桥墩防撞装置碰撞动力学分析

Analysis on Collision Dynamics About Collision-preventing Device of Pier

运用非线性有限元基本理论 ,采用国际上广泛使用的大型结构分析程序 LS-DYNA,建立了船舶和桥墩防护装置的三维有限元计算模型 .分析了防护装置碰撞特点、船首及构件的损伤和吸能特性 ,得出了主要吸能结构吸能比例 ,碰撞力曲线的非线性特点 ,船体和防撞装置外板是主要的吸能结构等结论 .

Based on the nonlinear finite element theory and the finite element analysis program LS-DYNA, the 3D finite element calculation mode of ship and collision-preventing device of the piers are built. The ship-bridge collision characteristic, the energy absorption trait and damage of the collision-preventing device and ship structure are discussed. Meanwhile, the rate of the main components, the non-linear characteristic for collision rorce curve and the main absorbing components (the outside plane of the ship and collision-preventing device) are also concluded in this paper.