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A. N. Fomenko
A. N. Fomenko
Saint Petersburg State Mining Institute (Technical University)
Saint Petersburg State Mining Institute (Technical University)
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Articles

Mining machine, electrical engineering and electromechanics
  • Date submitted
    2016-12-07
  • Date published
    2011-01-01

Swinging movement autoresonant electric drive with nonsymmetric excitation of dynamically counter-balanced drilling string on carrying cable

Article preview

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 .

How to cite:E. A. Zagrivnyi, A. N. Fomenko (2011) Swinging movement autoresonant electric drive with nonsymmetric excitation of dynamically counter-balanced drilling string on carrying cable. Journal of Mining Institute. Vol 189. p. 95.
Mining machine, electrical engineering and electromechanics
  • Date submitted
    2016-12-07
  • Date published
    2011-01-01

Simulation of swinging movement autoresonant electric drive with nonsymmetric excitation

Article preview

Mathematical and simulation models of drill bit oscillations. Method for calculating the model works elastic, electromagnetic and load torques has been developed. Simulation results of autoresonant regimes with asymmetric excitation oscillations of dynamically counter balanced drilling string on the cargo-carrying cable drill bit are represented.

How to cite:A. N. Fomenko (2011) Simulation of swinging movement autoresonant electric drive with nonsymmetric excitation. Journal of Mining Institute. Vol 189. p. 117.