基于ANSYS Workbench软件的压力容器管板应力分析

采用有限元分析软件ANSYS Workbench，对管壳式换热器管板进行了有限元分析，并按照应力分析标准JB 4732—1995分析了管板在正常工作、开工和停工过程中可能出现的4种瞬态和稳态操作工况下的应力强度。分析结果表明，最大应力发生在换热管与管板的连接处和筒体与管板的连接处；换热管与管板之间的连接强度、筒体与管板之间连接强度的主要影响因素为压力载荷。由强度校核结果可知，该换热器的设计符合使用标准。

Stress Analysis of Pressure Vessel Tube Sheet Based on ANSYS Workbench Software

The finite element analysis software ANSYS Workbench is used to analyze the tube shell of shell-and-tube heat exchanger. According to the stress analysis standard JB 4732—1995, the stress intensity of tube sheet under four kinds of transient and steady-state operating conditions which may occur during normal operation, start-up and shutdown are analyzed. The results show that the maximum stress occurs at the junction of the heat exchange tube and the tube sheet and the joint between tube and tube sheet. The main influencing factor of the connection strength between the heat exchange tube and the tube sheet and the connection strength between tube and tube sheet is the pressure load.According to the strength check results, the design of the heat exchanger conforms to the standard of use.