船艏横向加强框架对船艏耐撞性能的影响

在撞击过程中船艏结构的典型损伤是外壳板和内加筋的褶皱，撕裂和弯曲。在以前的船舶结构的碰撞分析的简化方法或数值模拟中往往略去横向肋骨框架对船艏碰撞性能的影响。本文利用有限元数值仿真方法研究了横向肋骨框架在碰撞损坏过程中的作用，发现其对船艏结构的损伤形态、碰撞力及能量耗散有重要影响。因而是碰撞计算中不可忽略的因素。

Effect of Transverse Frames to Collision Character of Ship Bow

The typical damage of ship bow are crushing, tearing and bending of ship bow shell and stiffeners. It is often omit the effect of transverse frames to collision character of ship bow in simple theortical method or numerical simulation method for analysis of ship collisions. The action of transverse frames during ship collision damage is studied using finite element simulation. It is discovered that transverse frames act important effect on damage mode, collision force energy dissipation of ship bow structures. So it can not be omitted in collision calculation.