Experimental research on internal solitary waves interacting with moored floating structures

Cui, Junnan; Dong, Sheng; Wang, Zhifeng; Han, Xinyu; Yu, Miao

doi:10.1016/j.marstruc.2019.102641

Cited by 30 publications

(3 citation statements)

References 22 publications

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“…Moreover, the high financial cost is another handicap due to the complex rigid-elastic model and the measuring instruments, for such a mechanical scenario involving hydrodynamics, aerodynamics and multi-structure dynamics. However, the hydrodynamic model test regarding to single-floater systems is relatively mature considering both the theoretical and technical aspects, and quite many test campaigns have been carried out for the vessels, floating production platforms, and floating wind turbines, etc., in the previous studies (Cui et al, 2019;Jiao et al, 2018;Ruzzo et al, 2019;Xiao et al, 2017).…”

Section: Introductionmentioning

confidence: 73%

An experimental investigation on the hydrodynamic performance of floating bridge foundation with taut mooring system

Xiang

Zhang

Cheng

et al. 2023

Advances in Structural Engineering

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Floating bridges with floating foundations have wide application prospect in deep-water transportation infrastructures. The dynamic properties of floating foundation would deeply affect the structural characteristics of the whole floating bridges. However, limited research works, especially experimental studies, have been conducted to investigate the dynamic behaviors of floating bridge foundations. In this paper, a series of hydrodynamic model tests (including still water tests, regular wave tests, and environmental loading tests) on a floating bridge foundation composed of a floating platform and the mooring system combining tension legs and incline cables, are presented. The test campaign was conducted under the guidance of similarity criteria of Froude and Strouhal numbers, and focused on the structural hydrodynamic responses regarding platform motions and mooring tensions under wave and current loadings. Results show that, the hydrodynamic characteristics of the floating foundation could be quite different in bridge-transversal and -longitudinal directions. The platform dynamic motion is dominated by horizontal displacements, and slight coupling effects between rotational and lateral responses were found. Compared to the wave only conditions, the superposed currents in wave-current combination cases would mitigate the horizontally dynamic responses, and enhance the vertically heave oscillations of the floating foundation. The presented study provides beneficial references for further research on the design and construction of floating bridges in deep-water environment.

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Section: Introductionmentioning

confidence: 73%

An experimental investigation on the hydrodynamic performance of floating bridge foundation with taut mooring system

Xiang

Zhang

Cheng

et al. 2023

Advances in Structural Engineering

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“…For the floating structures, Chen et al [9,10] performed experimental research on the fixed semi-submersible platform under the ISW environment and measured the ISW loadings on the platform. Cui et al [11] conducted experimental studies on the moored structure and obtained the motion responses and mooring tensions of the floating structure under the action of the ISW. Moreover, Sara et al [12] conducted a laboratory experiment to simulate the motion responses of the SPAR wind turbine.…”

Section: Introductionmentioning

confidence: 99%

Investigations into Motion Responses of Suspended Submersible in Internal Solitary Wave Field

He,

Wu,

Wang

et al. 2024

JMSE

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When the underwater submersible encounters an internal solitary wave (ISW), its loadings and motions are significantly disturbed. To investigate the interaction mechanism between the suspended submersible and the ISW, a three-dimensional ISW–submersible-interaction numerical model was established, based on the computational fluid dynamics (CFD) method. The generation and propagation of the ISW was simulated in a two-layer fluid numerical wave tank, according to the eKdV theory. The standard operation equation of the submersible was introduced to simulate the six degree of freedom (6DoF) motions of the submersible combined with the overset dynamic mesh method. The motion simulation method was effectively validated by comparing it with published experimental results on the motion responses of a slender body under the ISW. Based on the constructed numerical model, the dynamic mechanisms between the suspended submersible and the ISW were studied, and the effects of the initial submerged depths and the ISW amplitudes on the dynamic responses of the submersible were revealed. According to the numerical results, the motions of the submersible have been significantly determined by its initial submerged depths. The submersible located above the ISW interface has a significant motion along the propagation direction of the ISW and its motion trajectory resembles a counterclockwise semi ellipse. The motion of the submersible located below the ISW interface follows the trace of the lower layer of fluid, which presents as an unclosed clockwise ellipse. The corresponding motions of the submersible would be increased with the increase in the ISW amplitudes.

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“…Zha et al [10] studied the force acting on cylindrical piles based on the observations and in situ buoyancy frequency data deriving from nautical X-band radar. Some researchers have also conducted experimental investigations on the forces induced by ISW on submerged small-scale cylinders [11][12][13]. In addition, some researchers have studied the forces induced by ISWs on other types of marine structures [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Analysis of Marine Drilling Risers Considering Steady Current, Surface Wave, Internal Solitary Wave, and Vessel Motion

Gao,

Li,

Cong

et al. 2023

Mathematical Problems in Engineering

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In this paper, considering combined excitations of the steady current, surface wave, internal solitary wave as well as, the vessel’s surge and heave motions, a time-domain model is established to investigate the lateral dynamic response of marine drilling risers. The finite element and Newmark-β methods are used to solve the nonlinear partial differential equation in the time-domain. The entire numerical solution process is realized by a self-developed program based on MATLAB. The reliability of the numerical solution program is verified by comparing it with published numerical results. The lateral dynamic responses of a real-scale marine drilling riser, usually used in the deep water oil/gas industry in the South China Sea, are studied. The impact level of each factor in the riser’s lateral dynamic response is discussed.

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Experimental research on internal solitary waves interacting with moored floating structures

Cited by 30 publications

References 22 publications

An experimental investigation on the hydrodynamic performance of floating bridge foundation with taut mooring system

An experimental investigation on the hydrodynamic performance of floating bridge foundation with taut mooring system

Investigations into Motion Responses of Suspended Submersible in Internal Solitary Wave Field

Dynamic Analysis of Marine Drilling Risers Considering Steady Current, Surface Wave, Internal Solitary Wave, and Vessel Motion

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