Comparison analysis of premium connection's seal structure

被引：0
|
作者：
Wang J.-D. [1 ,2 ]
Feng Y.-R. [1 ,2 ]
Lin K. [1 ,2 ]
Qin C.-Y. [1 ,2 ]
Song Y.-P. [3 ]
机构：
[1] Tubler Goods Research of Center, CNOP
[2] Key Laboratory of Environment and Mechanical Behavior of OCTG
[3] Bao Steel
来源：
Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science) | 2010年 / 34卷 / 05期
关键词：
Contact length; Contact pressure; Finite element method; Physical test; Seal structure;
D O I：
10.3969/j.issn.1673-5005.2010.05.023
中图分类号：
学科分类号：
摘要：
The premium connection's seal structure of the casing is the key factor affecting the performance of sealing. The changes of contact length, contact pressure and penetration length along the primary sealing surface of two different main seal structure forms (the cone/cone and arc/cone) were analyzed by finite element method at make-up, tension, bending, internal pressure and tensile loading. The changing laws of different types of sealing surface with load capacity were given. The new seal principles were put forward. When the effective contact length of sealing contact surface exceeded 0.5 mm, the value of contact pressure minimum subtracted from maximum was 5.8 times internal pressure, and in range of effective contact pressure and length, contact surface plastic strain was controlled in the yield point's scope of strain, anti-galling and eliminating seal clearance were made. The test results agree well with the numerical simulation. The results show that the established model was proper and the used method was reasonable. The influence of the tensile load on the seal was significantly higher than bending load.
引用
收藏
页码：126 / 130
页数：4
相关论文
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