Stress Analysis of Parallel Robots With Compliant Joints

To study the fatigue life and optimized design of the parallel robot with compliant joints based on the model of a 3-DOF planar parallel robot with compliant joints, the formula of the stress was derived. The theory results were obtained on MATLAB, and compared with the results of united simulation model by SolidWorks, ANSYS and ADAMS. Results show that the trends of the stresses of the theoretical calculations and software simulations are generally consistent, and the maximum relative error is 6.71%, which is proven to be correct and effective.