Methods and reliability of structural health monitoring utilizing the large strain and electric property of shape memory alloy ' s superelasticity were studied by low velocity impact test 通过低速冲击实验，研究利用sma超弹性特性所具有的大应变及电特性实现结构健康监测的方法和可行性。
Main research works can be summed up in four aspects . firstly , the sensing and actuating characteristics of shape memory alloys were systematically studied and measured after analyzing shape memory effect and superelasticity 全文的研究工作主要分为四个方面：首先，在对sma形状记忆效应和超弹性行为分析的基础上，系统研究和测试了sma的传感和驱动性能。
Finally , detailed algorithms are also presented and the exploitation of simd instructions allows us to achieve nearly 100 % fpu utilization . results demonstrate that the proposed algorithm supports tradeoffs between simulation time and realistic results 实验证明，本文的布料模拟系统可以进行高效的实时运动仿真，减少超弹性等失真现象，在效率和真实感两者间取得较好的折中效果。
The multichannel signal conditioners and amplifiers were developed to monitor superelastic wires embedded in structure , and 16 channels parallel data acquisition and processing system was set up . so , the experimental system was established and successfully used as structural health monit 研制完成用于超弹性传感元件监测的多路微弱信号调理与放大仪，构建了16路并行数据采集与分析摘要博士论文仪，从而完成了结构健康监测的实验系统，成功用于结构健康监测。
This thesis presents a designing and study of several new types of sma - rubber bearings and their application for seismic isolation in bridge structures . first , the research and development of sma in the field of seismic base isolation , energy dissipation and vibration control of bridge structures was reviewed and analyzed 本文主要利用形状记忆合金超弹性滞回耗能,设计和研究开发了几种针对桥梁结构的新型形状记忆合金橡胶支座,试验研究了其力学性能,并研究探讨了其在桥梁结构中的隔震理论和隔震性能。
Experimental results show that niti memory wire for pure martensite or pure austenite and superelastic wire has strain - sensing nature , and memory - wire and superelastic wire possess stress - actuating property during restrained recovery , and that niti superelastic wire can be used as strain - sensing element to monitor structural health condition 实验结果表明，纯马氏体态、纯奥氏体态niti记忆丝及超弹丝具有应变传感性能，约束回复中的sma与自然回复过程中的超弹丝具有力驱动性能，一定状态的sma可实现自传感驱动； niti超弹性丝可用作结构健康监测的应变传感元件。
Second , based on the basic theory , the constitutive models describing superelasticity behavior of shape memory alloys were summarized here and the factors influenced superelasticity were analyzed . the advantages and disadvantages of every kind of constitutive model were also summarized . third , the sma rubber bearings ’ optimized designing are proposed and designed utilizing superelasticity of sma materials , the corresponding theoretical models are developed and design methods are given 第一,总结了国内外关于形状记忆合金在结构减震、隔震以及振动控制领域的研究进展和应用情况,并对各种形状记忆合金控制装置进行了对比分析,展望了形状记忆合金在结构振动控制中的发展方向;第二,从基本理论出发,综述了目前国内外描述形状记忆合金超弹性行为的本构模型,并分析总结了影响超弹性的因素,以及各种本构模型在描述形状记忆合金超弹性方面的优缺点。
The paper studied controlling rotor vibration with the super - elasticity of sma and sfd , set up the new equation of sys tern vibration according to the stress - strain curve of sma in super - elasticity state , used the nonlinear theory and the dynamic stability theory to study the vibration of rotor controlled by sma , discussed the stability condition of the system , obtained the relationship of system parameters when bifurcation was appeared , supposed a method that improves the stability of rotor system and restrains vibration amplitude though changing parameters , and finally validated the effect of restraining vibration of the improved system through emulation 摘要研究利用形状记忆合金的超弹性和挤压油膜阻尼器控制转子振动，利用形状记忆合金在超弹性状态下的应力应变曲线，建立了新的系统振动方程，运用非线性理论和运动稳定性理论研究转子在形状记忆合金控制下的振动状态，讨论了系统的稳定性条件，获得系统发生分岔时系统参数之间的关系；并提出了通过改变参数来提高系统稳定性和抑制振幅的方法，最后通过仿真验证了改进后的系统振动抑制效果。
Base on the mathematic model of load - deflection relationship of the rectangular membrane , micro balloon actuator ' s theory curve of pressure - deflection has been calculated and plotted . after the simplified geometric model of microactuator was set up , by utilizing ansys mooney - rivlin hyperelastic model , nonlinear structural distortion of silicone rubber can be solved 通过建立气泡薄膜的几何简化模型，针对硅酮橡胶的材料非线性特点，选用了适合橡胶类材料的mooney - rivlin超弹性模型，运用ansys软件对这一非线性结构变形进行了求解。
First , one type of sma - based passive energy dissipation device was developed to utilize pseudo - elastic property . then , according to the characteristic of response of the passive energy dissipation systems , adapting the bilinear restored force model , the mof shear type elastic - plastic time history analysis program is compiled . the vibration - suppressed is verified and vibration control mechanism of sma dampers is studied by time - history analysis 首先利用sma的超弹性性能，设计了一种新型的耗能减震装置；其次，结合耗能减震结构的动力反应特点，采用双线性模型，编制了耗能减震结构串联多质点体系弹塑性时程分析程序，通过对有控结构和无控结构的地震响应分析比较，检验了sma耗能器的被动控制效果，探讨了其控制机理。
