CAJ | 학술논문

基于数值仿真原理，采用非线性有限元软件ANSYS／LS—DYNA对一艘3000t油船撞击桥墩进行仿真计算．考虑了材料非线性、几何非线性和接触非线性，建立了船桥碰撞有限元模型．分析了碰撞过程中能量、速度、碰撞力的变化，并将碰撞力的大小与国内外规范进行了比较．结果表明：最大碰撞力的估算美国规范和沃辛计算值偏大，我国公路规范的计算值偏小，我国铁路规范计算值与仿真计算结果较接近．
기우수치방진원리，채용비선성유한원연건ANSYS／LS—DYNA대일소3000t유선당격교돈진행방진계산．고필료재료비선성、궤하비선성화접촉비선성，건립료선교팽당유한원모형．분석료팽당과정중능량、속도、팽당력적변화，병장팽당력적대소여국내외규범진행료비교．결과표명：최대팽당력적고산미국규범화옥신계산치편대，아국공로규범적계산치편소，아국철로규범계산치여방진계산결과교접근．
Based on numerical simulation theory, the numerical simulation calculation of a 3 000 ton oil tanker impacting pier with the help of non-linear finite element software ANSYS/LS-DYNA is finished. The finite element model of ship-bridge with considered material nonlinearity, geometric nonlinearity and contact nonlinearity is built. The variation of energy, velocity and collision force during collision process are analyzed and the collision force is compared with the standards at home and abroad. The results indicate that the maximal collision forces of American standard and Woisin empirical formula is bigger than the simulation result, highway standard of our country is much smaller compared with the simulation result, and our railway code is the closest to the simulation result.