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- Title
Panels with low-Q-factor resonators with theoretically infinite sound-proofing ability at a single frequency.
- Authors
Lazarev, L.
- Abstract
An infinite panel with two types of resonators regularly installed on it is theoretically considered. Each resonator is an air-filled cavity hermetically closed by a plate, which executes piston vibrations. The plate and air inside the cavity play the roles of mass and elasticity, respectively. Every other resonator is reversed. At a certain ratio between the parameters of the resonators at the tuning frequency of the entire system, the acoustic-pressure force that directly affects the panel can be fully compensated by the action forces of the resonators. In this case, the sound-proofing ability (transmission loss) tends to infinity. The presented calculations show that a complete transmission-loss effect can be achieved even with low- Q resonators.
- Subjects
ACOUSTIC resonators; QUALITY factor; SOUNDPROOFING; SINGLE frequency network; PISTONS
- Publication
Acoustical Physics, 2015, Vol 61, Issue 4, p476
- ISSN
1063-7710
- Publication type
Article
- DOI
10.1134/S1063771015030124