船舶在浅水中航行下沉量的计算方法  

Calculation methods of ship squat in shallow water

作　　者：洪碧光[1] 于洋[1] 

机构地区：[1]大连海事大学航海学院,辽宁大连116026

出　　处：《大连海事大学学报》2003年第2期1-5,共5页Journal of Dalian Maritime University

摘　　要：针对大型船舶在浅水域航行时的安全问题,讨论了影响富余水深的因素之一,即船体下沉量的计算问题.收集了多年来国际上应用比较广泛的多种计算方法,用不同的代表船型对各种船速下的浅水航行下沉量进行了计算,并对各种计算方法的适用范围及其误差进行了分析.计算可知:在船速相同时,同一种船型,用不同的公式进行计算的差别是很大的,特别是在船速大于8kn时,其差别随着船速的提高而越来越大.在分析的基础上,对于开敞的浅水水域,建议采用既安全又合理的Huuska(1976)计算公式.One safety problem of ship sailing in shallow waterway is under keel clearance (UKC). In this article, we deal with the problem of calculating squat that is one factor affecting UKC. Various calculation methods that have been in worldwide use for many years are collected, and squat of different kinds of ships at various speed in shallow water is calculated. The different calculation methods in scope of application and their errors have been analyzed. Calculation indicated that for the same kind of ship, the calculation results at same speed are very different when different methods are used, especially at the speed of over 8 knots. On the basis of analysis, in open shallow waterways, Huuska(1976) expression, which is safe and reasonable, is recommended.

关 键 词：船舶 浅水航行 下沉量 算法 Hooft公式 富余水深 Huuska公式 Eryuzlu公式 Barrass公式 Romisch公式 Millward公式 Ankudinov公式 船型 

分 类 号：U662.2[交通运输工程—船舶及航道工程] U675.58[交通运输工程—船舶与海洋工程]