Grounding is one of the major threats to ships under operation. In this paper, the ship model grounding experiments are conducted in a water tank to study the coupling effects of both internal mechanics and external dynamics. The influence of surrounding water on ship motions during grounding is taken into account. During testing, varying rock penetrations are considered to study the grounding damage. Experimental results such as the horizontal grounding forces and damage extents are measured and analyzed. The results show that the grounding damage depends on the rock penetration. Besides, the surrounding water of the ship model has a big influence on grounding damage assessment.

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