Perforated Steel Stud to Improve the Acoustic Insulation of Drywall Partitions
| Autor: | John Robinson, Ahmad Baroutaji, Arun Arjunan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Computer science
Physics QC1-999 Acoustics Acoustic model finite element analysis General Medicine Creative commons A-weighted pink noise sound insulation Finite element method Soundproofing partition walls A-weighted urban noise Sound reduction index acoustic model Drywall perforated studs sound reduction index general_engineering Acoustic insulation |
| Zdroj: | Acoustics Volume 3 Issue 4 Pages 43-695 Acoustics, Vol 3, Iss 43, Pp 679-694 (2021) |
| ISSN: | 2624-599X |
| DOI: | 10.3390/acoustics3040043 |
| Popis: | Steels studs are an inevitable part of drywall construction as they are lightweight and offer the required structural stability. However, the studs act as sound bridges between the plasterboards reducing the overall sound insulation of the wall. Overcoming this often calls for wider cavity walls and complex stud decoupling fixtures that increase the installation cost while reducing the floor area. As an alternative approach, this research reveals the potential of perforated studs to improve the acoustic insulation of drywall partitions. The acoustic and structural performance is characterized using a validated finite element model that acted as a prediction tool in reducing the number of physical tests required. The results established that an acoustic numerical model featuring fluid-structure-interaction can predict the weighted sound reduction index of a stud wall assembly at an accuracy of ±1 dB. The model was used to analyze six perforated stud designs and found to outperform the sound insulation of non-perforated drywall partitions by reducing the sound bridging. Overall, the best performing perforated stud design was found to offer improvements in acoustic insulation of up to 4 dB, while being structurally compliant. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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