A Notched Bar as a Vibrational Black Hole
- 作者: Mironov M.1
-
隶属关系:
- Andreev Acoustics Institute
- 期: 卷 65, 编号 6 (2019)
- 页面: 634-636
- 栏目: Classical Problems of Linear Acoustics and Wave Theory
- URL: https://journals.rcsi.science/1063-7710/article/view/186995
- DOI: https://doi.org/10.1134/S1063771019060095
- ID: 186995
如何引用文章
详细
A vibrational black hole (VBH) is a slowing structure that decreases wave propagation velocity to zero at a finite distance. In this case, the wave propagation time over this distance becomes infinite. A new structure that approximates the VBH effect for flexural waves is considered. This is a bar/plate with notches the depth of which gradually increases. The flexural stiffness of such a structure gradually decreases with retention of a constant bulk weight. The dependences of parameter variations were found for which the structure acts similarly to a VBH, and the corresponding equation has an exact analytic solution.
关键词
作者简介
M. Mironov
Andreev Acoustics Institute
编辑信件的主要联系方式.
Email: mironov_ma@mail.ru
俄罗斯联邦, Moscow, 117036