ANSYS极限载荷分析法在压力容器设计中的应用  

ANSYS Limit Load Analysis Method in Pressure Vessel Design

作　　者：白海永 方永利 

机构地区：[1]哈尔滨电气股份有限公司,黑龙江哈尔滨150046

出　　处：《压力容器》2014年第6期47-50,共4页Pressure Vessel Technology

摘　　要：基于弹性分析的应力分类法在压力容器分析设计中的应用已十分普遍,但在一些情况下,不能准确地区分一次与二次应力强度,如果按一次应力进行控制可能偏保守,按二次应力控制又偏冒进,一次结构法使用起来又比较复杂,因此需要寻找一种方便快捷的替代方法。随着工程实践和理论研究的进步,用以解决应力分类法不足之处的替代方法已逐渐成熟。从相关规范、ANSYS有限元软件应用等方面讨论了极限载荷法在压力容器分析设计中应用的方法及注意事项。The stress classification method based on elastic analysis is very common in the application of pressure vessel analysis design. But in some cases,this method can not accurately distinguish the primary stress intensity and the secondary stress intensity. It is conservative to control the stress as primary stress, but aggressive as secondary stress. The primary structure method is more complicated to use,so need to find another convenient method. With the progress of engineering practice and theoretical research, to make up for the lack of stress classification method has been gradually mature. The method of limit load a-nalysis application and matters needing attention in pressure vessel analysis design are discussed from the aspects of the relevant code standard and ANSYS finite element software applications.

关 键 词：压力容器分析设计 ANSYS有限元法 极限载荷分析 

分 类 号：TH122[机械工程—机械设计及理论] O241.82[理学—计算数学]