TY - GEN
T1 - A new type of two-dimensional acoustic black hole-based vibration absorber
AU - Wang, Ning
AU - Ji, Hongli
AU - Zhang, Chao
AU - Lu, Yang
AU - Qiu, Jinhao
AU - Cheng, Li
N1 - Funding Information:
This research was supported by the National Natural Science Foundation of China (No. 11532006 & 51775267), the Research Grants Council of Hong Kong Special Administrative Region, China (PolyU 152017/17E), the Natural Science Foundation of Jiangsu Province (BK20181286), the equipment pre-research foundation (No. 61402100103) and A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.
Publisher Copyright:
© Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020. All rights reserved.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020/8/23
Y1 - 2020/8/23
N2 - The traditional Acoustic Black Hole (ABH) structure controls the wave propagation by designing and optimizing the shape of the structure itself, and has the advantages of simple implementation and high control efficiency, which has been exploited for vibration control and noise suppression. However, the tailoring of the structure will lead to a decrease in the rigidity of the structure, which limits the application prospect of the conventional ABH structure in practical engineering. In this paper, an add-on two-dimensional circular ABH based dynamic vibration absorber (2D ABH-DVA) is proposed for structural vibration control by referring to the design of Dynamic Vibration Absorber (DVA) and giving full play to the advantages of ABH. The coupling dynamic model of the primary structure with the add-on ABH structure is established, and the coupling conditions which are beneficial to the vibration control are analysed. A numerical investigation was carried out on the mechanism of the vibration control and to further validate the coupling between the primary structure and the add-on ABH structure. The simulation results show that add-on ABH structure can achieve good coupling with the primary structure without special design, and achieve good broadband vibration control effect.
AB - The traditional Acoustic Black Hole (ABH) structure controls the wave propagation by designing and optimizing the shape of the structure itself, and has the advantages of simple implementation and high control efficiency, which has been exploited for vibration control and noise suppression. However, the tailoring of the structure will lead to a decrease in the rigidity of the structure, which limits the application prospect of the conventional ABH structure in practical engineering. In this paper, an add-on two-dimensional circular ABH based dynamic vibration absorber (2D ABH-DVA) is proposed for structural vibration control by referring to the design of Dynamic Vibration Absorber (DVA) and giving full play to the advantages of ABH. The coupling dynamic model of the primary structure with the add-on ABH structure is established, and the coupling conditions which are beneficial to the vibration control are analysed. A numerical investigation was carried out on the mechanism of the vibration control and to further validate the coupling between the primary structure and the add-on ABH structure. The simulation results show that add-on ABH structure can achieve good coupling with the primary structure without special design, and achieve good broadband vibration control effect.
UR - http://www.scopus.com/inward/record.url?scp=85101376149&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:85101376149
T3 - Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020
SP - 5300
EP - 5310
BT - Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020
A2 - Jeon, Jin Yong
PB - Korean Society of Noise and Vibration Engineering
T2 - 49th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2020
Y2 - 23 August 2020 through 26 August 2020
ER -