Ultra-low-frequency multi-broadband and vibration suppression mechanism of innovative star-shaped hybrid metamaterials

Hong-yun Yang; Shu-liang Cheng; Xiao-feng Li; Qun Yan; Bin Wang; Ya-jun Xin; Yong-tao Sun; Qian Ding; Hao Yan; Ya-jie Li; Qing-xin Zhao

Materials & Design (Jun 2023)

Ultra-low-frequency multi-broadband and vibration suppression mechanism of innovative star-shaped hybrid metamaterials

Hong-yun Yang,
Shu-liang Cheng,
Xiao-feng Li,
Qun Yan,
Bin Wang,
Ya-jun Xin,
Yong-tao Sun,
Qian Ding,
Hao Yan,
Ya-jie Li,
Qing-xin Zhao

Affiliations

Hong-yun Yang: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China; Hebei Key Laboratory of Mechanical Reliability for Heavy Equipment and Large Structure, Yanshan University, Qinhuangdao, China; Hebei Province Engineering Research Center for Harmless Synergistic Treatment and Recycling of Municipal Solid Waste, Yanshan University, Qinhuangdao, China
Shu-liang Cheng: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China; Hebei Key Laboratory of Mechanical Reliability for Heavy Equipment and Large Structure, Yanshan University, Qinhuangdao, China
Xiao-feng Li: Hebei Key Laboratory of Mechanical Reliability for Heavy Equipment and Large Structure, Yanshan University, Qinhuangdao, China
Qun Yan: Key Laboratory of Aeroacoustics and Dynamics, Aircraft Strength Research Institute, Xi’an, China
Bin Wang: Tianjin Key Laboratory of Soft Soils and Engineering Environment, Tianjin Chengjian University, Tianjin, China
Ya-jun Xin: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China; Hebei Province Engineering Research Center for Harmless Synergistic Treatment and Recycling of Municipal Solid Waste, Yanshan University, Qinhuangdao, China; Corresponding authors at: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China (Ya-jun Xin).
Yong-tao Sun: Department of Mechanics and Tianjin Key Laboratory of Nonlinear Dynamics and Control, Tianjin University, Tianjin, China; Corresponding authors at: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China (Ya-jun Xin).
Qian Ding: Department of Mechanics and Tianjin Key Laboratory of Nonlinear Dynamics and Control, Tianjin University, Tianjin, China
Hao Yan: Key Laboratory of Aeroacoustics and Dynamics, Aircraft Strength Research Institute, Xi’an, China
Ya-jie Li: School of Mathematics and Physics, Henan University of Urban Construction, Pingdingshan, China
Qing-xin Zhao: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China; Hebei Province Engineering Research Center for Harmless Synergistic Treatment and Recycling of Municipal Solid Waste, Yanshan University, Qinhuangdao, China

Journal volume & issue: Vol. 230
p. 111966

Abstract

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Metamaterials with low-frequency band gap have always been the focus of research. For this reason, many researchers have proposed many structural design schemes. In this paper, an innovative star-shaped hybrid metamaterial structure is proposed. Based on Bloch's theorem and finite element method, a dynamic model of the proposed structure is established, the band gap characteristics of the proposed structure are analyzed, and the generation mechanism of band gap is discussed with the mode shape of specific frequency. Then, the propagation characteristics of elastic wave in the proposed structure are analyzed by using the dispersion surface and group velocity images, and the attenuation region of vibration transmission in the finite periodic structure is consistent with the frequency range of band gap. Finally, the relationship between band gap and structure parameters is explored. The results show that the proposed structure has good band gap characteristics in the frequency range of 1000 Hz, the lowest frequency of band gap reaches 60.207 Hz, and the total band gap width accounts for 54.463%. This research opens up an ideological route for the design of low frequency metamaterial structures.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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