Abstract:

The hybrid modeling technology of coupling shell element with solid element is used to perform the finite element analysis and strength analysis of an autoclave for refining. In the investigation, first, the components of the autoclave are reasonably simplified based on the geometric characteristics, and a 3-D finite element model of the autoclave is built using the professional pre-processing software Hypermesh and the large finite element software Abaqus. Then, the stress intensity of the autoclave under the complex loads including the bending moment, the torque moment, the deadweight, and the concentrated force, ete. , is analyzed. Based on the analysis results, the safety of the autoclave is finally assessed according to JB 4732-1995 ＂Steel Pressure Vessels--Design by Analysis＂. The results show that the designed autoclave fully meets the safety requirements for such components as the support, the head, the web plate and the bolt, etc.

Key words: autoclave, finite element method, strength analysis, safety assessment, hybrid modeling