Reduction of the sound transmission of a periodic sandwich plate using the stop band concept

Song, Yubao; Feng, Leping; Wen, Jihong; Yu, Dianlong; Wen, Xisen

doi:10.1016/j.compstruct.2015.02.053

Cited by 88 publications

(41 citation statements)

References 44 publications

(79 reference statements)

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“…A resonance-based stop band for the acoustically relevant out-of-plane bending waves can generate a frequency zone of increased sound transmission loss (STL), strongly outperforming the acoustic mass-law. This has been investigated for among others LRM plates [6][7][8][9][10][11][12][13], double-walls [14][15][16], sandwich panels [15,17], solids [1,18] and enclosures [19]. In this work, LRM plates composed of a flat plate host structure with sub-wavelength, periodically attached resonators are considered.…”

Section: Introductionmentioning

confidence: 99%

The impact of damping on the sound transmission loss of locally resonant metamaterial plates

Belle

Claeys

Deckers

et al. 2019

Journal of Sound and Vibration

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Section: Introductionmentioning

confidence: 99%

The impact of damping on the sound transmission loss of locally resonant metamaterial plates

Belle

Claeys

Deckers

et al. 2019

Journal of Sound and Vibration

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show abstract

“…The interference SBs rely on Bragg scattering resulting from periodicity. While the STL of LRM plates has received increasing interest [2][3][4][5][6], PC plates for STL improvements are less investigated [7]. Besides, the STL of LRM and PC plates is often only analyzed for infinite periodic structures, discarding finite structure effects.…”

Section: Introductionmentioning

confidence: 99%

The acoustic insulation performance of infinite and finite locally resonant metamaterial and phononic crystal plates

et al. 2019

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The bending wave stop band behavior of locally resonant metamaterial and phononic crystal plates can strongly improve the vibration performance of flexible plates in targeted frequency ranges. Their acoustic insulation performance, however, is found to strongly depend on the stop band mechanism, also influencing the frequency range of improvement. While sound transmission loss improvements are predicted for both infinite periodic plates, the finite phononic crystal plate performance can differ significantly.

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“…Moreover, the three methods produced a good representation of the STL at low, medium and high frequency range. Song et al [137] numerically studied the STL of sandwich plate using the stop band concept. A stepped resonator was attached to the sandwich plate and was compared with sandwich plate without stop band.…”

Section: Numerical Vs Analytical Verificationmentioning

confidence: 99%

Comparative Study of Sound Transmission Losses of Sandwich Composite Double Panel Walls

2020

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The increasing motivation behind the recently wide industrial applications of sandwich and composite double panel structures stems from their ability to absorb sounds more effectively. Meticulous selection of the geometrical and material constituents of both the core and panels of these structures can produce highly desirable properties. A good understanding of their vibro-acoustic response and emission index such as the sound transmission loss (STL) is, therefore, a requisite to producing optimal design. In this study, an overview of recent advances in STL of sandwich and composites double panels is presented. At first, some salient explanation of the various frequency and controlled regions are given. It then critically examines a number of parameter effects on the STL of sandwich and composite structures. Literatures on the numerical, analytical and experimental solutions of STL are systematically presented. Efficient and more reliable optimization problems that maximize the STL and minimize the objective functions capable of degrading the effectiveness of the structure to absorb sounds are also provided.

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Reduction of the sound transmission of a periodic sandwich plate using the stop band concept

Cited by 88 publications

References 44 publications

The impact of damping on the sound transmission loss of locally resonant metamaterial plates

The impact of damping on the sound transmission loss of locally resonant metamaterial plates

The acoustic insulation performance of infinite and finite locally resonant metamaterial and phononic crystal plates

Comparative Study of Sound Transmission Losses of Sandwich Composite Double Panel Walls

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