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1

Axial and torsional self-excited vibrations of a distributed drill-string

Aarsnes, Ulf Jakob F., van de Wouw, Nathan

Journal:

Journal of Sound and Vibration

Year:

2019

Language:

english

File:

PDF, 3.44 MB

english, 2019

2

Dynamics of a distributed drill string system: Characteristic parameters and stability maps

Aarsnes, Ulf Jakob F., van de Wouw, Nathan

Journal:

Journal of Sound and Vibration

Year:

2018

Language:

english

File:

PDF, 6.27 MB

english, 2018

3

Linear stability analysis of self-excited vibrations in drilling using an infinite dimensional model

Aarsnes, Ulf Jakob F., Aamo, Ole Morten

Journal:

Journal of Sound and Vibration

Year:

2016

Language:

english

File:

PDF, 1.47 MB

english, 2016

4

Real-time estimation of reservoir influx rate and pore pressure using a simplified transient two-phase flow model

Ambrus, Adrian, Aarsnes, Ulf Jakob Flø, Karimi Vajargah, Ali, Akbari, Babak, van Oort, Eric, Aamo, Ole Morten

Journal:

Journal of Natural Gas Science and Engineering

Year:

2016

Language:

english

File:

PDF, 1.83 MB

english, 2016

5

Effect of shock subs on self-excited vibrations in drilling systems

Aarsnes, Ulf Jakob F., van de Wouw, Nathan

Journal:

Journal of Petroleum Science and Engineering

Year:

2019

Language:

english

File:

PDF, 3.11 MB

english, 2019

6

Wave impact on a horizontal elastic plate

Odd M. Faltinsen, Jan Kvålsvold, Jan V. Aarsnes

Journal:

Journal of Marine Science and Technology

Year:

1997

Language:

english

File:

PDF, 1.13 MB

english, 1997

7

A distributed parameter systems view of control problems in drilling

Di Meglio, F., Aarsnes, U.J.F.

Journal:

IFAC-PapersOnLine

Year:

2015

Language:

english

File:

PDF, 1.85 MB

english, 2015

8

Modeling and Avoidance of Heave-Induced Resonances in Offshore Drilling

Aarsnes, Ulf Jakob Flø, Gleditsch, Martin Standal, Aamo, Ole Morten, Pavlov, Alexey

Journal:

SPE Drilling & Completion

Year:

2014

Language:

english

File:

PDF, 1.23 MB

english, 2014

9

[International Petroleum Technology Conference International Petroleum Technology Conference - Doha, Qatar (2015-12-06)] International Petroleum Technology Conference - A Simplified Transient Multi-Phase Model for Automated Well Control Applications

Ambrus, Adrian, Aarsnes, Ulf Jakob Flø, Vajargah, Ali Karimi, Akbari, Babak, Oort, Eric van

Language:

english

File:

PDF, 2.11 MB

english

10

Review of two-phase flow models for control and estimation

Aarsnes, Ulf Jakob F., Flåtten, Tore, Aamo, Ole Morten

Journal:

Annual Reviews in Control

Year:

2016

Language:

english

File:

PDF, 1.45 MB

english, 2016

11

[ASME ASME 2015 Dynamic Systems and Control Conference - Columbus, Ohio, USA (Wednesday 28 October 2015)] Volume 2: Diagnostics and Detection; Drilling; Dynamics and Control of Wind Energy Systems; Energy Harvesting; Estimation and Identification; Flexible and Smart Structure Control; Fuels Cells/Energy Storage; Human Robot Interaction; HVAC Building Energy Management; Industrial Applications; Intelligent Transportation Systems; Manufacturing; Mechatronics; Modelling and Validation; Motion and Vibration Control Applications - A Simplified Gas-Liquid Flow Model for Kick Mitigation and Control During Drilling Operations

Aarsnes, Ulf Jakob F., Ambrus, Adrian, Karimi Vajargah, Ali, Aamo, Ole Morten, van Oort, Eric

Year:

2015

Language:

english

File:

PDF, 1.69 MB

english, 2015

12

Delay-robust control design for heterodirectional linear coupled hyperbolic PDEs

Auriol, Jean, Aarsnes, Ulf Jakob Fl, Martin, Philippe, Di Meglio, Florent

Journal:

IEEE Transactions on Automatic Control

Year:

2018

Language:

english

File:

PDF, 331 KB

english, 2018

13

[ASME ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering - Honolulu, Hawaii, USA (May 31–June 5, 2009)] Volume 5: Polar and Arctic Sciences and Technology; CFD and VIV - A Moored Arctic Floater in First-Year Sea Ice Ridges

