• Analysis of full-scale riser responses in field conditions based on Gaussian mixture model 

      Wu, Jie; Eidnes, Sølve; Jin, Jingzhe; Lie, Halvor; Yin, Decao; Passano, Elizabeth Anne; Sævik, Svein; Riemer-Sørensen, Signe (Peer reviewed; Journal article, 2022)
      Offshore slender marine structures experience complex and combined load conditions from waves, current and vessel motions that may result in both wave frequency and vortex shedding response patterns. Field measurements ...
    • 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 ...
    • Improved in-line VIV Prediction for combined in-line and Cross-Flow VIV Responses 

      Yin, Decao; Passano, Elisabeth; Larsen, Carl Martin (ASME Digital collection;OMAE2017-61715, Chapter, 2017-09)
      Slender marine structures are subjected to ocean currents, which can cause vortex-induced vibrations (VIV). Accumulated damage due to VIV can shorten the fatigue life of marine structures, so it needs to be considered in ...
    • Improved In-Line VIV Prediction for Combined In-Line and Cross-Flow VIV Responses 

      Yin, Decao; Passano, Elizabeth; Larsen, Carl Martin (Journal article; Peer reviewed, 2017-10)
      Slender marine structures are subjected to ocean currents, which can cause vortex-induced vibrations (VIV). Accumulated damage due to VIV can shorten the fatigue life of marine structures, so it needs to be considered in ...
    • Improved VIV Response Prediction Using Adaptive Parameters and Data Clustering 

      Wu, Jie; Yin, Decao; Lie, Halvor; Riemer-Sørensen, Signe; Sævik, Svein; Triantafyllou, Michael (Peer reviewed; Journal article, 2020)
      Slender marine structures such as deep-water riser systems are continuously exposed to currents, leading to vortex-induced vibrations (VIV) of the structure. This may result in amplified drag loads and fast accumulation ...
    • 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. ...
    • 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 ...
    • State-of-the-Art Review of Vortex-Induced Motions of Floating Offshore Wind Turbine Structures 

      Yin, Decao; Passano, Elisabeth; Jiang, Fengjian; Lie, Halvor; Wu, Jie; Ye, Naiquan; Sævik, Svein; Leira, Bernt Johan (Peer reviewed; Journal article, 2022)
      The motivation for this study is the fast development of floating offshore wind energy and the immature methodology and engineering practice related to predictions of vortex-induced motions (VIM). Benefiting from the oil ...