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According to the IMO International Maritime Solid Bulk Cargo Rules, solid bulk cargo, including iron ore concentrate powder, nickel ore powder, etc., is classified as Group A cargo, which is easily fluidized cargo. This type of goods is in the form of solid particles and often contains moisture. Under the combined effects of harsh environmental conditions and ship movement during sea transportation, the gradual increase in moisture content of such goods can cause solid particle cargo to transform into a liquid phase, which means fluidization occurs. The fluidized cargo can move within the cargo hold, greatly affecting the stability of the ship. In severe cases, it can cause the ship to capsize and cause huge personnel and property damage. Therefore, in order to ensure the safety of transporting such goods by sea, it is necessary to conduct research on goods that are prone to flow.A 3D cargo hold model with equal proportions was established, and the model was reduced by ten times during simulation. Due to the harsh marine environment, where strong winds and waves cause ships to move, the main movement that causes fluidization of cargo is roll motion. Therefore, the LIGGHTS software is used to set up a cargo hold model for a roll motion with a period of 10 seconds and an amplitude of 20 ° to simulate the marine environment and analyze the movement of granular cargo in the cargo hold.
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