关键词: 屈曲, 临界力, 柔性铰链, 柔性机构, 有限元

Abstract:

The importance of the study on buckling performance was presented. The mathematical model, used to calculate the buckling critical force of compliant parallel four-bar mechanism with right-angle notch flexure hinges, was established with the approximative differential equations of the flexible curve based on the bending theory in strength of materials. The buckling critical force of the sample was tested on the simple and reliable experimental equipment. Meanwhile, the nonlinear buckling analysis was carried out using the finite element model (FEM) method.

Key words: buckling,  , critical , force,  , flexure , hinge,  , compliant , mechanism,  , FEM