中国舰船研究2017，Vol.12Issue(2)：84-91,8.DOI:10.3969/j.issn.1673-3185.2017.02.011
船舶碰撞机理三维解析法实现及恢复系数研究
3D analytical method for the external dynamics of ship collisions and investigation of the coefficient of restitution
摘要
Abstract
The analytical method for predicting the dynamic responses of a ship in a collision scenario features speed and accuracy,and the external dynamics constitute an important part. A 3D simplified analytical method is implemented by MATLAB and used to calculate the energy dissipation of ship-ship collisions. The results obtained by the proposed method are then compared with those of a 2D simplified analytical method. The total dissipated energy can be obtained through the proposed analytical method, and the influence of the collision heights,angles and locations on the dissipated energy is discussed on that basis. Furthermore,the effects of restitution on the conservative coefficients and the effects of conservative coefficients on energy dissipation are discussed. It is concluded that the proposed 3D analysis yields a lesser energy dissipation than that of the 2D analysis,and the collision height has a significant influence on the dissipated energy. In using the proposed simplified method,it is not safe to simplify the conservative coefficient as zero when the collision angle is greater than 90 degrees. In the future research, to get more accurate energy dissipation, it is a good way to adopt the 3D simplified analytical method instead of the 2D method.关键词
船舶碰撞/外部动力学/三维解析法/能量耗散/恢复系数Key words
ship collisions/external dynamics/3D analytical method/energy dissipation/restitution coefficient分类
交通工程引用本文复制引用
刘俊峰,胡志强..船舶碰撞机理三维解析法实现及恢复系数研究[J].中国舰船研究,2017,12(2):84-91,8.基金项目
国家自然科学基金重点项目资助(51239007) （51239007）
