详情

原文传递 FINITE ELEMENT APPROACH TO THE SHIP GROUNDING EVENT

题名：	FINITE ELEMENT APPROACH TO THE SHIP GROUNDING EVENT
作者：	J.KAJASTE
关键词：	rounding；element；finite；event；ship；proa；abaqus；innovation；quantitative；statistics
摘要：	According to statistics, ship grounding is a fairly frequent type of accident in Finnish waters. The structural innovations, such as double bottom hull and internal subdivisions, improve ship safety and diminish risk of environmental disasters (oil spilling). Actually, dynamics of this kind of cargo vessel collision with a rigid obstacle (rock) is considered in terms of contact problem using the FE program ABAQUS (Explicit version). Preliminary buckling analysis enables to find possible distorted shape of the hull and, after superposition with initial intact form, to create its initial imperfect configuration. Postbuckling static stress-strain and dynamic contact analysis provides the numeric information about consequences of ship grounding in different circumstances. ABAQUS explicit contact algorithm may help to evaluate quantitatively (in terms of stress and deformation state, kinetic energy dissipation due to plastic strain accumulation etc.) the extent and nature of damages.
报告类型：	科技报告