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    Dynamics Modeling and Control of Mooring Lines While Cargo Vessels Loading

    , M.Sc. Thesis Sharif University of Technology Rasa, Roya (Author) ; Sayyadi, Hassan (Supervisor)
    large ships should only make very small horizontal movements at the berth for efficient loading. This is especially a concern in ports facing the open ocean directly, where high swells at sea can cause harbor oscillations and low-frequency surge motions of the ship. A developed mooring unit, the MoorMaster, which replaces conventional mooring lines is addressed here. The hydraulics of the system have a strong reducing effect on the motions of the moored ship. Measurements have shown that the surge motion of container ships was reduced from an amplitude in the order of 1 metre to an amplitude in the order of 5 centimetres, by using MoorMaster units. In here MoorMaster action is divided to two... 

    Exprimental and Numerical Analysis of Tlp Floating Offshore Wind Turbine with one Tendon Failure

    , M.Sc. Thesis Sharif University of Technology Helalat, Zeynab (Author) ; Tabeshpour, Mohammad Reza (Supervisor)
    Offshore wind energy is widely recognized as a renewable energy source that has the potential as a global energy source. Although the use of coastal wind turbines has been successful, it has been challenged in terms of visual, acoustic and environmental impacts. In addition, in terms of technology, it is difficult to achieve high levels of energy from coastal wind resources due to low annual average speed; Therefore, the wind energy industry is trying to make more use of the deep-water wind resources. However, before developing these types of deep-water turbines, economic challenges and technical problems must be resolved. Mooring failure is one of the major issues in the design of offshore...