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Semi analytical coupling modeling and vibration characteristics of ABH plate with constrained damping layer
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Jun-jun LI1, Jian-hui LI1, Ling ZHENG1, Jie DENG2
Journal of Vibration Engineering | 2024, 37(5) : 847 - 855
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Journal of Vibration Engineering | 2024, 37(5): 847-855
Semi analytical coupling modeling and vibration characteristics of ABH plate with constrained damping layer
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Jun-jun LI1, Jian-hui LI1, Ling ZHENG1, Jie DENG2
Affiliations
  • 1College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China
  • 2School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
Published: 2024-05-28 doi: 10.16385/j.cnki.issn.1004-4523.2024.05.013
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In recent years，acoustic black hole （ABH） has shown an extremely broad application prospect in the fields of structural vibration and noise suppression，acoustic wave control，energy recovery，etc，due to its excellent performance. However，the truncation of ABH edge will lead to the existence of non-zero reflection coefficient，thus weakening the acoustic black hole effect. In this paper，the constrained layer damping is introduced into ABH plates. Under the framework of Rayleigh Ritz method，Gaussian function is selected as the basis function，and the distribution of basis function is determined according to the shape of ABH plate to avoid the singularity of mass matrix and stiffness matrix. A semi analytical model of ABH plate with constrained layer damping is established. By comparing with the results of finite element analysis，the correctness of the semi analytical modeling method is verified. The influence of structural parameters of constrained layer damping on the bending vibration characteristics of ABH plate is studied，and the damping mechanism and energy dissipation of constrained layer damping are revealed. The experiment further verifies the damping effect of ABH plate with constrained layer damping. The research provides a design reference for the application of constrained layer damping in ABH structures.

vibration control  /  acoustical black hole （ABH）  /  constrained damping layer  /  Gaussian expansion method  /  semi-analytical model
Jun-jun LI, Jian-hui LI, Ling ZHENG, Jie DENG. Semi analytical coupling modeling and vibration characteristics of ABH plate with constrained damping layer[J]. Journal of Vibration Engineering, 2024 , 37 (5) : 847 -855 . DOI: 10.16385/j.cnki.issn.1004-4523.2024.05.013
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Year 2024 volume 37 Issue 5
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.2024.05.013
  • Receive Date：2022-09-20
  • Online Date：2026-02-09
  • Published：2024-05-28
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  • Received：2022-09-20
  • Revised：2022-11-27
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Affiliations
    1College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China
    2School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
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表12种不同金属材料的力学参数
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Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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