标题：Stress analysis for electric stop valve of nuclear power plant considering action of preload and stem force
作者：Ji, Wang ;Zheng, Jianhua
作者机构：[Ji, Wang ;Zheng, Jianhua ] College of Power Engineering, Naval Univ. of Engineering, Wuhan, China
会议名称：2012 2nd International Conference on Machinery Electronics and Control Engineering, ICMECE 2012
会议日期：December 29, 2012 - December 30, 2012
来源：Applied Mechanics and Materials
摘要：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. © (2013) Trans Tech Publications, Switzerland.