Modeling and Sound Insulation Performance Analysis of Two Honeycomb-hole Coatings

Ye, H. F.; Tao, Mengmeng; Zhang, W. Z.

doi:10.1088/1742-6596/1016/1/012001

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…Furthermore, an equivalent fluid model was established for processing acoustic coatings with periodically distributed and axisymmetric cavities [22]. The sound insulation performance of two types of honeycomb acoustic coatings was studied, and it was concluded that the negative Poisson’s one has better sound insulation performance at a certain frequency [23], as shown in Figure 4h. The effectiveness of the use of small air Helmholtz resonator structure was studied, and the echo suppression results showed that the resonator has a broad application prospect in achieving underwater stealth [24].…”

Section: Local Design Of Acoustic Coatingsmentioning

confidence: 99%

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From Local Structure to Overall Performance: An Overview on the Design of an Acoustic Coating

et al. 2019

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Based on the requirements of underwater acoustic stealth, the classification and research background of acoustic coatings are introduced herein. The research significance of acoustic coatings is expounded from the perspective of both the military and civilian use. A brief overview of the conventional design process of acoustic coatings is presented, which describes the substrates used in different countries. Aimed at the local design of acoustic coatings, research progress on passive and semi-active/active sound absorption structure is summarized. Focused on the passive acoustic coatings; acoustic cavity design and optimization, acoustic performance of acoustic coatings with rigid inclusions or scatterers, and acoustic coatings with a hybrid structure are discussed. Moreover, an overview of the overall design of acoustic coatings based on the sound field characteristics of the submarine is also presented. Finally, the shortcomings of the research are discussed, breakthroughs in acoustic coating design research are forecast, and the key technical issues to be solved are highlighted.

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Section: Local Design Of Acoustic Coatingsmentioning

confidence: 99%

“…( g ) Sketch of the optimization area for the cavity, initial cavity, optimized cavity, and radiated sound power associated with different coatings attached to an infinite plate [22]. ( h ) Sound transmission loss and displacement contour of the negative Poisson’s ratio honeycomb-hole coatings [23].…”

Section: Figurementioning

confidence: 99%

From Local Structure to Overall Performance: An Overview on the Design of an Acoustic Coating

et al. 2019

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“…Auxetic metamaterials have the following improved mechanical properties: (a) in-plane indentation resistance 10,11 ; (b) shear resistance [12][13][14] ; (c) synclastic behavior 15,16 ; (d) energy absorption [17][18][19][20][21][22][23][24][25][26][27][28] ; (e) fracture toughness [29][30][31] ; (f) negative compliance [32][33][34] ; and (g) sound insulation. [35][36][37] A novel auxetic honeycomb was produced with enhanced inplane crushing strength. [38][39][40] The sign and magnitude of Poisson's ratio are determined by two key factors: the geometry and deformation mechanism(s) of the internal structure of a material.…”

Section: Introductionmentioning

confidence: 99%

“…Auxetics also can be called mechanical metamaterials. Auxetic metamaterials have the following improved mechanical properties: (a) in‐plane indentation resistance 10,11 ; (b) shear resistance 12–14 ; (c) synclastic behavior 15,16 ; (d) energy absorption 17–28 ; (e) fracture toughness 29–31 ; (f) negative compliance 32–34 ; and (g) sound insulation 35–37 . A novel auxetic honeycomb was produced with enhanced in‐plane crushing strength 38–40 …”

Section: Introductionmentioning

confidence: 99%

Characteristics of the 3D‐printed composite material in different raster orientations under thermal effects

Fan,

Lin,

Huang

et al. 2024

Polymer Engineering & Sci

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In this study, polylactic acid (PLA) and thermoplastic polyurethane (TPU) were used to fabricate composite materials with different raster orientations by a 3D printing process. The idea of this study came from the fact that in nature, many plants have vertical or horizontal lines on their leaves or branches. The authors made use of the composite material of a material structure under a thermal effect to achieve the material concept. Finally, their characteristics were observed by applying a thermal effect, tensile tests (to evaluate toughness), and a dynamic mechanical analysis (tan δ to evaluate energy absorption). After a thermal effect (temperature) from a heat source was applied, it was found that the material exhibited negative Poisson's ratio (NPR) characteristic. A single material with two layers on 00 raster orientation of a material in this study had the maximum tan δ (energy absorption), an NPR, and toughness regardless of the kind of material. Among the composite materials, 0° raster orientation of them also had a larger NPR, and the absolute value of Poisson's ratio decreased as the temperature increased.Highlights The innovative two‐layer composite material fabricated by 3D printing. The material characteristics with various raster orientations are discussed. PLA0 has the largest tan δ, toughness, and negative Poisson's ratio.

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Mechanical properties of concrete composites with auxetic single and layered honeycomb structures

Zhong

Ren

Zhang

et al. 2022

Construction and Building Materials

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Modeling and Sound Insulation Performance Analysis of Two Honeycomb-hole Coatings

Cited by 8 publications

References 3 publications

From Local Structure to Overall Performance: An Overview on the Design of an Acoustic Coating

From Local Structure to Overall Performance: An Overview on the Design of an Acoustic Coating

Characteristics of the 3D‐printed composite material in different raster orientations under thermal effects

Mechanical properties of concrete composites with auxetic single and layered honeycomb structures

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