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Sound insulation performance of pyramidal truss core sandwich structure with frame.
- Source :
-
Journal of Sandwich Structures & Materials . Feb2022, Vol. 24 Issue 2, p1245-1269. 25p. - Publication Year :
- 2022
-
Abstract
- Recently, sandwich structures have been widely used in different fields because of their good mechanical properties, but these structures are weak in acoustic performance. In this paper, by combining pyramidal truss core sandwich structure with frame, a new structure is proposed with both good mechanical properties and excellent acoustic performance at low frequency. An analytical model of the pyramidal truss core sandwich structure with frame is developed to investigate the sound transmission loss (STL) performance. Finite element method (FEM) is also used to investigate the STL performance at low frequency. The effects of the incident wave angle and the geometrical parameters on the STL of the structure are discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10996362
- Volume :
- 24
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Journal of Sandwich Structures & Materials
- Publication Type :
- Academic Journal
- Accession number :
- 154953682
- Full Text :
- https://doi.org/10.1177/10996362211028899