Suppression of drill-string stick-slip vibration

Vahid Vaziri*, Marcin Kapitaniak, Marian Wiercigroch

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
11 Downloads (Pure)


We investigate experimentally and numerically suppression of drill-string torsional vibration while drilling by using a sliding mode control. The experiments are conducted on the novel experimental drilling rig developed at the University of Aberdeen [1] and using PDC commercial drill-bits and real rock-samples. A mathematical model of the experimental setup which takes into account the dynamics of the drill-string and the driving motor, is proposed. Then a sliding mode control method is employed to suppress stick-slip oscillations. The experimental and numerical results considering a time delay of the actuator are in a close agreement. Stick-slip vibration is eliminated and significant reduction in vibration amplitude has been observed when using the controller.

Original languageEnglish
Article number16008
JournalMATEC Web of Conferences
Publication statusPublished - 2 Feb 2018
EventInternational Conference on Engineering Vibration - Sofia, Bulgaria
Duration: 4 Sept 20177 Sept 2017


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