含压电材料智能结构动态特性的研究

Research of dynamic behaviors of intelligent structures with piezoelectric materials

本文推导了含压电材料智能结构有限元动力方程 ,讨论了智能结构系统的动态特性 ,得到了模态形状和相应的模态电压以及考察了具有分布的压电传感器和执行器的四边简支方板的各阶固有频率随反馈增益的变化规律 ,这些结果将在智能结构控制的优化设计中起到很大的作用。

The dynamic formulations and characteristics of intelligent structures with piezoelectric materials as sensors and actuators are discussed in this paper. The mode shapes and associated voltage distributions of the plate simply supported are obtained. The change of various frequencies with feedback gain's change is analyzed in detail. The results play a great role in the optimal designs and vibration control of intelligent structures.