执行机构
线性执行器
直线运动
机制(生物学)
控制理论(社会学)
旋转致动器
工作(物理)
运动(物理)
电压
直线电机
工程类
声学
机械工程
计算机科学
物理
电气工程
人工智能
控制(管理)
量子力学
作者
Yanlin Xie,Yangmin Li,Chi Fai Cheung
标识
DOI:10.1088/1361-665x/aca18a
摘要
Abstract To meet the demand of designing piezoelectric actuators with long working stroke and high resolution, a new parasitic motion principle (PMP) linear actuator based on the symmetrical Z-shaped compliant mechanism was proposed in this paper. The mechanism design and the operation principle of the proposed linear actuator were elaborated. The theoretical model of the symmetrical Z shaped compliant mechanism deformation was established, and was verified by the simulation analysis. Experimental studies were conducted on a manufactured prototype to investigate the performances of the proposed linear actuator. The results indicate that a linear actuator with bi-directional motion can be achieved, which has a resolution of 106 nm in the forward direction and 84 nm in the reverse direction. Under the locking force of 0.8 N, the maximum speed of 270 µ m s −1 was reached, when the amplitude and the frequency of the driving voltage were set to 60 V and 650 Hz. It is also noted that the proposed linear actuator can work with a loading capacity of 25 g. This study has provided an alternative way for the development of a PMP linear actuator with bi-directional motion.
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