Hull structural response prediction using distortion base modes
Paper in proceeding, 2021

The hull structure health monitoring system is attracting attention by many ongoing vessels to prevent possible failure of the hull structure. As one of these efficient monitoring methods, the conversion method based on the mode superposition assumption had been introduced (Baudin et al., 2013, Bigot et al., 2015). It has the advantage that once the modal amplitudes are determined, it enables to estimate lots of structural behavior such as hull girder loads or stresses of structural members in a simply way. In this research, a case study of applying the conversion method on floating production storage and offloading unit (FPSO) hull model is introduced. Furthermore, the empirical processes in the mode selection stage have been optimized with respect to the target performance accuracy. The validity of this modification is verified by several case studies.

fatigue analysis

ship modal analysis

structure health monitoring


Dae-Yong Lee

Seoul National University

Beom-Seon Jang

Seoul National University

Jonas Ringsberg

Chalmers, Mechanics and Maritime Sciences (M2), Marine Technology

Developments in the Analysis and Design of Marine Structures - Proceedings of the 8th International Conference on Marine Structures (MARSTRUCT 2021)

978-1-032-13665-3 (ISBN)

the 8th International Conference on Marine Structures (MARSTRUCT 2021)
Trondheim, Norway,

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Mechanical Engineering

Applied Mechanics

Vehicle Engineering

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