船舶在随浪中的增阻和失速研究  

Research on the Added Resistance and Speed Loss for the Ship in Following Sea

作　　者：陆泽华 曹旭 李建鹏[1] LU Zehua;CAO Xu;LI Jianpeng(State Key Laboratory of Navigation and Safety Technology,Shanghai Ship and Shipping Research Institute,Shanghai 200135,China)

机构地区：[1]上海船舶运输科学研究所航运技术与安全国家重点实验室,上海200135

出　　处：《上海船舶运输科学研究所学报》2021年第3期1-5,21,共6页Journal of Shanghai Ship and Shipping Research Institute

摘　　要：针对国际拖曳水池会议(International Towing Tank Conference,ITTC)推荐的实船试航航速修正方法中对波浪增阻的修正未严格区分迎浪工况和随浪工况的情况,对一艘50500载重吨油船进行随浪规则波模型试验,并将所得结果与迎浪规则波模型试验结果相对比,研究船舶在随浪中的波浪增阻和运动规律。采用ITTC实船功率预报推荐的阻力推力一致法对该船进行实际海况下的失速预报分析,对比迎浪和随浪工况下的实船失速预报情况。结果发现,在相同等级的海况下,随浪工况下的船舶失速比迎浪工况下的船舶失速小,且随着海况等级的提升,两者的失速差值越来越大。A model of 50500 DWT tanker is tested to examine the added wave resistance and its motion under the conditions of following regular waves and heading waves.The differences of the effect on a ship between the two conditions are not considered in the calculation method recommended by ITTC(International Towing Tank Conference).The estimated speed losses under the sea conditions are calculated by means of the RTIM(Resistance Thrust Identity Method)recommended by ITTC.It is proved that the higher the sea state is the more noticeable the difference of speed loss is for the two conditions.This research demonstrates the improvements can be done for ITTC recommended speed correction formula.

关 键 词：随浪 波浪增阻 船舶失速 航速修正 

分 类 号：U661.32[交通运输工程—船舶及航道工程]