船-桥碰撞力学问题研究现状及非线性有限元仿真

归纳研究了船舶与桥梁碰撞力学的几种典型计算方法，并对各自的特点进行了分析。文中借助DYTRAN非线性有限元程序，以一艘4万吨级的油船与长江上某一斜拉索桥发生正向碰撞为例，演示了有限元法仿真计算船-桥碰撞问题的一般过程。反映了船-桥碰撞过程中船艏、桥梁承合、桥面和拉索的力与变形的时间历程，得到了具有指导意义的结论。

A Review of Approaches to Mechanism of Ship-bridge Collision And Its Nonlinear FEM Simulation

An overview on the mechanism of the ship bridge collision is given in this paper. Employing MSC/DYTRAN program, a normal collision between ship and bridge is simulated. The history of ship bridge collision force, the exchange of energy, the displacements and the stress distribution of the ship bow and various parts of the bridge are presented. Some mechanical rules and characters during the simulated collision are given which are of great value for bridge design, maintenance and damage estimation.