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A dual-driven high precision rotary platform based on stick-slip principle
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Huo, Zhichen, Tian, Yanling, Wang, Fujun, Zhang, Wei, Shi, Beichao and Zhang, Dawei (2022) A dual-driven high precision rotary platform based on stick-slip principle. IEEE/ASME Transactions on Mechatronics, 27 (5). pp. 3053-3064. doi:10.1109/TMECH.2021.3125825 ISSN 1083-4435.
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Official URL: http://dx.doi.org/10.1109/TMECH.2021.3125825
Abstract
Aiming at the realization of high precision angle adjusting, this article proposed a rotary platform based on stick-slip principle, which adopted a dual-driven working mode to realize large circular motion stroke and high loading capacity. Based on flexure hinges, a symmetrical flexible mechanism with two driving feet was designed to generate coupled driving displacement. By actuating the piezoelectrics alternatively, the proposed dual-driven working principle was described in detail, which could effectively suppress the back-off phenomenon and improve loading capacity. The theoretical analysis and finite element simulation were conducted to investigate the characteristic of flexible driving unit. The dynamic model of dual-driven working mode was established and simulated in MATLAB/Simulink, and the influence of preloading coefficient and initial preloading force were investigated, which provided a guidance for the design and optimization of stick-slip actuator. Additionally, a prototype was fabricated, and a series of experiments were conducted. The results indicated that the maximum rotary speed and loading capacity of rotary platform were 48.3 mrad/s and 98.8 mN·m, respectively.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Journal or Publication Title: | IEEE/ASME Transactions on Mechatronics | ||||||||
Publisher: | Institute of Electrical and Electronics Engineers | ||||||||
ISSN: | 1083-4435 | ||||||||
Official Date: | October 2022 | ||||||||
Dates: |
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Volume: | 27 | ||||||||
Number: | 5 | ||||||||
Page Range: | pp. 3053-3064 | ||||||||
DOI: | 10.1109/TMECH.2021.3125825 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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