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http://dx.doi.org/10.5916/jkosme.2016.40.9.847

A study on the northern sea route safety convoy using ship handling simulation  

Kim, Won-Ouk (Korea Institute of Maritime and Fisheries Technology)
Kim, Jong-Su (Division of Marine System Engineering, Korea Maritime and Ocean University)
Abstract
Due to global warming it is estimated that the arctic ocean route will be avaliable and traffic will increase by approximately year 2030. However, most navigation in the arctic is based on the ice breaker captains'orders, there is no exact measurement of convoy speed and distance between ships. So, this research was conducted to find out the minimum safe separation distance and minimum breaking distance via ship controling simulations, and the results are as stated. For breaking distances, for ships that have a lead distance which is 2~4 times the width of the ship and traveling less than 7 knots, crash astern and crash astern & hard rudder showed no significant difference. But ships traveling at 10 knots there was a decrease in breaking distance of 1L, from 3.5L to 2.5L. By analyzing 10 subject ships by crash astern the breaking distance for 5 knots is 0.98L~1.8L, for 8 knots is 1.9L~4.0L. The minimum safe separation distance in narrow sea-ways is 6L, but as the arctic sea-way is only one-way 3L is required. As the result, it is found that in the arctic the safe escort speed is less than 5 knots, if the escort speed is 8knots or more and by using crash astern & hard rudder to break the safe distance should be kept at 3.4L.
Keywords
Arctic ocean route; Ice breaker; Convoy speed and distance; Minimum safe separation distance; Minimum breaking distance;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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