JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 36 Issue 3
June 2021
Article Contents
ZHANG Zhigang, ZHOU Xiang, MAO Hongsheng and et al. Dynamic analysis of compliant mechanism based on geometrically exact Euler-Bernoulli beam element[J]. Journal of Light Industry, 2021, 36(3): 70-78. doi: 10.12187/2021.03.009
Citation: ZHANG Zhigang, ZHOU Xiang, MAO Hongsheng and et al. Dynamic analysis of compliant mechanism based on geometrically exact Euler-Bernoulli beam element[J]. Journal of Light Industry, 2021, 36(3): 70-78. doi: 10.12187/2021.03.009 shu

Dynamic analysis of compliant mechanism based on geometrically exact Euler-Bernoulli beam element

  • Received Date: 2020-06-17
    Accepted Date: 2020-12-05
  • The problems of dynamic modeling and simulation of compliant mechanisms with large deformation were investigated based on the geometrically exact beam theory (GEBT).Using the assumption of Euler-Bernoulli beam,the deformation field of the large deformation beam element was constructed,which could guarantee the perpendicularity between beam cross section and center line.The generalized element force,mass matrix and external force of the geometrically exact Euler-Bernoulli beam element were derived,and the accurately dynamic models of two typical compliant mechanisms including the compliant four-bar mechanism and spatial arc-guide compliant mechanism were established and simulated.The comparison of numerical results obtained by the proposed method,commercial software ADAMS and the absolute nodal coordinate formulation (ANCF) beam element model showed that using geometrically exact Euler-Bernoulli beam element for dynamic simulation analysis of compliant mechanism had advantages both in calculation efficiency and accuracy.
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