针对深海复杂恶劣的环境条件，本文根据三维势流理论和凝集质量法，建立了养

Aiming at the complex and harsh environment conditions in the deep sea, this paper establishes a numerical model of the breeding ship and mooring system based on the three-dimensional potential flow theory and the agglutination quality method. Through frequency domain analysis, the amplitude response operator, additional mass, damping and other related parameters of the breeding ship under unit regular waves are obtained; then the hull frequency domain results are imported into the time domain analysis, and the simulation results are obtained under the combined action of wind, waves and currents. , The time history curve of the movement of the breeding boat and the time history curve of the effective tension of the mooring line, and the results are analyzed in detail. The results show that the culture vessel can maintain a good condition in working sea conditions. Under extreme sea conditions, the motion response exceeds the specified range and should be avoided in time. Compared with the wind, wave and current direction of 180°, when the current direction is 90°, the culture vessel is horizontal. The amplitude of the swaying motion increases, the amplitude of the swaying motion decreases, and the yaw angle increases. At the same time, the change of flow direction will also cause the effective tension of the mooring line to change; the ratio of the maximum tension to the minimum breaking force of each mooring line is greater than 1.67 , Meet the safety requirements.

In view of the complex and harsh environmental conditions in the deep sea, a numerical model of the breeding vessel and mooring system is established according to the three-dimensional current theory and the condensation quality method. Through frequency domain analysis, the magnitude response operator, additional mass, damping and other related parameters of the farmed vessel under the unit rule wave are obtained, and the results are imported into the time domain analysis, and the results are analyzed in detail by simulating the time curve of the movement time curve and the effective tension of the mooring cable under the combined action of wind and wave flow. The results show that the farmed vessel can maintain a good state in the working sea conditions, and the motion response under the extreme sea conditions exceeds the prescribed range and should avoid risk in time The value increases, the vertical motion amplitude decreases, the shaking angle increases, and the change of flow will also cause the change of the effective tension of the mooring cable, and the ratio of the maximum tension and minimum break force of each mooring cable is greater than 1.67 to meet the safety requirements.

In view of the complex and harsh environmental conditions in the deep sea, a numerical model of the breeding ship and mooring system is established based on the three-dimensional potential flow theory and agglutination mass method. Through the frequency domain analysis, the amplitude response operator, additional mass, damping and other related parameters of the breeding ship under the unit regular wave are obtained; Then, the frequency domain results of the hull are imported into the time domain analysis, and the motion time history curve of 12000s long breeding ship and the time history curve of mooring line effective tension under the combined action of wind, wave and current are simulated, and the results are analyzed in detail. The results show that the aquaculture ship can keep good state in the working sea condition, and the motion response under the extreme sea condition exceeds the specified range, so it should avoid danger in time; And the direction of wind, wave and current is 180 ° When the flow direction is 90 ° At the same time, the change of flow direction will also cause the change of mooring line effective tension; The ratio of the maximum tension to the minimum breaking force of each mooring line is greater than 1.67, which meets the safety requirements.<br>