NUMERICAL SIMULATION ON THE DYNAMIC INSTALLATION OF THE OMNI-MAX ANCHORS IN CLAY USING A FLUID DYNAMIC APPROACH

被引:0
|
作者
Liu, Jun [1 ]
Zhang, Yuqin [1 ]
机构
[1] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Liaoning, Peoples R China
基金
中国国家自然科学基金;
关键词
dynamical installation; anchor; booster; numerical modeling; CFD; TORPEDO ANCHOR; FORCES; IMPACT;
D O I
暂无
中图分类号
P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
The OMNI-Max anchors, which are used as foundations for mooring deep-water offshore facilities, are raised recent years for their dynamically installation. ANSYS CFX 17.0 is a computational fluid dynamic (CFD) program, capable of simulating the dynamically installation process of the OMNIMax anchor. In the simulation, soft clay with linearly increasing shear strength is modeled as Eulerian fluid material. The clay is subjected to high shear strain rate during the dynamical installation procedure, hence the H-B model is proposed as it is applicable to a wide range of shear strain rate. Different anchor impact velocity levels are modeled to investigate their effects on the anchor final penetration depths. To improve the anchor impact velocity and final penetration depth, a booster, which is retrievable and renewable, is attached to the tail of the anchor. The results demonstrate that the anchor would achieve deeper penetration depth with the increase in impact velocity. Also the anchor with a booster could reach a deeper penetration depth than that of the single anchor owing to the increase of the anchor total energy.
引用
收藏
页数:8
相关论文
共 50 条
  • [1] Dynamic installation of OMNI-Max anchors in clay: numerical analysis
    Kim, Y. H.
    Hossain, M. S.
    [J]. GEOTECHNIQUE, 2015, 65 (12): : 1029 - 1037
  • [2] Dynamic installation of OMNI-Max anchors in clay: Numerical analysis
    Kim, Y.H.
    Hossain, M.S.
    [J]. Geotechnique, 2015, 65 (11): : 1029 - 1037
  • [3] Dynamic installation, keying and diving of OMNI-Max anchors in clay
    Kim, Y. H.
    Hossain, M. S.
    [J]. GEOTECHNIQUE, 2017, 67 (01): : 78 - 85
  • [4] An innovative booster for dynamic installation of OMNI-Max anchors in clay: Physical modelling
    Han, Congcong
    Liu, Jun
    Zhang, Yuqin
    Zhao, Wei
    [J]. OCEAN ENGINEERING, 2019, 171 : 345 - 360
  • [5] Innovative Booster for Dynamic Installation of OMNI-Max Anchor in Clay: Numerical Modeling
    Liu, Jun
    Liu, Lianghui
    Han, Congcong
    [J]. JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING, 2022, 148 (01)
  • [6] The pullout capacity of OMNI-Max anchors in clay
    Yang, Yancheng
    Liu, Haixiao
    Zhao, Yanbing
    [J]. OCEAN ENGINEERING, 2021, 230
  • [7] The diving and keying capacities of OMNI-Max anchors in clay
    Yang, Yancheng
    Liu, Haixiao
    [J]. OCEAN ENGINEERING, 2022, 261
  • [8] NUMERICAL INVESTIGATION OF COMPREHENSIVE BEHAVIORS OF OMNI-MAX ANCHORS IN SAND
    Zhang, Chenyang
    Liu, Haixiao
    Xiao, Zhong
    Zhang, Wei
    [J]. PROCEEDINGS OF ASME 2023 42ND INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE & ARCTIC ENGINEERING, OMAE2023, VOL 9, 2023,
  • [9] Numerical investigation of dynamic installation of torpedo anchors in clay
    Kim, Y. H.
    Hossain, M. S.
    Wang, D.
    Randolph, M. F.
    [J]. OCEAN ENGINEERING, 2015, 108 : 820 - 832
  • [10] Loading Rate Effect on the Pullout Capacity of OMNI-Max Anchors in Clay Coupled With Multiple Factors
    Liu, Haixiao
    Yang, Yancheng
    Xu, Heng
    [J]. Journal of Offshore Mechanics and Arctic Engineering, 2024, 146 (01)