• DocumentCode
    1737174
  • Title

    Simple model of whirl

  • Author

    Kovalyshen, Yevhen

  • Author_Institution
    Earth Sci. & Resource Eng., Drilling Mech. Group, CSIRO, Kensington, WA, Australia
  • fYear
    2011
  • Firstpage
    509
  • Lastpage
    514
  • Abstract
    A simple analytical model of bit whirl is presented. The model takes into account the history-dependent boundary conditions at the bit-rock interface. We show that the geometry of the bit can be lumped into only three parameters. Depending on the value of these parameters the system can be stable or undergo forward or backward whirl.
  • Keywords
    drilling (geotechnical); geometry; mechanical stability; rocks; vibrations; backward whirl; bit geometry; bit whirl; bit-rock interface; forward whirl; history dependent boundary conditions; Asymptotic stability; Blades; Equations; Force; Geometry; Mathematical model; Stability analysis;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Control Applications (CCA), 2011 IEEE International Conference on
  • Conference_Location
    Denver, CO
  • Print_ISBN
    978-1-4577-1062-9
  • Electronic_ISBN
    978-1-4577-1061-2
  • Type

    conf

  • DOI
    10.1109/CCA.2011.6044459
  • Filename
    6044459
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1737174