• Hybrid fuzzy sliding mode for stick-slip suppression in drill string systems 

      Krama, Abdelbasset; Gharib, Mohamed; Refaat, Shady S.; Sassi, Sadok ( Korean Society of Mechanical Engineers , 2022 , Article)
      Stick-slip vibration is one of the main factors that contribute greatly to reducing the service life of drill string equipment and decreasing the efficiency of the overall drilling system. Thus, it would be very desirable ...