A Notched Bar as a Vibrational Black Hole
- Autores: Mironov M.A.1
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Afiliações:
- Andreev Acoustics Institute
- Edição: Volume 65, Nº 6 (2019)
- Páginas: 634-636
- Seção: 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
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Resumo
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.
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Sobre autores
M. Mironov
Andreev Acoustics Institute
Autor responsável pela correspondência
Email: mironov_ma@mail.ru
Rússia, Moscow, 117036
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