智能結(jié)構(gòu)及其在振動主動控制中的應(yīng)用

針對航天撓性結(jié)構(gòu)的振動控制, 介紹了智能結(jié)構(gòu)的提出、概念、誕生原因以及作為智能結(jié)構(gòu)中的傳感和驅(qū)動元件的各種智能材料的特點(diǎn), 著重闡述了梁、板和殼結(jié)構(gòu)的振動控制中應(yīng)用的壓電材料的國內(nèi)外研究狀況和采用的控制策略, 并對智能結(jié)構(gòu)在主動振動控制應(yīng)用研究的問題進(jìn)行了評述, 如傳感器/ 驅(qū)動器的優(yōu)化配置問題及準(zhǔn)則, 柔性結(jié)構(gòu)的控制溢出問題及抑制方法。最后針對航天器的結(jié)構(gòu)振動控制, 展望了今后的研究與發(fā)展方向。
主題詞　智能結(jié)構(gòu)　振動主動控制　傳感器　驅(qū)動器
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