Hydroelastic interaction in panel-water impacts of high-speed craft

Stenius, Ivan; Rosén, Anders; Kuttenkeuler, Jakob

doi:10.1016/j.oceaneng.2010.11.010

Cited by 86 publications

(32 citation statements)

References 4 publications

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“…They suggest that Smoothed Particle Hydrodynamics (SPH) can possibly be a tool to study these problems, but that a large amount of work is required to validate such models. One of SPH's major advantages is the ease of treating fluids presenting a free surface, together with the possibility to interact with FEM models, while its major limitation is the very expensive computational time due to the high number of particles needed to model the fluid, which limits its application to relatively small two dimensional models [41][42][43][44]. As an example, in [43] 21 millions particles are needed to obtain results similar to Wagner's solution for the water entry of a rigid wedges.…”

Section: Chaptermentioning

confidence: 99%

Hydroelastic Impacts of Deformable Wedges

Panciroli

2012

Dynamic Failure of Composite and Sandwich Structures

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This work investigates the slamming phenomenon experienced during the water entry of deformable bodies. Wedges are chosen as reference geometry due to their similarity to a generic hull section. Hull slamming is a phenomenon occurring when a ship re-enters the water after having been partially or completely lifted out the water. There are three more cases commonly defined as slamming in marine applications: bow-flare, wet-deck and green water slamming. These are all special cases of the general topic of water entry of a body. While the analysis of rigid structures entering the water has been extensively studied in the past and there are analytical solutions capable of correctly predicting the hydrodynamic pressure distribution and the overall impact dynamics, the effect of the structural deformation on the structural force is still a challenging problem to be solved. In fact, in case

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Section: Chaptermentioning

confidence: 99%

Hydroelastic Impacts of Deformable Wedges

Panciroli

2012

Dynamic Failure of Composite and Sandwich Structures

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“…Stenius et al [6] presented various impact simulations for high-speed crafts with different impact velocities, deadrise angles, boundary conditions, and panel properties. Based on Wagner's theory, Yamada et al [7] validated numerical methods and investigated the two-dimensional (2D) fullscale slamming impact by changing the rigidity of a wedge.…”

Section: Introductionmentioning

confidence: 99%

A study on slamming pressure on a flat stiffened plate considering fluid–structure interaction

et al. 2015

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Normally, the design slamming pressure on the bottomof a semi-submersible-type floating rig is determined in a simple way using the relative speed obtained from an air-gap analysis. However, few studies have taken a thorough, robust, and deep-background approach to the estimation of design pressure. To investigate the slamming pressure on the bottom of a semi-submersible rig, a simplified deformable stiffened plate of a zero-degree deadrise angle is simulated using the nonlinear FEM software LS-DYNA, which can take the influence of fluid-structure interaction (FSI) into account. Various parametric studies are carried out to examine the effects of structural flexibility, coupling stiffness, mesh size, velocity, stiffener size, and air cushion. The pressure response on the plate by the coupling of fluid and structure is studied and the FSI effect of each parameter is discussed. Then, equivalent transient and static loads that result in the same maximum or permanent deformation as FSI are evaluated for design purposes through a series of parametric studies.

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“…Hydroelastic criterion and methods for characterization have been presented by Faltinsen (1999Faltinsen ( , 2000 and Stenius, Rose´n, and Kuttenkeuler, 2011. The hydroelastic impact event is typically characterized based on a relation between loading Journal of Coastal Research, Special Issue No.…”

Section: Introductionmentioning

confidence: 99%

“…73, 2015 periods and natural periods of vibration of the structure. The method combines computational fluid dynamics with dynamic finite-element techniques to predict the hydroelastic response of a structure in the time domain by Maki et al, 2011, Panciroli, Abrate, and Minak, 2013, Piro and Maki, 2013, and Stenius, Rose´n, and Kuttenkeuler, 2011 In general, the study of flat-plate slamming has important significance and attracts the interest of many researchers. Although analytical, numerical and experimental means have all been used, it still lacks standardized criteria to estimate slamming loads on flat bodies penetrating water surface.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Slamming Pressure and Hydroelastic Vibration of a Flat Plate during Water Entry

Yan

Zhang

Sun

et al. 2015

Journal of Coastal Research

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Yan, F.; Zhang, C.; Sun, L.; and Zhang, D., 2015. Experimental study on slamming pressure and hydro elastic vibration of a flat plate during water entry.The real impact of water or waves on coastal and ocean engineering infrastructures is anticipated to be significant. It is a complicated problem to couple a deformable structure with an air-water fluid flow. The paper studies the slamming pressure and hydroelastic vibration of a flat plate by a series of drop tests. The peak pressure and related air-water status are recorded simutaneously. Part of the real physical field is revealed for future numerical model of strong interaction with fluid-solid system. It is found that a thin layer of air, which is enclosed by water raised up at both ends, is trapped into the interface of the plate and water. The peak pressure occurs at the plate center and keeps steady in repetitive tests. Hydroelastic vibration，which was stimulated by impacting load, makes the pressure to decrease periodically in a turbulent air-water field. Characteristic frequency of pressure signals agrees with the wet modes of the plate. ADDITIONAL INDEX WORDS:Slamming, hydroelastic, flat plate, air-water.

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Hydroelastic interaction in panel-water impacts of high-speed craft

Cited by 86 publications

References 4 publications

Hydroelastic Impacts of Deformable Wedges

Hydroelastic Impacts of Deformable Wedges

A study on slamming pressure on a flat stiffened plate considering fluid–structure interaction

Experimental Study on Slamming Pressure and Hydroelastic Vibration of a Flat Plate during Water Entry

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