多维形状记忆合金阻尼器的设计及性能研究

英文篇名：Design and Performance Study of an Innovative Multidimensional Shape Memory Alloy Damper
中文刊名：河北工业大学学报
英文刊名：Journal of Hebei University of Technology
作者：宋娃丽 ; 戴辰 ; 任文杰 ; 张澎丽
英文作者：SONG Wa-li 1 ; DAI Chen 1 ; REN Wen-jie 1 ; ZHANG Peng-li 2 ( 1. School of Civil Engineering ; Hebei University of Technology ; Tianjin 300401 ; China ; 2. Tianjin Tianjia Municipal Highway Engineering Company LTD ; Tianjin 300163 ; China )
中文关键词：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
英文关键词：shape memory alloy ; multidimensional damper ; configuration ; working mechanism ; theoretical models ; numerical simulation
出版日期：2010-02-15
机构：河北工业大学土木工程学院;天津天佳市政公路工程有限公司;
年：2010
期：01
出版单位：河北工业大学学报

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.

引文

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