Evaluation of Motion Dynamics Characteristics of Fishing Boats in Bengkalis Island
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Date
2016-08-27
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Abstract
Fishermen in Bengkalis Island tend to choose alternative materials such as fiberglass instead of wooden materials for
constructing their ship. The fiberglass is always available, the price is affordable and it is not require many equipments in the
process of ship construction. As the fiberglass is lighter than wood, the design of fiberglass fishing boat is need to be
evaluated, especially the dynamics of motion of the vessel that determine whether the vessel meets the criteria for the comfort
sailing. Prior to the evaluation, the vessel was redrawn and the dynamic motion parameters that were evaluated include the
motions of the heave, pitch and roll. There were 4 types of ship that have same capacity (3GT), but they have different main
size. Based on the value of heave motion acceleration, it can be concluded that the heave motion meets its criteria because the
acceleration of vertical motion is less than 0,315 m/s2 (< 0.315 m/s2) and it is categorized as Not Uncomfortable. For the roll
motion, not all of ships meet the criteria. The value of the roll periods based on the result of evaluation, the closest criteria is
vessel-2 because it is in the range of 5.5 to 7.0 seconds. The size of this ship is of 10.23 meters length, 2 meters width, 1.33
meters height and 0.44 meters draft
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Keywords
Fiberglass, Fishing, Vessel, Wood