Influence of Manufacturing Errors on Performance of Overconstrained Mechanism

Considering the planar closed mechanism as an overconstrained structure with statically indetermination and the non-plane characteristics of manufacturing errors, the dynamics analysis model for planar linkages based on consideration of the overconstraints out of the motion plane is established by introduction of compatibility conditions of twisting and bending deformation of links, and the combination of force analysis to deal with statically indeterminate structure in structural mechanics and dynamics analysis to planar linkages. The influences of the manufacturing errors on performance of overconstrained mechanism are revealed clearly by the simulation.