Compliance calculation method for planar flexure-based mechanisms

doi:10.16511/j.cnki.qhdxxb.2016.22.024

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Abstract Flexure-based mechanisms are widely used in industry as highly precise micro-motion mechanisms. This paper presents a compliance calculation method for planar flexure-based mechanisms. The compliance of flexure hinges is used to relate the deformations to the loads on flexure member with the end-effector motion obtained using the virtual work principle. Then, a matrix method is used to derive concise compliance equations for serial and parallel flexure mechanisms. The compliance and the relationship between the compliance terms and variable geometric parameters are analyzed for three typical flexure-based mechanisms. The model results compare well with finite element method (FEM) predictions with a maximum difference of 7% and an average difference of 3%. This method provides theoretical and technical support for the design and optimization of flexure-based mechanisms.

Keywords flexure-based mechanisms compliance matrix method

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TH112

Issue Date: 15 June 2016

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	DU Yunsong
	LI Tiemin
	JIANG Yao
	ZHANG Jinglei

Cite this article:

DU Yunsong,LI Tiemin,JIANG Yao, et al. Compliance calculation method for planar flexure-based mechanisms[J]. Journal of Tsinghua University(Science and Technology), 2016, 56(6): 633-639.

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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2016.22.024 OR http://jst.tsinghuajournals.com/EN/Y2016/V56/I6/633

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