In-parallel resonators to increase the absorption of subwavelength acoustic absorbers in the mid-frequency range
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-47516-7
Abstract: The acoustic effects of in-parallel resonators is compared to the behavior of a classical single degree of freedom resonator for which the resistance and the mass are in series. In-parallel resonators serve to enhance the… read more here.
Keywords: absorption; frequency range; parallel resonators; acoustic absorbers ... See more keywords
An introduction to NASA’s broadband acoustic absorbers that resemble natural reeds
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Aeroacoustics"
DOI: 10.1177/1475472x211033492
Abstract: Thin, lightweight, and durable broadband acoustic absorbers capable of absorbing sounds over a wide frequency range, especially below 1000 Hz, while also surviving harsh operational conditions such as exposure to sprays of liquid and solid debris… read more here.
Keywords: introduction nasa; broadband acoustic; acoustic absorption; geometry ... See more keywords