Then , performance tests are made on a kind of austenitic superelastic niti shape memory alloy wire . the energy dissipation capability of the wire and the influence of strain amplitude , loading frequency , as well as number of cycles , on working performance of the sma wire are investigated 然后对一种niti奥氏体超弹性记忆合金丝进行了材料性能试验，考察了这种记忆合金丝的超弹性耗能能力，同时分析了应变幅值，加载频率，循环次数以及工作温度对其工作性能的影响。
The way to eliminate chaos phenomenon through adjusting system parameters is indicated . the nonlinear dynamic behavior of journal bearing - rotor system in large parameter space is studied in numerical integral method and floquet theory and the first and second bifurcation behavior of nonlinear rotor system are discussed ; the concept is advanced that realizing the controllable nonlinear stiffness with sfd with the soft - nonlinear of sma in the super - elasticity state to make the vibration amplitude of system always be in the small solution state to reduce the vibration amplitude of rotor system 运用数值积分方法结合floquet理论对滑动轴承-转子系统的大参数范围非线性动力学特性进行了全面的研究，详细地讨论了系统的一次和二次分岔行为； 5 ）提出了用形状记忆合金在超弹性状态下的软非线性，结合挤压油膜阻尼器实现系统刚性的非线性可控，降低系统在非定常状态下的最大振幅的构想。
The relationships among stress , strain , resistance and temperature of niti memory - wire and superelastic wire , which are in constant temperature , constant stress and shape recovery , were measured and analyzed . the actuating property of cu - based spring in three basic conditions was investigated 对niti记忆丝及超弹性丝在恒温拉伸卸载、恒载变温以及形状回复过程中的应力-应变-电阻-温度之间的关系进行了系统的测试和分析；对cu基螺旋弹簧在三种基本使用状态下的驱动特性进行了研究。
