Author(s): Xuesong Xu; Baoyu Ni; Yanzhuo Xue; Ying Xu
Linked Author(s):
Keywords: Collision; CFD-DEM-FEM; Two-way coupling; Iceberg; Structural response
Abstract: The structural safety assessment of ice-going ships has long been a major challenge. Many factors affect the structural safety performance of ice-going ships, including the ice condition, ice motion, ice failure, fluid effects, as well as the structural response of the hull. The collision between the ship structure and an iceberg could be one of the most dangerous conditions. In order to simulate this process and assess the structural safety, this paper establishes a CFD-DEM-FEM fully coupling numerical model, which can simultaneously consider fluid effects, structural responses, and ice damage. In this model, the data interaction of ice forces, fluid forces, and structural deformations is conducted in real time. Numerical simulations of collisions between a framed plate structure of hull and an iceberg were carried out. The ice forces and deformations from the numerical calculation results showed good consistency with those of the model test, verifying the accuracy of the numerical model. On this basis, the influence of stiffener configuration on the structural response of the framed plate structure during collision with the iceberg was investigated.
Year: 2026