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Ocean Systems Engineering
  Volume 9, Number 2, June 2019 , pages 157-177

An investigation into the motion and stability behaviour of a RO-RO vessel
Poonam Mohan and A.P. Shashikala

     Studies on motion response of a vessel is of great interest to researchers, since a long time. But intensive researches on stability of vessel during motion under dynamic conditions are few. A numerical model of vessel is developed and responses are analyzed in head, beam and quartering sea conditions. Variation of response amplitude operator (RAO) of vessel based on Strip Theory for different wave heights is plotted. Validation of results was done experimentally and numerical results was considered to obtain effect of damping on vessel stability. A scale model ratio of 1:125 was used which is suitable for dimensions of wave flume at National Institute of Technology Calicut. Stability chart are developed based on Mathieu\'s equation of stability. Ince-Strutt chart developed can help to capture variations of stability with damping.
Key Words
    in-tact stability; Mathieu
Poonam Mohan and A.P. Shashikala: Department of Civil Engineering, National Institute of Technology, Calicut, India

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