双体船砰击载荷数值仿真分析  

Numerical Study of Slamming Loads Impacting on Catamaran

作　　者：司海龙[1] 蒋彩霞[1] 徐国徽[1] SI Hai-long;JANG Cai-xia;XU Guo-hui(China Ship Scientific Research Center,Wuxi Jiangsu 214082,China)

机构地区：[1]中国船舶科学研究中心,江苏无锡214082

出　　处：《船海工程》2018年第5期51-55,共5页Ship & Ocean Engineering

摘　　要：采用Sesam软件计算出船舶相对运动及砰击瞬时船舶与波浪之间的相对速度,采用FLUENT和MSC. DYTRAN软件计算出船体各点的砰击压力系数,最终计算出不同海况条件下各点的砰击压力,对双体船砰击载荷沿船长及高度方向的分布进行了分析,并讨论结构弹性效应对砰击载荷的影响。Ship′s motion and velocity between ship and wave was calculated with Sesam at the instant of slamming occur.The slamming coefficient was calculated based on both fluent and MSC.Dytran.Ship′s slamming pressure was calculated based on relative velocity between ship and wave in different sea state.The longitudinal and vertical distribution of slamming pressure was analyzed.In addition,the influence of elasticity of structure upon slamming pressure was studied.

关 键 词：双体船 入水速度 砰击载荷 流固耦合 

分 类 号：U661.1[交通运输工程—船舶及航道工程]