Output displacement analysis for compliant single parallel four-bar mechanism

The compliant parallel guiding mechanism is widely used in the micro-driving and precision measurement. In order to analyze the output displacement characteristics of compliant parallel guiding beam, a half beam model was established based on the force analysis and deformation analysis of the supporting arm according to the symmetrical structure. And the guiding displacement and coupled displacement formulas was derived and verified by experiments. Results show that the guiding displacement is roughly linearly with the force and the relation between guiding displacement and coupled displacement is likewise exponential within elastic range of compliant beam.