Coupled Hydroelastic analysis for various offshore platforms
Research objectives are to
- Develop a three-dimensional time-domain numerical program that obtains real-time stress resultants resulted from interactions with random waves and various mooring-riser system,
- Develop an interface program that provides full distribution of all componential loads acting on offshore platform in the random seas, without costly CFD.
This research is motivated to improve accuracy of structural analyses by considering interactions of the loading components such as wave loads, mooring loads, and internal loads of the platforms, which are decoupled in conventional structural analysis. As preliminary results, the proposer already developed the program for x and y axes and applied them to simple moored geometries.
Sloshing-coupled hydroelastic analysis of FLNG
Research objectives are to
- Develop a three-dimensional simulation program that solves for hydroelastic motion and structural responses of FLNG, resulted from interactions of the FLNG’s motion including deformation, random waves, nonlinear mooring dynamics, and sloshing dynamics,
- Investigate corresponding deformation and stress resultants of the FLNG,
- Provide design guideline for the FLNG system.
This research is motivated by more flexible FLNG in a larger scale that has resonance risks by multiple dynamic components such as random waves, mooring lines and sloshing tanks. As preliminary results, the proposer already developed a 3D hydroelastic analysis program that couples the random waves, deformable body motion, and nonlinear mooring system. The hydroelastic analysis can further be applied to other dynamic components such as wind turbines or ice impacts.