Tightening torque is one of the main factors that could affect the connection quality in threaded connections. On the basis of elastic mechanics and thick cylinder theory, this paper established a new analytical model based on the geometric parameters of thread tooth and the calculation method of tightening torque on P-110S threaded connections was also obtained by calculating the frictional torque on each threaded surface. In this paper, the friction coefficient on the real contact thread tooth was measured by the developed experimental equipment that could be used to simulate the contact of threaded surfaces approximately. By applying the new method on P-110S threaded connection and comparing the results obtained by analytical model with the true make-up torque in application, it could be found that the analytical model and the calculation method proposed in this paper are reasonable. The new method was also validated by using the finite element analysis method to the same sample. The new method proposed in this paper is practical and convenient because it can be applied to calculate the tightening torque just with geometric parameters and thread numbers, which is easier to implement in application.
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October 2011
Research Papers
Research on the Calculation Method of Tightening Torque on P-110S Threaded Connections
Shou-Jun Chen,
Shou-Jun Chen
School of Mechanical and Power Engineering,
e-mail: csj19850112@yahoo.com.cn
East China University of Science and Technology
, No. 130, Meilong Road, Xuhui District, Shanghai 200237, P. R. China
Search for other works by this author on:
Qi An,
Qi An
School of Mechanical and Power Engineering,
e-mail: anqi@ecust.edu.cn
East China University of Science and Technology
, No. 130, Meilong Road, Xuhui District, Shanghai 200237, P. R. China
Search for other works by this author on:
Yi Zhang,
Yi Zhang
Wuxi Seamless Oil Pipe Co., Ltd.
, Wuxi 214028, P. R. China
Search for other works by this author on:
Qiang Li
Qiang Li
School of Mechanical and Power Engineering,
East China University of Science and Technology
, No. 130, Meilong Road, Xuhui District, Shanghai 200237, P. R. China
Search for other works by this author on:
Shou-Jun Chen
School of Mechanical and Power Engineering,
East China University of Science and Technology
, No. 130, Meilong Road, Xuhui District, Shanghai 200237, P. R. Chinae-mail: csj19850112@yahoo.com.cn
Qi An
School of Mechanical and Power Engineering,
East China University of Science and Technology
, No. 130, Meilong Road, Xuhui District, Shanghai 200237, P. R. Chinae-mail: anqi@ecust.edu.cn
Yi Zhang
Wuxi Seamless Oil Pipe Co., Ltd.
, Wuxi 214028, P. R. China
Qiang Li
School of Mechanical and Power Engineering,
East China University of Science and Technology
, No. 130, Meilong Road, Xuhui District, Shanghai 200237, P. R. ChinaJ. Pressure Vessel Technol. Oct 2011, 133(5): 051207 (8 pages)
Published Online: July 14, 2011
Article history
Received:
April 28, 2010
Revised:
January 12, 2011
Online:
July 14, 2011
Published:
July 14, 2011
Citation
Chen, S., An, Q., Zhang, Y., and Li, Q. (July 14, 2011). "Research on the Calculation Method of Tightening Torque on P-110S Threaded Connections." ASME. J. Pressure Vessel Technol. October 2011; 133(5): 051207. https://doi.org/10.1115/1.4003464
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