实船试航中不同浅水效应修正方法的对比分析  

Comparison analysis of different methods for shallow water correction of speed trial

作　　者：胡琼[1] 韩用涛 张旭 HU Qiong;HAN Yong-tao;ZHANG Xu(China Ship Scientific Research Center,Wuxi 214082,China)

机构地区：[1]中国船舶科学研究中心,江苏无锡214082

出　　处：《舰船科学技术》2024年第7期9-13,共5页Ship Science and Technology

摘　　要：船舶航行时,当水深吃水比小于4或水深傅汝德数大于0.6时,会出现“浅水效应”。在实船测速试验中,需要对浅水效应进行适当修正,才能准确评估船舶的航速。目前常用的船舶浅水效应修正方法有Lackenby方法和Raven方法。本文介绍了这2种方法的基本原理和适用条件,并基于9艘船舶的实船测速试航数据,对这2种方法进行计算和比较,并分析2种方法对实船航速修正结果的影响,可为我国船舶测速试航及航速修正提供参考。When the ship is sailing,the shallow water effect will occur when the ratio of water depth to draught is less than 4 or the water depth Froude number is greater than 0.6.In the speed trail,the shallow water effect should be properly corrected to accurately evaluate the ship's speed.At present,there are two internationally recognized methods to correct shallow water effect of speed trial:the Lackenby method and the Raven method.In this paper,basic principles and applicable conditions of these two shallow water correction methods are introduced.Based on speed trial data for nine typical ships,the calculation and comparison of the two methods are carried out,and the influence of the two methods on the correction results of the actual ship speed is analyzed,which can provide reference for trial speed and speed correction.

关 键 词：船舶 浅水效应 航速修正 Lackenby方法 Raven方法 

分 类 号：U661.78[交通运输工程—船舶及航道工程]