Finite Element Analysis on the Influence of Back-Up Ring on the Sealing Effect of Rubber O-Ring

被引：3

作者：

Li, Dian Xin ^{[1
]}

Zhao, Hong Lin ^{[1
]}

Zhang, Shi Min ^{[1
]}

Wu, Chang Run ^{[2
]}

Liu, Xian Long ^{[3
]}

Zheng, Shan Jun ^{[3
]}

机构：

[1] China Univ Petr, Coll Mech & Transportat Engn, Beijing, Peoples R China

[2] Huabei Div China Petroleum Logging Co. Ltd, Renqiu, Peoples R China

[3] Daqing Oilfield Downhole Operation Branch Co, Daqing, Peoples R China

来源：

ADVANCES IN MECHANICAL DESIGN, PTS 1 AND 2 | 2011年 / 199-200卷

关键词：

Rubber O-Ring; Back-Up Ring; Sealing Effect; Stress Distribution; Finite Element Method;

D O I：

10.4028/www.scientific.net/AMR.199-200.1595

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on finite element analysis software ANSYS, the deformation and force condition of the rubber sealing o-ring pre and post with back-up ring under different oil pressure conditions was analyzed. The von mises stress distribution of the o-ring and the change of contact pressure between o-ring and sealing interface pre and post with back-up ring under different oil pressure conditions were discussed. The results show that, the maximum von mises stress of the o-ring is smaller and the maximum von mises stress of the sealing system concentrates on the left top and the right bottom of the back-up ring after using it; the o-ring will not be extruded into the gap of the groove because of the existence of back-up ring which prevents gap-bite and prolongs service life of the o-ring; the contact pressure between o-ring and sealing interface increased, thus the sealing reliability of the system increased.

引用

页码：1595 / +

页数：2

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