Article ID Journal Published Year Pages File Type
753795 Applied Acoustics 2008 11 Pages PDF
Abstract
Results of dynamical analysis on three different plates obviously reveal low odd-odd modes such as (1, 3) and (3, 3) mode must respond to the most acoustic radiation from plates. Laboratory demonstration claims that much more reduction of acoustic radiation from plates within greater frequency range can be reached when using an optical-error path to replace acoustic-error path. The corresponding experimental results obviously show that the greater control effectiveness on (3, 3) mode for smaller plate, single frequency, the greater effectiveness by 26 dB of acoustic radiation reduction for single point control than that for multi points control. Regarding to the double frequencies, the acoustic attenuation by 14.6 dB for compose of (3, 3) and (3, 4) in 60 cm plate are obtained.
Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
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