Re-Evaluation of VIV Riser Fatigue Damage
Author(s)
Tognarelli, Michael
Beynet, Pierre
Modarres-Sadeghi, Yahya
Bourguet, Remi
Triantafyllou, Michael S
Date Issued
June 2010
Journal
29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6
Publisher
ASME International
Citation
Modarres-Sadeghi, Yahya, Rémi Bourguet, Michael S. Triantafyllou, Michael Tognarelli, and Pierre Beynet. “Re-Evaluation of VIV Riser Fatigue Damage.” 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 6-11 June, 2010, Shanghai, China, ASME, 2010. © 2010 ASME
Version
Final published version
Abstract
The paper describes a new characterization of the properties of the vortex-induced vibrations (VIV) of marine risers, which emerges from processing field and experimental data. We show that two currently employed assumptions: (a) that VIV is a statistically steady-state response containing one or several frequencies, and (b) that VIV consists of alternating dominant modes (mode-sharing), are inadequate. Instead, we find that the response either contains strong traveling wave components accompanied by high force harmonics; or consists of a chaotic wandering among several traveling and standing waves, associated with a wide-band spectrum; both types of response require careful consideration for correct fatigue evaluation. Topics: Fatigue damage, Pipeline risers, Vortex-induced vibration
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1115/OMAE2010-21043
