Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
753795 | Applied Acoustics | 2008 | 11 Pages |
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.
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Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
K.T. Chen, S.H. Chang, C.H. Chou, Y.H. Liu,