Dalane, Oddgeir, Aksnes, Vegard, Lo̸set, Sveinung, Aarsnes, Jan Vidar

Year:

2009

Language:

english

File:

PDF, 715 KB

english, 2009

14

[Society of Petroleum Engineers SPE/IADC International Drilling Conference and Exhibition - The Hague, The Netherlands (2019-03-04)] SPE/IADC International Drilling Conference and Exhibition - Creating Open Source Models, Test Cases, and Data for Oilfield Drilling Challenges

Pastusek, Paul, Payette, Greg, Shor, Roman, Cayeux, Eric, Aarsnes, Ulf Jakob, Hedengren, John, Menand, Stéphane, Macpherson, John, Gandikota, Raju, Behounek, Michael, Harmer, Richard, Detournay, Emman

File:

PDF, 2.83 MB

15

Estimating friction factors while drilling

Aarsnes, Ulf Jakob F., Auriol, Jean, Di Meglio, Florent, Shor, Roman J.

Journal:

Journal of Petroleum Science and Engineering

Year:

2019

Language:

english

File:

PDF, 3.60 MB

english, 2019

16

[IEEE 2019 American Control Conference (ACC) - Philadelphia, PA, USA (2019.7.10-2019.7.12)] 2019 American Control Conference (ACC) - Delay robust control design of under-actuated PDE-ODE-PDE systems

Aarsnes, Ulf Jakob F., Vazquez, Rafael, Di Meglio, Florent, Krstic, Miroslav

Year:

2019

Language:

english

File:

PDF, 367 KB

english, 2019

17

Robust output feedback stabilization of an ODEâPDEâODE interconnection

Di Meglio, Florent, Lamare, Pierre-Olivier, Aarsnes, Ulf Jakob F.

Journal:

Year:

2020

File:

PDF, 819 KB

2020

18

Robust Control Design of Underactuated 2 Ã 2 PDE-ODE-PDE Systems

Auriol, Jean, Aarsnes, Ulf Jakob F., Meglio, Florent Di, Shor, Roman

Journal:

IEEE Control Systems Letters

Year:

2021

File:

PDF, 604 KB

2021

19

Variations in the high latitude proton trapping boundary associated with polar magnetic substorms

H.R. Lindalen, F. Søraas, K. Aarsnes, R. Amundsen

Journal:

Planetary and Space Science

Year:

1971

Language:

english

File:

PDF, 829 KB

english, 1971

20

North/south asymmetric entry of solar protons during the November 18, 1968 event

K. Aarsnes, R. Amundsen

Journal:

Planetary and Space Science

Year:

1972

Language:

english

File:

PDF, 537 KB

english, 1972

21

Polar 5—an electron accelerator experiment within an aurora. 1. Instrumentation and geophysical conditions

B.N. Maehlum, K. Måseide, K. Aarsnes, A. Egeland, B. Grandal, J. Holtet, T.A. Jacobsen, N.C. Maynard, F. Søraas, J. Stadsnes, E.V. Thrane, J. Trøim

Journal:

Planetary and Space Science

Year:

1980

Language:

english

File:

PDF, 2.50 MB

english, 1980

22

Optical and magnetic pulsations

S. Åsheim, K. Aarsnes

Journal:

Planetary and Space Science

Year:

1984

Language:

english

File:

PDF, 872 KB

english, 1984

23

Evidence for particle injection as the cause of Dst reduction during HILDCAA events

F. Søraas, K. Aarsnes, K. Oksavik, M.I. Sandanger, D.S. Evans, M.S. Greer

Journal:

Journal of Atmospheric and Solar-Terrestrial Physics

Year:

2004

Language:

english

File:

PDF, 278 KB

english, 2004

24

Relativistic electron losses related to EMIC waves during CIR and CME storms

M.I. Sandanger, F. Søraas, M. Sørbø, K. Aarsnes, K. Oksavik, D.S. Evans

Journal:

Journal of Atmospheric and Solar-Terrestrial Physics

Year:

2009

Language:

english

File:

PDF, 2.20 MB

english, 2009

25

Numerical and experimental studies of a floating and liquid-filled membrane structure in waves

Rong Zhao, Jan Vidar Aarsnes

Journal:

Ocean Engineering

Year:

1998

Language:

english

File:

PDF, 167 KB

english, 1998

26

X-ray imaging of the aurora

J. Stadsnes, K. Aarsnes, J. Bjordal

Journal:

