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A novel stick-slip based linear actuator using bi-directional motion of micropositioner
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Guo, Z., Tian, Yanling, Zhang, D., Wang, T. and Wu, M. (2019) A novel stick-slip based linear actuator using bi-directional motion of micropositioner. Mechanical Systems and Signal Processing, 128 . pp. 37-49. doi:10.1016/j.ymssp.2019.03.025
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WRAP-novel-stick-slip-based-linear-actuator-using-bi-directional-motion-micropositioner-Tian-2019.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (1225Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.ymssp.2019.03.025
Abstract
A stick-slip based linear actuator was proposed in this paper, which applied the axial motion of the micropositioner to adjust the preload, and the lateral motion to drive the slider. The bi-directional motion of the micropositioner was realized through the asymmetric structure of a flexure-based mechanism, which includes two right circular flexure hinges and four leaf-spring flexure hinges. The static analysis, kinematic analysis and optimization design were successively implemented on the flexure-based mechanism. The Finite Element Analysis (FEA) proved the flexure-based mechanism could generate the bi-directional motion as designed. A prototype of the linear actuator was developed and the measuring system was constructed. A modified sawtooth wave with a cycloid fall curve was designed to improve the output property. The experimental results showed the modified sawtooth wave generated larger velocity than the traditional sawtooth wave in same driving voltages, fall times, driving frequencies and loads. The amplification coefficient and resolution of the proposed linear actuator in single step were 3.16 and 60 nm, respectively. The maximal velocity was 26.2 mm/s with the modified sawtooth wave in driving frequency of 500 Hz.
| Item Type: | Journal Article | |||||||||||||||||||||
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| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science > Engineering | |||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Actuators, Signal processing | |||||||||||||||||||||
| Journal or Publication Title: | Mechanical Systems and Signal Processing | |||||||||||||||||||||
| Publisher: | Academic Press | |||||||||||||||||||||
| ISSN: | 0888-3270 | |||||||||||||||||||||
| Official Date: | 1 August 2019 | |||||||||||||||||||||
| Dates: |
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| Volume: | 128 | |||||||||||||||||||||
| Page Range: | pp. 37-49 | |||||||||||||||||||||
| DOI: | 10.1016/j.ymssp.2019.03.025 | |||||||||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||||||||
| Publication Status: | Published | |||||||||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||||||||
| RIOXX Funder/Project Grant: |
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