Maneuvering Motion Simulation And Anti-Sinking Research Of Submarine

Since the beginning of this century,as the increase of people's demand for natural resources and the increasing depletion of land resources,the whole world's attention on the oceans and the dispute has never reached this level as it is today.Therefore,it is essential for all countries to enhance the protection of marine resources.As one of the most important modern naval forces,submarine plays a significant role on protecting the maritime rights.With the improvement of the anti-submarine technology and the increasing difficulty of the task requirements,the submarine's safety accidents occur frequently.Therefore,the research of the damaged submarine's control is very necessary.Based on the previous research,the paper studies the maneuvering and control of submarine which the compartments are damaged and makes the anti-sinking strategy system for the flooding of damaged on the stem compartments.Firstly,the paper establishes the six degrees of freedom motion mode of submarine.And based on the mathematical mode,the flooding of damaged compartments mathematical mode and the high-pressure blowing system are established.By combined with S surface control algorithm,this paper builds maneuvering,control and anti-sinking simulation system platform in VC ++ 6.0 program development environment.The paper compares the submarine's maneuvering of the normal condition and damaged condition based the simulation platform for the first time.By comparing the simulation results,the paper obtains the maneuverability regular of the submarine which compartments are damaged and analyses these results deeply.The paper mainly studies the anti-sinking of the submarine.As the submarine's normal control study is the foundation of the anti-sinking study,the paper studies the the automatic control of the submarine under the normal and the fault conditions through the simulation.There is a strong coupling effect between the deep control and the pitch control,so the paper proposed an S plane controller with a balanced control correction factor.The simulation results verified the controller excellent properties in submarine's depth automatic control.The paper has carried on the simulation research on the fault factors which influences the submarine vitality.According to the results of the simulation,the paper designed the submarine anti-sinking intelligent decision system for the most dangerous accident conditions.Combined with the characteristics of the submarine sinking after the compartments damaged,the paper designed an improved S plane controller with the pitch restraint.In this paper,two kinds of the anti-sink approach were used,which are "keeping the current depth" and "emergency buoyancy to the surfacing" Through the simulation,it obtained the optimal longitudinal velocity values for the two approaches of submarine anti-sinking.