Published on June 2023 | Marine Engineering

Simulation Of Mariner Class Vessel Using Different Controllers

Marine Industry is a fast developing and a field which is given very much importance these days for the global development in trade and transport. Ships contribute a lot in sea food industry, bulk and heavy materials and fluid transportation and leisure and tourism industries which all are the backbone of any country. But as it is very much important the number of ships that are sailing day by day and the workers working behind this industry is lot. These workers must undergo very severe and high-risk operations in the working which makes there life very much hectic in these ships. To reduce the work effort and the ship trafficking ship navigation autopilot systems where designed. But these Autopilots also has its own flaws or difficulties such as when we set a course the ship may reach at a position which is different from the course which was been set due to environmental disturbances. Therefore, different controllers are used for reducing these errors. In this project mathematical modelling of the ship which is used for installing the controllers for the navigation purpose is discussed and helping to reduce the error which has occurred. It will help us in getting the optimised error as the result it is possible to find which controller can be used as the best for the navigation and the guidance purpose. In mathematical modelling out of 6 degree of freedom 3 degree of freedom (surge, sway, yaw) ship movement is considered. Modelling is based on a large container ship in heading plane. Autopilot circuit is designed in SIMULINK, then the data from mathematical modelling is applied in the closed loop circuit. Final output is analysed using different controllers and mathematical modelling parameters and an optimized value is formed.