智能结构及其在振动主动控制中的应用

针对航天挠性结构的振动控制, 介绍了智能结构的提出、概念、诞生原因以及作为智能结构中的传感和驱动元件的各种智能材料的特点, 着重阐述了梁、板和壳结构的振动控制中应用的压电材料的国内外研究状况和采用的控制策略, 并对智能结构在主动振动控制应用研究的问题进行了评述, 如传感器/ 驱动器的优化配置问题及准则, 柔性结构的控制溢出问题及抑制方法。最后针对航天器的结构振动控制, 展望了今后的研究与发展方向。
主题词　智能结构　振动主动控制　传感器　驱动器
Abstract 　This paper reviews the motivation , concept and foundation of intelligent struc2
tures . The characteristics of intelligent materials as sensors and actuators in intelligent struc2
tures are introduced. The emphasis is put on the research and development status of piezoelec2 tric materials and control methods in vibration control of beams , plates and shells . This paper also presents an overview of some respects of the application of intelligent structures in active vibration control , such as the method and criteria of optimal assignment of sensors and actua2 tors , control spill over of flexible structures and its suppression methods . Finally , future re2 search and development directions of vibration control of spacecraft structures are presented. Subject terms 　Intelligent structure 　Active vibration suppression 　Sensor 　Actuator