航空学报 > 2002, Vol. 23 Issue (5): 427-430

形状记忆合金智能结构的主动振动抑制研究

王军, 郦正能, 叶宁   

  1. 北京航空航天大学飞机设计研究所 北京 100083
  • 收稿日期:2002-01-17 修回日期:2002-07-09 出版日期:2002-10-25 发布日期:2002-10-25

RESEARCH ON ACTIVE VIBRATION SUPPRESSION OF SMART STRUCTURE EMBEDDED WITH SHAPE MEMORY ALLOY

WANG Jun, LI Zheng-neng, YE Ning   

  1. Institute of Aircraft Design., Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2002-01-17 Revised:2002-07-09 Online:2002-10-25 Published:2002-10-25

摘要: 从形状记忆合金 (SMA)智能结构用于主动振动抑制的构想出发,建立了含SMA非线性本构关系的智能复合材料结构的有限元模型,并结合试验验证了主动振动抑制的效果。试验和计算结果都表明SMA是振动抑制的有效驱动器,通过主动应变能调整 (ASET)的方法对结构固有频率的影响非常显著,这种影响主要体现在基频 (一阶固有频率 )的改变上,对高阶固有频率的影响逐渐减小。

关键词: 智能结构, 主动振动抑制, 固有频率, 主动应变能调整

Abstract: For the purpose of vibration suppression of smart structures embedded with shape memory alloy (SMA), a finite element model with nonlinear constitutive relations is established, together with some experiments to validate the effect of the active vibration control. Experimental and computational results indicate that SMA can be an effective driver for vibration control and Active Strain Energy Tuning method can obviously affect the natural frequency of the structure, which can change the fundamental frequency more than the others.

Key words: smart structure, active vibration suppression, natural frequency, active strain energy tuning