摘要
文章研究了由冲撞式破冰引起的船舯垂向弯矩的计算方法。确定了模拟冲撞式破冰过程的有限元建模准则,对有限元软件进行了二次开发,采用多重失效面方式定义冰层的破坏模式。开发了FORTRAN程序,提取环境外载荷,计算由冲撞式破冰引起的船舯垂向弯矩,为预报船冰碰撞载荷提供了一种新的方法。
A finite element method is introduced to calculate vertical moment in amidships caused by crash-breaking way. The principle of finite element model is discussed. And ice failure mode is based on multi-surface criterion. The crash-icebreaking way is simulated through the secondary development technology of finite element software. The FORTRAN program is developed to calculate the vertical moment in amidships, which provides a new method to predict ship and ice collision load.
出处
《船舶力学》
EI
CSCD
北大核心
2014年第9期1109-1116,共8页
Journal of Ship Mechanics
基金
Supported by the National Natural Science Foundation of China(51109046)
关键词
冲撞式破冰
垂向弯矩
海冰破坏模式
建模准则
二次开发
ice crash-breaking way
vertical bending moment
ice failure mode
mode principle
secondary development
