船舶撞击下弧形钢闸门的动力分析OA北大核心CSTPCD

To address the problem of gate damage caused by instantaneous variations during impact,we used the fi-nite element method to simulate the impact of a ship on an arc steel gate.A contact model between the ship and gate was established using ANSYS,and a finite element analysis was conducted with the simulation software LS-DYNA3D.Our study examined the impact force of a ship at various speeds and masses and analyzed the displace-ment,equivalent stress,and equivalent plastic strain on the gate under different working conditions.Furthermore,we investigated the energy characteristic curve throughout the impact process.Pressure rods were arranged accord-ing to the force characteristics of the gate to study its protective effect on the support arm.The calculation results indicate that the support arm and the panel are critical components for ensuring the safety of the gate structure.Op-timally placing pressure rods at the bifurcation point of the support arm and the flange of the longitudinal beam proved effective in absorbing impact kinetic energy,thereby reducing gate damage.The simulation results show the whole process of the collision between the ship and the curved steel gate,providing realistic data for gate design and manufacturing.These insights also serve as a reference for reinforcing existing gate structures.