**Page description appears here**

“Analysis of Vortex Induced Vibrations of Marine Risers”

Authors: Karl E. Kaasen and Halvor Lie,
Affiliation: SINTEF
Reference: 2003, Vol 24, No 2, pp. 71-85.

     Valid XHTML 1.0 Strict

Keywords: Vortex Induced Vibration. Marine Risers, Modal Analysis, Least Squares Estimation, Fast Fourier Transformation

Abstract: Vortex induced vibrations (VIV) can be a severe problem to marine risers with regard to fatigue damage and drag loading. In order to design marine risers, therefore, it is necessary to have good theoretical and numerical models for prediction of VIV. Full-scale data are needed for verification of the models. To this end, three drilling risers were instrumented with accelerometers and rotation-rate devices for measurement of VIV. Also, sea current was measured at number of depths for reference. A large quantity of data was collected during the time the instrument system was in operation. In order to choose data records for further investigation and comparison with theoretical models the raw data had to be conditioned and converted to a suitable form. The paper describes how the riser lateral displacements were derived from the measurements. A major task has been to rid the acceleration measurements of the influence of gravity due to the riserīs rotations out of the vertical and include the measurements of angular motion in a consistent way. This has been done using modal decomposition and a least-squares method combined with frequency-domain calculation to estimate the modal weights. MATLAB was used for the calculations and the presentation of results. An example of results is given.

PDF PDF (1985 Kb)        DOI: 10.4173/mic.2003.2.1

DOI forward links to this article:
  [1] Celso K. Morooka and Raphael I. Tsukada (2013), doi:10.1016/j.apor.2013.10.010
  [2] Sau-Lon James Hu, Wenlong Yang and Huajun Li (2014), doi:10.1016/j.jfluidstructs.2014.08.013
  [3] S. I. McNeill (2012), doi:10.1115/1.4006147
  [4] Keum-Shik Hong and Umer Hameed Shah (2018), doi:10.1016/j.oceaneng.2018.01.086

[1] BLEVINS, R.D. (1990). Flow-Induced Vibration, 2nd Ed., Van Nostrand Reinhold, New York.
[2] COOLEY, J.W. TUKEY, J.W. (1965). An Algorithm for the Machine Calculation of Complex Fourier Series, Math of Computation, Vol. 19. pp. 297-301 doi:10.2307/2003354
[3] GOODWIN, G.C. PAYNE, R.L. (1977). Dynamic System Identification, Experiment Design and Data Analysis. Academic Press, New York.
[4] GOPALKRISHNAN, R. (1993). Vortex-Induced Forces on Oscillating Bluff Cylinders, Doctoral Thesis, Dept. of Ocean Engineering, Massachusetts Institute of Technology and Woods Hole Oceanographics Institution, USA.
[5] HALSE, K.H. (2000). Norwegian Deepwater Program: Improved VIV Prediction, Paper 11996, Offshore Technology Conference, Houston, USA.
[6] HOEN, C. MOE, G. (1999). Modal decomposition of measured vortex induced response of drilling rises, Proceedings of the Ninth International Offshore and Polar Engineering Conference.ISOPE, Brest, France.
[7] KAASEN, K.H., LIE, H, SOLAAS, F. VANDIVER, J.K. (2000). Norwegian Deepwater Program, Analysis of Vortex-Induced Vibrations of Marine Risers Based on Full-Scale Measurements. Paper 11997, Offshore Technology Conference, Houston, USA.
[8] KLEIVEN, G. (2002). Identifying VIV vibration modes by use of the Empirical Orthogonal Functions technique, Proceedings of the 21th International Conference on Offshore Mechanics and Arctic Engineering, Oslo, Norway.
[9] LIE, H., LARSEN, C.M. VANDIVER, J.K. (1997). Vortex Induced Vibrations of Long Marine Risers; Model Test in a Rotating Rig, 16th Int. Conf. Offshore Mechanics and Arctic Engineering, Yokohama, Japan.
[10] LIE, H. VANDIVER, J.K. (1998). VIV Model Test of a Bare and Staggered Buoyancy Riser in a Rotating Rig, Paper OTC 8700, Offshore Technology Conference, Houston.
[11] OLUFSEN, A GARSIDE, R (1999). Riser and Mooring Research Activities Within the Norwegian Deepwater Program, Deep Offshore Technology Conference, Stavanger, Norway.
[12] SARPKAYA, T (1978). Fluid Forces on Oscillating Cylinders, J. of The Waterway. Port. Coastal and Ocean Division, 104.WW4, August 1978.
[13] SHEPPARD, D.M. OMAR, A.F. (1992). Vortex-induced loading on offshore structures: A selective review of experimental work, Paper No. 6817, Proc. 24th Offshore Technology Conference, Houston,USA.
[14] VANDIVER, J.K. (1993). Dimensionless parameters important to the prediction of vortex-induced vibration of long, flexible cylinders in ocean currents, J. of Fluids and Structures 7.
[15] VANDIVER, K. (1998). Research Challenges in the Vortex-Induced Prediction of Marine Risers, Paper OTC 8698, Offshore Technology Conference, Houston.
[16] VIKESTAD, K. (1998). Multi-Frequency Response of a Cylinder Subjected to Vortex-Shedding and Support Motions, Doctoral Thesis, Norwegian University of Science and Technology, Trondheim.

  title={{Analysis of Vortex Induced Vibrations of Marine Risers}},
  author={Kaasen, Karl E. and Lie, Halvor},
  journal={Modeling, Identification and Control},
  publisher={Norwegian Society of Automatic Control}


Oct 2018: MIC reaches 3000 DOI Forward Links. The last 1000 took 2 years and 5 months.

May 2016: MIC reaches 2000 DOI Forward Links. The first 1000 took 34 years, the next 1000 took 2.5 years.

July 2015: MIC's new impact factor is now 0.778. The number of papers published in 2014 was 21 compared to 15 in 2013, which partially explains the small decrease in impact factor.

Aug 2014: For the 3rd year in a row MIC's impact factor increases. It is now 0.826.

Dec 2013: New database-driven web-design enabling extended statistics. Article number 500 is published and MIC reaches 1000 DOI Forward Links.

Jan 2012: Follow MIC on your smartphone by using the RSS feed.


July 2011: MIC passes 1000 ISI Web of Science citations.

Mar 2010: MIC is now indexed by DOAJ and has received the Sparc Seal seal for open access journals.

Dec 2009: A MIC group is created at LinkedIn and Twitter.

Oct 2009: MIC is now fully updated in ISI Web of Knowledge.