Simulation of casing connection and optimization on end pitch of coupling

WU Diping; ZANG Yong; QIN Qin; GUAN Daxin

doi:10.13374/j.issn1001-053x.2005.01.027

Volume 27 Issue 1

Aug. 2021

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WU Diping, ZANG Yong, QIN Qin, GUAN Daxin. Simulation of casing connection and optimization on end pitch of coupling[J]. Chinese Journal of Engineering, 2005, 27(1): 105-108. doi: 10.13374/j.issn1001-053x.2005.01.027

Citation:

WU Diping, ZANG Yong, QIN Qin, GUAN Daxin. Simulation of casing connection and optimization on end pitch of coupling[J]. Chinese Journal of Engineering, 2005, 27(1): 105-108. doi: 10.13374/j.issn1001-053x.2005.01.027

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Simulation of casing connection and optimization on end pitch of coupling

doi: 10.13374/j.issn1001-053x.2005.01.027

1. Mechanical Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. Tianjin Municipal Seamless Steel Tube Plant, Tianjin 300220, China

Received Date: 2003-10-24
Rev Recd Date: 2003-12-11

Available Online: 2021-08-17

Abstract

Abstract

An axial symmetric FEM model is established for API 8 tooth round thread casing connection. The contact behavior and stress-strain distribution in the connection area are analyzed when the connection is screwed down by machine, especially under different end pitch values. Through investigating the effect of end pitch, it is proposed that the best pitch of the hoop should be 50-55°. This result has been successfully used in practice.
- casing connection,
- round thread,
- end pitch,
- FEM