Swinging movement autoresonant electric drive with nonsymmetric excitation of dynamically counter-balanced drilling string on carrying cable
About authors
- 1 — Ph.D., Dr.Sci. professor Saint Petersburg State Mining Institute (Technical University)
- 2 — post-graduate student Saint Petersburg State Mining Institute (Technical University)
Abstract
Considered nonsymmetric mode of drill bit oscillations when forming a unipolar electromagnetic torque on each cycle oscillations of dynamically balanced drill. Developed a method for estimating speed of rotation drill around its axis when working in the nonsymmetric mode at first approximation.
Область исследования:
(Archived) Mining machine, electrical engineering and electromechanics
Keywords:
electric drive
autoresonance
drilling string
oscillations
method
viscous friction
work
damping factor
Funding:
None
References
- A.с. № 1716067. Drilling string / N.I.Vasiliev, P.G.Talalay, V.K.Chistyakov. 1992. Bull. № 8.
- Weasel electromechanical drill. Patent of Russian Federation, № 2337225 / E.A.Zagrivny, V.V.Rudakov, S.S.Staroded, Y.A.Gavrilov. 27.10.2008.
- Staroded S.S. Weasel electromechanical drill on cargo carrying cable for bottom zones of oil wells cleaning / S.S.Staroded, E.A.Zagrivny // The Proceedings of the Mining Institute. Saint Petersburg. 2007. V.173.
- Timoshenko S.P. Oscillations in engineering. Moscow, 1967.
- Weasel electromechanical drill. RF patent for utility model № 2009146092 / E.A.Zagrivny, A.Н.Fomenko, V.V.Ivanik. 11.12.2009.
- Fomenko A.N. Resonant electric drive of dynamically counterbalanced drilling string on carrying cable with swinging movement. «Challenges and solutions in mineral industry», 2009.
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