摘要
本文对一种新型形状记忆合金阻尼器———锥形形状记忆合金阻尼器的性能进行了数值分析和试验研究。基于形状记忆合金的超弹性双线型本构模型,利用非线性有限元方法分析了锥形形状记忆合金阻尼器的滞回性能,并且用大型通用程序ANSYS进行了验证,得出锥形形状记忆合金阻尼器的滞回模型可简化为分段线性滞回模型。试验包括形状记忆合金丝的本构试验、疲劳试验和阻尼器的性能试验。试验结果与数值分析结果基本吻合,形状记忆合金表现出良好的超弹性。
The hysteretic behavior of a new-typed shape memory alloy (SMA) damper, cone shape memory alloy damper, is studied by numerical analysis and tests. Based on the SMA double-line constitutive relation, the hysteretic behavior of cone SMA damper is analyzed by the numeric nonlinear finite method. And a conclusion is drawn that the cone shape memory alloy damper's hysteretic constitutive relation can be simply piece-wise linearization one. The tests include SMA line constitutive tests, fatigue tests and cone SMA damper performance tests. The results of tests agree almost with the numeric analysis results and the ones by ANSYS programs, which show that shape memory alloy have a good superelastic properties.
出处
《地震工程与工程振动》
CSCD
北大核心
2004年第6期126-130,共5页
Earthquake Engineering and Engineering Dynamics
基金
国家高技术研究发展计划项目("八六三"计划)子课题(2001AA602015)
关键词
锥形形状记忆合金阻尼器
超弹性
滞回特性
数值分析
性能试验
cone shape memory alloy damper
superelastic properties
hysteretic behavior
numerical analysis
performance test
