Mitigation of Torsional Vibrations in Drilling Systems using Adaptive Nonlinear Control System
S. Suba1, M.Dineshkumar D.Eee2

1S. Suba*, Assistant Professor, Department of Electrical and Electronics Engineering, College, Mahendrapuri, Mallasamudram, Namakkal.
2M. Dinesh Kumar D. Eee., Department of Electrical and Electronics Engineering, Mahendra Engineering College (Autonomous), Mahendrapuri, Mallasamudram, Namakkal.
Manuscript received on January 18, 2020. | Revised Manuscript received on January 22, 2020. | Manuscript published on February 10, 2020. | PP: 3317-3321 | Volume-9 Issue-4, February 2020. | Retrieval Number: D1876029420/2020©BEIESP | DOI: 10.35940/ijitee.D1876.029420
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Abstract: The reason for this work is to plan a robust yield feedback control way to deal with dispense with torque stick-slip vibrations in boring frameworks. Current industry controllers generally neglect to dispose of stick-slip vibrations, particularly when different torque flex modes assume a job in maniacal assault. In terms of build controller production, a real training string system performs a multi-level model work such as torque mechanics. The proposed controller design is artfully distorted at optimizing the stability with respect to the uncertainty of the nonlinear bit-rock interaction. Based on heroes and intentions. Besides, a closed loop strength examination of the nonlinear preparing string model is displayed. This controller structure system offers a few points of interest contrasted with existing controllers. To begin with, just surface estimations are utilized, barring the requirement for entire estimations underneath it. Second, multi-level training-string dynamics are effectively handled in ways to access state-training controllers. Third, stability is explicitly provided with respect to bit-rock contact uncertainty and closed-loop performance specifications include controller design. The results of the study report confirm that stick-slip vibrations are actually eliminated in realistic drilling scenarios using a controller designed to achieve this state-of control control. 
Keywords: Stick-slip Vibrations, Bit-rock, Drilling, Torsional, Adaptive Nonlinear System
Scope of the Article: System Integration