结构振动主动控制技术的现状与发展趋向

本文对结构振动主动控制技术的现状进行了评述,介绍了受控结构的模型降阶、溢出的产生和抑制方法,阐述了目前所采用的各种控制器的设计方法及在设计过程中应考虑的几个问题(例如:模型误差及溢出、传感器与作动器的类型和位置的优化选择、参数不确定性、时滞等)以及振动主动控制系统实现时所采用的各类作动机构,指出了振动主动控制技术的发展方向。

Recent States and Trends of Active Control Technology for Structural Vibration

The paper summarizes the recent states of active control technology for structural vibration, and introduces the model reduction of controlled structures, spillover and the method of spillover alleviation. The present design methods of controllers and the problems considered in the process of controller design (e.g. model errors and spillover, optimum choices of the types and locations of sensors and actuators, parameter uncertainty and time-delay etc.) are expounded. The actuators used in active control systems for structural vibration are also discussed. At last the trends of active control technology for structural vibration are pointed out in the paper.