Analysis Of Hydrodynamic Performance And Mooring System Of Multi-Body Floating Breakwater

Floating breakwaters are easier to install than conventional breakwaters.It can be exchanged for water quality,can be built in different environments,and can be moved.Floating breakwaters are the best choice for deeper water depths or when the seabed environment is not suitable for traditional breakwaters.Therefore,scholars have conducted extensive research on floating breakwaters.This paper simulates the hydrodynamic performance and mooring system of multi-body floating breakwater.,based on the floating anti-wave technology of the South China Sea near the island reef.In this paper,the basic principle of design and analysis of floating positioning system is briefly introduced,and the accuracy of multi-floating hydrodynamic performance simulation in AQWA software is verified.A "capping method" was used to correct the hydrodynamic model of the floating breakwater.Then use the AQWA-LINE module in the AQWA software to simulate the hydrodynamic parameters of the multi-body floating breakwater,including the amplitude response operator(RAO),wave-damping,additional mass,the order wave force and the second-order wave force.At the same time,the anti-wave and wave-eliminating performance of the multi-body floating breakwater is studied.The effects of the island reef topography on the hydrodynamic performance of the multi-body floating breakwater are compared and analyzed.It is found that the hydrodynamic performance of the floating breakwater under the island reef changes due to the change of water depth and the hydrodynamic interference of the terrain on the floating breakwater.The motion response of the floating breakwater changes due to the topographic interference of the incident wave.The wave force of the floating breakwater changes with the open sea area,and the wave-eliminating performance of the multi-body floating breakwater is simply analyzed.Based on the hydrodynamic simulation of the multi-body floating breakwater,the influence of the fender and mooring line length on the floating breakwater is analyzed by time domain simulation,and then the motion response of the floating breakwater and the response of the mooring line under different sea conditions are analyzed.The analysis and research are carried out to obtain the motion response characteristics of the shallow multi-body floating breakwater and the response characteristics of the mooring line.Finally,the numerical simulation of the survivability of the mooring system under severe sea conditions is carried out,and the survivability of the mooring system under the harsh sea conditions is analyzed.The numerical simulation of the multi-body floating breakwater and the design of the mooring system under the harsh sea conditions are carried out.Research provides experience.