A simplified model of the motion of a grounding iceberg for determining the gouge depth into the seabed is proposed. Specifically, taking into account uncertainties relating to the soil strength, a nonlinear stochastic differential equation governing the evolution of the gouge length/depth in time is derived. Further, a recently developed Wiener path integral (WPI) based approach for solving approximately the nonlinear stochastic differential equation is employed; thus, circumventing computationally demanding Monte Carlo based simulations and rendering the approach potentially useful for preliminary design applications. The accuracy/reliability of the approach is demonstrated via comparisons with pertinent Monte Carlo simulation (MCS) data.
Ice Gouge Depth Determination Via an Efficient Stochastic Dynamics Technique
Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received September 26, 2015; final manuscript received July 19, 2016; published online September 20, 2016. Assoc. Editor: Søren Ehlers.
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Gazis, N., Kougioumtzoglou, I. A., and Patelli, E. (September 20, 2016). "Ice Gouge Depth Determination Via an Efficient Stochastic Dynamics Technique." ASME. J. Offshore Mech. Arct. Eng. February 2017; 139(1): 011501. https://doi.org/10.1115/1.4034372
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