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Journal Articles
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. April 2022, 144(2): 021801.
Paper No: OMAE-20-1017
Published Online: October 26, 2021
Journal Articles
Accepted Manuscript
Article Type: Research Papers
J. Offshore Mech. Arct. Eng.
Paper No: OMAE-21-1129
Published Online: October 26, 2021
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A sketch of a drill-string assembly confined in a borehole   A sketch of a ...
Published Online: October 26, 2021
Fig. 1 A sketch of a drill-string assembly confined in a borehole A sketch of a drill-string assembly confined in a borehole More
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First three natural frequencies and mode shapes fixed-free drill string in ...
Published Online: October 26, 2021
Fig. 4 First three natural frequencies and mode shapes fixed-free drill string in lateral, longitudinal, and torsional deformation. The nodes are marked with solid circles and antinodes with a cross. First three natural frequencies and mode shapes fixed-free drill string in lateral, longitudinal... More
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Bond graph model of the dynamic drill-string model   Bond graph model of th...
Published Online: October 26, 2021
Fig. 6 Bond graph model of the dynamic drill-string model Bond graph model of the dynamic drill-string model More
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Angular velocity at  z  = 0 and  z  =  L , and top-of-string torque  T   i ...
Published Online: October 26, 2021
Fig. 9 Angular velocity at z = 0 and z = L , and top-of-string torque T i ,0 . Subscript i denotes the four individual set-points. Angular velocity at z = 0 and z = L, and top-of-string torque Ti,0. Subscript i denotes the four individual set-points. More
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Drill-string center at  z  =  L , for  ω  sp  = 4 and 20 rad/s   Drill-stri...
Published Online: October 26, 2021
Fig. 10 Drill-string center at z = L , for ω sp = 4 and 20 rad/s Drill-string center at z = L, for ωsp = 4 and 20 rad/s More
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Model response for  n   q   = 18, 14, and 12, where  ω  0  and  ω   L   den...
Published Online: October 26, 2021
Fig. 11 Model response for n q = 18, 14, and 12, where ω 0 and ω L denote angular velocity at z = 0 and z = L , respectively, and u ex is the deformation in the x direction. Superscripts indicate the model number. Model response for nq = 18, 14, and 12, where ω0 and ωL d... More
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Drill-string sticking to the formation by friction from torque on bit. The ...
Published Online: October 26, 2021
Fig. 13 Drill-string sticking to the formation by friction from torque on bit. The notation sp indicates the angular velocity set-point. Drill-string sticking to the formation by friction from torque on bit. The notation sp indicates the angular velocity set-point. More
Journal Articles
Accepted Manuscript
Article Type: Research Papers
J. Offshore Mech. Arct. Eng.
Paper No: OMAE-21-1012
Published Online: October 19, 2021
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Schematic model of a circular rigid cylinder elastically mounted free to vi...
Published Online: October 13, 2021
Fig. 1 Schematic model of a circular rigid cylinder elastically mounted free to vibrate in 2DOF, adapted from Ref. [ 17 ] Schematic model of a circular rigid cylinder elastically mounted free to vibrate in 2DOF, adapted from Ref. [17] More
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( a ) Decomposition of the hydrodynamics forces acting on the cylinder in t...
Published Online: October 13, 2021
Fig. 2 ( a ) Decomposition of the hydrodynamics forces acting on the cylinder in the in-line and cross-flow directions and ( b ) decomposition of the relative flow velocity U in the in-line and cross-flow directions, adapted from Ref. [ 17 ] (a) Decomposition of the hydrodynamics forces acting... More
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Effects caused by changing the tuning parameter  ɛ  in the cross-flow ampli...
Published Online: October 13, 2021
Fig. 3 Effects caused by changing the tuning parameter ɛ in the cross-flow amplitude of the cylinder, A y * , and in the width of the lock-in range: ( a ) A = 8, κ = 5, ( b ) A = 8, κ = 5, ( c ) A = 20, κ = 5, and ( d ) A = 5, κ = 2 Effects caused by changing the tunin... More
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Effects caused by changing the tuning parameter  A  in the cross-flow ampli...
Published Online: October 13, 2021
Fig. 4 Effects caused by changing the tuning parameter A in the cross-flow amplitude of the cylinder, A y * , and in the width of the lock-in range: ( a ) ɛ = 0.08 and κ = 5, ( b ) ɛ = 0.8 and κ = 5, and ( c ) ɛ = 0.2 and κ = 2 Effects caused by changing the tuning paramet... More