摘要
形状记忆合金(SMA)在伪弹性阶段具有较好的阻尼性能,利用这一特点,本文提出了一种SMA被动隔震装置.通过对SMA元件的合理布置,使隔震体系获得可观的耗能能力和震后复位的功能.为了验证上述体系的有效性,本文根据SMA的热力学本构关系,建立了热力学非线性方程的求解方法,并且编制了计算机分析程序进行了实例计算.结果表明,上述隔震体系具有较好的工作性能.
Shape memory alloy is provided with preferable damp capacity at pseudo-elasticity state. By applying this property, a passive isolation device based on SMA is introduced. If the SMA elements are disposed correctly, remarkable dissipation capacity and fully re-centering are obtained by isolation system. In this paper, according to the thermo-dynamics constitutive relation of SMA, the extract method of the thermo-dynamics non-linear equation is presented, and a numerical program example is presented to illustrate correctness of system discussed above. The working property of isolation turned out to be excellent.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
2003年第4期317-320,共4页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(59878044
50278077)
陕西省重点自然科学基金资助项目(2000C09)
陕西省教育厅专项科研计划项目(00JK240)
关键词
隔震体系
形状记忆舍金
本构关系
阻尼性能
isolation system
shape memory alloy
constitutive relation
damp capacity
