Design and Modeling of a Compact Three-Stage Displacement Amplification Mechanism Based on RBC-Inspired Flexure Hinges

Yuan, Lei; Ling, Mingxiang; Lai, Jianhao; Zeng, Tingjun; Zhu, Benliang; Li, Hai; Yang, Lixin; Zhang, Xianmin

doi:10.1007/978-3-031-45705-0_45

Cited by 1 publication

(1 citation statement)

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“…In the compression-based design, the displacement amplification ratio increases with the input force [24]. Furthermore, the input-output displacements, input stiffness, fundamental frequencies, and frequency response of the proposed CODA were calculated using a graphic transfer matrix method [41]. However, the static constraint, structural optimization, and graphic transfer matrix methods did not alter the small-deflection-based design schemes.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear design, analysis, and testing of a single-stage compliant orthogonal displacement amplifier with a single input force for microgrippers

Chen,

Fan,

et al. 2024

J. Micromech. Microeng.

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To achieve dexterous and stable micro/nanomanipulation, a large grasping stroke, compact design, and parallel grasping are required for microgrippers; thus, a single-stage compliant orthogonal displacement amplifier (CODA) with a single input force would be an ideal transmission mechanism. However, the existing small-deflection-based design schemes cannot adapt to large deflections or shearing effect, thereby affecting the orthogonal movement transformation accuracy. This study proposed, analyzed, and experimentally investigated a nonlinear design scheme for a single-stage CODA with a single input force. First, the nonlinear design principle is described qualitatively. By combining closed-form analytical modelling, finite element analysis, and numerical fitting, the nonlinear extent of a pre-set variable cross-sectional beam in the CODA is formulated. By utilizing the beam constraint model and small-deflection-based modelling, the nonlinear extent of the undetermined uniform straight beam in the CODA is derived. Based on the design principle and nonlinear models, a nonlinear design scheme is proposed quantitatively. Finite element simulations and experimental tests are conducted to verify the proposed scheme, and the limitations of our previous study are revealed.

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Section: Introductionmentioning

confidence: 99%