Broadband labyrinthine acoustic insulator
WebJun 29, 2024 · A new sound insulation metamaterial (SIM) is designed by combining a Helmholtz resonator and a fractal structure for sound insulation in the frequency range … WebJul 1, 2024 · We envision our design to further improve the performance of acoustic absorbers and find applications in practical situations in need of elimination of …
Broadband labyrinthine acoustic insulator
Did you know?
WebTo understand completely the mechanism of the broadband acoustic insulation, Figure 2A shows the sound transmission loss (STL) curves for a single resonator, two coupled resonators with slightly different lengths, … WebApr 3, 2024 · In this study, a design method of broadband low-frequency muffler based on NN method and Helmholtz resonators with helical …
WebXin Zhang's 6 research works with 16 citations and 321 reads, including: Broadband Labyrinthine Acoustic Insulator. Xin Zhang's research while affiliated with Boston University and other places. WebWe construct new fractal acoustic metamaterials by coiling up space, which can allow subwavelength-scale and broadband sound insulation to be achieved. Using the finite element method and the S-parameter retrieval method, the band structures, the effective parameters, and the transmission losses of these acoustic metamaterials with different …
WebAcoustic insulation in ventilated structures is an important problem in acoustic engineering with many potential practical applications, such as the noise control for ventilating ducts of buildings, vehicles, or air … WebJun 8, 2024 · Due to the tunability of the tunnel, the labyrinthine metasurface possesses a strong ability to control the performance and the bandwidth of sound insulation. Through …
WebDec 22, 2024 · This metamaterial can accomplish strong sound insulation performance. The transmission loss is larger than 30 dB within a wide frequency range (625–1695 Hz) …
WebDec 29, 2016 · When the relative absorption bandwidth is as high as 51%, the requirement of deep-subwavelength thickness ( 0.07λ) can still be satisfied. We emphasize that the perfect absorption with large tunability in relative bandwidth (from 9% to >180%) was not attainable previously and may find applications ranging from noise reduction to sound … mars pump heating and coolingWebJun 12, 2024 · Labyrinthine acoustic metamaterials with space-coiling channels for low-frequency sound control A. Krushynska, F. Bosia, N. Pugno Physics 2024 We numerically analyze the performance of labyrinthine acoustic metamaterials with internal channels folded along a Wunderlich space-filling curve to control low-frequency sound in air. In … mars radiation beltWebNov 12, 2024 · The influences of different structural parameters on their acoustic properties are also studied. These results show labyrinthine structures have multiple bandgaps in the range of 0 Hz–1000 Hz,... mars railroad meetingWebJan 26, 2010 · Broadband Labyrinthine Acoustic Insulator. Article. Dec 2024; Ao Chen ... The silencing effect of the labyrinthine acoustic insulator is theoretically and experimentally verified in the frequency ... mars radioactivityWebApr 3, 2024 · We present a subwavelength labyrinthine acoustic metastructure (≤ 3 cm) exhibiting a superior sound absorption with a high bandwidth (more than one octave in … mars railroad conferenceWebThe acoustic metamaterials have demonstrated excellent acoustical characteristics that paved a new pathway for researchers to develop effective solutions for a wide variety of multifunctional applications, such as low-frequency sound attenuation, sound wave manipulation, energy harvesting, acoustic focusing, acoustic cloaking, biomedical … mars raspberry smash barWebJun 8, 2024 · Due to the tunability of the tunnel, the labyrinthine metasurface possesses a strong ability to control the performance and the bandwidth of sound insulation. Through a cascaded array of the metasurfaces, the muffler can exhibit the properties of large transmission loss (TL) with broad bandwidth. mars rainbow