摘要
三维结构在水中做非定常运动时伴随着附加质量力的影响,从而其运动特性会发生一定的变化,附加质量是表征水下航行体的水动力性能的一个重要参量。基于有限元软件,根据势流理论,采用格林函数方法分别计算刚体、弹性体及结构刚弹耦合的附加质量,同时考虑各影响因素对附加质量的影响程度,对其各方面特性进行研究分析,最终得到对结构水动力研究有重要影响的结论。
When three- dimensional structure does unsteady motion in the water it goes along with the impact of added mass force,thus some certain changes of motion characteristics will happen,added mass is an important parameter of the hydrodynamic performance characterization of underwater vehicle. Based on the finite element software,according to the potential flow theory,using the Green's function to calculate the added mass of rigid body,elastomer and rigid- elastic coupling structural respectively,taking into account of the degree of influence on added mass by various influence factors,to study and analyze the various characteristics of them,finally gaining conclusions on which have important effect on the hydrodynamic study.
出处
《江苏船舶》
2014年第5期5-9,共5页
Jiangsu Ship
