斜接管压力容器结构强度分析  

Analysis of Structural Strength of Oblique-nozzle Pressure Vessel

作　　者：沈月音 邱阳[1] Shen Yueyin;Qiu Yang

机构地区：[1]先进核能技术全国重点实验室、中国核动力研究设计院,四川成都610213

出　　处：《一重技术》2025年第1期18-21,24,共5页CFHI Technology

摘　　要：采用数值分析方法对斜开孔压力容器在不同工艺参数下的应力强度进行详细分析。主要考虑参数包括接管位置Ld/L、斜接管角度φ及筒体内压P。研究表明,这些工艺参数对压力容器应力强度的大小和分布有显著影响。其中接管位置改变会引起周围局部应力集中的变化,斜接管倾角会影响应力分布的均匀性,而筒体内压增加会加剧接管附近的应力集中。This paper analyzes the stress intensity of the oblique-nozzle pressure vessel under different process parameters by adopting the numerical analysis method.Main parameters considered including nozzle position Ld/L,angle of the oblique-nozzleφand shell inside pressure P.The results show that these process parameters have significant influence on level and distribution of stress intensity of the pressure vessel.Among which,change of nozzle position can influence local stress concentration surrounding the nozzle,angle of the oblique-nozzle can affect uniformity of stress distribution,and increase of shell inside pressure can intensify stress concentration around the nozzle.

关 键 词：结构分析 斜接管 压力容器 开孔结构 应力分布 

分 类 号：TH49[机械工程—机械制造及自动化]