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논문 기본 정보

자료유형
학술저널
저자정보
Byung Young Moon (Kunsan National University) Kwang Bok Park (Beon Young Heavy Industry) Young Jun Hong (Beon Young Heavy Industry) Sung Bum Lee (Pusan National University) Ki Yeol Lee (Kunsan National University)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제39권 제5호
발행연도
2015.6
수록면
527 - 535 (9page)

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초록· 키워드

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As a new technical approach, a hydraulic and magnetic clamp device was attempted to realize a magnetic clamp crane system that uses 8 simultaneously actuating individual hydraulic cylinders. Through this approach, a Sr type of ferritic permanent magnet (SrO ? 6Fe₂O₃), not the previously employed electro-magnet, was utilized for the purpose of lifting and transporting the heavy weighted and oversized curved steel plates used for manufacturing the ships. This study is aimed at manufacturing and developing the hydraulic magnetic clamp prototype, which is composed of three main parts ? the base frame, cylinder joint, and magnet joint ? in order to safely transport such curved steel plates. Furthermore, this research was pursued to conduct a performance evaluation as to the prototype manufacture and acquire the planned quantity value and the development purpose items. The most significant item for a performance evaluation was estimated for the magnetic adhesive force (G) and in this process, a ferritic permanent magnet (Sr type) with 3700~4000 G of residual induction (Br) and 2640/2770 Oe of coercive force (Hc) was utilized. In addition, other relevant items such as hoist tension (kN), transportation time (sec), and the applied load (Kgf) exerted on the hydraulic cylinders were also evaluated in order to acquire the optimum quantity value. As a result of the evaluation, the relevant device turned out to be suitable for safely transporting the curved steel plates.

목차

Abstract
1. Introduction
2. Test Method and Procedure
3. Test Analysis and Consideration
4. Conclusions
References

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