三次样条曲线在船舶配载仪中的应用  

Application of Cubic Spline Curve in Marine Stowage Program

作　　者：段兴锋[1] 东昉[2] 

机构地区：[1]集美大学航海学院,福建厦门361031 [2]大连海事大学航海学院,辽宁大连116026

出　　处：《中国航海》2008年第3期269-271,共3页Navigation of China

摘　　要：船舶配载的不合理是船舶事故的主要原因之一,而船舶配载软件能帮助驾驶员核算和调整船舶的浮态、稳性和强度,从而改善船舶运输的安全性。因此如何改进计算方法,提高配载软件的计算精度和合理性也随即成为航海人员需要解决的问题。采用三次样条曲线拟合邦戎曲线,对艏艉处数据进行加密处理,解决了船舶资料中所提供的邦戎曲线在艏艉处精度不够的问题,并利用三次样条曲线表达出静稳性曲线,然后利用二分法对其导数求根,得出极限静倾角,提高了数据精度,改善了配载程序界面。Ship＇s improper stowage is one of main reasons for accidents. Marine storage software can help officers check and adjust ship floating states, stability and strength, accordingly improve shipping safety. It is important to improve the calculation method and to enhance the precision and rationality of the stowage software. Cubic spline curve can be an addition to Bonjean＇s curve solving the problem of unprecise data for bow and stern. To enhance data precision and to improve the interface of storage program, the ship stability curve is also expressed by cubic spline curve and the limit heeling angle is calculated.

关 键 词：水路运输 配载 邦戎曲线 静稳性曲线 三次样条 总纵强度 

分 类 号：U693.41[交通运输工程—港口、海岸及近海工程]