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
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- Timoshenko S.P. Oscillations in engineering. Moscow, 1967.
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