TY  - JOUR
PB  - Elsevier Ltd
SN  - 00298018
EP  - 411
AV  - none
N1  - cited By 40
TI  - A simplified method to predict fatigue damage of offshore riser subjected to vortex-induced vibration by adopting current index concept
SP  - 401
Y1  - 2018///
JF  - Ocean Engineering
A1  - Kim, D.K.
A1  - Incecik, A.
A1  - Choi, H.S.
A1  - Wong, E.W.C.
A1  - Yu, S.Y.
A1  - Park, K.S.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85045381921&doi=10.1016%2fj.oceaneng.2018.03.042&partnerID=40&md5=1721e382e1971251d16228f6bf55f17a
VL  - 157
N2  - In the present study, an innovative method for estimating fatigue performance of risers under vortex-induced vibration (VIV) is proposed. Generally, fatigue performance is affected by the surrounding environment such as wind, wave, and current. It is well known that current is the most influential load among all for offshore risers. In structural safety aspect, strength and fatigue are the most important factors for riser design. In addition, fatigue design is affinitive to the VIV phenomenon. For the analysis of fatigue performance of riser, SHEAR7 numerical simulation code which is commonly used in offshore industry is applied. In order to identify the relation between current load and fatigue performance of riser, Fatigue damage versus Current index (F-C) diagram has been proposed. F-C diagram may cover change of current profiles and help predict the fatigue damage under VIV. In case of current profile, a total of sixty cases of current scenarios are considered based on six representative sea-states. The obtained results from this study will be a useful guideline to predict the effect of current on the fatigue performance of riser. © 2018 Elsevier Ltd
ID  - scholars10274
KW  - Fluid structure interaction; Forecasting; Marine risers; Ocean currents; Offshore oil well production; Vibrations (mechanical); Vortex flow
KW  -  'current; Current index; F-C (fatigue damage versus current index) diagram; Fatigue performance; Fatigue safety; Offshore risers; Steel catenary's risers; Subseum; Vortex induced vibration
KW  -  Fatigue damage
KW  -  conceptual framework; damage; design; fatigue; loading; oceanic current; riser; steel; vortex
ER  -