Optimal design of a flexure-hinge precision stage with a lever

Eun Joo Hwang, Kyung Suk Min, Shin Hyung Song, Il Hyuk Ahn, Woo Chun Choi

    Research output: Contribution to journalArticlepeer-review

    20 Citations (Scopus)

    Abstract

    Lever mechanisms are usually used to enlarge output displacements in precision stages. A precision stage employing a lever mechanism and flexure hinges is analyzed theoretically, with bending in the lever considered. Relations between design parameters and magnification ratio, and the optimal values for the parameters to achieve a longer stage displacement are presented. Finite element analysis is used to verify the theoretical analysis. It is found that adjustment of lever dimensions and hinge stiffnesses can increase the stage travel range significantly.

    Original languageEnglish
    Pages (from-to)616-623
    Number of pages8
    JournalJournal of Mechanical Science and Technology
    Volume21
    Issue number4
    DOIs
    Publication statusPublished - 2007 Apr

    Keywords

    • Design parameter
    • Flexure hinge
    • Lever
    • Magnification ratio
    • Neck thickness
    • Output displacement to input force
    • Spring rate
    • Stage
    • Travel range

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Mechanical Engineering

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