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ZHANG Zhao-cheng,WAN Jing,HU Hong.Simulation optimal design of a compliant mechanism with circular notch flexure hinges based on the equivalent beam methodology[J].Journal of Harbin Institute Of Technology(New Series),2011,18(4):67-70.DOI:10.11916/j.issn.1005-9113.2011.04.014.

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Simulation optimal design of a compliant mechanism with circular notch flexure hinges based on the equivalent beam methodology

Author Name	Affiliation
ZHANG Zhao-cheng	School of Mechanical and Electrical Engineering,Harbin Institute of Technology,Harbin 150001,China
WAN Jing	Library of Harbin Institute of Technology,Harbin 150001,China
HU Hong	School of Mechanical and Electrical Engineering,Harbin Institute of Technology,Harbin 150001,China

Abstract:

This paper presents an in-depth study of Equivalent beam model (EBM).Firstly three-dimensional (3D) finite element analysis (FEA) model for circular flexure hinge developed by Zettl et al.was verified by the comparison with Smith’s experimental results and the 3D FEA model was feasible within 5.5% error.Then the accuracy of Timoshenko short-beam due to shear force was verified based on finite element method.The results showed that the EBM has good accuracy within 5% error for 1≤r/t≤3.Finally the EBM methodology was applied for the simulation optimal design of a bridge-type compliant mechanism.The results showed that the EBM methodology has very high numerical efficiency and satisfactory accuracy for simulation optimal design of planar compliant mechanism with flexure hinges.

Key words: euivalent beam methodology compliant mechanisms flexure hinges finite element simulation

DOI：10.11916/j.issn.1005-9113.2011.04.014

Clc Number:TH132.45

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