Modeling of Perforated Screens or Membrane Using Rigid Frame Porous Models Combined with Thin Membrane Resonance Sound Absorbing Theory

Abstract:

The sound absorption ability of screen or perforated membrane is studied based on rigid frame porous models combined with thin membrane resonance sound absorbing theory in this paper. Results show that the sound absorption of screen or perforated membrane is better considering the role of membrane than using the rigid frame porous models when the mass density of screen or perforated membrane is smaller. The rigid frame porous model is very accuracy to model the sound absorption ability of screen or perforated membrane when the mass density of membrane is greater. The parameter studies present that the sound absorption peaks move toward low frequency region with the increasing of the depth of air-back cavity, mass density and thickness of screens or perforated membrane and moves toward high frequency region with the increasing of the perforation and perforated radius of screens or perforated membrane when other parameters keep invariant.

• Periodical: Applied Mechanics and Materials (Volumes 357-360)
• Pages: 1206-1211
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.357-360.1206
• Online since: August 2013
• Authors: Xiao Ling Gai*, Xian Hui Li, Bin Zhang, Peng Xie, Zhi Hui Ma
• Keywords: Perforated Membrane, Resonance Frequency, Rigid Frame Porous Model, Sound Absorption Screen, Thin Membrane Resonance

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