Control of the low-frequency vibrations of elastic metamaterial shafts with discretized arc-rubber layers
Release time:2024-08-09
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- Affiliation of Author(s):
- 机电工程学院
- Journal:
- Japanese Journal of Applied Physics
- Key Words:
- 中文关键字：声子晶体，减振，轴，英文关键字：
- Abstract:
- We propose a new kind of elastic metamaterial (EM) shaft with discretized arc-shaped rubber layers, which shows excellent low-frequency vibration properties. The band gaps of the shaft structure were analyzed by employing the finite element method. The proposed EM shaft exhibits much lower band gaps than the corresponding structures with the whole rubber ring. Furthermore, the band gaps can be modulated by tuning the arc angle and the number of the arc-shaped rubbers. Additionally, we observed that the first complete band gap tends to disappear when the arc angle of each arc-shaped rubber section is decreased but the arc number remains fixed because the arc angle more strongly affects the rotational stiffness than the transverse stiffness of the rubber layers. This new type of EM shafts could find potential application as a means to control the lowfrequency vibrations of rotor shafts in mechanical engineering.
- Note:
- 李丽霞
- First Author:
- caianjiang,lilixia
- Indexed by:
- Journal paper
- Volume:
- 卷：
- Issue:
- 期：55
- Page Number:
- 页：067301
- Translation or Not:
- no
- Date of Publication:
- 2016-05-01