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Maneuver Modeling and Nonlinear Analysis of a High Speed Ship Considering Thrusting and Propulsive Systems

Miraki Baseri, Rahim | 2013

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 44127 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Sayyadi, Hassan; Mehdigholi, Hamid
  7. Abstract:
  8. Ship maneuverability is so important from different aspects. According to the regulations of International Maritime Organization (IMO), every vessel has to meet the minimum requirements of mentioned rules. Consequently, prediction of ship maneuverability in early stages of the ship design has become to one of the most necessary steps for shipbuilding and design companies. In this research work maneuvering of a high speed ship has been investigated using three different propulsive modes, considering propeller and rudder systems, azipod propeller and waterjet systems. First of all, hydrodynamics equations of each cases while considering different motion modes such as surge, sway, yaw, and roll had been developed and nonlinear coupling effects between them are under considerations. Craft under survey is a high speed container vessel and its full-scale hydrodynamics coefficients had been used here. Surge, sway, roll, and pitch velocities in both cases are depicted in water plane maneuvering and it can be concluded that azipod propulsion can be used for ship maneuvering when cruse speed is limited and maneuvering radii is small. On the other hand when cruse speed is enough large, using propeller and rudder systems and waterjet systems for large amount of maneuvering radii is advised
  9. Keywords:
  10. Ship Maneuvering ; Hydrodynamic Analysis ; Ship Propeller ; Rudder Ship ; Azipod System ; Waterjet

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