A model test study on the time history of ship-ice impact loads

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (4) : 7-14.

HUANG Yan, MA Gaoqiang, SUN Jianqiao

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Abstract

The ship-ice impact load is the governing load in the design of bow structures for ice class ships.A series of model tests were conducted in the ice tank of Tianjin University to investigate the time history of the ice impact loads.The tests were performed by towing the model ship striking large ice floes,and the ice impact loads on the model ship hull were measured by tactile sensors.According to the test results,the ice loading track on the ship hull during ship-ice impact was found to be parabolic,and the ice load increased firstly,then decreased.The maximum ice loading moment was found to be the moment when the ice deflected most.Furthermore,the maximum ice loading location was found near the 1/4 beam,and the time history of the corresponding local ice impact load was mainly characterized by a single-peak shape.

Key words

ship-ice impact / ice load / time history / model test / tactile sensor

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HUANG Yan, MA Gaoqiang, SUN Jianqiao. A model test study on the time history of ship-ice impact loads[J]. Journal of Vibration and Shock, 2019, 38(4): 7-14

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