• A Time-Domain Method for Hydroelastic Analysis of Floating Bridges in Inhomogeneous Waves 

      Fu, Shixiao; Wei, Wei; Ou, Shaowu; Moan, Torgeir; Deng, Shi; Lie, Halvor (ASME Proceedings | Torgeir Moan Honoring Symposium;OMAE2017-62534, Chapter, 2017-06-25)
      Based on the three dimensional potential theory and finite element method (FEM), this paper presented a method for time-domain hydroelastic analysis of a floating bridge in inhomogeneous waves. A floating bridge in both ...
    • Dominant parameters for vortex-induced vibration of a steel catenary riser under vessel motion 

      Wang, Jungao; Fu, Shixiao; Larsen, Carl Martin; Baarholm, Rolf; Wu, Jie; Lie, Halvor (Journal article; Peer reviewed, 2017)
      Recent research has confirmed a new type of vortex-induced vibration (VIV) in steel catenary risers (SCRs), purely caused by vessel motion. Vessel motion-induced VIV occurs because the SCR is exposed to the equivalent ...
    • Drilling Riser Model Test for Software Verification 

      Yin, Decao; Lie, Halvor; Russo, Massimiliano; Grytøyr, Guttorm (Journal of Offshore Mechanics and Arctic Engineering;OMAE-17-1067, Journal article; Peer reviewed, 2017)
      Marine drilling riser is subject to complicated environmental loads which include top motions due to Mobile Offshore Drilling Unit (MODU), wave loads and current loads. Cyclic dynamic loads will cause severe fatigue ...
    • Dynamic response of a top-tensioned riser under vessel motion 

      Yin, Decao; Passano, Elisabeth; Lie, Halvor; Grytøyr, Guttorm; Aronsen, Kristoffer; Tognarelli, Michael; Kebadze, Elizbar Buba (Journal article; Peer reviewed, 2018-07)
      Model tests of a top-tensioned riser model were carried out as a part of a joint industry project, with the purpose of verifying the calculations of the riser analysis program RIFLEX. Sinusoidal motion in one direction was ...
    • Experimental and numerical study of a top tensioned drilling riser subjected to vessel motion 

      Yin, Decao; Passano, Elisabeth; Lie, Halvor; Grytøyr, Guttorm; Aronsen, Kristoffer; Tognarelli, Michael; Kebadze, Elizbar Buba (Journal article; Peer reviewed, 2019-01-01)
      Model tests of a top tensioned riser (TTR) model were carried out as a part of a joint industry project, with the purpose of better understanding the dynamic behaviour of drilling riser and verifying the calculations of ...
    • Forced Vibration Tests for In-Line VIV to Assess Partially Strake-Covered Pipeline Spans 

      Wu, Jie; Yin, Decao; Passano, Elisabeth; Lie, Halvor; Peek, Ralf; Sequeiros, Octavio E.; Ang, Sze; Bernardo, Chiara; Atienza, Meliza (ASME Digital Collection;OMAE2019-95970, Chapter, 2019-06)
      A series of experiments is performed in which a strake-covered rigid cylinder undergoes harmonic purely in-line motion while subject to a uniform “flow” created by towing the test rig along SINTEF Ocean’s towing tank. These ...
    • Hydrodynamic Coefficients of a Flexible Pipe With Staggered Buoyancy Elements and Strakes under VIV Conditions 

      Fu, Shixiao; Lie, Halvor; Wu, Jie; Baarholm, Rolf Jarle (ASME Proceedings | Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV;OMAE2017-62535, Chapter, 2017-06-25)
      A 38m long flexible pipe with staggered buoyancy modules and strakes has been tested in the ocean basin of SINTEF Ocean (former Marintek) for VIV investigation of a lazy wave riser. In this paper the inverse analysis method ...
    • Hydrodynamics of Flexible Pipe With Staggered Buoyancy Elements Undergoing Vortex-Induced Vibrations 

