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1 ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes

1 2013

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Influence of some speed parameters on the dynamics of nonlinear flexural vibrations of a drill column

Pukach P., Kuzio I., Nytrebych Z.

ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes

2013

Vol. 2, No 4

61-66

We investigate the influence of the motion of fluid flushing the cutter of a well drilling column, and the angular rotational velocity upon dynamic characteristics of its flexural vibrations. We take into account the nonlinear elastic features of column material. As a base of the research we took the Galerkin method and the Van der Pol method. Combining those two methods made possible to obtain the relations describing the main parameters of the dynamical process In both nonresonance and resonance case.