Abstract
Flexure hinge has been widely used in high precision micro-positioning mechanism driven by piezoelectric ceramic and the most common type is right circular flexure hinge. According to the size of the cutting arc radius of both sides of right circular flexure hinge, the structure coefficient is introduced and asymmetrical right circular flexure hinges are summarized and classified. There is an offset value in the centre point of flexure hinge under a load, which will affect its displacement accuracy. So, the accuracy performance is analyzed by using finite element method. The program created by using a programming language named APDL in software ANSYS automatically builds the analytic model to achieve parametric analysis. The analytic result has an important significance to design flexure hinge.
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