Stress Analysis for Electric Stop Valve of Nuclear Power Plant Considering Action of Preload and Stem Force
The finite element model of electric stop valve with flange bolts preload and valve stem force was established to improve the valve stress calculation method which was based only on action of fluid pressure,thermal stresses and pipe reaction forces.The principle and application of pretension load elements were expounded.By ANSYS,the stresses of this valve with preload and valve stem force were calculated,and the Mises equivalent stresses contour and some values of key position of whole valve were obtained.The results indicate the influence of the stresses on the valve caused by preload of bolt mounted on the flange and valve stem force can not be ignored.
stop valve bolt valve stem preload stress analysis ANSYS
Wang Ji Zheng Jianhua
College of Power Engineering,Naval Univ.of Engineering,Wuhan,China
国际会议
济南
英文
1210-1213
2012-12-29（万方平台首次上网日期，不代表论文的发表时间）