Changing depth by strong movement to avoided torpedo terminal attack trajectory is one of the methods of submarine avoiding torpedo attack,and this method is also the final defense measure of submarine avoiding torpedo attack.The feasibility and effectiveness of this evasion method can provide reference for submarine commanders to scientifically and reasonably maneuver the submarine to evade torpedo attacks,which has very important theoretical research significance and military application value for improving the submarine's vitality and combat effectiveness.Based on the theoretical analysis of the basic principle of the strong maneuver evasion scheme and the effect of different maneuver modes,and the modeling simulation calculation of the relative motion situation of the submarine and the torpedo,the paper verifies the effect of the submarine's strong maneuver by changing depth to evade the torpedo attack.Simulation shows that,within a certain distance,the high-speed maneuvering submarine uses high-pressure air to blow away the water in the main ballast water tank,and at the same time adopts the upward floating large rudder horn to make the submarine large tail incline high-speed upward floating to the surface to avoid the torpedo end attack trajectory,and then quickly dives to the shallow water layer to complete the avoidance of torpedo attack,this tactical maneuvering evasion measures are theoretically feasible,but the timing of this program should be considered and analyzed fully.
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