Performance analysis of a double butterfly piezoelectric actuator in different motion modes

锯齿波 控制理论(社会学) 执行机构 声学 电压 物理 有限元法 工程类 结构工程 计算机科学 电气工程 控制(管理) 人工智能 电信
作者
Tianwei Liang,Jingshi Dong,Hu Huang,Jiru Wang,Hongwei Zhao
出处
期刊:Mechatronics [Elsevier BV]
卷期号:97: 103092-103092
标识
DOI:10.1016/j.mechatronics.2023.103092
摘要

In this article, a novel double-butterfly piezoelectric actuator in view of the stick-slip principle is purposed. By applying sawtooth waves with different periods and phases, the two motion modes of double-butterfly synchronous motion and alternating stepping motion can be realized. Further, the overall architecture design was carried out, the static characteristics of the butterfly stator and the modal analysis of the whole machine were studied by the finite element method, a prototype was made, a performance test system was built and a range of experiments were carried out. The test results show that the theoretical analysis and the experimental test are basically consistent. In the stepping motion mode, the working voltage is set to 100 V, when the frequency is 800 Hz, the prototype reaches a maximum speed of 6642 μm/s without load; when the initial preload is 3.5 N, the maximum output force of the prototype under 100 V is 0.5 N; a minimum step size of about 0.47 μm can be achieved at 40 V, 10 Hz and initial preload. The synchronous motion mode driver has a maximum speed of 5864 μm/s and a maximum output force of 1.3 N under no load, when the voltage is 60 V, the frequency is 10 Hz, the locking force is 3.5 N, and the minimum step size is about 1.36 μm. The developed drive device can enable the equipment to achieve high-speed, high-precision, high-load motion under different motion modes, and has high application value in aerospace, precision drive and other fields.
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