Numerical Analysis of Vibroacoustic Response of Timber Floor Panels Damped with Porous Materials
This research aims to investigate the impact of incorporating porous materials on reducing noise and vibration in wooden floor panels, and to analyze the vibroacoustic performance of the assembled panel under different types of excitation and boundary conditions, particularly in the lower frequency...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/21/11931 |
| _version_ | 1797632172490752000 |
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| author | Magdalini Titirla Walid Larbi |
| author_facet | Magdalini Titirla Walid Larbi |
| author_sort | Magdalini Titirla |
| collection | DOAJ |
| description | This research aims to investigate the impact of incorporating porous materials on reducing noise and vibration in wooden floor panels, and to analyze the vibroacoustic performance of the assembled panel under different types of excitation and boundary conditions, particularly in the lower frequency range. The study begins with an experimental investigation and numerical modeling to determine the mechanical properties of the orthotropic wood material used in the floor panels. Subsequently, a finite element formulation, based on a variational approach, is presented to study the vibroacoustic response of an elastic structure coupled with a porous material exhibiting realistic behavior. The porous material is characterized by two phases: solid and fluid, represented in the formulation through the displacement field for the solid phase and the pressure for the fluid phase. This formulation offers the advantage of reduced computation cost and simplifies the coupling between all domains. To calculate the acoustic radiation of the structure, the Rayleigh integral is employed. Utilizing the proposed numerical approach, a comprehensive study is conducted to analyze the reduction in vibration–acoustic response of the floor with the incorporated porous layer, taking into account different types of excitation and boundary conditions applied to the system. |
| first_indexed | 2024-03-11T11:34:08Z |
| format | Article |
| id | doaj.art-f0abeab90dcd4b5d8a6828e78bd82dbc |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T11:34:08Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-f0abeab90dcd4b5d8a6828e78bd82dbc2023-11-10T14:59:12ZengMDPI AGApplied Sciences2076-34172023-10-0113211193110.3390/app132111931Numerical Analysis of Vibroacoustic Response of Timber Floor Panels Damped with Porous MaterialsMagdalini Titirla0Walid Larbi1Laboratory of Structural Mechanics and Coupled Systems (LMSSC), Conservatoire National des Arts et Métiers (CNAM), 75003 Paris, FranceLaboratory of Structural Mechanics and Coupled Systems (LMSSC), Conservatoire National des Arts et Métiers (CNAM), 75003 Paris, FranceThis research aims to investigate the impact of incorporating porous materials on reducing noise and vibration in wooden floor panels, and to analyze the vibroacoustic performance of the assembled panel under different types of excitation and boundary conditions, particularly in the lower frequency range. The study begins with an experimental investigation and numerical modeling to determine the mechanical properties of the orthotropic wood material used in the floor panels. Subsequently, a finite element formulation, based on a variational approach, is presented to study the vibroacoustic response of an elastic structure coupled with a porous material exhibiting realistic behavior. The porous material is characterized by two phases: solid and fluid, represented in the formulation through the displacement field for the solid phase and the pressure for the fluid phase. This formulation offers the advantage of reduced computation cost and simplifies the coupling between all domains. To calculate the acoustic radiation of the structure, the Rayleigh integral is employed. Utilizing the proposed numerical approach, a comprehensive study is conducted to analyze the reduction in vibration–acoustic response of the floor with the incorporated porous layer, taking into account different types of excitation and boundary conditions applied to the system.https://www.mdpi.com/2076-3417/13/21/11931porous materialtimber floor panelvibroacousticnumerical modelingexperimental material characterization |
| spellingShingle | Magdalini Titirla Walid Larbi Numerical Analysis of Vibroacoustic Response of Timber Floor Panels Damped with Porous Materials Applied Sciences porous material timber floor panel vibroacoustic numerical modeling experimental material characterization |
| title | Numerical Analysis of Vibroacoustic Response of Timber Floor Panels Damped with Porous Materials |
| title_full | Numerical Analysis of Vibroacoustic Response of Timber Floor Panels Damped with Porous Materials |
| title_fullStr | Numerical Analysis of Vibroacoustic Response of Timber Floor Panels Damped with Porous Materials |
| title_full_unstemmed | Numerical Analysis of Vibroacoustic Response of Timber Floor Panels Damped with Porous Materials |
| title_short | Numerical Analysis of Vibroacoustic Response of Timber Floor Panels Damped with Porous Materials |
| title_sort | numerical analysis of vibroacoustic response of timber floor panels damped with porous materials |
| topic | porous material timber floor panel vibroacoustic numerical modeling experimental material characterization |
| url | https://www.mdpi.com/2076-3417/13/21/11931 |
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