engleski

Comparison of ship launching evaluation methods

Ship launching is a complex event, particularly when uncommon ship structures are in concern. Due to that, shipyards perform pre-launching calculations to determine ship’s speed, acceleration, traveling distance, maximum draft etc. These calculations are reliable and virtually all of the ship launchings are successful. Due to the same reason, they are rarely verified. An attempt is made here to compare different ship launching evaluation methods. Particular launching event, occurred in Uljanik shipyard, was recorded by high-precision differential GPS (DGPS) measuring device and a video camera. Obtained information were analyzed and compared with shipyard and theory based ship launching calculations. A margin for errors was detected and results discussed.

longitudinal ship launching; DGPS record; launching calculation

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