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A platform for research: civil engineering, architecture and urbanism
BROADBAND SOUND ABSORBER BASED ON INHOMOGENEOUS-DISTRIBUTED HELMHOLTZ RESONATORS WITH EXTENDED NECKS
Sound absorbers using distributed absorption units each having an extended neck are provided. The absorption units can be, for example, Helmholtz resonators with extended neck (HRENs). The absorption units can be distributed in a lateral fashion, for example, in a checkerboard fashion with laterally, non-diagonally adjacent units having a different extended neck length and/or diameter. Each absorption unit can be, for example, a cylinder-structure core sandwiched between a back wall and a perforated plate.
BROADBAND SOUND ABSORBER BASED ON INHOMOGENEOUS-DISTRIBUTED HELMHOLTZ RESONATORS WITH EXTENDED NECKS
Sound absorbers using distributed absorption units each having an extended neck are provided. The absorption units can be, for example, Helmholtz resonators with extended neck (HRENs). The absorption units can be distributed in a lateral fashion, for example, in a checkerboard fashion with laterally, non-diagonally adjacent units having a different extended neck length and/or diameter. Each absorption unit can be, for example, a cylinder-structure core sandwiched between a back wall and a perforated plate.
BROADBAND SOUND ABSORBER BASED ON INHOMOGENEOUS-DISTRIBUTED HELMHOLTZ RESONATORS WITH EXTENDED NECKS
GUO JINGWEN (author) / ZHANG XIN (author) / FANG YI (author)
2021-03-11
Patent
Electronic Resource
English
Broadband sound absorber based on inhomogeneous-distributed Helmholtz resonators with extended necks
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