摘要
一种新型超弹性形状记忆合金(SMA)阻尼器被提出.该阻尼器能够承受平面内、平面外以及扭转方向的荷载作用,用于结构减震或隔震中,可实现多维被动控制.描述了阻尼器的结构及工作原理,通过力学分析建立了理论模型;利用Matlab程序计算了阻尼器各个方向的滞回曲线,并分析了位移方向、位移幅值以及SMA丝长度(或外、内筒直径比)对其滞回特性的影响.
An innovative, multidimensional shape memory alloy （SMA） damper is put forward. The damper can be subjected to in-plane loading, out-plane loading and torsion. As a seismic isolation or energy dissipation device, the damping apparatus can mitigate the vibration of a structure subjected to earthquakes from different directions. The damper＇s configuration and working mechanism are described. By analyzing the damper＇s mechanical features in different directions, the corresponding theoretical models are developed. Numerical simulations in Matlab codes are conducted to attain the damper＇s hysteretic loops in different directions. The effects of parameters, such as the direction of deflection, the maximum deflection and the dimensions of the cylinders, on the damper＇s mechanical behaviors are analyzed.
出处
《河北工业大学学报》
CAS
北大核心
2010年第1期103-107,共5页
Journal of Hebei University of Technology
关键词
形状记忆合金
多维阻尼器
结构构造
工作原理
理论模型
数值模拟
shape memory alloy
multidimensional damper
configuration
working mechanism
theoretical models
numerical simulation
