Dynamic linearity model and experiment for a giant magnetostrictive actuator

被引：0
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作者：
Key Laboratory of Electro-Magnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin 300130, China [1 ]
机构：
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2007年 / 27卷 / 18期
关键词：
Actuators; -; Springs; (components); Vibrations; (mechanical);
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摘要：
A dynamic linearity model of the giant magnetostrictive actuator has been founded, based on the electro-magnetic theory and mechanical vibration principle. The model quantifies the relation between output displacement and input current by analyzing mechanical impedance of the Terfenol-D rod, spring and output shaft for the actuator. The output displacement for the actuator has been calculated and it is found that the dynamic linearity model can describe the output displacement characteristic for the actuator under the frequency from 0 Hz to 2200 Hz. The experimental results have confirmed the model's validity and practicability, and the model can provide the groundwork for the design and optimum of actuators.
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页码：96 / 101
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