      Zhang, Mengmeng; Fu, Shixiao; Song, Laijian; Wu, Jie; Lie, Halvor; Ren, Haojie (ASME Proceedings | Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV;OMAE2017-61265, Chapter, 2017-06-25)
      Flexible riser with staggered buoyancy elements has been widely used in ocean engineering, such as steel lazy wave riser, drilling riser, etc. Both the buoyancy elements and the riser may experience vortex induced vibrations ...
    • In-Line VIV Based on Forced-Vibration Tests 

      Yin, Decao; Wu, Jie; Passano, Elisabeth; Lie, Halvor; Peek, Ralf; Sequeiros, Octavio E.; Ang, Sze; Bernardo, Chiara; Atienza, Meliza (ASME Digital collection;OMAE2019-95972, Chapter, 2019-06-14)
      Excitation and added mass functions determined from forced vibration tests of a rigid cylinder undergoing harmonic motion in the flow are used in the semi-empirical software VIVANA to predict the VIV response of pipelines. ...
    • Numerical benchmark studies on drag and lift coefficients of a marine riser at high Reynolds numbers 

      Qiu, Wei; Lee, Dong-Yeon; Lie, Halvor; Rousset, Jean-Marc; Mikami, Takashi; Sphaier, Sergio H.; Tao, Longbin; Wang, Xuefeng; Magarovskii, Viacheslav (Journal article; Peer reviewed, 2017-10-31)
      Numerical benchmark studies on drag and lift coefficients of a marine riser have been organized by the 27th ITTC Ocean Engineering Committee. The purpose of the studies was to benchmark the capabilities of CFD methods ...
    • OMAE2017-61768 VIV Responses of Riser With Buoyancy Elements: Forced Motion Test and Numerical Prediction 

      Wu, Jie; Lie, Halvor; Fu, Shixiao; Baarholm, Rolf Jarle; Constantinides, Yiannis (ASME Proceedings | Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV;OMAE2017-61768, Chapter, 2017-06-25)
      Steel Lazy Wave Riser (SLWR) is an attractive deep water riser concept. When subjected to vortex induced vibrations (VIV), the vortex shedding process of the buoyancy element and the bare riser section will be different ...
    • On the Design Considerations of New Offloading Hose Applied on a Turret Moored FPSO 

      Yin, Decao; Fylling, Ivar John; Lie, Halvor; Baarholm, Rolf Jarle; Kendon, Timothy Edward (ASME Digital collection;OMAE2017-61410, Chapter, 2017-06)
      Offloading hoses are used to transfer crude oil or liquid petroleum products from a fixed offshore production platform/floating production, storage and offloading (FPSO) unit to shuttle tankers. The hoses are subjected to ...
    • On the significance of the higher-order stress in riser vortex-induced vibrations responses 

      Wu, Jie; Yin, Decao; Lie, Halvor; Larsen, Carl Martin; Baarholm, Rolf Jarle; Liapis, Stergios (Journal article; Peer reviewed, 2019-02)
      Vortex-induced vibrations (VIV) can lead to fast accumulation of fatigue damage and increased drag loads for slender marine structures. VIV responses mainly occur at the vortex shedding frequency, while higher harmonics ...
    • Prototype Reynolds Number VIV Tests on a Full-scale Rigid Riser 

      Yin, Decao; Lie, Halvor; Baarholm, Rolf Jarle (J. Offshore Mech. Arct. Eng;OMAE-17-1069, Journal article; Peer reviewed, 2017-09)
      Slender offshore structures in deep water subjected to currents may experience vortex-induced vibrations (VIV), which can cause significant fatigue damage. Extensive experimental researches have been conducted to study the ...
    • Prototype Reynolds Number VIV Tests on a Full-Scale Rigid Riser 

      Yin, Decao; Lie, Halvor; Baarholm, Rolf Jarle (ASME Digital collection;OMAE2017-61415, Chapter, 2017)
      Slender offshore structures in deep water subjected to currents may experience vortex-induced vibrations (VIV), which can cause significant fatigue damage. Extensive experimental researches have been conducted to study the ...