Back to Search
Start Over
Study on bandgap characteristics and vibration attenuation mechanism of double-oscillator power-exponent prism phononic crystal plate.
- Source :
-
Journal of Applied Physics . 9/14/2023, Vol. 134 Issue 10, p1-13. 13p. - Publication Year :
- 2023
-
Abstract
- This study introduces a local resonance mechanism to a periodic acoustic black hole (ABH) structure to achieve vibration control of plate structures and proposes a double-oscillator power-exponent prism phononic crystal. Results show that the periodic power-exponent prism can generate a high-frequency bandgap, the interior oscillator can generate a low-frequency bandgap, and the top oscillator can separate the frequency dispersion curve at around 700 Hz to form a bandgap with a width of 189 Hz. The double-oscillator power-exponent prism phononic crystal, composed of two types of oscillators and a power-exponent prism, can simultaneously have high-, middle-, and low-frequency bandgaps. Simulations and experiments show that it has a good attenuation effect on flexural vibration in the bandgap frequency band. The present results can provide a useful reference for bandgap design based on the combination of multiple mechanisms. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHONONIC crystals
*PRISMS
*SMART structures
*FREQUENCIES of oscillating systems
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 134
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 171961778
- Full Text :
- https://doi.org/10.1063/5.0160572