渔业现代化
漁業現代化
어업현대화
FISHERY MODERNIZATION
2014年
5期
54-59
,共6页
拖网渔船%船型优化%网次产量%技术经济论证
拖網漁船%船型優化%網次產量%技術經濟論證
타망어선%선형우화%망차산량%기술경제론증
trawler%ship form optimization%net yield%technical and economic evaluation
在拖网渔船的船型论证中，需要考虑渔船、渔场、渔港（或锚地）和渔业市场等因素，结合渔场资源情况，选择与渔船舱容相匹配的合理的网具以达到寻求最优船型的目的。通过研究拖网渔船船型与网具和网次产量的关系，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等为船型论证经济指标，利用指标权重法构建了船型优化模型，对拖网渔船进行了船型技术经济论证。以运营于南美某海域的变水层大型拖网渔船为计算实例进行了优化分析，得出了最优船型方案及其网次产量，进而可参照选择船型参数与网具。在拖网渔船的论证阶段可利用该优化方法可达到对拖网渔船进行船型与网具优化分析的目的。
在拖網漁船的船型論證中，需要攷慮漁船、漁場、漁港（或錨地）和漁業市場等因素，結閤漁場資源情況，選擇與漁船艙容相匹配的閤理的網具以達到尋求最優船型的目的。通過研究拖網漁船船型與網具和網次產量的關繫，以船長、船寬、型深、方形繫數和設計自航航速為船型優化參數，選取淨現值、漁撈效果繫數、投資償還期、噸魚油耗和噸魚成本等為船型論證經濟指標，利用指標權重法構建瞭船型優化模型，對拖網漁船進行瞭船型技術經濟論證。以運營于南美某海域的變水層大型拖網漁船為計算實例進行瞭優化分析，得齣瞭最優船型方案及其網次產量，進而可參照選擇船型參數與網具。在拖網漁船的論證階段可利用該優化方法可達到對拖網漁船進行船型與網具優化分析的目的。
재타망어선적선형론증중，수요고필어선、어장、어항（혹묘지）화어업시장등인소，결합어장자원정황，선택여어선창용상필배적합리적망구이체도심구최우선형적목적。통과연구타망어선선형여망구화망차산량적관계，이선장、선관、형심、방형계수화설계자항항속위선형우화삼수，선취정현치、어로효과계수、투자상환기、둔어유모화둔어성본등위선형론증경제지표，이용지표권중법구건료선형우화모형，대타망어선진행료선형기술경제론증。이운영우남미모해역적변수층대형타망어선위계산실례진행료우화분석，득출료최우선형방안급기망차산량，진이가삼조선택선형삼수여망구。재타망어선적론증계단가이용해우화방법가체도대타망어선진행선형여망구우화분석적목적。
In the optimization and analysis of trawlers ship forms, the factors such as the ship itself, fishing ground, fishing anchorage and fishery market and fishery resources should be considered to select fishery net matching to ship fishing capacity so as to seek the optimal ship forms. In this pager, the relation of ship forms and fishing net yield of trawlers was studied, based on which, an optimization model of trawlers ship forms was designed by using index weight method with ship length, molded breadth, molded depth, block coefficient and design speed as optimized design parameters, and the net present value, fishing effect coefficient, investment payback period, tons of fish oil, tons of fish cost were selected as economic evaluation indexes of ship forms. And the technical and economic evaluations of ship forms were conducted. Taking the change-layers big trawlers operating in South America waters as a calculation case to optimize and analyze the model, the optimal ship form solution and fishing net yield were obtained, which can be referred as parameters and fishing net for the the ship form selection. The optimization method can be applied in the trawlers evaluation stage, so as to achieve the aims of optimize and analyze the ship form and fishing nets of the trawlers.
