
Design of compliant system requires a careful design of flexural hinges being its major component. Suchsystems find wide use in high precision positioning and scanning applications. Numbers of flexible jointsare proposed previously which are often designed based on intuition of designers and past experiences.This study compares two major types of flexible hinges viz. circular arc hinge and elliptical hinge used incompliant systems based on their functional parameters. Each joint is evaluated to study the effect ofchange in geometric configuration on hinge performance matrices which include range of motion, motionaccuracy and stress concentration in ANSYS Workbench. From the analysis results it is observed thattrade-off exists between deflection and stress. Circular arc joints outperform elliptical joints for motiondirection compliance while elliptical hinges exhibit good guiding accuracy as compared to circular arc.
Flexural mechanisms, Precision Scanning stages, Compliant hinges
Flexural mechanisms, Precision Scanning stages, Compliant hinges
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