减摇板改造的打桩船可作业窗口  

Weather Window for a Pile Driving Vessel Converted with Anti-Roll Plates

作　　者：杜宇 王凯 DU Yu;WANG Kai(CCCC Third Harbor Engineering Co.,Ltd,Shanghai 200032,China;School of Marine Engineering and Technology,Sun Yat-Sen University,Zhuhai 519082,Guangdong,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519082,Guangdong,China)

机构地区：[1]中交第三航务工程局有限公司,上海200032 [2]中山大学海洋工程与技术学院,广东珠海519082 [3]南方海洋科学与工程广东省实验室(珠海),广东珠海519082

出　　处：《船舶工程》2022年第7期115-121,共7页Ship Engineering

基　　金：广东省自然资源厅2020年省级促进经济高质量发展专项资金(粤自然资合GDNRC[2020]015号)。

摘　　要：提出了一种增加减摇板的打桩船改造方法,并以某打桩船为例进行基本改造方案的设计和分析。水动力计算结果显示,增加减摇板的打桩船在迎浪工况下的运动响应RAO会略有增加,但船体横摇RAO在频域上向低频平移。结合某海上风场5年海上波浪后报数据,对打桩船改造前后的可作业窗口比例进行计算。计算结果显示:改造后的打桩船虽然在迎、顺浪工况下可作业窗口比例略有所下降,但在其他迎浪角度下的可作业性均有较大提高,从而使得整体可作业窗口比例出现较大提升。A method of retrofitting a pile driving vessel with additional anti rolling plates is proposed,and the basic retrofitting scheme is designed and analyzed by taking a pile driving vessel as an example.The hydrodynamic calculation results show that the vessel gripper heave RAO is increased a little bit after conversion,whereas the vessel roll RAO is shifted towards low frequency side.The workable window ratio after conversion is investigated with 5 years hind cast wave data for a specific sea area.The calculation results reveal that although the workable window ratio for the head sea and follow sea conditions decreases a little bit,it substantially increases for other wave heading angles,and consequently leading to an overall enhancement on the workable window ratio.

关 键 词：打桩船 耐波性 时-频域联合计算 减摇板 可作业窗口比例 

分 类 号：U674.32[交通运输工程—船舶及航道工程]