Title :
Comparison of Single-Notch Circular Flexure Hinge Rotational Stiffness Equations with FEA Results and Derivation of Empirical Formulations
Author :
Zhang, Zhaocheng ; Hu, Hong
Author_Institution :
Shenzhen Grad. Sch., Dept. of Mech. Eng. & Autom., Harbin Inst. of Technol., Shenzhen, China
Abstract :
This paper presents the comparison of two different rotational stiffness equations of single-notch circular flexure hinge with FEA results. The errors of these equations increase with t/r ratios (r is the radius and t is the thickness of the hinge). In order to develop accuracy rotational stiffness equation for 0.04lest/rles0.8, a simple empirical equation is formulated based on FEA results with errors less than 1.5%.
Keywords :
elasticity; fasteners; finite element analysis; FEA; empirical formulations derivation; flexure hinge rotational stiffness equations; single-notch circular flexure hinge; Automation; Differential equations; Fasteners; Finite element methods; Linear approximation; Material properties; Mechanical engineering; Plastics; Stress; finite element; flexure hinge; polynomial fit; rotational stiffness; single-notch circular flexure hinge;
Conference_Titel :
Computational Sciences and Optimization, 2009. CSO 2009. International Joint Conference on
Print_ISBN :
978-0-7695-3605-7
DOI :
10.1109/CSO.2009.47
