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http://dx.doi.org/10.7837/kosomes.2017.23.5.595

A Comparative Study of Sea Trials and Production Processes for Propulsion Type Working Boats with a Tuna Purse Seiner  

Ha, Seoung-Mu (Green-Ship Research Division, Research Institute of Medium and Small Shipbuilding)
Jang, Ho-Yun (Green-Ship Research Division, Research Institute of Medium and Small Shipbuilding)
Seo, Hyoung-Seock (Green-Ship Research Division, Research Institute of Medium and Small Shipbuilding)
Seo, Kwan-Cheol (Department of Naval Architecture & Ocean Engineering, Mokpo National Maritime University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.23, no.5, 2017 , pp. 595-602 More about this Journal
Abstract
In Korea, much research and development have occurred to enhance the technological competitiveness of tuna purse seining fisheries. Due to these efforts, fishing efficiency has been improved with the development of radar, sonar and global positioning systems for fish detection and revisions to the hull forms of tuna purse seiners. However, for skiff boats, net boats and speed boats, which are auxiliary working boats mounted on tuna purse seiners, technology has lagged behind relative to the modernization of the main vessel. In this study, the hull of an existing propeller-based net boat with steel wire net to protect tuna was changed to the hull of a water jet propulsion vehicle to reduce resistance and improve maneuverability. As a result, a prototype of a water jet propulsion option was produced according to the aluminum structure strength standards specified by the Ministry of Oceans and Fisheries, and safety was confirmed by performing a drop test. Moreover, through a sea trial test, an existing net boat was shown to have a speed of 12.0knots and a towing force of 2,545 kgf at 2,500 RPM. The prototype had a speed of 26.7 knots and a towing force of 2,011 kgf at 3,200 RPM, which satisfied the towing capacity standards of auxiliary working boats mounted on tuna purse seiners.
Keywords
Aluminum net boat; Water jet propulsion; Drop test; Bollard pull test; Sea trial test;
Citations & Related Records
Times Cited By KSCI : 9  (Citation Analysis)
연도 인용수 순위
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