Right-circular corner-filleted flexure hinges

Author

Chen, Gui-Min ; Jia, Jian-yuan ; Li, Zhi-Wu

Author_Institution

Sch. of Electro-Mech. Eng., Xidian Univ., Xi´´an, China

fYear

2005

fDate

1-2 Aug. 2005

Firstpage

249

Lastpage

253

Abstract

A novel single-axis flexure hinge named right-circular corner-filleted (RCCF) flexure hinge, which is composed of half a right circular one and half a corner-filleted one, is presented. The flexibility expression, maximum stress and rotation precision of RCCF flexure hinge is provided, and validated by finite element method. Take the micro-adjustment mechanism in double-crystal monochromator for example; a group of RCCF flexure hinges with different corner-filleted radii are analyzed using the ANSYS finite element software, including a special RCCF hinge, i.e. right-circular hinge. The results show that the RCCF flexure hinges are more compliant than right-circular hinge and as precise as it in rotation. The RCCF flexure hinge is suitable for engineering applications where high displacement and high accuracy are needed.

Keywords

fasteners; finite element analysis; flexible structures; monochromators; ANSYS finite element software; double-crystal monochromator; flexibility expression; maximum stress; micro-adjustment mechanism; right-circular corner-filleted flexure hinges; rotation precision; Application software; Computer numerical control; Fasteners; Finite element methods; Friction; Manufacturing; Mechanical engineering; Microelectromechanical systems; Microscopy; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Automation Science and Engineering, 2005. IEEE International Conference on

Print_ISBN

0-7803-9425-9

Type

conf

DOI

10.1109/COASE.2005.1506777

Filename

1506777