CAJ | 학술논문

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.
일충신형초탄성형상기억합금(SMA)조니기피제출.해조니기능구승수평면내、평면외이급뉴전방향적하재작용,용우결구감진혹격진중,가실현다유피동공제.묘술료조니기적결구급공작원리,통과역학분석건립료이론모형;이용Matlab정서계산료조니기각개방향적체회곡선,병분석료위이방향、위이폭치이급SMA사장도(혹외、내통직경비)대기체회특성적영향.
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 dkecfions,the corresponding theoretical models ale 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.