Aoki Yohko, Gardonio Paolo, Elliott Stephen J
Institute of Sound and Vibration, Highfield, SO17 1BJ, Southampton, United Kingdom.
J Acoust Soc Am. 2008 Mar;123(3):1421-6. doi: 10.1121/1.2835663.
This paper presents experimental results on the implementation of decentralized velocity feedback control on a new smart panel in order to produce active damping. The panel is equipped with 16 triangularly shaped piezoceramic patch actuators along its border and accelerometer sensors located at the top vertex of the triangular actuators. The primary objective of this paper is to demonstrate the vibration and sound radiation control using the new smart panel. Narrow frequency band experimental results highlight that the 16 control units can produce reductions up to 15 dB at resonance frequencies between 100 and 700 Hz in terms of both structural vibration and sound power radiation.
本文展示了在一个新型智能面板上实施分散速度反馈控制以产生主动阻尼的实验结果。该面板沿其边界配备了16个三角形压电陶瓷贴片致动器，加速度计传感器位于三角形致动器的顶部顶点。本文的主要目的是展示使用新型智能面板进行振动和声辐射控制。窄频带实验结果表明，16个控制单元在100至700Hz的共振频率下，在结构振动和声功率辐射方面都能产生高达15dB的降幅。
