摘要
由于作为海洋研究和开发的重要载体的供应船的控制技术决定着船舶能否按预定位置航行或停泊,因此,解决控制技术中的一个关键问题即确定船舶数学模型中的水动力导数很重要。采用CFD商用软件FLUENT,结合动网格技术,对系列供应船的纵荡运动进行数值模拟,得到系列船舶的纵向水动力,进而获得相应的纵向加速度导数,并分析数值计算结果的合理性。在此基础上,采用偏最小二乘的回归方法,得出供应船纵向加速度导数关于船型参数和呆木参数的估算公式。
The accuracy of ship model parameters is of critical importance to oceanographic research support ships which need motion control to move or stop according to given plan. The dynamic characteristics of a series of oceanographic research support ships are studied through numerical simulation of surge motion of ships, using commercial CFD software FLUENT and dynamic mesh technology, The hydrodynamic longitudinal derivatives of the ships are determined in the process. After the rationality of the results of the numerical calculation has been checked, the formula relating the ship longitudinal acceleration derivative to ship hull form and deadwood parameters are obtained by partial least square regression method.
出处
《中国航海》
CSCD
北大核心
2014年第4期88-91,共4页
Navigation of China
关键词
水路运输
供应船
纵向加速度导数
数值计算
回归公式
waterway transportation
supply vessel
longitudinal acceleration derivative
numerical calculation
regression formula
作者简介
赵小仨（1989-），女，湖北襄阳人，硕士，研究方向为船舶水动力。E-mail：741504374@qq．com
