Multiphysics Stress and Vibration Analysis of Pressure Vessels under Low Pressure and Medium Temperature Conditions

Abstract

The work focus on FE analysis and investigations of thermo mechanical constraints on the pressure vessel. The thermal stresses, deformation developed in the finite element analysis (FEA) for the pressure vessel are compared with analytical results. The vessel is designed using ASME section VIII Division 2 and the required thickness of the head, cylindrical shell etc. are to be validated using the FEA tool. The static and thermal analysis (multi-physics analysis, combined loading) will be carried out using ANSYS tool. Also, natural frequency of pressure vessel will found out using modal analysis. Study focuses on two different constraints conditions of the right-hand saddle and performed for constant internal design temperature and internal design pressure. It is found that the pressure vessel is in a safe zone when the right hand saddle is free along axial direction