Advances in Space Research

Year:

1997

Language:

english

File:

PDF, 1.21 MB

english, 1997

27

Doppler-shifted auroralHemission: a comparison between observations and calculations

F. Søraas, K. Måseide, P. Torheim, K. Aarsnes

Journal:

Annales Geophysicae

Year:

1994

Language:

english

File:

PDF, 72 KB

english, 1994

28

Simultaneous measurements of X-rays and electrons during a pulsating aurora

N. Østgaard, J. Stadsnes, K. Aarsnes, F. Søraas, K. Måseide, M. Smith, J. Sharber

Journal:

Annales Geophysicae

Year:

1998

Language:

english

File:

PDF, 921 KB

english, 1998

29

Substorm morphology of > 100 keV protons

J.Å. Lundblad, F. Søraas, K. Aarsnes

Journal:

Planetary and Space Science

Year:

1979

Language:

english

File:

PDF, 2.15 MB

english, 1979

30

Application of Bragg grating sensors in the characterization of scaled marine vehicle models

Hjelme, D. R., Bjerkan, L., Neegard, S., Rambech, J. S., Aarsnes, J. V.

Journal:

Year:

1997

Language:

english

File:

PDF, 362 KB

english, 1997

31

Electron density and electron flux in a glow aurora

D.A Bryant, G.M Courtier, G Skovli, H.R Lindalen, K Aarsnes, K Måseide

Journal:

Journal of Atmospheric and Terrestrial Physics

Year:

1970

Language:

english

File:

PDF, 737 KB

english, 1970

32

Particle and auroral observations from the ESRO I/AURORAE satellite

C.S. Deehr, A. Egeland, K. Aarsnes, R. Amundsen, H.R. Lindalen, F. Söraas, R. Dalziel, P.A. Smith, G.R. Thomas, P. Stauning, H. Borg, G. Gustafsson, L.A. Holmgren, W. Riedler, J. Raitt, G. Skovli, T.

Journal:

Journal of Atmospheric and Terrestrial Physics

Year:

1973

Language:

english

File:

PDF, 2.58 MB

english, 1973

33

High latitude electron and proton precipitation at different local times and magnetic activity

T Wedde, G Skovli, R Amundsen, K Aarsnes, H.R Lindalen, F Söraas

Journal:

Journal of Atmospheric and Terrestrial Physics

Year:

1973

Language:

english

File:

PDF, 864 KB

english, 1973

34

Enhanced pitch angle scattering of protons at mid-latitudes during geomagnetic storms

F. Søraas, K. Aarsnes, J.Å. Lundblad, D.S. Evans

Journal:

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science

Year:

1999

Language:

english

File:

PDF, 632 KB

english, 1999

35

Observations of ENA in and near a proton arc

Søraas, Finn, Aarsnes, Kjell

Journal:

Geophysical Research Letters

Year:

1996

Language:

english

File:

PDF, 479 KB

english, 1996

36

Latitude distribution of vertically precipitating energetic neutral atoms observed at low altitudes

Sørbø, M., Søraas, F., Aarsnes, K., Oksavik, K., Evans, D. S.

Journal:

Geophysical Research Letters

Year:

2006

Language:

english

File:

PDF, 317 KB

english, 2006

37

Loss of relativistic electrons: Evidence for pitch angle scattering by electromagnetic ion cyclotron waves excited by unstable ring current protons

Sandanger, M., Søraas, F., Aarsnes, K., Oksavik, K., Evans, D. S.

Journal:

Journal of Geophysical Research

Year:

2007

Language:

english

File:

PDF, 598 KB

english, 2007

38

Pitch-angle distributions of 100- to 300-kev protons measured by the Esro IB satellite

Amundsen, R., Søraas, F., Lindalen, H. R., Aarsnes, K.

Journal:

Journal of Geophysical Research

Year:

1972

Language:

english

File:

PDF, 706 KB

english, 1972

39

Cleft signature in proton fluxes above 100 keV

Amundsen, R., Søraas, F., Aarsnes, K.

