Stability Analysis of Drill Rods as Shells in the Gas Stream

Askhat Kudaibergenov; Askar Kudaibergenov; Lelya Khajiyeva

doi:10.4028/www.scientific.net/AMM.665.593

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 665Stability Analysis of Drill Rods as Shells in the...

Stability Analysis of Drill Rods as Shells in the Gas Stream

Abstract:

In the paper steadiness of the compressed and twisted drill rod is examined. The rod is presented in the form of a circular cylindrical shell, which is circulated from the outer side by a supersonic stream of gas. The rod is affected by the uniformly distributed on its length axial force and the torque. The problem of stability is solved by means of reviewing of a small deviation from the periodic solution of the problem. Boundaries of instability zones of the mechanical system are defined with application of the method of harmonic balance.

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Periodical:

Applied Mechanics and Materials (Volume 665)

Pages:

593-596

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.665.593

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Online since:

October 2014

Authors:

Askhat Kudaibergenov, Askar Kudaibergenov, Lelya Khajiyeva*

Keywords:

Drill Rod, Gas Stream, Instability Zones, Method of Harmonic Balance, Resonance, Shell

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References

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DOI: 10.1016/0020-7462(68)90022-x

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