Bandgap analysis of a tunable elastic-metamaterial-based vibration absorber with electromagnetic stiffness

Yoo, Junsun; Park, No Cheol

doi:10.1007/s00542-020-04807-8

Cited by 5 publications

(2 citation statements)

References 22 publications

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“…7. To be specific, the electrical elements (current/voltage/inductance/ resistance) [73,[86][87][88][89][90][91] , the air pressure (see Fig. 7(a)) [30,92] , and the temperature (see Fig.…”

Section: Band Gap Tuning Based On Adjustable Stiffnessmentioning

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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“…7. To be specific, the electrical elements (current/voltage/inductance/ resistance) [73,[86][87][88][89][90][91] , the air pressure (see Fig. 7(a)) [30,92] , and the temperature (see Fig.…”

Section: Band Gap Tuning Based On Adjustable Stiffnessmentioning

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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“…In comparison, utilizing external sources to adjust the properties of AMMs has higher control precision and faster response speed, especially suitable for complex dynamic vibro-acoustic environments, which are referred to as active AMMs (AAMMs). The working band of AAMMs can be tuned through a variety of physical mechanisms, including but not limited to piezoelectric [22][23][24][25][26], electromagnetic [27][28][29], temperature [30], air pressure [31], electroactive materials [32], etc. The diverse bandgaps manipulation manners have brought great development opportunities for AMMs, yet there is still a considerable amount of research that needs further explored.…”

Section: Introductionmentioning

confidence: 99%

A locally resonant metamaterial beam with tunable electromagnetic stiffness based on the electromechanical analogy network

Deng,

He,

et al. 2024

Smart Mater. Struct.

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Locally resonant acoustic metamaterials offer distinctive advantages in controlling low-frequency elastic waves. However, passive structures often face limitations due to narrow bandgaps and fixed working band once they are fabricated. This paper introduces a novel metamaterial beam with tunable bandgaps. This achievement is made possible by employing one electromagnet and three permanent magnets to create an electromagnetic spring. The initial stiffness, provided by the spiral beam, collaborates with the electromagnetic components to establish a local resonant unite cell featuring tunable composite stiffness. Subsequently, an analogy network is formulated for the metamaterial beam based on electromechanical analogy theory. This network not only elucidates the generation mechanism and regulatory principles of bandgaps but also serves as a paradigm for the proactive design of the metamaterial beam with external control sources, particularly under finite period conditions. Finally, theoretical analysis and experimental results collectively demonstrate the flexibility of the proposed metamaterial beam in effectively suppressing low-frequency elastic waves across a wide frequency range.

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