Tunable and broadband asymmetric sound absorptions with coupling of acoustic bright and dark modes
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115371
Abstract: Abstract We propose a strategy for constructing an asymmetric sound absorber by coupling two mutually tuned dark and bright modes. The subsequent requirement is that the dark mode must be strongly dissipative to consume sound… read more here.
Keywords: asymmetric sound; dark; bright dark; sound ... See more keywords
Rainbow-trapping absorbers: Broadband, perfect and asymmetric sound absorption by subwavelength panels for transmission problems
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-13706-4
Abstract: Perfect, broadband and asymmetric sound absorption is theoretically, numerically and experimentally reported by using subwavelength thickness panels in a transmission problem. The panels are composed of a periodic array of varying crosssection waveguides, each of… read more here.
Keywords: absorption; frequency; asymmetric sound; panels transmission ... See more keywords