摘要
利用有限元法分析了谐激励下含形状记忆合金(SMA)支撑的框架结构的位移响应和频谱特性,并从SMA的初始预应变、激振力力幅和操作温度3个方面讨论了SMA的伪弹阻尼特性对结构位移响应的影响.结果表明,伪弹性SMA能够比较有效地抑制结构振动.
The displacement response and the frequency-amplitude characteristics of a frame structure with pre-strained shape memory alloys （SMA） tendons were analyzed by finite element method. The SMA braced structure is subjected to a harmonic force excitation. The effects of the pseudoelastic damping of SMA on the displacement response of the braced structure were discussed in three aspects including initial pre-strains of SMA, forcing magnitudes and operating temperatures. It is found that the pseudoelastic SMA can suppress the vibration of structures effectively.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2006年第8期1376-1380,共5页
Journal of Shanghai Jiaotong University
基金
加拿大自然科学与工程研究委员会基金(A-6507)
青岛科技大学博士科研启动金资助项目
关键词
形状记忆合金
伪弹性
框架结构
动力特性
shape memory alloys（SMA）
pseudoelasticity
frame structures
dynamic characteristics
