Papers
Release Time: 2025-04-30Hits:
- Date:2025-04-30
- Title of Paper:The experimental study on low frequency sound transmission characteristics of the acoustic black hole
- Journal:Modern Physics Letters B
- Summary:The acoustic black hole has good sound insulation performance in low frequency range.
The transmission and insulation characteristics of acoustic black hole is investigated
by experiments. First, we study the transmission and insulation characteristics of the
acoustic black hole by numerical simulation. Second, we studied the sound transmission characteristic of multi-level acoustic black hole. Finally, the sound transmission and
insulation characteristics of the acoustic black hole are studied by experiments. The influence of the acoustic black hole tip’s diameter on sound insulation coefficient is studied.
The sound transmission characteristics of the first, two and three level acoustic black
holes are also studied by experiments. Our numerical results show that low frequency
acoustic energy can be effectively focused at the tip of the acoustic black hole, and can
be effectively insulated by the acoustic black hole. Our numerical results are verified by
the experimental results. Our study can provide a feasible method for controlling the
low frequency noise. - Co-author:Xiao Liang, Zhuo Zhou and Jiu Hui Wu
- Volume:Vol. 33, No. 36, 2019
- Page Number:1950458 (17 pages)
- Translation or Not:No
- Date of Publication:2019-10-23
