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Bit-bounce and stick-slip in drill-string dynamics
Conference ObjectAbstract: A recently proposed two degrees-of-freedom model for axial and torsional vibrations of drill-stringPalabras claves:Axial and torsional damping, delay differential equations, Drill-string dynamics, Stick-slipAutores:Marian Wiercigroch, Nandakumar K., Pearson C.Fuentes:scopusGalerkin projections for state-dependent delay differential equations with applications to drilling
ArticleAbstract: A Galerkin projection scheme to obtain low dimensional approximations of delay differential equationPalabras claves:Drill-strings, Galerkin projection, stability, State dependent delayAutores:Marian Wiercigroch, Nandakumar K.Fuentes:scopusStability analysis of a state dependent delayed, coupled two DOF model of drill-stringvibration
ArticleAbstract: Stick-slip and bit-bounce are dangerous dynamic phenomena encountered during rotary drilling of oil-Palabras claves:Autores:Marian Wiercigroch, Nandakumar K.Fuentes:scopus