Journal:

Journal of Geophysical Research

Year:

1975

Language:

english

File:

PDF, 535 KB

english, 1975

40

[ASME ASME 2014 Dynamic Systems and Control Conference - San Antonio, Texas, USA (Wednesday 22 October 2014)] Volume 3: Industrial Applications; Modeling for Oil and Gas, Control and Validation, Estimation, and Control of Automotive Systems; Multi-Agent and Networked Systems; Control System Design; Physical Human-Robot Interaction; Rehabilitation Robotics; Sensing and Actuation for Control; Biomedical Systems; Time Delay Systems and Stability; Unmanned Ground and Surface Robotics; Vehicle Motion Controls; Vibration Analysis and Isolation; Vibration and Control for Energy Harvesting; Wind Energy - Control-Oriented Drift-Flux Modeling of Single and Two-Phase Flow for Drilling

Aarsnes, Ulf Jakob F., Di Meglio, Florent, Evje, Steinar, Aamo, Ole Morten

Year:

2014

Language:

english

File:

PDF, 1.45 MB

english, 2014

41

[ASME ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering - Shanghai, China (June 6–11, 2010)] 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 4 - Effects of Hydrostatic Nonlinearity on Motions of Floating Structures

Cao, Yusong, Tahchiev, Galin, Zhang, Fuwei, Aarsnes, Jan V., Glomnes, Einar B.

Year:

2010

Language:

english

File:

PDF, 1.09 MB

english, 2010

42

[ASME ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering - San Francisco, California, USA (Sunday 8 June 2014)] Volume 4A: Structures, Safety and Reliability - Fatigue Design Methodology for Large Mooring Chains Subjected to Out-of-Plane Bending

Lassen, Tom, Aarsnes, Jan, Glomnes, Einar

Year:

2014

Language:

english

File:

PDF, 1.83 MB

english, 2014

43

Estimation of States and Parameters of a Drift-Flux Model with Unscented Kalman Filter

Nikoofard, Amirhossein, Aarsnes, Ulf Jakob F., Johansen, Tor Arne, Kaasa, Glenn-Ole

Journal:

IFAC-PapersOnLine

Year:

2015

Language:

english

File:

PDF, 757 KB

english, 2015

44

A simplified two-phase flow model using a quasi-equilibrium momentum balance

Aarsnes, Ulf Jakob F., Ambrus, Adrian, Di Meglio, Florent, Karimi Vajargah, Ali, Morten Aamo, Ole, van Oort, Eric

Journal:

International Journal of Multiphase Flow

Year:

2016

Language:

english

File:

PDF, 629 KB

english, 2016

45

[Society of Petroleum Engineers SPE/IADC Managed Pressure Drilling & Underbalanced Operations Conference & Exhibition - Madrid, Spain (2014-04-08)] SPE/IADC Managed Pressure Drilling & Underbalanced Operations Conference & Exhibition - Fit-for-Purpose Modeling for Automation of Underbalanced Drilling Operations

Aarsnes, Ulf Jakob Flo, Di Meglio, Florent, Aamo, Ole Morten, Kaasa, Glenn-Ole

Language:

english

File:

PDF, 790 KB

english

46

An adaptive observer for hyperbolic systems with application to UnderBalanced Drilling

Meglio, Florent Di, Bresch-Pietri, Delphine, Aarsnes, Ulf Jakob F.

Journal:

IFAC Proceedings Volumes

Year:

2014

Language:

english

File:

PDF, 406 KB

english, 2014

47

[Offshore Technology Conference Offshore Technology Conference - Houston, Texas (2009-05-04)] Offshore Technology Conference - Design predictions and measurements during installation of suction anchors with and without water-flow system to help installation through layered soil profiles

Aas, Per Magne, Saue, Morten, Aarsnes, Jan

Language:

english

File:

PDF, 301 KB

english

48

[The Offshore Technology Conference Offshore Technology Conference - (2009.05.4-2009.05.7)] Proceedings of Offshore Technology Conference - Design Predictions and Measurements During Installation of Suction Anchors With and Without Water-Flow System to Help Installation Through Layered Soil Profiles

Aas, Per, Saue, Morten, Aarsnes, Jan

Year:

2009

Language:

english

File:

PDF, 301 KB

english, 2009

49

A Methodology for Classifying Operating Regimes in Underbalanced-Drilling Operations

Aarsnes, Ulf Jakob F., Di Meglio, Florent, Graham, Robert, Aamo, Ole Morten

Journal:

Year:

2016

Language:

english

File:

PDF, 1.03 MB

english, 2016

50

[Society of Petroleum Engineers SPE Deepwater Drilling and Completions Conference - Galveston, Texas, USA (2016-09-14)] SPE Deepwater Drilling and Completions Conference - Mathematical Modeling of Gas in Riser

Aarsnes, Ulf Jakob Flø, Hauge, Espen, Godhavn, John-Morten

Language:

english

File:

PDF, 1.70 MB

english