期刊
INTERNATIONAL JOURNAL OF FATIGUE
卷 172, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2023.107605
关键词
Acoustics black hole; Vibration fatigue; Random vibration; Modal analysis
This study proposes a frequency method based on Gaussian expansion for fatigue analysis of acoustic black hole (ABH) structures. Fatigue damage is directly estimated in the frequency domain through the properties of the modal model of ABH structures. Numerical results show that the proposed method can accurately deal with both 1D and 2D ABH structures.
The acoustic black hole (ABH) effect has shown great application potential in vibration reduction, energy har-vesting, etc. However, it may face the problem of structural strength due to the small thickness in local area. In this study, a frequency method based on Gaussian expansion has been proposed for fatigue analysis of ABH structure. Fatigue damage is directly estimated in the frequency domain through the properties of the modal model of ABH structures. Numerical results show that the proposed method can well deal with both 1D and 2D ABH structures with a good accuracy.
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