China Mechanical Engineering ›› 2021, Vol. 32 ›› Issue (09): 1017-1026.

### Design Calculation and Performance Analysis of Elliptical Corner-filleted Hybrid Flexure Hinges#br#

WANG Chuanli1,2,3;LI Cheng1,3;HE Tao1,2,3;CHEN Guoyu1,3

1. 1.School of Mechanical Engineering,Anhui University of Science and Technology,Huainan,Anhui,232001
2.Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment,China University of Mining and Technology,Xuzhou,Jiangsu,221116
3.Anhui Key Laboratory of Mine Intelligent Equipment and Technology,Anhui University of Science and Technology,Huainan,Anhui,232001
• Online:2021-05-10 Published:2021-05-28

### 椭圆导角混合柔性铰链的设计计算与性能分析

1. 1.安徽理工大学机械工程学院，淮南，232001
2.中国矿业大学江苏省矿山机电装备重点实验室，徐州，221116
3.安徽理工大学矿山智能装备与技术安徽省重点实验室，淮南，232001
• 通讯作者: 何涛（通信作者），男，1987年生，讲师、博士。研究方向为流体传动与控制及表面织构减磨等。E-mail：taoheaust@163.com。
• 作者简介:王传礼，男，1964年生，教授、博士研究生导师。研究方向为精密驱动技术、流体传动与控制技术等。
• 基金资助:
国家自然科学基金(51675003)；
安徽省自然科学基金（2008085QE216）；
安徽省高校自然科学研究项目（KJ2018A0078）；
江苏省矿山机电装备重点实验室开放基金（JSKL-MMEE-2018-4）；
安徽省学术和技术带头人科研活动经费（2019D215）；
安徽理工大学研究生创新基金（2019CX2035）

Abstract:  In order to meet the large compliance requirements of compliant mechanisms, a new type of elliptical corner-filleted flexure hinge was designed. Firstly, the formulas of compliance and rotation accuracy were derived on the basis of the Castiglianos second theorem. Under the limit condition of parameters, the structure of elliptical corner-filleted evolved into three other hinge forms: right circular corner-filleted, elliptical right circular and right circular flexure hinge. The calculation formulas of compliance and rotation accuracy of various flexure hinges were combined in a set of equations. The correctness of the calculation formula was verified by the finite element analysis. Secondly, the influence trend of structural parameters on compliance, rotation accuracy and compliance accuracy ratio was discussed. The analysis results show that compliance and rotation accuracy have the opposite trend with the change of parameters, and reducing the minimum thickness is the best way to improve compliance. Then, the performances of four kinds of flexure hinges were compared. The results show that the elliptical corner-filleted hybrid flexure hinge has the maximum compliance but low rotation accuracy, while the right circular flexure hinge has the high rotation accuracy and superior comprehensive performance, but the minimum compliance. Finally, the examples of the elliptical corner-filleted and the right circular flexure hinge were applied and analyzed. The analysis results show that the novel flexure hinge has significant advantages in rotation range and stress level.

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