent panel; (3) using stone wool or glass wool as the filling materials; (4) increasing the number of panel layers or panel mass; and (5) reducing the structural connection.(c) 2022 Elsevier Ltd. All rights reserved.

Automated summary

Higher requirements are put forward for the air-borne sound insulation performance of buildings in order to create a healthy and comfortable indoor environment. This study focuses on the airborne sound insulation performance of lightweight double leaf walls and analyzes the influence of factors such as stud type, stud spacing, cavity filling materials, and panel layers on the performance. Five measures to improve the airborne sound insulation performance are identified.