力学与实践 ›› 2004, Vol. 26 ›› Issue (6): 0-0.DOI: 10.6052/1000-0992-2003-341

• 应用研究 •    

SMA纤维复合材料梁振动半主动控制

邵兵 任勇生   

  1. 太原理工大学(西区)机械电子工程研究所 030024 太原理工大学机械电子工程研究所 030024
  • 收稿日期:2003-08-08 修回日期:2003-10-21 出版日期:2004-12-10 发布日期:2004-12-10

THE SEMI-ACTIVE CONTROL OF SHAPE MEMORY ALLOY COMPOSITE BEAM

  • Received:2003-08-08 Revised:2003-10-21 Online:2004-12-10 Published:2004-12-10

摘要: 分析了一类形状记忆合金(SMA)纤维混杂层合梁用于振动控制的动力学模型和作 用机理. 采用多胞模型、形状记忆合金一维本构关系分析方法,同时考虑横向剪切的影响, 建立了层合梁的数学模型. 半主动控制是通过改变受控结构的参数来减小结构振动的响应. 根据开关控制原理确定可变刚度系统的控制律,进行SMA纤维混杂层合梁的半主动控制的数 值仿真. 结果表明,将半主动控制应用于梁的振动控制是一种有效的方法.

关键词: 形状记忆合金, SMA纤维复合材料,, 振动控制, 半主动控制, 混杂层合梁

Abstract: The dynamic model of a hybrid composite beam vibration control using shape memory alloy(SMA) is analyzed. This model is developed based on the one-dimensional SMA constitutive equation and multicell model, and considers the influence of transverse shear deformation of the hybrid composite beam. Semi-active control can reduce the response of the construction by changing its parameter. According to the switch control theory, the control law can be determined and then the semi-active control simulation is carried out. The numerical results show that the semi-active control is an effective way for SMA fiber composites.

Key words: shape memory alloy(SMA), SMA fiber composite,, vibration