Cochlear bionic acoustic metamaterials
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Cochlear bionic acoustic metamaterials
- 发表刊物：
- Applied Physics Letters
- 摘要：
- A design of bionic acoustic metamaterial and acoustic functional devices was proposed by employing the mammalian cochlear as a prototype. First, combined with the experimental data in previous literatures, it is pointed out that the cochlear hair cells and stereocilia cluster are a kind of natural biological acoustic metamaterials with the negative stiffness characteristics. Then, to design the acoustic functional devices conveniently in engineering application, a simplified parametric helical structure was proposed to replace actual irregular cochlea for bionic design, and based on the computational results of such a bionic parametric helical structure, it is suggested that the overall cochlear is a local resonant system with the negative dynamic effective mass characteristics. There are many potential applications in the bandboard energy recovery device, cochlear implant, and acoustic black hole.
- 合写作者：
- Fuyin Ma, Jiu Hui Wu, Meng Huang, Gang Fu, and Changan Bai
- 卷号：
- 105(21)
- 页面范围：
- 213702
- 是否译文：
- 否
- 发表时间：
- 2014-11-25