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A platform for research: civil engineering, architecture and urbanism
Measurement the Noise Reduction of Doubly Curved Composite Sandwich Structures
Traditional single-layer panels are typically made of a thin metal or plastic and are often unsuitable for an interior finish because thin limp panels do not have enough resistance to combined acoustic-thermal loading. For medium and low frequencies, panels usually require a relatively large absorber thickness and weight. The sound absorber presented is a composite sandwich panel with an air gap between a comparatively stiff thick panel and a flexible thin plate. Under thermal loading, the flexible thin plate is buckled. When suitably adjusted to a particular curvature, an increase in stiffness is obtained which can increase the sound insulation by up to 27 dB between 250 Hz and 500 Hz.
Measurement the Noise Reduction of Doubly Curved Composite Sandwich Structures
Traditional single-layer panels are typically made of a thin metal or plastic and are often unsuitable for an interior finish because thin limp panels do not have enough resistance to combined acoustic-thermal loading. For medium and low frequencies, panels usually require a relatively large absorber thickness and weight. The sound absorber presented is a composite sandwich panel with an air gap between a comparatively stiff thick panel and a flexible thin plate. Under thermal loading, the flexible thin plate is buckled. When suitably adjusted to a particular curvature, an increase in stiffness is obtained which can increase the sound insulation by up to 27 dB between 250 Hz and 500 Hz.
Measurement the Noise Reduction of Doubly Curved Composite Sandwich Structures
Tang, Wing-Cheong (author)
Building Acoustics ; 15 ; 231-247
2008-09-01
17 pages
Article (Journal)
Electronic Resource
English
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