Design and nonlinear modeling of a large-displacement XYZ flexure parallel mechanism with decoupled kinematic structure

• DOI: 10.1063/1.2364132
• Publication Date: 2006-12-01T14:32:26Z
• Authors: Xueyan Tang; I-Ming Chen; Qing Li
• Keywords: Joint stiffness

This article proposes an XYZ flexure parallel mechanism (FPM) with large displacement and decoupled kinematic structure. The motion range of the large-displacement FPM using notch hinges is more than 1mm achieved by assembling typical prismatic joints a new joint proposed in this article. Moreover, stage has small cross-axis error parasitic rotation. An exact nonlinear modeling method for type presented. Using method, stiffness dynamics are studied. Comparison between pseudo-rigid-body methods performed on FPM. To verify experiments conducted to study linear joint. natural frequency also obtained from experimental data. rotation measured. results show that achieves motion, valid mechanism.