现在位置:首页 » 论文 »

复杂加载条件下压力容器蠕变疲劳评定方法

作者:Kenny Shen ⁄ 时间:2016年10月01日 ⁄ 分类: 论文 评论:0 摘要 核电、石油化工、煤化工等行业的压力容器在服役过程中会受到高温高压和循环载荷的共同作用,设计时必须同时考虑蠕变和疲劳的影响。ASME III-NH规范提供了蠕变疲劳寿命设计方法。本文借助有限元分析软件ANSYS Workbench,采用ASME III-NH规范中的方法对煤化工中的OCP反应器进行整体蠕变疲劳寿命评定,详细阐述该规范的设计思想和具体步骤,并讨论蠕变和疲劳对于设计寿命的影响。最后,建议国内分析设计规范在修订时可以引入蠕变疲劳分析和评定方法,以满足核电、石化等领域的工业需求。

关键词:蠕变疲劳,有限元,分析设计,反应器。

 

Evaluation Method of Creep-fatigue for Pressure Vessels Under Complex Loading Conditions

Shen Jun1, Chen Zhiwei2, Liu Yinghua1

(1.Department of Engineering Mechanics , Tsinghua University , Beijing 100084, China. 2.China Standardization Committee on Boilers and Pressure Vessels, Beijing 100013,China)

Abstract:  Many pressure vessels and equipment components encounter elevated temperature and cycling loading simultaneously in modern industry, especially in nuclear power industry, petro-chemical industry and coal-chemical industry. In such cases, creep-fatigue interaction should be considered. In this paper, creep-fatigue evaluation of OCP reactor was performed according  to ASMEIII-NH Code using ANSYS Workbench software; Design concept and detailed procedure were introduced; effect of creep and fatigue on design life respectively was summarized. Finally, suggestion was proposed that creep-fatigue evaluation method should be incorporated into Chinese Standard of design by analysis to satisfy fierce demand from nuclear power industry, petro-chemical industry, etc.

KeywordsCreep-fatigue, Finite Element, Design by Analysis, Reactor

1.png

 

本文由Kenny Shen原创或编辑,转载请保留链接【复杂加载条件下压力容器蠕变疲劳评定方法】http://kennyshen.com/?post=65 上一篇: 2016全国化工机械学术会议概况
下一篇:SEISMIC ANALYSIS OF LARGE TOWERING EQUIPMENT BASED ON TRANSIENT DYNAMIC ANALYSIS
目前有 0 条评论