首页|Design and analysis of a Contact-Aided Leaf Hinge (CALH) with continuous variable stiffness
Design and analysis of a Contact-Aided Leaf Hinge (CALH) with continuous variable stiffness
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NSTL
Elsevier
This paper introduces a design method to realize the transition of variable stiffness from discrete to continuous through contact interaction. Based on this, a Contact-Aided Leaf Hinge (CALH) with passive variable stiffness is proposed, which consists of a flexible segment and a rigid part. As the deformation increases, the flexible segment contacts with the rigid part continuously, resulting in the variation of bending stiffness. The configuration, modeling and deformation process are illustrated in detail. Several examples of conic contact regions are analyzed through the chained pseudo-rigid-body model (CPRBM) and finite element analysis (FEA). Besides, physical prototypes are manufactured and experimental tests are performed to verify the feasibility of the design. Finally, some applications, parasitic motion and coupling effects are discussed. By further designing the dimensions and contact surface, the CALH can satisfy various requirements.
NSTL
Elsevier
