Effect of ship speed on ship’s ice resistance with ship’s vertical motions included
2013 (English)In: Proceedings of the PRADS2013, Seoul: The Society of Naval Architects of Korea , 2013, 1032-1037 p.Conference paper (Refereed)
In this paper, the relations between ice resistance, shipspeed and ship motions are investigated with a numericalmodel simulating the icebreaking process with ship'smotions in 6 degrees of freedom (DOF). The coupledmotions of ship are considered in all 6 DOF togetherwith the corresponding environmental forces. The couplingbetween ship's movement and the breaking of iceis solved step by step with the update of ice edge geometryand ship's kinematics variables. Time series ofglobal ice loads (forces and moments) and ship motionsare obtained correspondingly. The effect of ship's verticalmotions is studied by comparing results betweenreduced-order-models and the 6-DOF model with hullspeeds and ice thickness being parameters. The numericalmodel was validated with the Swedish icebreakerTor Viking II in previous works, and this vessel is usedin this paper too as the physical prototype of the casestudy. Results are compared to full scale data as well asLindqvist’s empirical formula.
Place, publisher, year, edition, pages
Seoul: The Society of Naval Architects of Korea , 2013. 1032-1037 p.
Numerical model, level ice, ice resistance, hull speed, ship motions
Marine technology Offshore technology Ship technology
IdentifiersURN: urn:nbn:no:ntnu:diva-24775ISBN: 978-89-950016-0-8 SetISBN: 978-89-950016-1-5 Volume 1ISBN: 978-89-950016-2-2 Volume 2OAI: oai:DiVA.org:ntnu-24775DiVA: diva2:719932
12th International Symposium on Practical Design of Ships and Other Floating Structures (PRADS)