智能材料结构的振动抑制

Vibration Suppression of Smart Material Structure

目前热门研究的智能材料结构是将材料构件与传感元件、致动元件结合成一个整体．传感元件作为信号传输与神经系统，使复合材料具有视觉和神经系统；致动元件作为局部或整体的致动器完成在役时的自适应功能。形状记忆合金是智能结构最先应用的驱动元件．本文就形状记忆合金作为分散致动器埋人或粘贴在结构上，利用其特殊的力学性能和物理性能，改变结构的自报频率，抑制结构振动的研究作了介绍．

Recently there has been much interest in smart material structure which is an integration of structure material, sensors and actuators. Sensors act as signal transmission and neural network to make the material possess visual sense and neural system while actuators as local or whole execution elements to perform the in service self-adaptive function.Shape Memory Alloy(SMA)is the first actuator used in smart material structure.In this paper, a new method that is utilizing the unique mechanical and physical properties of SMA which is embedded in or attaehed on a structure to change its natural freq uency and supperss its resonant is presented.