Research On The Drift Model Simulation For Ship Under Influence Of Multi-factors

With the increasing of maritime transportation,the frequent occurrence of maritime accidents also increases,it is our first priority to set up a ship drifting model with high efficiency.The ship drift model is developed from a simple theoretical model into a ship drift model with visualization system.At present,the research trend of ship drift model is the study of ship drift model with 3D visualization system.This article is carried out though studying several factors that affects ship drift,and select appropriate methods to establish a3 D visualization for innovative research,which will provide theoretical basis and reference for China's maritime search and rescue,so as to improve the level of China's maritime search and rescue.This paper has analyzed and studied the influence factors of ship drift model and drift trajectory technique.First of all,the study of the influence factor of ship drift is little,which leads to a inaccurate ship drift model prediction,this paper proposes a Nash equilibrium method to deal with ship drift under the influence of multiple factors.In the past,the study of influence factor of ship drift is limited to the wind field and flow field,based on the previous studies,this paper takes advantage of Nash equilibrium method to analysis the wave,turbulence,material,invasion ratio and other factors,to make sure that the ship reach the Nash equilibrium in the drift process,so as to improve the accuracy of prediction of ship drift model.Secondly,aiming at the current problem that the low fitting accuracy of ship drift route,this paper puts forward particle recasting simulation to predict the ship drift route from the view of subsection prediction.Aiming at the current problem that the prediction of ship drift model trajectory will lead to the decline of fitting degree with the increase of time,this paper puts forward the method of particle recasting simulation to predict the drift path of ship.The simulation method is to divide the whole drift time into several segments,and each segment is updated after the prediction,and then continue to predict,until the whole drift process is finished,and then obtain the whole drift route.Due to the timely update of the information,the drift trajectory is closer to the true drift path,which will improve the fitting degree of the ship drift trajectory effectively.Finally,by using Nash equilibrium method to deal with several influence factors of ship drift,based on the the particle simulation method to predict ship drift route to establish new ship drift model,at the same time using unity3 D to compile a 3D visualization model to integrate the above all model,transfer the 2D drift route into 3D drift process,and realize the 3D visualization of ship drift model.