Research On Mooring Reliability Of Fishing Vessels In Ports Based On AQWA Simulation Software

The stability of fishing vessels is a long-term and common problem.It has always been the focus of research in related fields.Due to the large difference in environmental conditions between sea and ports,the hydrodynamic performance and stability conditions between ships are also far apart.It is difficult to calculate the stability of the ship's navigation and parking.A large number of population and economic factors have been gathered in the coastal areas,making it more difficult to ensure safety on the coast of the sea.The uncertainty of the marine environment has emphasized the importance of fishery disaster prevention.Based on the reality of fishing boat mooring,this paper selects the 450 HP standard ship type fishing vessel and the corresponding fishing port environment as the analysis object,establishes the calculation model based on the fishing boat data,and carries out the hydrodynamic analysis of the fishing boat model.The numerical simulation is used to study the stability of the hull itself and the required anchoring force under the given load.The numerical simulation of the flow of the fishing vessel,the calculation of the wind load of the fishing vessel,the calculation of the wave load and hydrodynamic derivative of the fishing vessel,and the fishing boat are carried out.The mooring scheme was designed to avoid the berth design during the typhoon.Five mooring methods were designed for single and double vessels.Then,using software simulation method,the time domain analysis of several mooring methods of single ship and double ship is carried out respectively,and the corresponding six-degree-of-freedom motion situation is obtained,and the force and anchor point of each anchor chain are obtained.The anchoring force was carried out,and the data were analyzed and compared.From the aspects of system safety research and reliable economic research,the influence of mooring method on the stability of fishing vessels under foreseeable bad sea conditions was discussed.selected.Through software simulation,the method of improving the safety of mooring of fishing vessels was explored from the aspects of mooring line material and mooring design,and multiple scheme comparisons were carried out to maximize the risk control and improve the accuracy.The purpose of reducing the risk of serious losses caused by extreme weather provides a reference and basis for the safety management of fishing ports.