摘要
在直线型内嵌式形状记忆和合金驱动器(ESMAA)的研究基础上,提出了弯曲型ESMAA结构。该驱动器工艺简单,循环寿命更长,运行可靠性更高。通过温控方式可实现驱动器的往复可逆弯曲运动,对外稳定输出力和位移。本文建立了驱动器的变形理论,结合实验结果,对丝半径、丝的预变形量和棒半径进行了优化设计,得出了这一驱动器设计的规律性结论。
On the basis of the existing linear embedded shape memory alloy actuator (ESMAA) , a new type of ESMAA with a U-shape recovering SMA ( shape memory alloy) wire is firstly presented. With lower technological complexity, longer operating life and higher reliability, the actuator can output force and displacement steadily through recoverable temperature circle. The deflection theory is established based on the experiment results. Finally, the general design principle is described on the basis of optimization design of wire's radius, wire's orestrain and rod's radius.
出处
《机械科学与技术》
CSCD
北大核心
2005年第8期950-952,984,共4页
Mechanical Science and Technology for Aerospace Engineering
基金
中国博士后科学基金项目(20040350194)
台达电力电子科教发展基金项目(2004)
湖北省自然科学基金项目(2004ABA107)
华中科技大学博士后科研专项基金项目(2004004)资助