Thermal stress of surge line by finite element analysis

摘要

ANSYS finite element software is used to carry out a thermal-structure coupling analysis for a surge line. It is found that the maximum equivalent stress and large stress gradient occur at the two end of the surge line in either a normal or an accident working condition, while the maximum displacement deformation locates near the central part of the surge line in the two working conditions. These facts should be a reason that results in the bending deformation and thermal fatigue of a surge line.