Asymmetric acoustic transmission in graded beam
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Asymmetric acoustic transmission in graded beam
- 发表刊物：
- Physica B: Physics of Condensed Matter
- 摘要：
- Wedemonstratethedynamiceffectivematerialparametersandvibrationperformanceofagradedbeam. The structure of the beam was composed of several unit cells with different fill factors. The dispersion relations and energy band structures of each unit cell were calculated using the finite elementmethod (FEM). The dynamic effective material parameters in each unit cell of the graded beam were determined by the dispersion relations and energy band structures. Longitudinal wave propagation was investigated using an umerical method and FEM. The results show that the graded beam allows asymmetric acoustic transmission over a wide range of frequencies.
- 合写作者：
- Li Jing, Jiu Hui Wu, Dong Guan, Kuan Lu, Nansha Gao, and Songhua Cao
- 卷号：
- Vol.502, 2016
- 页面范围：
- 140-145,
- 是否译文：
- 否
- 发表时间：
- 2016-08-30