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Wave propagation in...
Wave propagation in sandwich panels with a poroelastic core
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- Liu, Hao (author)
- KTH,MWL Marcus Wallenberg Laboratoriet
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- Finnveden, Svante (author)
- KTH,MWL Marcus Wallenberg Laboratoriet
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- Barbagallo, Mathias (author)
- KTH,MWL Marcus Wallenberg Laboratoriet
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- Lopez Arteaga, Ines (author)
- KTH,MWL Marcus Wallenberg Laboratoriet
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(creator_code:org_t)
- Acoustical Society of America (ASA), 2014
- 2014
- English.
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In: Journal of the Acoustical Society of America. - : Acoustical Society of America (ASA). - 0001-4966 .- 1520-8524. ; 135:5, s. 2683-2693
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- Wave propagation in sandwich panels with a poroelastic core, which is modeled by Biot's theory, is investigated using the waveguide finite element method. A waveguide poroelastic element is developed based on a displacement-pressure weak form. The dispersion curves of the sandwich panel are first identified as propagating or evanescent waves by varying the damping in the panel, and wave characteristics are analyzed by examining their motions. The energy distributions are calculated to identify the dominant motions. Simplified analytical models are also devised to show the main physics of the corresponding waves. This wave propagation analysis provides insight into the vibro-acoustic behavior of sandwich panels lined with elastic porous materials.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Keyword
- Finite-Element-Method
- Sound-Transmission
- Fluid
- Motion
- Equations
- Guides
- Plates
- Formulations
- Prediction
- Media
Publication and Content Type
- ref (subject category)
- art (subject category)
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