CAJ | 학술논문

根据捕捞方式与运营模式特点，对变水层大型拖网渔船船型技术经济论证方法进行了研究。以船长、船宽、型深、方形系数和设计自航航速为船型优化参数，选取净现值、渔捞效果系数、投资偿还期、吨鱼油耗和吨鱼成本为船型论证经济指标，建立了渔获产量估算及其经济性计算模型，利用指标权重法建立了综合评价函数，利用参数分析法对变水层大型拖网渔船进行船型优选，对论证中的不确定性因素进行敏感性分析。以运营于西非某海域的变水层大型拖网渔船为实例进行计算与优化分析，得到变水层大型拖网渔船最优船型为船长82.4 m、船宽16.2 m、型深9.5 m、吃水5.79 m、方形系数0.68、航速13.2 kn。
근거포로방식여운영모식특점，대변수층대형타망어선선형기술경제론증방법진행료연구。이선장、선관、형심、방형계수화설계자항항속위선형우화삼수，선취정현치、어로효과계수、투자상환기、둔어유모화둔어성본위선형론증경제지표，건립료어획산량고산급기경제성계산모형，이용지표권중법건립료종합평개함수，이용삼수분석법대변수층대형타망어선진행선형우선，대론증중적불학정성인소진행민감성분석。이운영우서비모해역적변수층대형타망어선위실례진행계산여우화분석，득도변수층대형타망어선최우선형위선장82.4 m、선관16.2 m、형심9.5 m、흘수5.79 m、방형계수0.68、항속13.2 kn。
The method of technical and economical evaluation and optimization of ship form for large middle-water trawlers were investigated based on the fishing model and operation characteristics. The optimized design parameters and estimation models were reasonably selected, the evaluating economical indices fit for fishing vessels were syn-thetically discussed, including net present value, coefficient of fishing effect, investment payback period, fuel con-sumption per ton of fish and cost per ton of fish and the model for evaluating fisheries quality and calculating econo-my was developed. The comprehensive evaluation function was established with index weight method. The parame-ter analysis method was used to optimize selection of ship form for large middle-water trawlers, and the uncertainty factors were considered with sensitivity analysis method. With the developed universal program, the ship form of large middle-water trawlers used in West African waters was optimized as a case study. It is found that the optimal-ly selected ship form parameters for large middle-water trawlers are described as ship length of 82. 4 m, ship width of 16. 2 m, draught of 5. 79 m, block coefficient of 0. 68, and service speed of 13. 2 kn.