engleski

Non-linear fem study of a ship grounding

Ship grounding is a complex event determined by ship speed and heading, type of the obstacle in a way, hydrodynamic effects and other factors. Nonlinear finite element method (NFEM) analysis is a sophisticated tool for modeling and analysis of such events. Obtaining realistic results, however, requires careful modeling. This paper presents a concept for ship grounding numerical model. The 3D model of a ship was generated. Hull is modeled using beam elements, while fore peak is modeled in detail. Nonlinear buoyancy is taken into account. Several types of fixed ground were considered. Ship particulars and mass, as well as basic kinetic parameters were chosen to resemble Marko Polo, grounded on Sit island in October 2009. Results are presented and comment is made on possible application and improvement of the method.

ship grounding; hard grounding; non-linear finite element method; 3D FEM model

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