基于NAPA软件的渔业船舶完整稳性分析

发布时间：2018-09-19 08:01

【摘要】：为验证NAPA软件在渔业船舶应用上的可行性和采用船舶静力学原理计算完整稳性的精确性,根据南海海域49.5 m金枪鱼延绳钓船的特定作业工况,分别采用NAPA软件和表格进行计算。计算结果表明,两种计算方法的偏差在2%左右,能够满足工程应用的精度要求。对气象衡准计算,分别采用了渔业船舶规则和国际海事组织(IMO)规则,由于算法不同,其偏差较大。通过比较发现,渔业船舶规则对气象衡准的要求高于IMO规则的要求。在没有条件使用大型船舶计算软件,且船舶处于平浮状态时,采用船舶静力学原理的计算结果是精确的。采用了船舶静力学原理并建立了NAPA计算模型,通过实例计算表明,NAPA软件具有在渔业船舶应用上的可行性和采用船舶静力学原理计算完整稳性的精确性,该结论可为船舶设计人员选取不同计算方法时提供参考依据。
[Abstract]:In order to verify the feasibility of NAPA software in the application of fishing vessels and the accuracy of using ship statics principle to calculate the integrity and stability, NAPA software and tables were used to calculate the specific operating conditions of 49.5 m tuna longline fishing vessels in the South China Sea. The calculation results show that the deviation between the two methods is about 2%, which can meet the requirements. Precision requirements for engineering applications. Fishery ship rules and IMO rules are adopted for the calculation of meteorological benchmarks, and the deviations are large due to different algorithms. By comparison, it is found that the requirements for meteorological benchmarks in fishery ship rules are higher than those in IMO rules. The calculation results of the ship statics principle are accurate in the leveling state. The ship statics principle is adopted and the NAPA calculation model is established. The practical calculation shows that the NAPA software is feasible in the application of fishing vessels and the accuracy of the calculation of the integrity and stability by the ship statics principle is accurate. The conclusion can be used for ship designers. The staff can provide reference for selecting different calculation methods.
【作者单位】：上海交通大学船舶海洋与建筑工程学院;农业部渔业装备与工程技术重点实验室中国水产科学研究院渔业机械仪器研究所;
【基金】：公益性行业(农业)科研专项“渔业节能关键技术研究与重大装备开发(201003024)” 上海市科技兴农项目“渔船船型标准化及节能技术集成示范与推广(沪农科推字2012第2-3号)”
【分类号】：U661.22;U674.4

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