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Design of a Large-Stroke Bistable Mechanism for the Application in Constant-Force Micropositioning Stage
Xu, Qingsong
2017-02
Source PublicationJOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME
ISSN1942-4302
Volume9Issue:1
AbstractTo overcome the constraint of conventional tilted beam-based bistable mechanism, this paper proposes a novel type of bistable structure based on tilted-angle compound parallelogram flexure to achieve a larger stroke of negative stiffness region while maintaining a compact physical size. As an application of the presented bistable mechanism, a flexure constant-force micropositioning stage is designed to deliver a large stroke. The constant force output is obtained by combining a bistable flexure mechanism with a positive-stiffness flexure mechanism. To facilitate the parametric design of the flexure mechanism, analytical models are derived to quantify the stage performance. The models are verified by carrying out nonlinear finite-element analysis (FEA). A metal prototype is fabricated for experimental study. Results demonstrate the effectiveness of the proposed ideas for a long-stroke, constant-force compliant mechanism dedicated to precision micropositioning applications. Experimental results also show the appearance of two-stage constant force due to the manufacturing errors of the bistable beams.
DOI10.1115/1.4035220
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Robotics
WOS SubjectEngineering, Mechanical ; Robotics
WOS IDWOS:000394715100006
PublisherASME
The Source to ArticleWOS
Fulltext Access
Citation statistics
Cited Times [WOS]:18   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Recommended Citation
GB/T 7714
Xu, Qingsong. Design of a Large-Stroke Bistable Mechanism for the Application in Constant-Force Micropositioning Stage[J]. JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME,2017,9(1).
APA Xu, Qingsong.(2017).Design of a Large-Stroke Bistable Mechanism for the Application in Constant-Force Micropositioning Stage.JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME,9(1).
MLA Xu, Qingsong."Design of a Large-Stroke Bistable Mechanism for the Application in Constant-Force Micropositioning Stage".JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME 9.1(2017).
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