Active Control of Sound Transmission Utilizing the Mechanism of Anti-resonance Phenomenon
Active Control of Sound Transmission Utilizing the Mechanism of Anti-resonance Phenomenon
复制标题
利用反共振现象机制主动控制声音传播
DOI：
10.1299/kikaic.70.1293
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
N. Tanaka
中科院分区：
文献类型：
--
作者：
A. Sanada;N. Tanaka
本文研究了面板传声功率的主动控制。众所周知，声传输损失与隔声材料的质量有关。因此，用光板来降低低频噪声是很困难的。我们提出了一种新的更简单的方法，采用前馈模态控制来降低低频声传输功率。它利用了声音传播的抗共振现象的机理。首先，我们研究了反共振现象。其次，根据声音传播模型推导出控制律。最后，计算了有控制时的声传输损失，并考虑了控制的影响。
This paper deals with active control of sound transmitted power through panel. It is well known that the sound transmission loss is dependent on mass of sound insulation materials. So, it is difficult to reduce noise at low frequency with light panel. We propose new simpler way with feedforward modal control to reduce sound transmitted power at low frequency. It makes use of the mechanism of anti-resonance phenomenon of sound transmission. First, we investigate the anti-resonance phenomenon. Second, control law is derived from sound transmission model. Finally, sound transmission loss with control is calculated, and that effect is considered.