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Sealability Analysis of Premium Connection with Cylinder/Sphere Sealing Structure Based on FEM
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[1]Zhu Qiang,Du Peng,Wang Jianjun,et al.Sealability Analysis of Premium Connection with Cylinder/Sphere Sealing Structure Based on FEM[J].Journal of Zhengzhou University (Engineering Science),2016,37(05):82-85,90.[doi:10.13705/j.issn.1671-6833.2016.05.016]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 37 Number of periods: 2016 05 Page number: 82-85,90 Column: Public date: 2016-11-25
Title:
Sealability Analysis of Premium Connection with Cylinder/Sphere Sealing Structure Based on FEM
Author(s):
Zhu Qiang1; Du Peng1; Wang Jianjun2; Qin Dongchen1
1. School of Mechanical Engineering, Zhengzhou University, Zhengzhou, Henan, 450001; 2. Petroleum Pipe Engineering Key Laboratory of Petroleum Pipe Engineering Technology Research Institute, China National Petroleum Corporation, Xi’an, Shaanxi, 710077
Keywords:
premium connection; cylinder/sphere structure; contact pressure; finite element method(FEM)
CLC:
-
DOI:
10.13705/j.issn.1671-6833.2016.05.016
Abstract:
Using ANSYS to establish an axisymmetric model of the casing joint, focusing on the analysis of the sealing performance of a special threaded casing joint cylindrical/spherical sealing structure, respectively for the three working conditions (machine-tight, machine-tight+tension, machine-tight+internal) The distribution law of the contact pressure and equivalent stress of the sealing end is obtained, and the contact pressure and equivalent stress of the sealing end under different working conditions are compared and analyzed, revealing that the tensile load and the internal pressure of the casing have an impact on the structure. The impact of sealing performance. The results show that the contact pressure and equivalent stress of the cylindrical/spherical sealing structure meet the sealing requirements, which provides theoretical guidance for the further optimization design of special threaded casing joints.
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