Cu基形状记忆合金螺旋弹簧热机性能研究  

Thermomechanical Properties of Helical Spring of Cu-based Shape Memory Alloys

作　　者：邱自学[1] 张河[2] 

机构地区：[1]南通工学院机械工程系,江苏南通226007 [2]南京理工大学机械工程学院,江苏南京210094

出　　处：《机械工程材料》2001年第8期30-33,共4页Materials For Mechanical Engineering

基　　金：江苏省自然科学基金资助项目 (BJ990 34)

摘　　要：论述了形状记忆合金 (SMA)弹簧驱动元件的应力、应变、温度和相变之间的测试关系并进行了系统的测试。结果表明 :SMA弹簧元件在三种基本使用状态下的应力 应变 温度关系呈非线性 ,设计中不能直接应用虎克定律。The relationships among strain, stress, temperature and phase transformation of shape memory alloy (SMA) spring were investigated. The results show that the relationships about strain stress, strain temperature and stress temperature of SMA helical spring in the three basic application forms are non linear, the recovery force depends on predeformation and environmental temperature, and Hooke′s Law can not be directly used in design. Experimental results are very useful to reveal the actuating behaviors and to design actuators of SMA spring.

关 键 词：形状记忆合金 驱动元件 热机性能 测试 螺旋弹簧 

分 类 号：TH135.1[机械工程—机械制造及自动化] TG139.6[一般工业技术—材料科学与工程]