How to use the simplified method simulate the assembly has attracted the attention of many researchers. For a practical example, a 3D assembly model is simplified based on ANSYS Workbench On the basis of the origi- nal 3D model directly, create the plate and shell model with surface body and create a beam model with the line body, the connection relationship between the plate, shell and solid is simulated use spot welding. Take the calcula- tion of rigidity of a seedbed automatic labeling system under its own gravity for example, compare the analysis re- suits of the simplified model and unsim...