Risk Forecast Analysis of Semi-Submersible Ship Pontoon Remove
In order to study the risk of the pontoon moving of semi-submersible ship on the special track by means of sliding car,and to guide the safety of pontoon moving,the structure,equipment and other accessories of the pontoon are modeled,and the weight center of gravity is calculated through the model to ensure the accuracy of the calculation of the moving of the pontoon.According to the sea conditions of the docking area of the ship,the lateral acceleration of the ship is calculated using the method of three-dimensional potential flow theory,and the inertial force of the pontoon is calculated according to the lateral acceleration.The possibility of overturning and relative displacement is predicted according to the calculation to ensure the safety of the pontoon moving process.The results show that there is no possibility of displacement or overturning of the pontoon.The analysis improves the safety of pontoon moving operation and provides reference for other ships when moving pontoon.