The Study Of Tanker’s Collision Result And Prevention And Control Suggestion Based On Finite Element

According to statistics,it is found that ocean accidents are mostly caused by collision of ships,and once an accident occurs,the impact is often difficult to estimate.The study found that the main causes of ship collision are mostly unavoidable human factors,but some improvements can still be made from the perspective of ship structure and the prevention and control of collision consequences through simulation experiments.However,it often requires actual ship test to change ship structure,which requires a lot of manpower and financial resources.In order to save time,manpower,material resources and financial resources,numerical simulation is used to find a method to reduce or even avoid collision under the condition of changing ship tonnage,initial velocity and collision angle,and to lay the foundation for the study of ship collision risk.In this paper,the tanker and cargo ship in the crossing route from Laotieshan to Tianjin customary route are selected through consulting data and actual observation.After determining the types of ships involved in the collision,ANSYS/LS-DYNA software is used to model the ships respectively;Then I change the collision parameters(ship tonnage,collision Angle,initial velocity)and observe their impact on the collision results for comparative study;In the end,this paper selects the collision mode between bow of cargo ship with side of tanker and generates displacement,collision force and internal energy change chart through the post-processing software,and analyzes the damage degree and energy absorption characteristics of side of tanker,so as to summarize a general conclusion with guiding significance.According to the results,we know the greater the tonnage and the initial speed of collision,the greater the damage to the collided ship;The vertical collision will cause the greatest damage to the collided ship and is unmatched by other collision angles(eg 300 and 45°).Based on the impact of collision parameters on the collision performance of the ship,this paper provides some targeted collision avoidance suggestions and prevention coupled with control suggestion and emergency measures after the collision to reduce the probability of collision and the degree of damage.