Recent Development of the Empirical Basis for Prediction of Vortex Induced Vibrations
DOI:
https://doi.org/10.5614/j.eng.technol.sci.2016.48.1.9Abstract
This paper describes the research activity related to VIV that has taken place at NTNU and MARINTEK in Trondheim during the last years. The overall aim of the work has been increased understanding of the VIV phenomenon and to improve the empirical basis for prediction of VIV. The work has included experiments with flexible beams in sheared and uniform flow and forced motions of short, rigid cylinders. Key results in terms of hydrodynamic coefficients and analysis procedures have been implemented in the computer program VIVANA, which has resulted in new analysis options and improved hydrodynamic coefficients. Some examples of results are presented, but the main focus of the paper is to give an overview of the work and point out how the new results can be used in order to improve VIV analyses.Downloads
References
Larsen, C.M., Vikestad, K., Yttervik, R. & Passano, E., Empirical Model for Analysis of Vortex Induced Vibrations - Theoretical Background and Case Studies, OMAE2001-1203, Rio de Janeiro, Brazil, 2001.
Gopalkrishnan, R., Vortex-Induced Forces on Oscillating Bluff Cylinders, Sc. D. thesis, Dept. of Ocean Eng., MIT, and Dept. Applied Ocean Phys. and Eng., WHOI, Massachusetts, USA, 1993.
Aronsen, K.H., An Experimental Investigation of In-line and Combined In-line and Cross Flow Vortex Induced Vibrations, PhD thesis, CeSOS/Department of Marine Technology, NTNU, Trondheim, 2007.
Aronsen, K.H. & Larsen, C.M., Hydrodynamic Coefficients for In-Line Vortex Induced Vibrations, OMAE2007-29531, San Diego, USA, 2007.
Soni, P.K., Hydrodynamic Coefficients for Vortex-Induced Vibrations of Flexible Beams, PhD thesis, CeSOS/Department of Marine Technology, NTNU, Trondheim, 2008.
Barnardo, C., Load and Response Estimation and Model Recalibration Using Inverse Finite Element Method, PhD thesis, University of Stellenbosch, Cape Town, South Africa, 2008.
Mainon, P., Barnardo, C. & Larsen, C.M., VIV Force Estimation Using Inverse FEM, OMAE 2008-57375, Estoril, Portugal, 2008.
Wu, J., Hydrodynamic Force Identification from Stochastic Vortex Induced Vibration Experiments with Slender Beams, PhD thesis, CeSOS/Department of Marine Technology, NTNU, Trondheim, 2011.
Wu, J. Larsen, C.M. & Lie, H., Estimation of Hydrodynamic Coefficients for VIV of Slender Beam at High Mode Orders, OMAE 2010-20327, Shanghai, China, 2010.
Larsen, C.M., Passano, E., Baarholm, G.S., & Koushan, K., Non-Linear Time Domain Analysis of Vortex Induced Vibrations for Free Spanning Pipelines, OMAE2004-51404, Vancouver, Canada, 2004.
Larsen, C.M. & Passano, E., Time And Frequency Domain Analysis of Catenary Risers Subjected to Vortex Induced Vibrations, OMAE 2006-92149, Hamburg, Germany, 2006.
Chaplin, I.R., Bearman, P.W., Fontaine, E., Herfjord, K., Isherwood, M., Larsen, C.M., Meneghini, J.R., Moe, G. & Triantafyllou, M.S., Blind Predictions of Laboratory Measurements of Vortex Induced Vibrations of a Tension Riser, International Symposium on Flow Induced Vibrations, Paris, France, 2004.
Passano, E., Larsen, C.M. & Lie, H., Comparison of Calculated in-Line Vortex Induced Vibrations to Model Tests, OMAE2012-83387, Rio de Janeiro, Brazil, 2012.
Passano, E., Larsen, C.M. & Wu, J., VIV of Free Spanning Pipelines: Comparison of Response from a Semi-Empirical Code to Model Tests, OMAE 2010-20330, Shanghai, China, 2010.
Huse, E. & Sther, L.K., VIV Excitation and Damping of Straked Risers, OMAE 2001/OFT-1363, 2001.
Larsen, C.M., Baarholm, G.S. & Lie, H., Influence From Helical Strakes on Vortex Induced Vibrations and Static Deflection of Drilling Risers, OMAE2005-67192, Halkidiki, Greece, 2005.
Lie, H., Braaten, H., Kristiansen, T. & Nielsen, F.G., Free-Span VIV Testing of Full-Scale Umbilical, ISOPE 2007-JSC-213, 2007.
Vandiver, J.K. & Li, L., SHEAR7 V4.2f Program Theoretical Manual, Department of Ocean Engineering, Massachusetts Institute of Technology, Massachusetts, USA, 2003.
Larsen, C.M., Vikestad, K., Yttervik, R. & Passano, E., VIVANA Theory Manual, MARINTEK Report, Trondheim, Norway, 2000.
Swithenbank, S.B., Dynamics of Long Flexible Cylinders at High-Mode Number in Uniform and Sheared Flows, PhD Thesis, MIT Department of Mechanical Engineering, 2007.
Vandiver, J.K., Swithenbank, S.B., Jaiswel, V. & Jhingran, V., Fatigue Damage from High-Mode Number Vortex-Induced Vibration, OMAE2006-9240, Hamburg Germany, 2006.
Larsen, C.M., Lie, H., Passano, E., Yttervik, R., Wu, J. & Baarholm, G., VIVANA Theory Manual, Marintek, Trondheim, 2009.
Larsen, C.M., Zhao, Z. & Lie, H., Frequency Components of Vortex Induced Vibrations in Sheared Current, OMAE2012-83092, Rio de Janeiro, Brazil, 2012.
Thorsen, M.J., Saevik, S & Larsen, C.M., Time Domain Simulation of Cross-Flow and In-Line Vortex-Induced Vibrations, Proceedings of the 9th International Conference on Structural Dynamics, EURODYN 2014, Porto, Portugal, 2014.
Leira, J.B., Berntsen, V., Larsen, C.M., Meling, T.S. & Stahl, B., Assessment of Fatigue Safety Factors for Deep-Water Risers, OMAE2003-37346, 2003.
Fontaine, E., Marcollo, H., Vandiver, K., Triantafyllou, M., Larsen, C., Tognarelli, M., Constantinides, Y. & Oakley, O., Reliability Based Factors Of Safety for Fatigue Using NDP Riser High Mode VIV Tests" , OMAE 2011-49820, 2011.
Lie, H., Larsen, C.M. & Kaasen, K.E., Frequency Domain Model for Prediction of Stochastic Vortex Induced Vibrations for Deep Water Risers. OMAE2008-57566, Estoril, Portugal, 2008.