Title: Sound insulation of composite cylindrical shells: a comparison between a laminated and a sandwich cylinder
Authors: Yuan, Chongxin
Roozen, Bert
Bergsma, Otto
Beukers, Adriaan
Issue Date: 13-May-2012
Host Document: Acoustics 2012, Hong Kong pages:1-1
Conference: Acoustics 2012 location:Hong Kong date:13 May to 18 May, 2012
Abstract: The fuselages of aircraft are modeled as a cylinder in this paper, and the sound insulations of a sandwich cylinder and a laminated cylinder are studied both experimentally and numerically. The cylinders are excited by an acoustic pressure and a mechanical force respectively. Results show that under acoustic excitation, the sandwich cylinder and the laminated one have a similar sound insulation below 3000 Hz, but the sandwich cylinder has a much larger sound insulation at higher frequencies. Under mechanical excitation, the sandwich cylinder is also more beneficial, showing a larger sound insulation above 800 Hz.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Production Engineering, Machine Design and Automation (PMA) Section

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