Cochlear Outer Hair Cell Bio-inspired Metamaterial with Negative Effective Parameters
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Cochlear Outer Hair Cell Bio-inspired Metamaterial with Negative Effective Parameters
- 发表刊物：
- Applied Physics A
- 摘要：
- Inspired by periodical outer hair cells (OHCs)
and stereocilia clusters of mammalian cochlear, a type of bio-inspired metamaterial with negative effective parameters
based on the OHC structure is proposed. With the structural parameters modified and some common engineering materials adopted, the bio-inspired structure design
with length scales of millimeter and lightweight is presented, and then, a bending wave bandgap in a favorable low-frequency with width of 55 Hz during the interval
21–76 or 116 Hz during the interval 57–173 Hz is obtained, i.e., the excellent low-frequency acoustic performance turns up. Compared with the local resonance unit
in previous literatures, both the size and weight are greatly reduced in our bio-inspired structure. In addition, the lower edge of low-frequency bandgap is reduced by an order of
magnitude, almost to the lower limit frequency of the hearing threshold as well, which achieves an important
breakthrough on the aspect of low-frequency and great significance on the noise and vibration reduction in lowfrequency
range.
- 合写作者：
- Fuyin Ma, Jiu Hui Wu, Meng Huang, Siwen Zhang
- 卷号：
- Vol.122, No. 5
- 页面范围：
- 525(1-8), 2016
- 是否译文：
- 否
- 发表时间：
- 2016-01-26