Model Building of Finite Element Analysis Based on ANSYS of Column Jib Crane

To improve design accuracy and shorten its cycle, finite element method is adopted in the process of crane designing. The integrated finite element analysis model was established for the whole column jib crane using finite element analysis software ANSYS. A feasible computational model which reflects the actual structure was built and displacement boundary condition was determined reasonably. By using the symmetries of structure and load, neglecting the specific structure of bearing but reserving motion relationship between slewing jib spindle and column bearing chamber, the model is simplified logically. The slewing jib, which has great stress gradient, was separated into two parts while its interface was maintained for different density when meshing. The model calculation results are in very good agreement with actual conditions which provide a theory basis for optimal design of integrated structure of column jib crane and modeling for products with similar structure.