Modeling and optimizing an acoustic metamaterial to minimize low-frequency structure-borne sound

Jagodzinski, Daniel John; Miksch, M.; Aumann, Quirin; Müller, Gerhard

doi:10.1080/15397734.2020.1787842

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2024

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Cited by 7 publications

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“…The vibration was controlled by stimulating the designed bandgaps on the structure. Jagodzinski et al 13 presented an optimal model of a structure made of metamaterial material to reduce the acoustic frequency. Their goal was to reduce the noise coming into the structure.…”

Section: Introductionmentioning

confidence: 99%

Free vibration analysis of metamaterial functionally graded plates with quasi-zero stiffness resonators

Hasanlu

Siavashi

Bagheri

2023

Noise & Vibration Worldwide

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This paper investigates metamaterial functionally graded plates with quasi-zero stiffness resonators. This way, the governing equations of free vibrations and the mode shapes are obtained using the assumed mode method. The free vibrations analysis of the metamaterial functionally graded plates is then performed using finite element analysis. The objective of the current paper is to present an FG metamaterial plate structure to attenuate its mode shapes. Various resonators’ arrangements on the FG plate evaluate the best arrangements. This paper shows that the proposed metamaterial attenuates the corresponding shape modes for the first nine natural frequencies.

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Section: Introductionmentioning

confidence: 99%