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Dynamic analysis of a flexure-based compliant stage

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Abstract

This paper presents the dynamic analysis of a flexure-based compliant stage. The dynamic model is first obtained, after which the equivalent masses of the flexure hinge, including the axial equivalent mass, the bending equivalent mass, and the shear equivalent mass, are derived. According to this method, the equivalent mass components of the proposed stage are derived by accumulating those of the output platform, input platform, and flexure hinges. Finally, to verify the validity of the proposed method, the first two resonant frequencies and the corresponding mode shapes are analyzed by using finite element analysis (FEA). An experimental platform is fabricated, and experimental results and FEA values appear to be in accordance with the theoretical calculations. This result demonstrates that the dynamic model and equivalent mass are accurate. The dynamic model provides an effective method for calculating equivalent masses, and dynamic characteristics can be precisely estimated from the corresponding analytical models.

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Authors and Affiliations

  1. College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, China

    Yunsong Du & Guohua Gao

  2. Manufacturing Engineering Institute, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China

    Tiemin Li

Authors
  1. Yunsong Du
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  2. Tiemin Li
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  3. Guohua Gao
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Corresponding author

Correspondence to Yunsong Du.

Additional information

Recommended by Associate Editor Hyeong-Joon Ahn

Yunsong Du is a lecturer in College of Mechanical Engineering and Applied Electronics Technology at Beijing University of Technology. He earned his Ph.D. degree in 2017 from Tsinghua University. His research interests lie in flexure-based compliant mechanisms.

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Du, Y., Li, T. & Gao, G. Dynamic analysis of a flexure-based compliant stage. J Mech Sci Technol 32, 5223–5231 (2018). https://doi.org/10.1007/s12206-018-1020-0

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  • DOI: https://doi.org/10.1007/s12206-018-1020-0

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