摘要
为分析直接计算波浪载荷在全船有限元分析中的加载问题,对确保载荷施加正确的两个关键问题进行研究:对于外部水动压力施加,给出一种可以获得最优映射关系的基于面积比最小判定的水动压力映射方法;对于货物压力和惯性力施加,分析全船有限元分析与水动力分析的坐标转换关系,并给出坐标系转换后的加速度计算公式,并通过一艘20000TEU集装箱船的加载平衡检验验证相关方法的合理性。
Two key problems to ensure correct loading in whole ship finite element analysis were studied:for loading of external hydrodynamic pressure,an optimal mapping method based on minimum area ratio was given;coordinate transformation relation between ship FEM and hydrodynamic analysis was also studied,and the formula of acceleration after transformation of coordinate system was given for tank pressure and inertia force loading.The rationality of these related methods has been verified by equilibrium check of loading on a 20 000 TEU container ship.
作者
李丽
刘日明
LI Li;LIU Ri-ming(Technology Research and Development Center,China Classification Society,Beijing 100007,China)
出处
《船海工程》
北大核心
2019年第A01期12-15,共4页
Ship & Ocean Engineering
关键词
波浪载荷
全船有限元
压力映射
平衡检验
惯性释放
wave load
whole ship finite element analysis
pressure mapping
equilibrium check
inertia relief
