摘要
研究了形状记忆合金(SMA)用作微机械电子系统执行元件时的几个问题。在实验的基础上建立了实用化的SMA热机转换模型。分析了影响其动作频率的主要因素并提出了改善频率特性的措施。利用几何敏感度的概念,对SMA驱动性能受尺寸微型化的影响进行了探讨。
Some problems are studied about shape memory alloy (SMA) spring used as a actuator in micro electromechanical systems. The thermalmechanical conversion process of SMA spring is modelled based on experiments. The major factors that affect on the action frequence of SMA spring are analysed and a way of improving its frequence characteristic is presented. With the concept of dimension sensitivety, the effects of size minification on the driving characteristic of SMA spring are discussed.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
1994年第5期87-93,共7页
Journal of Mechanical Engineering
基金
国家自然科学基金
关键词
形状记忆合金
电子系统
弹簧
SMA Micro electromechanical system Actuator