Multi-objective optimization of a type of ellipse-parabola shaped superelastic flexure hinge

被引：9

作者：

Du, Zhijiang ^{[1
]}

Yang, Miao ^{[1
]}

Dong, Wei ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Robot & Syst, 2 Yikuang St, Harbin 150080, Peoples R China

来源：

MECHANICAL SCIENCES | 2016年 / 7卷 / 01期

基金：

中国国家自然科学基金;

关键词：

BEAM ELEMENTS; DESIGN; EQUATIONS; MECHANISMS; PRECISION; SECTION;

D O I：

10.5194/ms-7-127-2016

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Flexure hinges made of superelastic materials is a promising candidate to enhance the movability of compliant mechanisms. In this paper, we focus on the multi-objective optimization of a type of ellipse-parabola shaped superelastic flexure hinge. The objective is to determine a set of optimal geometric parameters that maximizes the motion range and the relative compliance of the flexure hinge and minimizes the relative rotation error during the deformation as well. Firstly, the paper presents a new type of ellipse-parabola shaped flexure hinge which is constructed by an ellipse arc and a parabola curve. Then, the static responses of superelastic flexure hinges are solved via non-prismatic beam elements derived by the co-rotational approach. Finite element analysis (FEA) and experiment tests are performed to verify the modeling method. Finally, a multi-objective optimization is performed and the Pareto frontier is found via the NSGA-II algorithm.

引用

页码：127 / 134

页数：8

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