This study is concerned with vortex-induced vibration (VIV) of deepwater marine risers. Riser response measurements from model tests on a densely instrumented long, flexible riser in uniform and sheared currents offer an almost ideal setup for our work. Our objectives are two-fold: (i) we use the measured data to describe complexities inherent in riser motions accompanying VIV; and (ii) we discuss how such data sets (and even less spatially dense monitoring) can be used effectively in predicting fatigue damage rates, which are of critical interest for deepwater risers.

Issue Section:
CFD and VIV
Keywords:
condition monitoring, fatigue, offshore installations, sensor placement, structural engineering, vibrations, vortices
Topics:
Fatigue damage, Pipeline risers, Risers (Casting), Sensors, Vortex-induced vibration, Traveling waves, Displacement

References

1.
Chasparis
,
F.
,
Modarres-Sadeghi
,
Y.
,
Hover
,
F.
,
Triantafyllou
,
M.
,
Tognarelli
,
M.
, and
Beynet
,
P.
, 2009, “
Lock-In, Transient and Chaotic Response in Riser, V. I. V.
”
28th International Conference on Ocean, Offshore and Arctic Engineering
,
Honolulu, HI
, May 3–June 5, OMAE Paper No. 79444.
2.
Trim
,
A.
,
Braaten
,
H.
,
Lie
,
H.
, and
Tognarelli
,
M.
, 2005, “
Experimental Investigation of Vortex-Induced Vibration of Long Marine Risers
,”
J. Fluids Struct.
21
, pp.
335
–
361
.
Crossref
Search ADS
 
3.
Lie
,
H.
, and
Kaasen
,
K.
, 2006, “
Modal Analysis of Measurements From a Large-Scale VIV Model Test of a Riser in Linearly Sheared Flow
,”
J. Fluids Struct.
22
, pp.
557
–
575
.
Crossref
Search ADS
 
4.
Braaten
,
H.
, and
Lie
,
H.
, 2004, “
NDP Riser High Mode VIV Tests
,” Norwegian Marine Technology Research Institute, Technical Report No. 512394.00.01.
5.
Center for Ocean Engineering, Massachusetts Institute of Technology, 2007, “
Vortex Induced Vibration Data Repository, 2007
,” http://oe.mit.edu/http://oe.mit.edu/ VIV
6.
Jauvtis
,
N.
, and
Williamson
,
C.
, 2004, “
The Effect of Two Degrees of Freedom on Vortex-Induced Vibration at Low Mass and Damping
,”
J. Fluid Mech.
509
, pp.
23
–
62
.
Crossref
Search ADS
 
7.
Modarres-Sadeghi
,
Y.
,
Mukundan
,
H.
,
Dahl
,
J.
,
Hover
,
F.
, and
Triantafyllou
,
M.
, 2010, “
The Effect of Higher Harmonic Forces on Fatigue Life of Marine Risers
,”
J. Sound Vib.
329
, pp.
43
–
55
.
Crossref
Search ADS
 
8.
Bendat
,
J.
, and
Piersol
,
A.
, 2000,
Random Data Analysis and Measurement Procedures
, 3rd ed.,
Wiley-Interscience
,
New York
.
9.
Kijewski
,
T.
, and
Kareem
,
A.
, 2003, “
Wavelet Transforms for System Identification in Civil Engineering
,”
Comput. Aided Civ. Infrastruct. Eng.
18
, pp.
339
–
355
.
Crossref
Search ADS
 
10.
Bai
,
Y.
,
Bhattacharyya
,
R.
, and
McCormick
,
M.
, 2001,
Pipelines and Risers
,
Elsevier
,
New York
.
11.
Shi
,
C.
,
Manuel
,
L.
, and
Tognarelli
,
M.
, 2010, “
Alternative Empirical Procedures for Fatigue Damage Rate Estimation of Instrumented Risers Undergoing Vortex-Induced Vibration
,”
29th International Conference on Ocean
,
Offshore and Arctic Engineering
,
OMAE, Shanghai, China
, June 6–11.
Copyright © 2012
 by American Society of Mechanical Engineers
You do not currently have access to this content.