Broadband low-frequency membrane-type acoustic metamaterials with multi-state anti-resonances

Zhou, Guojian; Wu, Jiu Hui; Lu, Kuan; Xie, Tian; Huang, Wei; Zhu, Keda

doi:10.1016/j.apacoust.2019.107078

Cited by 54 publications

(35 citation statements)

References 40 publications

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“…It is illustrated that within the selected low-frequency range, the reference model can generate a series of continuous, multi-state anti-resonance modes by virtue of the symmetrically distributed multi-resonators, which can keep trapping the vibration energy and maintain the dynamic balances within a relatively broad bandwidth, leading to a broadband, low-frequency sound-isolation performance. Such multi-set anti-resonance behaviors of the reference model agree with the observation in the reported research [ 35 ]. In that work, it was also demonstrated that the STL bandwidth and attenuation peaks of the reference model are greatly improvement compared to the other traditional MAM structures.…”

Section: Resultssupporting

confidence: 91%

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Spider Web-Inspired Lightweight Membrane-Type Acoustic Metamaterials for Broadband Low-Frequency Sound Isolation

et al. 2021

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Membrane-type acoustic metamaterial (MAM) has exhibited superior sound isolation properties, as well as thin and light characteristics. However, the anti-resonance modes of traditional MAMs are generated intermittently in a wide frequency range causing discontinuities in the anti-resonance modes. Achieving broadband low-frequency sound attenuation with lightweight MAM design is still a pivotal research aspect. Here, we present a strategy to realize wide sound-attenuation bands in low frequency range by introducing the design concept of bionic configuration philosophy into the MAM structures. Built by a polymeric membrane and a set of resonators, two kinds of MAM models are proposed based on the insight of a spider web topology. The sound attenuation performance and physical mechanisms are numerically and experimentally investigated. Multi-state anti-resonance modes, induced by the coupling of the bio-inspired arrangement and the host polymer film, are systematically explored. Significant sound attenuation is numerically and experimentally observed in both the lightweight bio-inspired designs. Remarkably, compared with a traditional MAM configuration, a prominent enhancement in both attenuation bandwidth and weight-reduction performance is verified. In particular, the bio-inspired MAM Model I exhibits a similar isolation performance as the reference model, but the weight is reduced by nearly half. The bio-inspired Model II broadens the sound attenuation bandwidth greatly; meanwhile, it retains a lighter weight design. The proposed bio-inspired strategies provide potential ways for designing sound isolation devices with both high functional and lightweight performance.

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Section: Resultssupporting

confidence: 91%

“…Models I and II are designed based on the optimized bionic structure design. In addition, a reference model taken from the existing work, Model III, is selected for comparison [ 35 ].…”

Section: Structural Design and Methodsmentioning

confidence: 99%

Spider Web-Inspired Lightweight Membrane-Type Acoustic Metamaterials for Broadband Low-Frequency Sound Isolation

et al. 2021

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“…The vibration power flow of metamaterial plate was obtained by using the finite element method and the energy flow method, so as to reveal its vibration suppression mechanism. In 2020, Zhou et al [50] proposed a polymorphic anti-resonance cooperative thin-film acoustic metamaterial (see Figure 13). The material consists of four metal foils and a cross-shaped flexible ethylene-vinyl acetate (EVA) material swing arm attached to the surface of a polyimide (PI) film, and uses EVA material as a frame.…”

Section: Thin Film Acoustic Metamaterialsmentioning

confidence: 99%

“…In 2015, Li et al [53] designed a curly space structure composed of a Jerusalem cross groove air matrix periodically arranged in a square lattice. It is found that the structure can generate a large band gap in low frequency mode, and the band gap formation mechanism is the resonance mode of In 2020, Zhou et al [50] proposed a polymorphic anti-resonance cooperative thin-film acoustic metamaterial (see Figure 13). The material consists of four metal foils and a cross-shaped flexible ethylenevinyl acetate (EVA) material swing arm attached to the surface of a polyimide (PI) film, and uses EVA material as a frame.…”

Section: Space Coiling Structuresmentioning

confidence: 99%

A Review of Acoustic Metamaterials and Phononic Crystals

2020

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As a new kind of artificial material developed in recent decades, metamaterials exhibit novel performance and the promising application potentials in the field of practical engineering compared with the natural materials. Acoustic metamaterials and phononic crystals have some extraordinary physical properties, effective negative parameters, band gaps, negative refraction, etc., extending the acoustic properties of existing materials. The special physical properties have attracted the attention of researchers, and great progress has been made in engineering applications. This article summarizes the research on acoustic metamaterials and phononic crystals in recent decades, briefly introduces some representative studies, including equivalent acoustic parameters and extraordinary characteristics of metamaterials, explains acoustic metamaterial design methods, and summarizes the technical bottlenecks and application prospects.

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“…In 2008, Yang et al proposed a thin film acoustic metamaterial with an acoustic bandgap in a frequency range of 200-300 Hz [3]. Subsequently, other researchers studied the structure of membrane-type acoustic metamaterials, designed acoustic metamaterials with different structures, and explored their acoustic isolation properties [4][5][6]. It can be seen that membrane-type acoustic metamaterials exhibit excellent performance in the field of low-frequency sound insulation and vibration damping and provide a new path for low-frequency vibration and noise reduction protection in naval structures.…”

Section: Introductionmentioning

confidence: 99%

Research on the Sound Insulation Properties of Membrane-type Acoustic Metamaterials

Hao¹,

Guo²,

Jian³

et al. 2021

E3S Web Conf.

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Low- and medium-frequency noise from ship cabins is difficult to control effectively. Excessive noise can seriously affect the acoustic stealth performance of ships. A novel membrane-type acoustic metamaterial is proposed in this paper with light weight and good sound insulation performance at low frequencies. The sound insulation performance of the metamaterial structure is analysed by using the acoustic-solid coupling module in COMSOL software. Then, the ability to change the sound insulation performance of membrane-type acoustic metamaterials with cell structure and material parameters is obtained. The research results in this paper provide powerful technical support for noise control in ship cabins.

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Broadband low-frequency membrane-type acoustic metamaterials with multi-state anti-resonances

Cited by 54 publications

References 40 publications

Spider Web-Inspired Lightweight Membrane-Type Acoustic Metamaterials for Broadband Low-Frequency Sound Isolation

Spider Web-Inspired Lightweight Membrane-Type Acoustic Metamaterials for Broadband Low-Frequency Sound Isolation

A Review of Acoustic Metamaterials and Phononic Crystals

Research on the Sound Insulation Properties of Membrane-type Acoustic Metamaterials

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