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