摘要
采用Hess Smith方法编制三维物体近边界运动时附加质量计算程序 ,与椭球体的理论计算值比较验证了该程序的可靠性。利用MSC Patran预处理软件对潜艇及底部边界进行网格划分 ,计算了潜艇在不同的海底间隙、不同的纵倾角及通过海底台阶时的艇体附加质量 ,得到潜艇在近海底航行时附加质量的变化规律。最后以海底间隙、艇体纵倾角和距海底台阶距离为参变数 ,整理了潜艇近海底航行时附加质量的变化规律。
A computation program for calcula ting added mass of an arbitrary three dimensional body maneuvering with a small clearance to sea bottom is developed by the Hess Smith method. The program′s reliability has been certified by comparison with the theoretically calculated added mass of ellipsoid. The comparison shows that results of this program coinc ide with theoretical data. In the program, submarine and its bottom boundary are partitioned into cells by use of MSC-Patran software. The added mass of a subm arine maneuvering with various bottom clearances, different pitching angles and elevations from sea bottom is calculated and treated,and thereby, a variation l ay of inertial hydrodynamics of the submarine is gained. Finally, a variation la y of the added mass is induced.
出处
《船舶工程》
CSCD
北大核心
2003年第1期26-29,共4页
Ship Engineering
