减振降噪智能结构的研究

Smart Structures for Vibration and Noise Control

智能材料结构是飞机中的一项重要技术，而减振降噪自适应智能结构是其中的一个重要分支。本文针对飞机、直升机和空间结构的一些典型结构的减振降噪方法进行了研究。对以上结构分别制作了实验模型，在其上布置压电传感器和驱动器，借助测控系统平台，通过一定的自适应控制算法对振动进行隔离和抑制，取得良好效果。

Several typical adaptive structures for vibration and noisesuppression which we developed are elaborated. A large thin Wallshell is made to simulate the compartments of airplanes, a truss toimitate the space station and a flexible composite beam to simulate thesolar boards of satellites. To verify the methods and Principles of ac-tive control, vare types of adapive algorithms are applied to thestructures to suppress the vibraion and noise using measurment andcontrol systerns. The results are satisfactory.