Compliant Mechanisms, Lamina Emergent Mechanisms, Torsion Hinges
Part of the challenge in designing compliant mechanisms is finding suitable joints that provide the needed motion and force-deflection characteristics. The Lamina Emergent Torsional (LET) Joint is presented as a compliant joint suited for applications where large angular rotation is desired, but high off-axis stiffness is not as critical. The joint is introduced and the equations necessary for determining the force-deflection characteristics are presented. Since the LET Joint can be fabricated from a single planar layer, it is well suited for macro and micro applications. Illustrative examples are provided with devices fabricated from materials as diverse as steel, polypropylene, and polycrystalline silicon.
Original Publication Citation
Jacobsen, J.O., Chen, G., Howell, L.L., Magleby, S.P., “Lamina Emergent Torsion (LET) Joint,” Mechanism and Machine Theory, Vol. 44, No. 11, pp. 2098-2109, 2009.
BYU ScholarsArchive Citation
Jacobsen, Joseph O.; Chen, Guimin; Howell, Larry L.; and Magleby, Spencer P., "Lamina Emergent Torsion (LET) Joint" (2009). All Faculty Publications. 1560.
Ira A. Fulton College of Engineering and Technology
© 2009 Elsevier Ltd. All rights reserved. This is the author's submitted version of this article. The definitive version can be found at http://www.sciencedirect.com/science/article/pii/S0094114X09001116. DOI: 10.1016/j.mechmachtheory.2009.05.015.
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