Abstract
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.
| Original language | English |
|---|---|
| Article number | 011501 |
| Number of pages | 8 |
| Journal | Journal of Offshore Mechanics and Arctic Engineering |
| Volume | 139 |
| Issue number | 1 |
| Early online date | 20 Sep 2016 |
| DOIs | |
| Publication status | Published - 28 Feb 2017 |
Keywords
- offshore pipelines
- offshore safety
- probabilistic models
- offshore structures
- structural safety
- forces motions
- pipelines
- risk analysis
- offshore reliability
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Cite this
Gazis, N., Kougioumtzoglou, I. A., & Patelli, E. (2017). Ice gouge depth determination via an efficient stochastic dynamics technique. Journal of Offshore Mechanics and Arctic Engineering, 139(1), [011501]. https://doi.org/10.1115/1.4034372