摘要
利用ANSYS建立容器开孔接管三维模型,针对其结构及载荷特点,将容器开孔接管结构离散,采用APDL语言编程对容器开孔接管在内压及热载荷作用下的静态力学行为进行了计算及疲劳分析,给出了应力评定和疲劳结果。计算结果表明,由于接管与筒体相贯处应力集中很大,一次加二次应力程度较高;设备在保温情况下,温度波动对疲劳造成的疲劳影响很小。
The mechanical response of the opening nozzles of a pressure vessel subjected to ther- mal loads were carried out using ANSYS software. By dispersing the structure finite elements, the mechanical and fatigue behavior were discussed by APDL language, and the result about stress evaluation and fatigue analysis are given. The result show that high first： plus second stress and stress concentration may be formed at the intersection between nozzle and cylinder, first plus second stress was higher, and temperature fluctuation has a small influence on fatigue under equipment insulation.
出处
《石油化工设备》
CAS
2012年第4期39-42,共4页
Petro-Chemical Equipment
基金
国家自然科学基金项目(50805072)
关键词
压力容器
热载荷
开口接管
应力评定
疲劳分析
pressure vessel
thermal load
opening nozzle
stress evaluation
fatigue analysis
