Dynamics of vibro-impact drilling with linear and nonlinear rock models

Maolin Liao*, Yang Liu, Joseph Páez Chávez, Antonio S.E. Chong, Marian Wiercigroch

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper presents a comprehensive numerical study of a higher order drifting oscillator that has been used to model vibro-impact drilling dynamics in previous publications by our research group [1,2,3,4,5,6,7,8,9]. We focus on the study of the bit-rock interactions, for which both linear and nonlinear models of the drilled medium are considered. Our investigation employed a numerical approach based on direct numerical integration via a newly developed MATLAB-based computational tool, ABESPOL (Chong et al., 2017) [10], and based on path-following methods implemented via a software package for continuation and bifurcation analysis, COCO (Continuation Core) (Dankowicz and Schilder, 2013) [11]. The analysis considered the excitation frequency, amplitude of excitation and the static force as the main control parameters, while the rate of penetration (ROP) was chosen as the main system output so as to assess the performance of the system when linear and nonlinear bit-rock impact models are used. Furthermore, our numerical investigation reveals a rich system dynamics, owing to the presence of codimension-one bifurcations of limit cycles that influence the system behaviour dramatically, as well as multistability phenomenon and chaotic motion.

Original languageEnglish
Pages (from-to)200-210
Number of pages11
JournalInternational Journal of Mechanical Sciences
Volume146-147
Early online date1 Aug 2018
DOIs
Publication statusPublished - 30 Oct 2018

Fingerprint

drilling
Drilling
Rocks
rocks
Core analysis
linear systems
nonlinear systems
numerical integration
Software packages
MATLAB
excitation
Dynamical systems
penetration
oscillators
computer programs
cycles
output
interactions

Keywords

  • ABESPOL
  • Bit-rock interaction
  • COCO
  • Nonsmooth dynamical system
  • Vibro-impact drilling

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Dynamics of vibro-impact drilling with linear and nonlinear rock models. / Liao, Maolin; Liu, Yang; Páez Chávez, Joseph; Chong, Antonio S.E.; Wiercigroch, Marian.

In: International Journal of Mechanical Sciences, Vol. 146-147, 30.10.2018, p. 200-210.

Research output: Contribution to journalArticle

Liao, Maolin ; Liu, Yang ; Páez Chávez, Joseph ; Chong, Antonio S.E. ; Wiercigroch, Marian. / Dynamics of vibro-impact drilling with linear and nonlinear rock models. In: International Journal of Mechanical Sciences. 2018 ; Vol. 146-147. pp. 200-210.
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