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PC-CADRA에서 내부재 부재(PIECE) 네스팅 S/W개발에 관한 연구
박제웅(Je-Woung Park),한창봉(Chang-Bong Han),이현상(Hyun-Sang Lee) 한국해양공학회 1997 韓國海洋工學會誌 Vol.11 No.4
The nesting of parts cut on raw steel plate has been a subject of interest to the shipbuilding industry for many years. Nesting is defined operation of layout of the parts on the raw material with minimizing the waste rate. Therefore, it is very important to optimize the cutting area. Since the existing nesting programs are prepared for expensive workstations and the expert, it is needed to develop nesting program for personal computer to improve the technology of small/middle sized shipyards and their productivity. This study involves development and application of appropriate optimization technique to solve the problem of plate nesting. And the appropriate D/B for storing nesting data developed, the function of D/B is introduced in this paper.
69G/T급 현측식 안강망어선 최적기본제원 프로세스에 관한 연구
박제웅,이현상 조선대학교 생산기술연구소 1996 生産技術硏究 Vol.18 No.2
This paper is to study the decision of optimum ship size of 69G/T stow-net fishing vessel. The main task is to developed the basic design and economic analysis model by using the optimization techniques in terms of objective function and numerous constraints like : speed, fishing quantity, fishing range, CPUE (capacity per unit effort) and weight, ratio of main dimensions, etc. Therefore, in this paper, the process design of stow-net fishing boat is constructed with optimization of the design variables called the economic optimization criteria, and the objective function represents the criterion which is CBR(cost benefit ratio) such as the ratio of revenue/cost. The results are as follows. 1. It is developed the decision S/W of optimum ship size in 69 ton stow-net fishing boat which is constructed with optimization of the design variables called the economic optimization criteria. 2. The main demensions of optimum ship size of 69G/T stow-net fishing boat are obtained as L=25.1m, B=6.6m, D=2.57m, Cb=0.645, T/D=O.74, △(displacement) = 203ton, with voyage speed 11 knot ..