单元柯钦函数精确积分的多体船兴波阻力计算  

Calculating the wave making resistance of multi-hull ships based on an integral expression of the Kochin function on the surface panels

作　　者：王中[1] 卢晓平[1] 钟士岗 

机构地区：[1]海军工程大学船舶与动力学院,湖北武汉430033 [2]广州海军保障基地91630部队,广东广州510000

出　　处：《哈尔滨工程大学学报》2009年第6期602-606,共5页Journal of Harbin Engineering University

基　　金：国防预研基金资助项目(9140A306JB11)

摘　　要：为计算多体船兴波阻力,改进了Michell线性薄船兴波阻力数值计算方法.以改进的蝶形插值细分曲面方法表达船型,采用船体曲面法向量表示源强,结合三角单元上柯钦函数精确积分解析表达式求解多体船兴波阻力.对2条双体船和2条三体船兴波阻力进行了数值计算,通过计算结果与模型试验结果比较,验证了计算方法的有效性以及计算结果准确性.插值型细分曲面船型构造结合三角单元上柯钦函数精确积分的兴波阻力表达式有利于提高兴波阻力计算精度,且便于发展为船型减阻优化工程设计方法.In order to calculate the wave making resistance modified. A modified butterfly surface subdivision method of multi-hull ships, the Michell wave making method was was used to define the ships hull, and the ships surface vector was used as source intensity. Then the wave making resistance of the multi-hull ship was calculated using the integral expression of the Kochin function on triangular panels. Four ship models （ two catamaran and two trimaran） were taken as examples for the calculations, and the numerical results were compared with experimental data. The results indicate that the proposed method improves the precision of linear wave making resistance theory and can be conveniently used for ship hull optimization.

关 键 词：兴波阻力 多体船 细分曲面 面元法 

分 类 号：U661.31[交通运输工程—船舶及航道工程]