Design and performance comparison of double-series and triple-series flexure hinges

QIU Li-fang; WANG Jing-lin; LENG Ying-chun; WANG Dong

doi:10.13374/j.issn2095-9389.2017.05.015

Volume 39 Issue 5

May 2017

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QIU Li-fang, WANG Jing-lin, LENG Ying-chun, WANG Dong. Design and performance comparison of double-series and triple-series flexure hinges[J]. Chinese Journal of Engineering, 2017, 39(5): 762-768. doi: 10.13374/j.issn2095-9389.2017.05.015

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QIU Li-fang, WANG Jing-lin, LENG Ying-chun, WANG Dong. Design and performance comparison of double-series and triple-series flexure hinges[J]. Chinese Journal of Engineering, 2017, 39(5): 762-768. doi: 10.13374/j.issn2095-9389.2017.05.015

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Design and performance comparison of double-series and triple-series flexure hinges

doi: 10.13374/j.issn2095-9389.2017.05.015

School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2016-07-29

Abstract

Abstract

The flexible hinge is one of the most important components in lamina emergent mechanisms (LEMs), so the design of a new type of lamina emergent torsional (LET) joint can play a key role in its movement performance. This paper presents double- and triple-series LET flexure hinges, designs the structure of the two hinges, and derives the calculation formula for their bending equivalent stiffnesses. Through theoretical and finite element analyses of the design example, verifies the correctness of the calculation formula for equivalent stiffness. By comparing the bending, tension, and compression performances of the double-and triple-series LET flexure hinges with those of the outside LET flexure hinge, which shares the same outline dimensions of the former, it can be concluded that the triple-series LET flexure hinge can greatly enhance bending performance without any obvious decrease in its tension and compression performances.
- lamina emergent mechanisms,
- lamina emergent torsional joint,
- series flexure hinge,
- equivalent stiffness,
- finite element

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References(16)

References

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