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Analysis of Nonlinear Vibration of Hard Coating Thin Plate by Finite Element Iteration Method
Shock and Vibration, Volume 2014, Issue 1, 2014., 2014 This paper studies nonlinear vibration mechanism of hard coating thin plate based on macroscopic vibration theory and proposes finite element iteration method (FEIM) to theoretically calculate its nature frequency and vibration response. First of all, strain dependent mechanical property of hard coating is briefly introduced and polynomial method is ...
Hui Li +3 more
wiley +1 more source
Impact Force Magnitude Analysis of an Impact Pendulum Suspended in a Vibrating Structure
Shock and Vibration, Volume 19, Issue 6, Page 1359-1372, 2012., 2012 The purpose of this work is the experimental investigation and the mathematical modeling of the impact force behavior in a vibro‐impact system, where an impact pendulum is mounted on a cart that moves with a prescribed displacement. The dynamics of the system will be evaluated considering different excitation frequencies and changing the impact gap ...
R.R. Aguiar, H.I. Weber
wiley +1 more source
Incipient Regimes of Drill Bit Whirlings on Uneven Bottoms of Deep Bore-Holes [PDF]
, 2016 This paper studies the problem of whirl vibrations of rotating drill string bit under conditions of its contact interaction with the bore-hole bottom surface.
Glazunov, Sergiy M. +2 more
core +1 more source
Dynamic analysis of the longitudinal vibration on bottom drilling tools [PDF]
, 2020 With extreme complexity, the drilling process is a dynamic process which is severely influenced by longitudinal vibration. Longitudinal vibration, as one of the most important reason, is directly generated by the fatigue failure of the bottom hole ...
Chunxu Yang +3 more
core +2 more sources
, 2009 In the oil and gas industry, an underreamer is a tool used to extend and enlarge the diameter of a previously-drilled bore. The problem proposed to the Study Group is to obtain appropriate mathematical models of underreamer dynamics, in forms that will ...
Barton, David +8 more
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Finite Element Analysis of Drillstring Lateral Vibration [PDF]
Journal of Engineering and Applied Sciences, 2011 Lateral vibration is recognized as the leading cause of drillstring and bottom hole assembly (BHA) failures, shocks and severe damages to borehole wall. This study presents a finite element model using ANSYS software to investigate the drillstring lateral vibrations in slightly deviated wells. The analysis proceeds in two stages.
Jamal Zare +2 more
openaire +1 more source
Asynchronous partial contact motion due to internal resonance in multiple degree-of-freedom rotordynamics [PDF]
, 2016 Sudden onset of violent chattering or whirling rotorstator contact motion in rotational machines can cause significant damage in many industrial applications.
Champneys, A. R. +2 more
core +2 more sources
Analysis of the effects of torsional impact tools on drill string stick–slip vibration
Energy Exploration & ExploitationTorsional impactor is widely used in deep and ultra-deep wells because it can suppress stick–slip vibration and increase ROP. As the direct factor affecting torsional impactor effect, it's working parameters study is still not sufficient.
Chaoyi She +5 more
doaj +1 more source
Suppression of Drill-String Stick-Slip Vibration
MATEC Web of Conferences, 2018 We investigate experimentally and numerically suppression of drill-string torsional vibration while drilling by using a sliding mode control. The experiments are conducted on the novel experimental drilling rig developed at the University of Aberdeen [1]
Vaziri Vahid +2 more
doaj +1 more source
Instability regimes and self-excited vibrations in deep drilling systems [PDF]
, 2013 peer ...
Depouhon, Alexandre, Detournay, Emmanuel
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