具有大开孔接管结构的椭圆封头边界效应

华南理工大学学报（自然科学版） ›› 2006, Vol. 34 ›› Issue (4): 106-110.

具有大开孔接管结构的椭圆封头边界效应

郭崇志陈文昕纪昌盛

华南理上大学工业装备与控制工程学院，广东广州 510640

收稿日期:2005-05-11 出版日期:2006-04-25 发布日期:2006-04-25
通信作者: 郭崇志(1956-)，男，博：上牛，副教授，主要从事过程装备系统分析设汁及汁算机辅助工程技术研究． E-mail:guoehongz@ gmail.com
作者简介:郭崇志(1956-)，男，博：上牛，副教授，主要从事过程装备系统分析设汁及汁算机辅助工程技术研究．

Boundary Efect of Large Opening with Nozzle Structure on Ellipsoidal Head

Guo Chong-zhi Chen Wen-xin Ji Chang-sheng

Coilege of Industrial Equipment and Control Engineefing,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China

Received:2005-05-11 Online:2006-04-25 Published:2006-04-25
Contact: 郭崇志(1956-)，男，博：上牛，副教授，主要从事过程装备系统分析设汁及汁算机辅助工程技术研究． E-mail:guoehongz@ gmail.com
About author:郭崇志(1956-)，男，博：上牛，副教授，主要从事过程装备系统分析设汁及汁算机辅助工程技术研究．

摘要/Abstract

摘要： 通过理论计算分析了椭圆封头大开孔结构的一般情况，即两个相互干涉的边界对封头结构性能的影响问题．发现当开孔率达到90%(即r/=0．9)时，尽管两个干涉的边界相距很近，但开孔边界的应力集中问题仍然可以按接管边界单独存在的情况进行处理．这一发现表明，开孔率较大的情况下，边界效应的相互干涉和影响应当加以考虑的传统观点需要加以修改，从而为提供更简洁的工程设计方法打下了基础．

关键词: 椭圆封头, 大开孔, 接管, 边界效应

Abstract:

The general feature of the large opening with nozzle structure on ellipsoidal head. in which the propertv of the head is influenced by two interferential boundaries ,are investigated in this paper.It is found that.although the two interferential boundaries are very close to each other when the ratio of ope-ning achieves 90% (r/R=0. 9).the single boundary effect at the nozzle side also applies to the analysis of stress concentrafton with the presence of two boundaries.This conclusion provides some necessary modifications to the traditional point of view.which holds that in large opening structure,fhe interference& inference of two boundaries in short distance should be taken into consideration when analyzing the boundary effect.The research lays a foundation for the engineering design with more simplicity.

Key words: ellipsoidal head, large opening, nozzle, boundary effect

郭崇志陈文昕纪昌盛. 具有大开孔接管结构的椭圆封头边界效应[J]. 华南理工大学学报（自然科学版）, 2006, 34(4): 106-110.

Guo Chong-zhi Chen Wen-xin Ji Chang-sheng. Boundary Efect of Large Opening with Nozzle Structure on Ellipsoidal Head[J]. Journal of South China University of Technology (Natural Science Edition), 2006, 34(4): 106-110.