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Complex dynamics of drill-strings: Theory and experiments
Conference ObjectAbstract: We investigate complex drill-string dynamics in a downhole drilling where strong nonlinear interactiPalabras claves:Autores:Kapitaniak M., Marian Wiercigroch, Nandakumar K., Vaziri V.Fuentes:scopusBifurcation scenarios in helical buckling of slender rods using new FE
ArticleAbstract: We develop a new Finite Element to accurately model twisting of rods and capture the bifurcation scePalabras claves:Bifurcations, finite element, Helical buckling, Post-buckling configurations, Twisted rodsAutores:Kapitaniak M., Marian Wiercigroch, Vaziri V.Fuentes:scopusCalibrated FEM modelling of rock cutting with PDC cutter
Conference ObjectAbstract: Complexity of bit-rock interactions and formation fracture makes rock drilling a challenging task frPalabras claves:Autores:Kapitaniak M., Ma L., Marian Wiercigroch, Vaziri V., Yari N.Fuentes:scopusFinite element analysis of drill pipe-slip system
ArticleAbstract: As an important tool for tripping of a drill-string, a drill-pipe (DP)-slip system directly affectsPalabras claves:Drill-pipe, finite element analysis, Friction, Slip insert, Stress distributionAutores:Guo B., Kapitaniak M., Marian Wiercigroch, Tang L., Vaziri V.Fuentes:scopusNonlinear dynamics of lump mass model of drill-string in horizontal well
ArticleAbstract: We develop a dynamic model of a drill-string in a horizontal well having six Degrees-Of-Freedom, whiPalabras claves:Complex whirling, Coupled motions, Drill-string dynamics, Horizontal well, State-dependent delayAutores:Huang Z., Kapitaniak M., Ma Y., Marian Wiercigroch, Vaziri V., Xie D.Fuentes:scopusHelical buckling of drill-strings
Conference ObjectAbstract: This paper presents experimental and numerical investigations of the complex drill-string vibration,Palabras claves:Autores:Kapitaniak M., Marian Wiercigroch, Vaziri V.Fuentes:scopusHelical buckling of thin rods: FE modelling
Conference ObjectAbstract: In this paper, we utilize the Finite Element (FE) method to model twisting of long thin rods and capPalabras claves:Autores:Kapitaniak M., Marian Wiercigroch, Vaziri V.Fuentes:scopusUnveiling complexity of drill-string vibrations: Experiments and modelling
ArticleAbstract: We investigate complex drill-string dynamics on a novel experimental rig [1], capable of reproducingPalabras claves:Bit-rock interaction, Drill-string dynamics, experimental studies, Finite element modelling, Nonlinear oscillations, Stick-slipAutores:Joseph Páez Chávez, Kapitaniak M., Marian Wiercigroch, Nandakumar K., Vaziri V.Fuentes:googlescopusVersatile mass excited impact oscillator
ArticleAbstract: This paper presents the design and the initial experimental results of a novel impact oscillator rigPalabras claves:design, experiments, impacts, nonlinear dynamics, Oscillator, vibrationAutores:Costa D., Kapitaniak M., Kovacs S., Marian Wiercigroch, Pavlovskaia E.E., Vaziri V., Zhong S.Fuentes:scopusState Dependent Delayed Drill-string Vibration: Theory, Experiments and New Model
Conference ObjectAbstract: We have reviewed the development and the analysis of the coupled two degrees-of-freedom model of driPalabras claves:Drill-string, experiments, modelling, State dependent delay, vibrationAutores:Kapitaniak M., Marian Wiercigroch, Nandakumar K., Pei L., Vaziri V.Fuentes:scopus