Pilot study on wideband sound absorber obtained by adopting a serial-parallel coupling manner
Sign Up to like & getrecommendations! Published in 2017 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2017.03.021
Abstract: Abstract Micro-perforated panel (MPP) absorber has been widely used in noise control and is regarded as a promising alternative to the traditional porous materials. However, the absorption bandwidth of single MPP absorbers is always insufficient… read more here.
Keywords: absorption; parallel coupling; serial parallel; coupling manner ... See more keywords
Sound absorbers with a micro-perforated panel backed by an array of parallel-arranged sub-cavities at different depths
Sign Up to like & getrecommendations! Published in 2019 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2019.01.013
Abstract: Abstract This paper presents a type of wide band micro-perforated panel (MPP) absorber with an array of parallel arranged sub-cavities at different depths based on the quadratic residue sequence (QRS). An analytical prediction model is… read more here.
Keywords: micro perforated; mpp absorber; array parallel; mpp ... See more keywords