Lamina Emergent Torsional (LET) Joint

作者:Jacobsen Joseph O; Chen Guimin; Howell Larry L*; Magleby Spencer P
来源:Mechanism and Machine Theory, 2009, 44(11): 2098-2109.
DOI:10.1016/j.mechmachtheory.2009.05.015

摘要

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.