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- Title
A Notched Bar as a Vibrational Black Hole.
- Authors
Mironov, M. A.
- Abstract
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.
- Subjects
THEORY of wave motion; BLACK holes
- Publication
Acoustical Physics, 2019, Vol 65, Issue 6, p634
- ISSN
1063-7710
- Publication type
Article
- DOI
10.1134/S1063771019060095