대한조선학회 특별논문집 (Special Issue of the Society of Naval Architects of Korea)
- 대한조선학회 2011년도 특별논문집
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- Pages.55-62
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- 2011
설계 개선을 통한 선박의 계류 시스템 최적화 사례 소개
Introduction of Optimized Design of Anchoring System through Design Modification of Pocket and Chain Compressor
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이재훈
(현대중공업(주) Drill장비시스템설계부)
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Lee, Jae-Hoon
(Drilling Equipment System Design Dep't, Hyundai Heavy Industries Co., Ltd.)
- 발행 : 2011.09.30
초록
Although the performance of the commercial vessel has been dramatically improved through innovations, there has been no big changes on the traditional anchoring method of commercial vessels, both on design and operation until now. In this paper, two cases of design modifications were introduced for optimized design of pocket type anchor handling, which resulted in improved performance of the vessel's anchoring. From the first time fully balanced type anchors were applied on vessels in Korean shipyard, main design problem on this application was that the anchor doesn't normally slide into the pocket when the anchor fluke is not in line with pocket, as the anchor freely rotates by the swivel on forerunner. In order to prevent the problem, swivel has been deleted on the forerunner to prevent anchor rotation until now, but this solution caused problems such as twist lock of anchor chain, restriction of windlass direction, etc. On this paper, one of the solution is introduced to overcome the design problem by tilting the hawse pipe to some extent, which makes anchor turned at the time anchor ring touches the pocket skirt and that it properly slides into the pocket. Secondly, one of the solution is introduced to overcome misalignment problem between anchor chain cable and roller of chain compressor, which has been frequently occurred, by modification of roller design.