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    Drill string nonlinear vibrations: Experimental studies and finite-element analysis

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    Date
    2018
    Author
    Kanzari M.
    Shahin I.M.
    Alqaradawi M.Y.
    Balachandran B.
    Metadata
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    Abstract
    In the present work, nonlinear vibrations of drill strings are studied. A laboratory scale arrangement consisting of a flexible rod with rotor-stator system is used to study the system dynamics. A finite-element model has been developed to study the system dynamics. Qualitative changes in the system dynamics are examined with respect to variation in the rotation speed, with a focus on whirling and stick-slip motions. The finite-element model results are compared with experimental results. It is believed that the developed finite-element model can be important for the design analysis of drill strings as well as understanding the system dynamics.
    DOI/handle
    http://dx.doi.org/10.1088/1742-6596/1075/1/012010
    http://hdl.handle.net/10576/13008
    Collections
    • Mechanical & Industrial Engineering [‎1499‎ items ]

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