引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览次   下载 本文二维码信息
码上扫一扫!
分享到: 微信 更多
海底管道中泡沫清管器接触应力有限元分析
曹宇光,魏云港,田宏军,刘畅
(中国石油大学(华东)山东省油气储运安全重点实验室,山东青岛 266580)
摘要:
为分析清管器在海底管道中的清洁能力,以泡沫清管器为研究对象,基于有限元软件ANSYS建立清管器与管道的3维模型,进行数值模拟,并通过与理论解析解对比以验证模型准确性。在此基础上,从清管器接触应力分布出发,对泡沫密度、管道椭圆度、清管器过盈量、管壁摩擦等影响因素进行研究。结果表明:清管器在无损的均匀直管内接触应力均匀分布、在椭圆管道内则呈“8”字型不均匀分布;接触应力随清管器过盈量的增大而增大,但过盈量对清管器表面接触应力分布形式无影响;管壁摩擦使得清管器表面轴向接触应力分布不均匀,且接触应力随摩擦系数增大而指数增大;清管器密度只影响接触应力大小,对接触应力的分布规律无影响。
关键词:  海底管道  泡沫清管器  接触应力  数值模拟
DOI:10.3969/j.issn.1673-5005.2019.06.013
分类号::TE 832
文献标识码:A
基金项目:国家自然科学基金项目(11472309);国家重点研发计划项目(2016YFC0802306);中国石油大学(华东)研究生创新工程项目(YCX2018069) 
Finite element analysis of contact stress of foam pig in submarine pipeline
CAO Yuguang, WEI Yungang, TIAN Hongjun, LIU Chang
(Shandong Province Key Laboratory of Safety of Oil & Gas Storage and Transportation in China University of Petroleum (East China), Qingdao 266580, China)
Abstract:
In order to analyze the cleaning ability of the pig in the submarine pipeline, the foam pig was taken as the research object, and the 3D models of the pig and pipeline were established based on the finite element software ANSYS. The accuracy of the model was verified by comparing with the theoretical analytical solution. Based on this analysis, starting from the contact stress distribution of the pig, the factors such as the density of the foam, the ovality of the pipe, the magnitude of the interference and the friction of the pipe wall were studied. The results show that the contact stress is uniformly distributed in the nondestructive homogeneous straight pipe, but it is not uniformly distributed in the elliptical pipe shaped by the character "8". The contact stress increases with the increase of the magnitude of the interference, but the magnitude of the interference has no effect on the distribution form of the contact stress on the pig. The friction of the pipe wall makes the distribution of the axial contact stress on the surface of pig nonuniform, and the contact stress increases exponentially with the increase of the friction coefficient. Moreover, the density of the pig only affects the magnitude of the contact stress, but it has no effect on the distribution law of the contact stress.
Key words:  submarine pipeline  foam pig  contact stress  numerical simulation
版权所有 中国石油大学学报(自然科学版)编辑部 Copyright©2008 All Rights Reserved
主管单位:中华人民共和国教育部 主办单位:中国石油大学
地址: 青岛市黄岛区长江西路66号中国石油大学期刊社 邮编:266580 电话:0532-86983496 E-mail: journal@upc.edu.cn
本系统由:北京勤云科技发展有限公司设计