Second order nonlinear hydroelastic analysis of floating bodies - Theory

被引:0
|
作者
Chen, Xu-Jun [1 ]
Wu, You-Sheng [1 ]
Cui, Wei-Cheng [1 ]
Shen, Qing [1 ]
机构
[1] Sch. of Naval Arch. and Ocean Eng., Shanghai Jiaotong Univ., Shanghai 200030, China
来源
Chuan Bo Li Xue/Journal of Ship Mechanics | 2002年 / 6卷 / 04期
关键词
Fluid dynamics - Force control - Hydroelasticity - Liquid waves - Nonlinear equations;
D O I
暂无
中图分类号
学科分类号
摘要
By integrating the second-order fluid pressure over the instantaneous wetted surface, the generalized first-and second-order fluid forces needed in nonlinear hydroelastic analysis were obtained. The generalized first order wave exciting forces, radiation forces and restoring forces have the same form as in linear hydroelasticity theory. One added first-order term represents the influence of the rigid body rotations on the first-order forces in the nonlinear analysis. The generalized second-order fluid forces consist of five parts: generalized second-order wave exciting forces which are related to incident and diffracted wave potentials; generalized second-order radiation forces related to radiation potentials; generalized second-order forces induced by the coupling between radiation were potentials and incident-diffracted wave potentials; generalized second-order forces induced by the movement of wetted surface; and generalized second-order forces induced by the instantaneous variation of the wetted surface. The expressions for coefficients of the generalized first-and second-order hydrodynamic forces in irregular waves were also given. Based on these, the nonlinear hydroelasticity equations for arbitrary floating bodies in irregular waves were presented, and the solution method was discussed. Numerical results of the second-order nonlinear hydroelastic analysis of ocean floating systems will be given in the accompanying paper.
引用
收藏
页码:33 / 44
相关论文
共 50 条
  • [21] Hydroelastic analysis of flexible floating interconnected structures
    Fu, Shixiao
    Moan, Torgeir
    Chen, Xujun
    Cui, Weicheng
    OCEAN ENGINEERING, 2007, 34 (11-12) : 1516 - 1531
  • [22] Analysis of the Hydroelastic Performance of Very Large Floating Structures Based on Multimodules Beam Theory
    Xu, Jin
    Sun, Yonggang
    Li, Zhifu
    Zhang, Xiantao
    Lu, Da
    MATHEMATICAL PROBLEMS IN ENGINEERING, 2017, 2017
  • [23] 3D hydroelastic analysis of very large floating bodies over variable bathymetry regions
    Gerostathis T.P.
    Belibassakis K.A.
    Athanassoulis G.A.
    Gerostathis, Th. P. (tgero@teiath.gr), 1600, Springer International Publishing (02): : 159 - 175
  • [24] Analysis of second-order resonance in wave interactions with floating bodies through a finite-element method
    Wang, C. Z.
    Wu, G. X.
    OCEAN ENGINEERING, 2008, 35 (8-9) : 717 - 726
  • [25] Hydroelastic theory for offshore floating plates of variable flexural rigidity
    Michele, S.
    Zheng, S.
    Renzi, E.
    Borthwick, A. G. L.
    Greaves, D. M.
    JOURNAL OF FLUIDS AND STRUCTURES, 2024, 125
  • [26] Development of Reduced-Order-Discrete-Module method for hydroelastic analysis of floating flexible structures
    Shi, Yongkang
    Wei, Yanji
    Chen, Zuogang
    JOURNAL OF FLUIDS AND STRUCTURES, 2024, 130
  • [27] A MESH CONVERGENCE STUDY FOR LOW FREQUENCY SECOND ORDER WAVE FORCES ON FLOATING BODIES
    Pan, Zhiyuan
    Kim, Taeyoung
    Heo, Jaekyung
    PROCEEDINGS OF ASME 2023 42ND INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE & ARCTIC ENGINEERING, OMAE2023, VOL 5, 2023,
  • [28] Hydroelastic analysis of bodies that enter and exit water
    Piro, Dominic J.
    Maki, Kevin J.
    JOURNAL OF FLUIDS AND STRUCTURES, 2013, 37 : 134 - 150
  • [29] Extreme Response of Very Large Floating Structure Considering Second-Order Hydroelastic Effects in Multidirectional Irregular Waves
    Chen, Xujun
    Moan, Torgeir
    Fu, Shixiao
    JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME, 2010, 132 (04):
  • [30] Nonlinear fluctuation-dissipation theory to the second order
    Ali, AH
    AIAA JOURNAL, 2002, 40 (02) : 293 - 300