| With the depletion of offshore fisheries, marine aquaculture gradually develops to deep sea. However, deep sea aquaculture is
susceptible to extreme weather. In this paper, an octagonal unit lifting cage is designed based on offshore oil extraction platform, which
provides a possibility to reduce the impact of extreme weather on aquaculture benefits. Aiming at the structural safety of unit lifting cage,
based on ANSYS/Mechanical, an analysis model of single-unit and four-unit cages in water and underwater state is established, and the
working conditions in different states are determined by phase angle search program. Finally, the stress and deformation of two groups of
cages in two states are calculated, which realizes the check of the strength of the cage. The simulation results show that the unit lifting cage
can effectively cope with extreme weather by lowering below the water surface. The connection between support leg and sleeve is the weak
point of unit lifting net box. Unit lifting cage provides a solution for modular, efficient and flexible deep-sea aquaculture. |
