振动抑制智能结构中智能材料配置和反馈增益的同时优化  

Simultaneous Optimization for the Placement of Smart Material and Feedback Gains for Smart Structures of Vibration Suppression

作　　者：李勇[1] 

机构地区：[1]北京控制工程研究所,北京100080

出　　处：《航天控制》2001年第1期6-11,共6页Aerospace Control

基　　金：国家自然科学基金资助项目 !(批准号 :6 96 840 0 4;6 0 0 34 0 10 )

摘　　要：针对空间挠性结构的振动抑制问题 ,提出一种对智能材料执行器 /敏感器配置 (包括位置和尺寸 )和反馈增益同时优化的新设计方法。在系统动力学模型和优化指标中 ,考虑了智能材料对被控结构的质量和刚度特性的影响 。This paper formulates a new optimal design methodology for the placement of piezoelectric actuators and the feedback gains in vibration suppression of flexible structures. For the simultaneously optimal design of the location and sizing of collocated piezoelectric actuator/sensor pairs and the feedback gains, the effect of changes in the mass and the stiffness of the structure by addition of actuator/sensor pairs is considered and combined with control performance index to obtain a composite objective function, and the procedure developed in this paper leads to solutions that are independent of initial conditions of the flexible structure.

关 键 词：挠性结构 振动控制 最优设计 智能材料 反馈增益 

分 类 号：TB535[理学—物理]