#7154. Fully 3D ship hydroelasticity: Monolithic versus partitioned strategies for tight coupling

December 2026publication date
Proposal available till 11-05-2025
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Journal’s subject area:
Ocean Engineering;
Mechanical Engineering;
Mechanics of Materials;
Materials Science (all);
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Abstract:
This paper analyzes the partitioned and monolithic strategies to simulate tightly coupled hidroelastic problems. The seakeeping hydrodynamics solver used is based on a first-order linear time-domain FEM model with forward speed and double-body linearization. The structural dynamics solver is based on a full 3D time-domain FEM with corotational shell elements accounting for the geometric non-linearity. Both solvers are implemented under the same programming framework, which allows to implement the monolithic strategy, and to minimize the communication overheads of the partitioned strategy. Two case studies are used to test and compare the partitioned and monolithic coupling: a flexible catamaran in oblique waves, and a large floating reticulated structure made of fiber reinforced plastic. In both cases, the monolithic strategy is between three and four times faster than the partitioned strategy. This project has been developed under the H20XX project FIBRESHIP aimed at developing the technology to design and build the structure of large-length vessels in fiber reinforced polymers.
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