摘要
为提高船舶结构碰撞动力学计算精度,本文首先建立船舶结构碰撞动力学模型,并对材料应变过程进行详细的受力分析。建立精确的用于描述材料塑性流动应变模型。基于Matlab软件对船舶碰撞外部动力学过程进行数值计算,得出结构碰撞载荷及能量响应。计算结果表明,整个碰撞过程中,结构应变呈现出连续增长趋势,结构的屈曲将连续发生,表明船身结构受到破坏后将无法保持其强度的稳定性。
In order to improve the accuracy of collision dynamics,this paper establishes a impact dynamic model of the ship structure,and analyzes the strain process of the material. Based on the MATLAB software,the numerical calculation of the external dynamic process of the ship collision is carried out,and the structure impact load and energy response are obtained. Calculation results show that: during the collision process,structure strain showing a continuous growth trend, the buckling of the structure will occur continuously,indicating that the hull structure damage will not be able to maintain the stability of its strength.
出处
《舰船科学技术》
北大核心
2016年第4X期7-9,共3页
Ship Science and Technology
关键词
船舶碰撞
动力学
结构应变
有限元
ship collision
dynamics
structural strain
finite element method
