Reliability Analysis on Friction-Pressurized Drilling Rod of Rotary Drilling Rig


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For the reliability problems of drilling rod of rotary drilling rig that need to be resolved currently, the paper took the friction-pressurized drilling rod for example, firstly analysised the failure modes of drilling rod with the joint method of FTA-FMECA; then established the structural reliability model of drilling rod according to the dominant failure modes respectively, and solved the failure probability; finally, made recommendations of reliability improvement. In the paper, the calculation of failure probability was done with Monte-Carlo simulation method, and the accurate solution was obtained with Matlab program.



Materials Science Forum (Volumes 697-698)

Edited by:

Tian Huang, Dawei Zhang, Bin Lin, Anping Xu, Yanling Tian and Weiguo Gao




G.Q. Sun et al., "Reliability Analysis on Friction-Pressurized Drilling Rod of Rotary Drilling Rig", Materials Science Forum, Vols. 697-698, pp. 730-735, 2012

Online since:

September 2011




[1] Z.Y. Li, S.J. Jiao and F.X. Wu: Rotary Drilling Rog and the Construction Technology, (Publishing House of People's Communication, China 2010) (in Chinese).

[2] Z.W. Huang: Construction Machinery Vol. 8 (2010), p.60 (in Chinese).

[3] T. Zhang and M. Chen: Journal of Engineering Graphics No. 5 (2010), p.146 (in Chinese).

[4] M.C. Kim and P.H. Seong: Reliability Engineering and System Safety Vol. 78 (2002), p.239.

[5] R. Rackwitz: Struct. Sar Vol. 23 (2001), p.365.

[6] B.W. Lee and O.K. Lim: Comput. Struct Vol. 68 (1998), p.491.

[7] L.Y. Xie, Z. Wang and J.Y. Zhou: Basic Theory and Method for Mechanical Reliability (Publishing House of Science, China 2009) (in Chinese).

[8] J.G. Zhang, D. Su and Y.W. Liu: Reliability Analysis and Optimization of Mechanical Products (Publishing House of Electronics Industry, China 2008) (in Chinese).

[9] B.C. Wen: Machine design handbook (Publishing House of Machinery Industry, China 2010) (in Chinese).