Hybrid multi-resonators elastic metamaterials for broad low-frequency bandgaps

Li, Yingli; Dong, Xiaohong; Li, Hao; Song, Yong

doi:10.1016/j.ijmecsci.2021.106501

Cited by 16 publications

(4 citation statements)

References 49 publications

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“…For example, Wu et al [95] demonstrated numerically and experimentally the existence of a complete bandgap (CBG) between 114 and 143 kHz in which no guided wave modes propagate in a thin plate with elaborately designed periodic stubs, as shown in figure 19(a). Still, researchers have made a notable effort to develop phononic crystals and elastic metamaterials for low-frequency broadband bandgaps [281][282][283][284][285][286][287][288][289][290][291][292][293][294][295][296][297][298][299]. More detailed information on the bandgap engineering of elastic waves is comprehensively described in a recent review paper in [64].…”

Section: Othersmentioning

confidence: 99%

Elastic metamaterials for guided waves: from fundamentals to applications

Lee,

Kim

2023

Smart Mater. Struct.

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Guided waves, elastic waves propagating through bounded structures, play a pivotal role in various applications, including ultrasonic non-destructive testing and structural health monitoring. Recently, elastic metamaterials artificially engineered to exhibit physical properties not typically seen in nature have emerged as a ground-breaking approach, heralding a new era in guided wave-based technologies. These metamaterials offer innovative solutions to overcome the inherent constraints of traditional guided wave-based technology. This paper comprehensively reviews elastic metamaterials from their fundamental principles to diverse applications, focusing on their transformative impact in guided wave manipulation.

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Section: Othersmentioning

confidence: 99%

Elastic metamaterials for guided waves: from fundamentals to applications

Lee,

Kim

2023

Smart Mater. Struct.

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“…Consequently, the wave manipulation in the low-frequency range is challengeable for the LR metamaterial. In the ordinary way, the major approaches used to broaden the low-frequency bandwidth include devising multi-degreeof-freedom resonator [96][97][98][99][100][101] , introducing an inerter into the local resonator [102][103] , establishing coupling between different resonators [104][105][106][107][108] , devising the graded local resonator by varying the mass and/or the stiffness of the resonator regularly [83,[109][110] , and loading axial forces on the primary structure [111] . Although these efforts belong to passive approaches, they have achieved an improvement of broadening the bandwidth of the low-frequency band gap.…”

Section: Improvement Of Wave Suppression Performancementioning

confidence: 99%

A brief review of metamaterials for opening low-frequency band gaps

Wang

Zhou

Tan

et al. 2022

Appl. Math. Mech.-Engl. Ed.

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Metamaterials are an emerging type of man-made material capable of obtaining some extraordinary properties that cannot be realized by naturally occurring materials. Due to tremendous application foregrounds in wave manipulations, metamaterials have gained more and more attraction. Especially, developing research interest of low-frequency vibration attenuation using metamaterials has emerged in the past decades. To better understand the fundamental principle of opening low-frequency (below 100 Hz) band gaps, a general view on the existing literature related to low-frequency band gaps is presented. In this review, some methods for fulfilling low-frequency band gaps are firstly categorized and detailed, and then several strategies for tuning the low-frequency band gaps are summarized. Finally, the potential applications of this type of metamaterial are briefly listed. This review is expected to provide some inspirations for realizing and tuning the low-frequency band gaps by means of summarizing the related literature.

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“…Although bandgaps that can be extended to the low frequency range have been found, the potential of locally resonant band gaps remains unexploited to a large extent as a result of the narrow bandwidth and the high frequency range relative to the frequency range actually required in engineering practice. In order to achieve much broader band gaps than those of a locally resonant beam with periodic oscillators, scholars in this field have done a lot of innovative explorations such as homogeneous beams with multiple arrays of damped resonators [5,6], multiple resonators containing negative-stiffness mechanisms [7] and two-degreeof-freedom uncoupled force-moment type resonators [8][9][10], sandwich beams with multiple dissipative resonators in the sandwich core material [11], and the elastic metamaterial beams in a nonlinear dissipative mass-spring chain [12], with interconnected local resonators [13], with multiple resonators [14][15][16][17][18], with disordered local resonators [19] and with multi-degree-of-freedom hybrid resonators [20] as well as the beam-type metastructures containing a periodic array of single-frequency force resonators [21]. Numerical results show that these innovative measures can effectively increase the bandwidth of the band gaps.…”

Section: Introductionmentioning

confidence: 99%

Multiple resonances, fragmented propagation and homogenized attenuation of the beam model coupled with bi-periodic resonators

Tang

Ran

Zhang

et al. 2023

Preprint

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Wave propagation and attenuation behaviours of beam-resonators coupling model are dominated by the local resonators and the periodicity. Inspired by bi-periodic structures in engineering practice and based on a previous study, beam models coupled with bi-periodic resonators are proposed by introducing a parametric variant resonator into the periodic model. Wavenumber spectrum relation of the bi-periodic coupling system with a parametric variant resonator and several regular resonators is obtained by means of the method of reverberation-ray matrix and solved by numerical techniques. Effects of various parameters of the parametric variant resonator on the wavenumber spectrum characteristics of the bi-periodic models are investigated in numerical examples, which show that the parametric variant resonator results in an additional resonant peak and extra non-local resonant attenuation bands. Bandwidth of the local resonant attenuation band can be broadened by either increasing the translational stiffness or decreasing the mass of the parametric variant resonator. Compared to wavenumber spectrum curves of the beam model coupled with periodic resonators, the introduction of the parametric variant resonator makes the wavenumber spectrum curves of the real part divided into more curved and straight segments in an alternating presentation. The appearance of extra non-local resonant attenuation bands and the decrease of attenuation performance of the original non-local resonant attenuation bands indicates that the attenuation capability of the non-local resonant attenuation bands is homogenized in the frequency domain for the bi-periodic coupling system. The innovative findings and practical suggestions in the whole frequency range could provide potential references for the researchers and engineers in vibration reduction design of bi-periodic structures in engineering practice.

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Hybrid multi-resonators elastic metamaterials for broad low-frequency bandgaps

Cited by 16 publications

References 49 publications

Elastic metamaterials for guided waves: from fundamentals to applications

Elastic metamaterials for guided waves: from fundamentals to applications

A brief review of metamaterials for opening low-frequency band gaps

Multiple resonances, fragmented propagation and homogenized attenuation of the beam model coupled with bi-periodic resonators

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